(3)/(4)[(-15+4)+(6+7)-:(-3)]

Answers

Answer 1

Answer:

The answer is -23/2 or -11.5

Step-by-step explanation:


Related Questions

Find LM tangent angle circle

Answers

Applying the two-tangent theorem, the length of LM is: A. 18.

What is the Two-Tangent Theorem?

The two-tangent theorem states that if two tangents are drawn from a circle to meet at a point outside the circle, then the tangent segments are congruent to each other, that is they have equal lengths.

Segments LK and LM are tangent segments drawn to meet at the external point L. This means, the length of Lk and the length of LM would be equal to each other.

LK = 4x - 2

LM = 3x + 3

LK = LM

Substitute

4x - 2 = 3x + 3

Combine like terms

4x - 3x = 2 + 3

x = 5

LM = 3x + 3

Plug in the value of x

LM = 3(5) + 3

LM = 15 + 3

LM = 18

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You have a tree in your yard that is 60 inches around. What is the diameter of the tree?

Answers

Given : a tree in your yard that is 60 inches around

60 inches represents the circumference of the tree

The circumference =

[tex]\pi\cdot d[/tex]

Where d is the diameter of the tree

so,

[tex]\begin{gathered} \pi\cdot d=60 \\ \\ d=\frac{60}{\pi}\approx19.1 \end{gathered}[/tex]

So, the answer is : the diameter of the tree is a bout 19.1 inches

A golf lesson lasts from 10:00 a.m. – 11:15 a.m. and includes a 15-minute break with equal lengths of time before and after the break. At what time should the break start?

Answers

A golf lesson lasts from 10:00 am - 11:15 am and includes a 15 minutes break with equal lengths of time before and after the break is at 10:30 am.

Total lesson time is 1 hour and 15 minutes (10:00 - 11:15)

There is 15 minutes break with equal lengths of time before and after break.

The lesson before the break is from 10 - 10:30

Therefore , break is at 10:30 am

Lesson resumes at 10:45 when break is over then lesson runs another 30 minutes until 11:15 am (10:45 - 11:15).

Therefore, the break is at 10:30 am in mid of 10:00 am - 11:15 am.

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Use the table to find the products od the two polynomials. Write your answer in descending order l.

Answers

Answer:

To use the given table to find product of the two polynomials.

Given that,

[tex](x^2+x-2)(4x^2-8x)[/tex]

Explanation:

Using the table, we get it as,

we get,

[tex](x^2+x-2)(4x^2-8x)=4x^4-8x^3+4x^3-8x^2-8x^2+16x[/tex][tex]=4x^4-4x^3-16x^2+16[/tex]

we get,

[tex](x^2+x-2)(4x^2-8x)=4x^4-4x^3-16x^2+16[/tex]

Answer is:

[tex](x^2+x-2)(4x^2-8x)=4x^4-4x^3-16x^2+16[/tex]

y=-2/3x+5 and goes through (0, -2)

with steps please

Answers

The equation of the line with coordinate (0, -2) that goes through y = -²/₃x + 5 is; y = -²/₃x - 2

What is the Equation of the Line?

We know that the general formula for an equation of a line in slope intercept form is;

y = mx + c

where;

m is slope

c is y-intercept

Now, from the given equation of y = -²/₃x + 5, we can say that;

Slope; m = -²/₃

y-intercept = 5

Thus, equation of the new line would be;

y - (-2) = -²/₃(x - 0)

y + 2 = -²/₃x

y = -²/₃x - 2

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A group of friends were working on a student film. They spent all their budget on equipment and props. They spent $369 on equipment and 55% of the total budget on props. What was the total budget for their student film

Answers

Answer: t = 820

Step-by-step explanation:

1) Set up the equation

369 + 55%t = t

2) Simplify the percentage

369+ 0.55t = t

3) Minus 0.55 t on both sides

369 = 0.45t

4) Set t by itself.

t = 820

1. If DM = 35, what is the value of r?
DG=r + 3 GM=4r-28

Answers

Answer:

r=32

Step-by-step explanation:

when DM=35

then. 35=r+3

35-3=r

r=32 therefore, substitute into

second equation to solve GM

GM=4r-28

GM=128-28

GM=100

Write three sentences that compare the values 12 and 3 in different ways

Answers

Given data:

The numbers given are 12 and 3.

The 12 and 3 are both positive integers in which 12 is greater than 3.

