I think I made a small mistake and I need help to spot my mistake and the correct steps to solve my question, I hope someone can help me asap. I will be very much appreciated!!
(Question b)

I Think I Made A Small Mistake And I Need Help To Spot My Mistake And The Correct Steps To Solve My Question,
I Think I Made A Small Mistake And I Need Help To Spot My Mistake And The Correct Steps To Solve My Question,

Answers

Answer 1

The values of x in 2cos(2x) = 11cos(x) + 1 are x = 1.82 and x = 4.46

How to solve for x?

The equation is given as:

2cos(2x) = 11cos(x) + 1

Expand cos(2x)

2(cos²(x) - sin²(x)) = 11cos(x) + 1

sin²(x) = 1 - cos²(x)

So, we have:

2(cos²(x) - 1 + cos²(x)) = 11cos(x) + 1

Evaluate the like terms

2(2cos²(x) - 1) = 11cos(x) + 1

Expand

4cos²(x) - 2 = 11cos(x) + 1

Rewrite as:

4cos²(x) - 11cos(x)  - 2 - 1 = 0

4cos²(x) - 11cos(x)  - 3 = 0

Let cos(x) = y.

So, we have

4y² - 11y - 3 = 0

Expand

4y² + y - 12y - 3 = 0

Factorize

y(4y + 1) - 3(4y + 1) = 0

Factor out 4y + 1

(y - 3)(4y + 1) = 0

Solve for y

y = 3 or 4y = -1

This gives

y = 3 or y = -1/4

Recall that y = cos(x)

So, we have:

cos(x) = 3 or cos(x) = -1/4

The cosine of x is always between -1 and 1 (inclusive).

So, we have:

cos(x) = -1/4

Take the arc cos

[tex]x =\cos^{-1}(-1/4)[/tex]

Evaluate the arccos (in radians)

x = 1.82 and x = 4.46

Hence, the values of x in 2cos(2x) = 11cos(x) + 1 are x = 1.82 and x = 4.46

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Related Questions

2 2/3 * 2 2/3 = how many thirds as a fraction

Answers

Answer:

[tex]21 \frac{1}{3}[/tex] fit into the product

Step-by-step explanation:

so you want to convert [tex]2 \frac{2}{3}[/tex] into a fraction by multiplying 2 by 3 and adding it to the 2. This will give you (3 * 2) = 6 => 6+2=8 which is the numerator. So the fraction becomes [tex]\frac{8}{3}[/tex] and since the two fractions are equal they both become this. So now you have [tex]\frac{8}{3} * \frac{8}{3}[/tex] which can be calculated by multiplying the numerators and denominators. This gives you [tex]\frac{8*8}{3*3} = \frac{64}{9}[/tex]. Now this just gives you the product but the question is asking you how many one thirds is the product. This is essentially saying how many 1/3 fit into the product or in other words what is the product divided by 1/3. This gives you the equation [tex]\frac{64}{9} \div \frac{1}{3}[/tex] which can be calculated by changing the sign to multiplication and flipping the second fraction (1/3 => 3/1) This gives you the equation [tex]\frac{64}{9} * \frac{3}{1} = \frac{64 * 3}{3 * 3} = \frac{64}{3}[/tex]. I rewrote the 9 as 3 * 3 in the equation so you can see that we can just cancel out the 3. Since if have a number and multiply it by "x" and divide by "x" you just have the original number. So now you have 64/3 which simplifies to [tex]21 \frac{1}{3}[/tex]

[tex]\huge\text{Hey there!}[/tex]

[tex]\mathsf{2\dfrac{2}{3}\times 2 \dfrac{2}{3}}[/tex]

[tex]\mathsf{= \dfrac{2\times3+2}{3}\times\dfrac{2\times 3 + 2}{3}}}[/tex]

[tex]\mathsf{= \dfrac{6 + 2}{3}\times \dfrac{6 + 2}{3}}[/tex]

[tex]\mathsf{= \dfrac{8}{3}\times\dfrac{8}{3}}[/tex]

[tex]\mathsf{= \dfrac{8\times8}{3\times3}}[/tex]

