I need the answers can u help me please

three angles= 180

180/3

60

Answer:

1

Step-by-step explanation:

Start at any point on the line, for example (0, 1).

Each unit up correspond to a unit right. The next easy to read point going up to the right is (1, 2).

difference in y: 2 - 1 = 1

difference in x: 1 - 0 = 1

gradient = (difference in y)/(difference in x) = 1/1 = 1

Answer:

[tex]\huge\boxed{\sf Slope = 1 }[/tex]

Step-by-step explanation:

Take any two co-ordinates from the line.

I will take (0,1) and (-1,0)

So,

[tex](x_1,y_1)=(0,1)\\\\(x_2,y_2)=(-1,0)[/tex]

[tex]\displaystyle Slope = \frac{y_2-y_1}{x_2-x_1} \\\\Slope = \frac{0-1}{-1-0} \\\\Slope = \frac{-1}{-1} \\\\Slope = 1 \\\\\rule[225]{225}{2}[/tex]

Answer:

2700 - 2000 = 700 - 100 = 600 - 200 = 400 - 100 = 300

300 dollars

Answer: $768

Step-by-step explanation:

Here, you'll just multiply:

16x8x6 = 768

The number of baskets that were sold for $2 is 299 baskets.

A word problem is a method we used in denoting mathematical expressions and variables and it can be solved with the use of fractions, ratios, algebra, and arithmetic operations as the case may be.

From the given information:

The number of baskets sold in the second week is obtained as follows

i.e.

x = (184 × 3.25)/2

x = 299 basket were sold for $2  

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By applying the quadratic formula and discriminant of the quadratic formula, we find that the maximum height of the ball is equal to 75.926 meters.

Herein we have a quadratic equation that models the height of a ball in time and the maximum height represents the vertex of the parabola, hence we must use the quadratic formula for the following expression:

- 4.8 · t² + 19.9 · t + (55.3 - h) = 0

The height of the ball is a maximum when the discriminant is equal to zero:

19.9² - 4 · (- 4.8) · (55.3 - h) = 0

396.01 + 19.2 · (55.3 - h) = 0

19.2 · (55.3 - h) = -396.01

55.3 - h = -20.626

h = 55.3 + 20.626

h = 75.926 m

By applying the quadratic formula and discriminant of the quadratic formula, we find that the maximum height of the ball is equal to 75.926 meters.

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Answer:

C. 92.16π mi²

Step-by-step explanation:

Use the formula: 4 · π · r²

r=4.8

4 · π · 4.8²=

=4 · π · 23.04=

=92.16π mi²

Hope this helps!

If not, I am sorry.

Using it's concept, it is found that the percentage of the students that do NOT like to travel out of state that like camping is:

B. 34%.

The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:

[tex]P = \frac{a}{b} \times 100\%[/tex]

In this problem, there are 112 students that do not like traveling out of the state, and of those, 38 like camping, hence the percentage is:

[tex]P = \frac{38}{112} \times 100\% = 34\%[/tex]

Hence option B is correct.

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The inverse of the matrix  [tex]\left[\begin{array}{cc}11&-5\\3&-1\end{array}\right][/tex] is the matrix [tex]\left[\begin{array}{cc}\frac{-1}{4} &\frac{5}{4} \\\\\frac{-3}{4} &\frac{11}{4} \end{array}\right][/tex] .

The inverse of a matrix A is calculated by the formula:

A' = (1/|A|)(Adj A),

where A' represents the inverse of matrix A,

|A| represents the determinant value of matrix A, and

Adj A represents the Adjoin matrix of matrix A.

So, to calculate the inverse of the matrix  [tex]\left[\begin{array}{cc}11&-5\\3&-1\end{array}\right][/tex] , we will first calculate its Adj.

Adj = [tex]\left[\begin{array}{cc}-1&-3\\5&11\end{array}\right] ^{T}[/tex]= [tex]\left[\begin{array}{cc}-1&5\\-3&11\end{array}\right][/tex].

Now, we calculate |A| = 11*(-1) - (-5)*3 = -11 + 15 = 4.

Therefore A' = (1/|A|)(Adj A),

or, A' = [tex](1/4)*\left[\begin{array}{cc}-1&5\\-3&11\end{array}\right][/tex] ,

or, A' = [tex]\left[\begin{array}{cc}\frac{-1}{4} &\frac{5}{4} \\\\\frac{-3}{4} &\frac{11}{4} \end{array}\right][/tex] .

Therefore, the inverse of the matrix  [tex]\left[\begin{array}{cc}11&-5\\3&-1\end{array}\right][/tex] is the matrix [tex]\left[\begin{array}{cc}\frac{-1}{4} &\frac{5}{4} \\\\\frac{-3}{4} &\frac{11}{4} \end{array}\right][/tex] .

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Answer:

47 - 2n

Step-by-step explanation:

An algebraic expression is an idea of representing numbers using letters or alphabet.