The 12 and 3 both lie on the right side of the number line in which 12 comes after 3, so 12 is bigger number than 3.

The 12 and 3 are both natural as well as rational number, 12 is nine more than 3.

A price-taking firm makes air conditioners. The market price of one of its new air conditioners is $125. The firms total cost information is given in the table below

Answers

1. Calculating the marginal cost per day yields the following results:

Air conditioners  Total cost    Marginal cost

    per day          ($ per day)      ($ per day)

      1                          100                  100

      2                         150                   50

      3                        220                   70

      4                         310                   90

      5                        405                   95

      6                         510                  105

      7                        650                  140

      8                       800                   150

2. To maximize profits, the price-taking firm should produce 6 air conditioners per day.

What is the profit-maximizing point?

The profit-maximizing point or units is the output and price interaction that ensures that the marginal revenue equals the marginal cost.

The marginal revenue (MR) is the revenue earned from an additional unit. The marginal cost (MC) is the production cost per additional unit.

For price-taking firms, the maximum profit is achieved at the level of output where MC equals MR.

Market Price for one unit = $125

Air conditioners  Total cost    Marginal cost

    per day          ($ per day)      ($ per day)

      1                          100              100 (100 - 0)

      2                         150               50 (150 - 100)

      3                        220               70 (220 - 150)

      4                         310              90 (310 - 220)

      5                        405              95 (405 - 310)

      6                         510            105 (510 - 405)

      7                        650             140 (650 - 510)

      8                       800              150 (800 - 650)

Thus, profit is not maximized where the MC exceeds the MR. Instead producing at that unit reduces profit.

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Question Completion:

Total Cost Information

Air conditioners  Total cost

    per day          ($ per day)

      1                          100

      2                         150

      3                        220

      4                         310

      5                        405

      6                         510

      7                        650

      8                       800

1. Calculate marginal cost per day, and enter your responses as whole numbers.

2. How many air conditioners should the firm produce per day if its goal is to maximize its profit? air conditioners per day.

10^-6/10^-2 this is my question

Answers

Answer:

[tex] \frac{1}{10000} [/tex]

or Decimal

[tex]0.0001[/tex]

Step-by-step explanation:

Greetings !

look at the figure i have attached above

Hope it helps !!

the store bought a bike from the factory for 90$ and sold it to Andre for 117 what percentage was the markup?

Answers

The markup percentage was

[tex]\begin{gathered} P=\frac{117-90}{90}\cdot100 \\ P=\frac{27}{90}\cdot100 \\ P=30 \end{gathered}[/tex]

The markup percentage was 30%.

help me on my hw! I don't understand (answers are already there but mine doesn't match any)

Answers

The answer is d. 82.1

Explanation:

Tan 75 = x/22

The mean Exam score on the SOC 15 Exam 2 is 84.28 with a standard deviation of 6.71Your friend scored an 86 on the exam. What percentage of students scored lower than your friendon the exam?

Answers

First, find the z-score of 86

[tex]\begin{gathered} z=\frac{x-\mu}{\sigma} \\ z=\frac{86-84.28}{6.71} \\ z=\frac{1.72}{6.71} \\ z=0.2563 \end{gathered}[/tex]

Rounding to the nearest hundredth, that is 0.26

Next, find z = 0.26 to the left of z in the z-table and we have the following

Multiply by 100%, and we have

[tex]\begin{gathered} P(z<0.26)=0.60257 \\ \\ 0.60257\cdot100\%=60.257\% \end{gathered}[/tex]

Therefore, the percentage of students who scored lower than 86 is 60.257%.

DUE IN 40 MIN PLEASE HELP

Answers

Answer:

[tex]f(x) = $\begin{cases}3x-4 & -2\le x < 1\\x + 3 & 1 \le x \le 5\\8 & 5 \le x \le 8 \end{cases}$[/tex]

Step-by-step explanation:

The permissible values of x for a function is called the domain of the function. Permissible values mean that the function is real and defined.