[tex]\mathsf{= \dfrac{8 + 8 + 8 + 8 + 8 + 8 + 8 + 8}{3 + 3 + 3}}[/tex]

[tex]\mathsf{= \dfrac{16 + 16 + 16 + 16}{6 + 3}}[/tex]

[tex]\mathsf{= \dfrac{32 + 32}{9}}[/tex]

[tex]\mathsf{= \dfrac{64}{9}}[/tex]

[tex]\mathsf{= 7 \dfrac{1}{9}}[/tex]

[tex]\approx{\mathsf{21 \dfrac{1}{3}}}[/tex]

[tex]\huge\textbf{Therefore, your answer should be:}[/tex]

[tex]\huge\boxed{\frak{21\dfrac{1}{3}}}\huge\checkmark[/tex]

[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

a washer and dryer costs $745 combined the washer costs $45 more than the dryer how much does the dryer cost

Answers

Oh, be very careful about the "$87."

Let the dryer cost x.
Then, the washer costs (x+87)

Together, they cost (x) + (x+87) = 787
2x+87 = 787
2x = 700 [subtract 97 from both sides]
x = 350 [divide both sides by 2]

The dryer cost $350.

Check: The washer cost $437. Together, they cost $787 [good to check, right?]

Arianna drove 180 miles in 3 hours. If she continued at the same rate, how long would it take to travel 960 miles?

Answers

Answer: 16 hours

Step-by-step explanation: If 180 miles was completed in 3 hours, it means 60 miles was completed in 1 hour (180 ÷ 3 = 60.) Now we just do 960 ÷ 60 and we get 16 hours of time at a constant speed, assuming no further alterations were made to accelerations.

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Arianna can travel 960 mi in 16 hours.

What is speed?

Speed is defined as the rate of change of position of an object in any direction.

Given that, Arianna drove 180 miles in 3 hours.

As we know, Speed is the ratio of distance to the time in which the distance was covered.

Speed = distance/time

Ariana's speed = 180/3 = 60 mi/hr

Therefore, time taken by her to travel 960 mi = 960/60 = 16 hr.

Hence, Arianna can travel 960 mi in 16 hours.

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The triangles shown below must be congruent.

Answers

Answer:

Yes, they are congruent

Step-by-step explanation:

The triangles are congruent as they follow the ASA rule or, Angle Side Angle.

All the angles AND sides are corresponding, so they are congruent.

Hope this helped (:

Select the correct answer Consider functions p and q. p(x) = log₂ (x - 1) g(x) = 2^x - 1 Which statement is true about these functions?
A The x-intercept of function pis greater than the x-intercept of function q.

B. The x-intercept of function p is less than the x-intercept of function q.

C. The x-intercepts cannot be compared because either por q does not have an x-intercept.

D. The x-intercept of function p is the same as the x-intercept of function q.​

Answers

The x-intercept of p(x) is x = 2, the x-intercept of g(x) is x = 0, then the correct option is B.

What can we say about the x-intercepts of the given functions?

For a function f(x), the x-intercept is the value of x such that:

f(x) = 0.

Here we have:

p(x) = log₂(x - 1)

Remember that:

logₙ(1)  = 0

For any base n, then the x-intercept of p(x) is x = 2, because:

p(2) = log₂(2 - 1) = log₂(1) = 0.

The other function is:

g(x) = 2ˣ - 1

Remember that any number to the power of zero is equal to 1, then:

g(0) = 2⁰ - 1 = 1 - 1 = 0

The x-intercept of p(x) is x = 2, the x-intercept of g(x) is x = 0, then the correct option is B.

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Answer:

The x-intercept of function p is greater than the x-intercept of function q.

Step-by-step explanation:

Plato/Edmentum

Need the answer for 18 please!!!

Answers

Answer:

D (2, 1)

Step-by-step explanation:

Fir an in-detailed representation, image below

Started with plotting the given center (yellow)From the center: go 5 units up, down, right and left (light blue)You will have 5 points plotted nowconnect the light blue dots to form a circle (red, not to scale!)Now, locate every choice point, which one is on the red line?D!!!!!