From the question above,

The variable = n

twice the number = 2× n = 2n

Translating:

47 - 2n

Hello and Good Morning/Afternoon:

Let's take this problem step-by-step:

Let's write in the point-slope form:

 [tex](y-y_0)=m(x-x_0)[/tex]

Let's find the slope:

 [tex]Slope=\frac{y_2-y_1}{x_2-x_1}[/tex]

        ⇒ [tex]Slope=\frac{8--1}{4-1}=\frac{9}{3}=3[/tex]

Let's gather what we know:

   Equation: [tex](y-y_0)=m(x-x_0)\\y+1=3(x-1)[/tex]

The equation could also be written in slope-intercept form:

 ⇒ simply isolate y on one side

  [tex]y+1=3(x-1)\\y=3x-3-1\\y=3x-4[/tex]

Answer:

  *Either answer works, just put the one that you are most familiar with

Hope that helps!

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Answer: y=3x-4

Step-by-step explanation:

Slope formula = ([tex]y_{1}[/tex] - [tex]y_2[/tex])/([tex]x_1 - x_2[/tex])

(-1-8)/(1-4) = (-9)/(-3) = 3

Slope = 3

Slope intercept formula = y=mx+b

m = slope = 3

y=3x+b

We can plug in x and y to find b

8=3(4)+b

8=12+b then subtract 12 from both sides

-4=b

Now we put it in

y=3x-4

The quotient of [tex]x^{4} +5x^{3} -3x-15[/tex] and [tex]x^{3} -3[/tex] is (x+5).

Given expression  [tex]x^{4} +5x^{3} -3x-15[/tex] and [tex]x^{3}-3[/tex] and we have to find the quotient of the first expression.

Quotient is any quantity produced by dividing two numbers. It can be of simple numbers or expressions also. Remainder is a number or expression that is left after division.

To find the quotient of [tex]x^{4}+5x^{3} -3x-15[/tex], we have to divide the expression by [tex]x^{3}-3[/tex].

We know that,

Divident=Divisor*quotient+remainder

[tex]x^{4}+5x^{3}-3x-15[/tex]=([tex]x^{3}-3[/tex])*(x+5)+0

By equating from the given formula we can find that the value of quotient is  (x+5).

Hence the quotient of [tex]x^{2} +5x^{3} -3x-15[/tex] by dividing it by [tex]x^{3} -3[/tex] is (x+5).

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Question is incomplete as the expressions are incomplete. They should be like [tex]x^{4} +5x^{3} -3x-15[/tex] and [tex]x^{3} -3[/tex]

Answer:

9:12 10:24

Step-by-step explanation:

First find their least common divisor which is 36. which means every 36 minutes they will flashes together.

just add the 36 to the time where they flash at the same time which is 8:00am

8:36 9:12 9:48 10:24 11:00 11:36

Answer: 9:12 and 10:24

Step-by-step explanation:

if we start from 8 am and add 12 minutes for light A in intervals and do the same for Light B we can see where the times are the same

Light A: 8:00, 8:12, 8:24, 8:36, 8:48, 9:00, 9:12, 9:24, 9:36, 9:48, 10:00, 10:12, 10:24, 10:36, 10:48, 11:00, 11:12, 11:24

Light B: 8:00, 8:18, 8:36, 8:54, 9:12, 9:30, 9:48, 10:06, 10:24, 10:42, 11:00, 11:18

9:12 and 10:24 are the correct answers because this is when the two lights flash at the same time

Hello,

[tex]( \frac{2}{3} ) {}^{n} = \frac{16}{81} [/tex]

[tex]nln( \frac{2}{3} ) = ln(\frac{16}{81})[/tex]

[tex]n = \frac{ln( \frac{16}{81} )}{ln( \frac{2}{3} )} = 4 [/tex]

Answer : 4

Answer:

^ is 4

Step-by-step explanation:

as you can see, [tex]\frac{16}{81}=\frac{2^4}{3^4}=(\frac{2}{3})^4[/tex]

The probability that the sample proportion of Republicans will differ from the population proportion by greater than 5% is 100%

Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates the impossibility of the event and 1 indicates certainty.

It is given that 58% of voters are Republican. The sample is 536 voters.

0.58×536 = 310.88 can be rounded off to 311.

536 - 311 = 225 are not republicans

311-225 = 86 is the difference

[tex]\frac{86}{536}[/tex]×100 = 16.044%

Hence, the probability is 100%.

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Recall the Pythagorean identity.

[tex]\sin^2(x) + \cos^2(x) = 1 \implies \left\langle \begin{matrix} \tan^2(x) + 1 = \sec^2(x) \\ 1 + \cot^2(x) = \csc^2(x) \end{matrix} \right.[/tex]

[tex]\implies \sec^2(\beta) - \csc^2(\beta) = (\tan^2(\beta) + 1) - (1 + \cot^2(\beta)) \\\\ ~~~~~~~~= \tan^2(\beta) - \cot^2(\beta)[/tex]

Recall the difference of squares identity.