The range of a function is the set of all y values for the domain

If a point on a graph is a filled circle, that point is included in the domain(x-value) and represents a ≤ or a ≥ inequality

If a point on a graph is an unfilled or hollow circle, that point is not included in the domain(x-value) and represents a < or a >inequality

Let's look at the three parts of the given piecewise graph

Piecewise part A

We see that the minimum and maximum values of x for this function are x = -2 and x = 1 respectively. The point corresponding to x= 1 is a hollow circle so it is not included in the domain whereas the point corresponding to x = -2 is included

Let's find the equation of this line:
Take 2 points on the line. We choose points (0, -4) and (1, -1)

Slope of this line is -1 -(-4)/(1-0) = (-1 + 4)/1 = 3
The y-intercept is -4

So equation of the line is y = 3x -4  for -2 ≤ x < 1

Proceeding in a similar manner we can determine the domain and function equation for the other two pieces, B and C

Piecewise part B

Domain of x : 1 ≤ x ≤5
Slope = (8-4)/(5-1) = 4/4 = 1

Equation is of the form y = 1x + b
To calculate b, plug in values of x = 1, y = 4 to get
4 = 1(1) + b

b = 3

Equation of this piecewise function is
y = x + 3    for 1 ≤ x ≤ 5

Piecewise Part C

This is a flat horizontal line at y = 8
So that is the equation of the line
The domain of this piece is 5 ≤ x ≤ 8  
So we get y = 8 for [tex]$\begin{cases}3x-4 & -2\le x < 1\\x + 3 & 1 \le x \le 5\\8 & 5 \le x \le 8 \end{cases}$[/tex]

Normally, instead of using y we use f(x)

Putting all this together we get the piecewise function defined as

[tex]f(x) = $\begin{cases}3x-4 & -2\le x < 1\\x + 3 & 1 \le x \le 5\\8 & 5 \le x \le 8 \end{cases}$[/tex]

Can you please also give all forms of the end behavior such as ups/downs, as_,_ , and limits #25

Answers

[tex]f(x)=\frac{x}{2x+1}[/tex]

The given function is a rational function

We will find the zeros of the denominator

[tex]\begin{gathered} 2x+1=0 \\ 2x=-1 \\ x=\frac{-1}{2} \end{gathered}[/tex]

The end behavior of the function will be as follows:

[tex]\begin{gathered} x\rightarrow(-\frac{1}{2})^-;f(x)\rightarrow\infty \\ x\rightarrow(-\frac{1}{2})^+;f(x)\rightarrow-\infty \\ x\rightarrow\infty;f(x)\rightarrow\frac{1}{2} \\ x\rightarrow-\infty;f(x)\rightarrow\frac{1}{2} \end{gathered}[/tex]

The graph of the function is as follows:

A recipe that makes 10 pancakes calls for 13/4 cups of milk. If you want to scale down the recipe so that it makes only 2 pancakes, about how much milk should you use? A. 3/4 cup B. 1/2 cupC. 7/20 cup D. 3/10 cup E. 7/12 cup

Answers

Answer:

13/20 cups

Explanations:

The recipe makes 10 Pancakes with 13/4 cups of milk

The recipe will make 1 pancake with x cups of milk

[tex]\begin{gathered} x\text{ = }\frac{13}{4}\div10 \\ x\text{ = }\frac{13}{4}\times\frac{1}{10} \\ x\text{ = }\frac{13}{40} \\ \end{gathered}[/tex]

The recipe will make 1 pancake with 13/40 cups of milk

The recipe will make 2 pancakes with (2 x 13/40) cups of milk

= 26 / 40

= 13 / 20

The recipe will make 2 pancakes with 13/20 cups of milk

Find the opposite of –15.

Answers

Answer:15

Step-by-step explanation:

Answer:

15

Step-by-step explanation:

If there is a negative sign just add a positive sign or remove the sign. And if it's a positive number add a negative sign.

Easy There we go!

A cone has a volume of 3014.4 cubic inches and a radius of 12 inches.what is the height?

Answers

Answer:

h = 20inches

Explanations:

The formula for calculating the volume of a cone is expressed as:

[tex]V=\frac{1}{3}\pi r^2h[/tex]

where:

r is the radius

h is the height

Given the following

r = 12 inches

V = 3014.4 cubic inches

Substitute to determine the height

[tex]\begin{gathered} 3014.4=\frac{1}{3}\times3.14\times12^2\times h \\ 3014.4\times3=452.16h \\ h=\frac{9043.2}{452.16} \\ h=20inches \end{gathered}[/tex]

Hence the height of the cone will be 20inches

How do I solve this problem?By using the pythagorean identities.