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If Amy takes this year's savings of 1,200.00 and deposits it into an 18-month Certificate of Deposit account earning 1.25% APY with monthly-paid interest, how much interest will she earn?

Answers

Using compound interest, it is found that she will earn $23 in interest during the 18-month period.

What is compound interest?

The amount of money earned, in compound interest, after t years, is given by:

[tex]A(t) = P\left(1 + \frac{r}{n}\right)^{nt}[/tex]

In which:

A(t) is the amount of money after t years. P is the principal(the initial sum of money). r is the interest rate(as a decimal value). n is the number of times that interest is compounded per year.

The parameters in this problem are given as follows:

[tex]P = 1200, r = 0.0125, n = 12, t = 1.5[/tex].

The amount of money at the end of the 18 months will be of:

[tex]A(t) = P\left(1 + \frac{r}{n}\right)^{nt}[/tex]

[tex]A(t) = 1200\left(1 + \frac{0.0125}{12}\right)^{12(1.5)}[/tex]

A(t) = $1,223.

The amount of interest earned is:

I = $1,223 - $1,200 = $23.

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a. A professional football kicker has a 98.8% probability of successfully kicking an extra point after a touchdown. Assuming statistical independence, what is the probability that this kicker will successfully make all of his next eleven extra point kicks? Round your answer to four decimal places. Probability = b. What is the probability that the kicker will miss at least one of his next eleven extra point kicks? Round your answer to four decimal places. Probability = c. A professional golfer has a 92.75% probability of making a 5-foot putt. Assuming statistical independence, what is the probability that this golfer will successfully make all of his next eight 5-foot putts? Round your answer to four decimal places. Probability = d. What is the probability that the golfer will miss at least one of his next eight 5-foot putts? Round your answer to four decimal places. Probability =

Answers

A common discrete distribution used in statistics, as opposed to a continuous distribution is called a Binomial distribution. The probability that the golfer will miss at least one of his next eight 5-foot putts is 0.4523.

What is Binomial distribution?

A common discrete distribution is used in statistics, as opposed to a continuous distribution is called a Binomial distribution. It is given by the formula,

P(x) = ⁿCₓ (pˣ) (q⁽ⁿ⁻ˣ⁾)

Where,

x is the number of successes needed,

n is the number of trials or sample size,

p is the probability of a single success, and

q is the probability of a single failure.

A.) The probability that this kicker will successfully make all of his next eleven extra-point kicks is,

P(x=11) = ¹¹C₁₁ (0.988¹¹) (0.012⁰)

           = 0.8756

B.) The probability that the kicker will miss at least one of his next eleven extra point kicks is,

P(X<11) = 1 - P(X=11)

           = 1 - 0.8756

           = 0.1243

C.) The probability that this golfer will successfully make all of his next eight 5-foot putts is,

P(x=8) = ⁸C₈ (0.9275⁸) (0.0725⁰)

          = 0.5477

D.) The probability that the golfer will miss at least one of his next eight 5-foot putts is,

P(X<8) = 1 - P(X=8)

          = 1 - 0.5477

          = 0.4523

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find x on the following figure​

Answers

If the perpendicular from chord is x, the length of cord is 11.3 and diameter be 15.5 then the value of x is 4.54.

Given Perpendicular from center to chord is x. The length of cord be 11.3 and the diameter be 15.5.

Perpendicular means a line on other line making an angle of 90 degrees. Cord is the length of line joining two points on a circle and is different from radius or diameter. We know that the formula of calculating the length of chord is as under:

l=[tex]2\sqrt{r^{2} -d^{2} }[/tex]

now put the value of l=11.3 and r=15.5/2=7.25

11.3=[tex]2\sqrt{7.25^{2} -x^{2} }[/tex]

11.3/2=[tex]\sqrt{52.5625-x^{2} }[/tex]

5.65=[tex]\sqrt{52.5625-x^{2} }[/tex]

squaring both sides

[tex]5.65^{2} =52.5625-x^{2}[/tex]

31.9225=52.5625-[tex]x^{2}[/tex]

31.9225-52.5625=-[tex]x^{2}[/tex]

-20.64=-[tex]x^{2}[/tex]

20.64=[tex]x^{2}[/tex]

x=4.54

Hence if the length of cord is 11.3 and diameter is 15.5 then the value of x is 4.54.