[tex]a^2 - b^2 = (a - b) (a + b)[/tex]

[tex]\implies \sec^2(\beta) - \csc^2(\beta) = (\tan(\beta) - \cot(\beta)) (\tan(\beta) + \cot(\beta))[/tex]

[tex]sec^2\beta -csc^2\beta \\(1+tan^2\beta )-(1+cot^2\beta )\\1+tan^2\beta -1-cot^2\beta \\tan^2\beta -cot^2\beta \\(tan\beta -cot\beta )(tan\beta +cot\beta )[/tex]

The simplest form of  (–11.7y – 3.3x) + 1.2x + (5.2y + x) is -6.5y - 1.1x

(–11.7y – 3.3x) + 1.2x + (5.2y + x)

We have to open the brackets.

Therefore,

(–11.7y – 3.3x) + 1.2x + (5.2y + x)

-11.7y - 3.3x + 1.2x + 5.2y + x

combine like terms

Hence,

-11.7y + 5.2y - 3.3x + 1.2x + x

Therefore,

-6.5y - 1.1x

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Answer:   -6.5y - 1.1x

Step-by-step explanation:

Answer:

I believe the answer should be -11/20

Step-by-step explanation:

Answer:

x = 14 1/2 or 14.5

Step-by-step explanation:

(4x-3)/5 - (2x-3)/2 = -2

make denominators match

2*(4x-3)/10 - 5*(2x-3)/10 = -2

(8x-6)/10 - (10x-15)/10 = -2

(8x-6-10x+15)/10 = -2

(-2x+9) = -2*10

-2x+9 = -20

-2x = -29

x = -29/-2

x = 14 1/2 or 14.5

gathmath

Answer:

  27 = 3³

Step-by-step explanation:

The prime factorization of 27 is ...

  27 = 3×3×3 = 3³

The exponent of 3 signifies the factor is repeated 3 times.

Multiplying the binomials, we have (x - 7)(x - 2) = x² - 9x + 14.

Applying the distribution property of multiplication, the given binomials, (x - 7)(x - 2) can be multiplied as shown below:

(x - 7)(x - 2)

x(x - 2) -7(x - 2)

x² - 2x - 7x + 14

x² - 9x + 14

Therefore, (x - 7)(x - 2) = x² - 9x + 14.

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Answer:

Hence the expression [tex]$$(x-7)(x-2)=x^2-9x-14$$[/tex]

Step-by-step explanation:

The given expression is (x-7)(x-2).

We have to multiply the given expression.

Multiply the (x-7) by-2, multiply the (x-7) by x then add like terms.

[tex]$$\frac{\begin{matrix}{} & {} & x & - & 7 \\ \times & {} & x & - & 2 \\ \end{matrix}}[/tex]

____________

[tex]{\frac{\begin{matrix}{} & - & 2x & - & 14 \\ {{x}^2} & - & 7x & {} & {} \\ \end{matrix}}{\begin{matrix}{{x}^2} & - & 9x & - & 14 \\ \end{matrix}}}$$[/tex]

The correct definition of dependent events is two events are dependent if the outcome of the first event affects the outcome of the second event.

Two events are dependent if the outcome of one of the event depends on the outcome of the first event.  An example of a dependent event is if it rains, the floor would be wet.

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Rachel should perform better because of the spacing effect.

Given,

Rachel will study one hour each day for 5 days and Jennifer will study 5 hours the day before the exam.

What do you predict about their scores?  

Rachel should perform better because of the spacing effect.

The spacing effect demonstrates that learning is more effective when study sessions are spaced out. This effect shows that more information is encoded into long-term memory by spaced study sessions, also known as spaced repetition or spaced presentation, than by massed presentation.

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Answer:

A ≈ 1194.5

The total surface area is 1194.53.

a = 24

b = 30

c = 7

h = 18

The different sets of initials can be formed if every person has one surname (i.e., last name) and either one or two given names (i.e., a first name, or a first and middle name) is 15600.

There are 26 possible letters, each set of initials would have 3 letters in it, order doesn't matter, i.e. ABC does not equal ACB. using permutation   26P3 = 5600.

A permutation is a mathematical technique that determines the number of possible arrangements in a set when the order of the arrangements matters. Common mathematical problems involve choosing only several items from a set of items in a certain order.

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Answer: The three triangles shown are similar triangles. We can tell this by the Angle Angle theory. You can tell the angles are congruent by the matching marks in each corner of the triangles, the marks or “ticks” are the same in the same corners. The length of the sides can change but the angle measurements will still be the same.

Step-by-step explanation: explained in answer

Answer: Each of the corresponding angles of one triangle equal the corresponding angles of the other triangle.

Answer:

0

Step-by-step explanation:

㏒₇1 = 0 and ㏒₅25 = 2, so the expression evaluates to 0.

Answer:

Starting a business can be a daunting task, but with a little algebra and some careful planning, it can be a successful endeavor. Algebra can help you determine how much start-up capital you will need, as well as how to price your products or services. It can also help you track your expenses and calculate your profits. Without these tools, it would be difficult to know if your business is viable or if you are making a profit.