Answers

Given the equation:

[tex]\sin ^2x(\csc ^2x-1)[/tex]

Using the Pythagorean identities

so,

[tex]\csc ^2x-1=\cot ^2x[/tex]

so, the equation will be:

[tex]\begin{gathered} \sin ^2x\cdot\cot ^2x \\ \\ =\sin ^2x\cdot\frac{\cos ^2x}{\sin ^2x} \\ \\ =\cos ^2x \end{gathered}[/tex]

Keisha is making potato casserole for a party. she needs 3/2 of a potato per guest. how many potatoes will she need for 15 guest

Answers

Keisha needs 3/2 of potato per guest ( i.e one guest is equivalent to 3/2 potato)

Thus, for 15 guests

she needs;

[tex]\begin{gathered} 15\text{ }\times\frac{3}{2} \\ \frac{15\times3}{2}=\frac{45}{2} \\ 22\frac{1}{2} \end{gathered}[/tex]

Keisha needs 45/2 potatoes for 15 guests

what is the arc measure of ct in radians? what is the arc length in feet?

Answers

We will determine the arch lenght (In radians) as follows:

*First: We transform the measure of the angle from degrees to radians, that is:

[tex]\theta=80\cdot\frac{\pi}{180}\Rightarrow\theta=\frac{4\pi}{9}[/tex]

*Second: We find the arc length:

[tex]s=r\theta\Rightarrow s=(13.2)(\frac{4\pi}{9})[/tex][tex]\Rightarrow s=\frac{88}{15}\pi[/tex]

So, the arc length for CT is 88pi/15 radians.

*Third: We find its measure in feet:

[tex]s\approx18.43[/tex]

So, the arch length for CT in feet is approximately 18.43 feet.

Hi, can you help me answer this question please, thank you!

Answers

Given that

[tex]\begin{gathered} \mu_d=\mu_2-\mu_1=21.1 \\ s_d=14.9 \\ n=8 \end{gathered}[/tex]

a) The formula for the test statistics for this sample is,

[tex]t=\frac{\mu_d}{s_d\sqrt[]{n}}[/tex]

Therefore,

[tex]\begin{gathered} t=\frac{21.1}{14.9\times\sqrt[]{8}}=0.50067 \\ t=0.50067\approx0.501(3\text{ decimal places)} \\ \therefore t=0.501 \end{gathered}[/tex]

Hence, the test statistic for this sample is

[tex]t=0.501[/tex]

b)

How many positive real zeroes does f(x) = x⁵ - 4x³ + 7x² + 3x - 5 have?

Answers

Given -

f(x) = x⁵ - 4x³ + 7x² + 3x - 5

To Find -

How many positive real zeroes does f(x) have =?

Step-by-Step Explanation -

We have

f(x) = x⁵ - 4x³ + 7x² + 3x - 5

where the signs of coefficients are:

+ - + + -

We can see there are three changes in the sign in f(x).

So, from

Descarte's rule,

there are either 3 0r 1 positive real roots

Now,

f(-x) = -x⁵ + 4x³ + 7x² - 3x - 5

Signs: - + + - -

So, here f(-x) has two sign changes.

From this we can conclude there is at least 1 real root and either 4, 2 or 0 imaginary roots.

Final Answer -

Positive real zeroes f(x) have =

Minimum = 1

Maximum = 3

A line contains points F, G, H, I, J. The space between F G is 2. The space between H and I is 1. The space between F and I is 7.
If FG = 2 units, FI = 7 units, and HI = 1 unit, what is GH?

3 units
4 units
5 units
6 units

Answers

The measure of GH is 4 units.

The correct option is (B)

What is equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side. It demonstrates the equality of the relationship between the expressions printed on the left and right sides. We have LHS = RHS (left hand side = right hand side) in every mathematical equation. To determine the value of an unknown variable that represents an unknown quantity, equations can be solved. A statement is not an equation if it has no "equal to" sign.

Given:

FG = 2 units, FI = 7 units, and HI = 1 unit

Now,

FI = FG+ GH +HI

7= 2 + GH + 1

7= 3 + GH

GH = 7-3

GH = 4 units

Hence, the measure of GH is 4 units.

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6.25 ft7.25 cm11 cm8.921.6 m

Answers

The area of the shaded region can determined by substracting the area of rectangle from the area of triangle,

[tex]\begin{gathered} A=A_r-A_t \\ =14\operatorname{cm}\times25\operatorname{cm}-(\frac{1}{2}\times11\operatorname{cm}\times25) \\ =212.5cm^2 \end{gathered}[/tex]

Thus, the area of the shaded region is 212.5 square centimeters.