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A geometric series has a sum of 1365. Each item increases by a factor of 4. If there
are 6 terms in the series, find the value of the first term.

Answers

Answer:

1

Step-by-step explanation:

So the sum of a finite geometric series can be defined as: [tex]S_n = \frac{a_1-a1*r^n}{1-r}[/tex] where r is the constant ratio or how much more greater the current term is, compared to the previous term (how much it's being multiplied by), and the n is the number of terms in the series. So with the given information you have the equation:

[tex]1365=\frac{a_1-a_1*4^6}{1-4}[/tex]

Simplify:

[tex]1365=\frac{a_1-4096a_1}{-3}[/tex]

Multiply both sides by -3

[tex]-4095 = a_1-4096a_1[/tex]

Subtract coefficients

[tex]-4095=-4095a_1[/tex]

Divide both sides by -4095

[tex]1 = a_1[/tex]

Type of matter where all of
the atoms that make up the
matter are exactly the same

Answers

Answer:

Pure substance

Step-by-step explanation:

A pure substance is matter that is uniform throughout and has consistent properties

7 of 8
A vase with a circular base exerts a force of 15 N on a table with a pressure of 700 N/m2.
Find the radius of the base of the vase in cm to 2 dp.

Answers

The radius of the base of the vase in cm is 8.26 cm

How to determine the area Force (F) = 15 NPressure (P) = 700 N/m²Area (A) =?

P = F / A

700 = 15 / A

Cross multiply

700 × A = 15

Divide both sides by 700

A = 15 / 700

Multiply by 10000 to express in cm²

A = (15 / 700) × 10000

A = 214.29 cm²

How to determine the radiusArea (A) = 214.29 cm²Pi (π) = 3.14Radius (r) = ?

A = πr²

Divide both side by π

r² = A / π

Take the square root of both sides

r = √(A / π)

r = √(214.29 / 3.14)

r = 8.26 cm

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A washer and a dryer cost 792 combined. The washer costs 92 more than the dryer. What is the cost of the dryer?

Answers

Answer:

divide 792 by 2

792÷2=304

then add 92 to the cost 304

304+92=396

olve the following proportion.
x-1
5
x-1
2
x = [?]
=

Answers

Hello

Answer:

Look at the picture.

The solution to the given proportion (x-1)/5 = (x-1)/2 is equal to x = 1.

To solve the proportion (x-1)/5 = (x-1)/2, we need to find the value of x that satisfies the equation. Cross-multiplication is a common method used to solve proportions.

First, cross-multiply the equation:

2(x - 1) = 5(x - 1)

Now, distribute the values on both sides:

2x - 2 = 5x - 5

Next, isolate the variable x on one side of the equation. Let's move all terms containing x to the left side of the equation by subtracting 2x from both sides:

2x - 2 - 2x = 5x - 5 - 2x

-2 = 3x - 5

Now, let's move the constant term (-5) to the other side of the equation by adding 5 to both sides:

-2 + 5 = 3x - 5 + 5

3 = 3x

Finally, to find the value of x, divide both sides by 3:

3/3 = 3x/3

1 = x

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Abbey Co. sold merchandise to Gomez Co. on account, $29,300, terms 2/15, net 30. The cost of the goods sold is $20,510. Abbey Co. issued a credit memo for $2,500 for merchandise returned that originally cost $1,800. Gomez Co. paid the invoice within the discount period. What is the amount of gross profit earned by Abbey Co. on the above transactions?

Answers

Answer:

The amount of gross profit earned by Abbey Co. on the above transactions is $7,554.00

Step-by-step explanation:

What is the gross profit of Abbey Co?

Note that after sales of goods of $29,300 whose cost is $20,510 to Gomez Co, Gomez returned goods whose selling price is $2,500 and cost originally $1,800 to Abbey Co.

The implication of such goods returned is that $2,500 would be deducted from selling price and $1,800 would be deducted from cost of goods sold.

selling price=$29,300-$2,500

selling price=$26,800.00

cost of goods sold=$20,510-$1,800

cost of goods sold=$18,710.00

Note again that Gomez paid the invoice within the discount period, which means that net sales is the selling price of $26,800.00  minus 2% discount(2/15 means a discount of 2% is available if credit sales is settled in cash within the first 15 days of making sales0

net sales=$26,800.00*(1-2%)

net sales=$26,264.00

The gross profit is net sales minus the cost of goods sold

gross profit= $26,264.00-$18,710.00

gross profit=$7,554.00

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median of 102 116 146 148 148 in feet

Answers

Answer:

146

Step-by-step explanation:

arrange your values in descending order then cancel out last value with the first value.

the middle value would be your answer.

hope it was helpfull.please give me a thanks

What common base can be used to rewrite each side of the equation 2^x+3 -3=5

Answers

Answer:

the answer is 8.ITS 88888888888888888888

The test statistic of z=-3.32 is obtained when testing the claim that p=1/2. a. Using a significance level of a=0.05​, find the critical​ value(s). b. Should we reject H0 or should we fail to reject H0 ​?

Answers

The critical value and the conclusion are mathematically given as

z_{0.05}=1.960 and  z<Zcritical, therefore we Reject H_o

What are the critical value and the conclusion?

a)Test statistic  z=-3.32

Claim: p< 0.5

a=0.05

critical value z_{0.05}

z_{0.05}=1.960

b)

z<Zcritical,

Beause z=-3.32< z_{0.05}=1.960 Reject H_o

In conclusion,

z_{0.05}=1.960 and  z<Zcritical, therefore we Reject H_o

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Please answer this in the attached screenshot

Answers

Based on the calculations, the formula of this sinusoidal function is equal to f(x) = 6cos(2x) + 4.

How to write the formula of this function?

Mathematically, the standard equation of a cosine function is given by:

y = Acos(Bx - C) + D

Where:

A is the amplitude.B = 2π/P.P is the period.C is the phase shift.D is the center line (midline).

For the amplitude, we have:

A = maxline - midline

A = 10 - 4

Amplitude, A = 6.

Since the maxline to the midpoint is euqal to π/4, we have:

¼ × P = π/4

4P = 4π

P = π

For the value of B, we have:

B = 2π/P

B = 2π/π

B = 2.

Since there isn't any phase shift, the value of C is equal to zero (0) and D is equal to 4.

Next, we would substitute the parameters into the cosine function:

y = Acos(Bx - C) + D

y = 6cos(2x - 0) + 4

f(x) = y = 6cos(2x) + 4.

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20. Find the solution to the system of linear equations below:
x - 3y = -5
2x + 5y = 12
O (-5, 12)
O (3,2)
O (-2,7)
O (1,2)

Answers

Answer:

(1, 2)

Step-by-step explanation:

So you can solve this systems of equations by substitution. Substitution involves "finding" the value of one of the variables and then substituting that into the other equation

In this example I'll try to define an equation equal to that of "2x" using the first equation and then substitute that into the second equation

Given:

[tex]x-3y=-5[/tex]

Add 3y to both sides

[tex]x=3y-5[/tex]

Multiply both sides by 2

[tex]2x = 6y-10[/tex]

Given:

[tex]2x+5y=12[/tex]

Substitute 2x as (6y-10)

[tex](6y-10)+5y=12[/tex]

Simplify

[tex]11y-10=12[/tex]

Add 10 to both sides

[tex]11y = 22[/tex]

Divide both sides by 11

[tex]y=2[/tex]

Plug 2 in as y (works for either given equation)

[tex]x-3(2)=-5[/tex]

simplify

[tex]x-6=-5[/tex]

add 6 to both sieds

x=1

 Find the value of x. Round to the nearest tenth. 1.4 2.1 2x

Answers

Step-by-step explanation:

ATTACHED IS THE SOLUTION!!!

The value of x is 1.56ft.

What is the Pythagoras theorem?

The Pythagoras theorem states that the sum of the squares of the base and height is equal to the square of the hypotenuse of the right-angle triangle.