Create a data set that has 4 values with a mode of 3, a median of 6, and a meanof 10

Answers

We are to create a data set of 4

that is a, b, c, d

mode means a number that occur the most

Median means the middle number

Mean means the average number

in the set, we must have a mode of 3

3, 3,

to get a median of 6, we need a number when we add to three and divide by 2 will give us 6

the number is 9

3 + 9 / 2

12/ 2 =

3, 3 , 9, d

the last number is d and it is unknown

since means is 10

mean = summation of all the numbers in the data set / the total number

the total number is 4

mean = 10

10 = 3 + 3 + 9 + d / 4

cross multiplication

10 x 4 = 3 + 3 + 9 + d

40 = 6 + 9 + d

40 = 15 + d

isolate d

d = 40 - 15

d = 25

therefore, the data set with a mode of 3, median of 6 and a mean of 10 are

3 , 3 , 9, 25

Please answer correctly and tell me if its linear quadratic or exponential please.

Answers

Answer:

Exponential

Step-by-step explanation:

If the initial difference has the same value, the model will be linear.

If the value of the second difference is the same, the model will be quadratic.

If the difference has been calculated more than five times before duplicate values are discovered, the model might be exponential or involve another unique equation.

Hope this helps!

This table represents what would be an exponential graph.

When graphing these points on a coordinate plane, we will find that it forms a curvy pattern.

When a graph forms a pattern of the points to form a curve, the graph is exponential.

When a graph forms a pattern of the points in resemblance of a “U” shape, the graph is quadratic.

When a graph forms a pattern of the points in resemblance of a straight line, the graph is linear.

For an example of an exponential graph, see the picture attached.

Write the domain and range of g as intervals or unions of intervals

Answers

It's important to know that empty circles refer to open intervals or parenthesis.

In this case, we observe that the first interval of the domain is (-1, 1) and the second interval of the domain is (2, 5), so the whole domain would be the union of these two intervals.

[tex]\text{Domain}=(-1,1)\cup(2,5)[/tex]

To obtain the range, let's observe the y-values. The function goes from y = -5 to y = 3, so the range would be

[tex]Range=(-5,3)[/tex]

Tom invested $2500 a year in a mutual fund for 15 years. If the market value of the fund increases 5% per year, what will be the value of the fund after 15 deposits?

Answers

The value of the mutual fund of Tom after 15 deposits will be $5197.320   .

In the question ,

it is given that , Tom invested $2500 in mutual fund for 15 years ,

So,

the investment amount(P) = $2500 .

time for investment(x) = 15 years

rate of increase(r) = 5% = 0.05

The amount of fund  after 15 deposits can be calculated using the formula

amount = P*(1+r)ˣ

Substituting the values of  P, x and r , we get

amount = 2500*(1 + 0.05)¹⁵

= 2500*(1.05)¹⁵

= 5197.320

Therefore , The value of the mutual fund of Tom after 15 deposits will be $5197.320   .

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4. Find and interpret theaverage rate of change forthe interval. Show your work.1

Answers

Answer:

Average rate of change = -2 celcius / hour

Interpretation: For every unit change in the time (x), there is a change of -2 celcius in the temperature

Explanations:

The average rate of change is to be found for the interval:

[tex]1\text{ }\leq x\leq3[/tex]

From the interval, we can deduce that:

[tex]x_1=1,x_2=3[/tex]

Know the corresponding value of y for each value of x shown above:

[tex]\begin{gathered} \text{When x}_1=1,y_1=\text{ 6} \\ \text{When x}_2=3,y_2=\text{ 0} \end{gathered}[/tex]

The average rate of cgange is given by the formula:

[tex]\begin{gathered} \frac{\delta y}{\delta x}=\text{ }\frac{y_2-y_1}{x_2-x_1} \\ \frac{\delta y}{\delta x}=\text{ }\frac{0-6}{3-1} \\ \frac{\delta y}{\delta x}=\frac{-6}{3} \\ \frac{\delta y}{\delta x}=-2 \end{gathered}[/tex]

The rate of change for the interval is -2 celcius/hour

This can be interpreted as for every unit change in the time (x), there is a change of -2 celcius in the temperature

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