If p is the height, b is the base and h is the hypotenuse then according to the Pythagoras theorem

p²+b²=h²

Here given that the radius of the circle is r=2.1 ft

the perpendicular distance from the center of the circle to the line =1.4ft

that perpendicular line will bisect the line of length 2x.

Foe which each half of the line will be x.

Applying Pythagoras theorem in the right-angle triangle,

1.4²+x²=2.1²

⇒1.96+x²=4.41

⇒x²= 4.41-1.96

⇒x²= 2.45

⇒x= 1.56 ft

Therefore the value of x is 1.56ft.

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which values should you plot to show a linear relationship?

A. "Day" on the x-axis and "number of seeds" on the y-axis.
B. "Day" on the x-axis and "Log(seeds)" on the y-axis.
C. "Number of seeds" on the x-axis and "Log(seeds)" on the y-axis.
D. "Log(seeds)" on the x-axis and "Day" on the y-axis.

Answers

The values that show a linear relationship is "Day" on the x-axis and "number of seeds" on the y-axis.

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

The standard form of a linear equation is given by:

y = mx + b

Where m is the slope of the line and b is the y intercept.

The values that show a linear relationship is "Day" on the x-axis and "number of seeds" on the y-axis.

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Answer: Day on the x-axis and "log(seeds)" on the y-axis

Step-by-step explanation:

8x + 20y = 20
14x + 35y = k
For the above system of equations to be consistent, k must equal

Answers

Answer:

  35

Step-by-step explanation:

The equations will be "consistent" when they describe lines that are not parallel.

Slopes

The slope of a line whose equation is written in this form is the opposite of the ratio of the y-coefficient to the x-coefficient:

  line 1 slope = -8/20 = -2/5

  line 2 slope = -14/35 = -2/5

These lines have the same slope, so will be parallel unless they have the same y-intercept.

Y-intercept

The y-intercept of each line is the ratio of the constant to the y-coefficient:

  line 1 y-intercept = 20/20 = 1

  line 2 y-intercept = k/35

We want these lines to have the same y-intercept so that they are not inconsistent. This requires ...

  k/35 = 1

  k = 35

For the equations to be consistent, we must have k = 35.

__

Additional comment

Linear equations are generally categorized as "consistent" or "inconsistent," and "dependent" or "independent."

Equations are "inconsistent" if there are no values of the variables that satisfy all of the equations. They are "dependent" if they describe exactly the same relation between the variables. "Consistent" equations may be "dependent" (describing the same line, as here), or "independent" (describing lines with different slopes.)

math

look at the picture ​

Answers

Answer:

logarithmic

Step-by-step explanation:

I'm jujust that good to help you

PLEASE HELP I REALLY NEED IT!!!!
Detailed explanation please

Answers

So Explicit formula for 2nd one

2a_{a-1}

Or general formula as per Geometric progression

a_n=ar^{n-1}=1(2)^{n-1}

For 50 years there are 365(50)=18250days excluding leap years (We will check for leap year if neck to neck situation arises)

Now find sum

Sum of 18250 terms

[tex]\\ \rm\Rrightarrow \dfrac{a(r^n-1)}{r-1}[/tex]

[tex]\\ \rm\Rrightarrow \dfrac{1(2^{18250}-1)}{2-1}[/tex]

1 from both denominator and numerator cancels out

[tex]\\ \rm\Rrightarrow 2^{18250}-1[/tex]

[tex]\\ \rm\Rrightarrow 6.272214002E5493[/tex](Accurate)

It's far more than 1 M so second option would give you more penny

Which of the following equations have complex roots?
Please help - trying to get my HS diploma because I did not graduate :(

Answers

Answer:

A

Step-by-step explanation:

Complex roots of quadratic functions occur when the discriminant is negative.

Discriminant

[tex]b^2-4ac\quad\textsf{when}\:\:ax^2+bx+c=0[/tex]

Evaluate the discriminant of each of the given equations.

[tex]\textsf{A.} \quad 3x^2+2=0[/tex]

[tex]\implies a=3, \quad b=0, \quad c=2[/tex]

[tex]\implies b^2-4ac=0^2-4(3)(2)=-24[/tex]

As -24 < 0 the equation will have complex roots.

[tex]\textsf{B.} \quad 2x^2+1=7x[/tex]

[tex]\implies 2x^2-7x+1=0[/tex]

[tex]\implies a=2, \quad b=-7, \quad c=1[/tex]

[tex]\implies b^2-4ac= (-7)^2-4(2)(1)=41[/tex]

As 41 > 0 the equation does not have complex roots.

[tex]\textsf{C.} \quad 3x^2-1=6x[/tex]

[tex]\implies 3x^2-6x-1=0[/tex]

[tex]\implies a=3, \quad b=-6, \quad c=-1[/tex]

[tex]\implies b^2-4ac=(-6)^2-4(3)(-1)=48[/tex]

As 48 > 0 the equation does not have complex roots.

[tex]\textsf{D.} \quad 2x^2-1=5x[/tex]

[tex]\implies 2x^2-5x-1=0[/tex]

[tex]\implies a=2, \quad b=-5, \quad c=-1[/tex]

[tex]\implies b^2-4ac=(-5)^2-4(2)(-1)=33[/tex]

As 33 > 0 the equation does not have complex roots.

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Marcelina uses a blend of white corn and yellow corn to make tortilla chips at her restaurant. She needs to buy 50kg, end text of corn in total for her next order. White corn costs $0.30 per kilogram, yellow corn costs $.015 per kilogram, and she wants to spend 12 dollars total.

CORRECT (SELECTED)

Marcelina spends the intended amount of money and buys the intended amount of corn.

Explanation: Point E is on line a, so it represents a scenario where she spends a 12 dollar sign, Also, point E is on line b, so it represents a scenario where she buys 50kg end text of corn.

Answers

Option A. The answer to the question is Marcelina spends the intended amount of money and buys the intended amount of corn.

How to solve for the intended amount of corn from the graph

We can see a point that takes us to the amount that the corn was bought and the quantity that was obtained.

This shows that she is in range of what she was asked to buy. E shows us the amount that was spent as 12 dollars and the quantity of 50kg.

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Gordon rolls a fair dice 216 times. How many times would Gordon expect to roll a four?

Answers

Answer:

36

Step-by-step explanation:

1/6(216/1)

When a is divided by 7, the remainder is 5; and when b is divided by 7, the remainder is 4. What is the remainder when a + b is divided by 7? When a is divided by 7 , the remainder is 5 ; and when b is divided by 7 , the remainder is 4. What is the remainder when a + b is divided by 7 ? ​

Answers

Answer:

9

Step-by-step explanation:

35(a) / 7 = 5

28(b) / 7 = 4

a + b = 35 + 28

35 + 28 = 63

63 / 7

= 9

Hope that helps! :)

Select the correct answer.
Three corporations each own land. Corporation A owns 3.2 × 105 acres, corporation B owns 4 × 104 acres, and corporation C owns 4.3 × 105 acres. Which corporation owns the most land? How many times greater is corporation A’s land than corporation B’s land?
A
Corporation A owns the most land. Corporation A owns 8 times more land than corporation B.
B.
Corporation B owns the most land. Corporation A owns 4 times more land than corporation B.
C.
Corporation C owns the most land. Corporation A owns 8 times more land than corporation B.
D.
Corporation C owns the most land. Corporation A owns 80 times more land than corporation B.
E.
Corporation A owns the most land. Corporation A owns 40 times more land than corporation B.

Answers

Using scientific notation, the correct statement is given by:

C. Corporation C owns the most land. Corporation A owns 8 times more land than corporation B.

What is scientific notation?

A number in scientific notation is given by:

[tex]a \times 10^b[/tex]

With the base being [tex]a \in [1, 10)[/tex].

Considering the amounts in scientific notation, the standard amounts in acres of each corporation are given as follows:

Corporation A: [tex]3.2 \times 10^5 = 320000 = 320,000[/tex].Corporation B: [tex]4 \times 10^4 = 40000 = 40,000[/tex].Corporation C: [tex]4.3 \times 10^5 = 430000 = 430,000[/tex].

Hence corporation C owns the most land. 320,000/40,000 = 8, hence Corporation A owns 8 times more land than corporation B, and statement C is correct.

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