Mathematics High School

## Answers

**Answer 1**

**Answer:**

l=9 feet

**Step-by-step explanation:**

area of rectangle=l*w

3=1/3 l

length=9 feet

## Related Questions

200 ones into standard form

### Answers

200 I think that’s it

Find the smallest value of n such that the LCM of n and 15 is 45

### Answers

**Answer:**

n=9

**Step-by-step explanation:**

LCM(n,15)=45

LCM(9,15)=45

Help please math what is the inverse of the function

### Answers

**I hope this helps you **

Oab.......................

### Answers

**Answer:**

ok....…....…...…..…..……..…

**Step-by-step explanation:**

**Answer:**

Bsjxjxoa

**Step-by-step explanation:**

Jskzjakd, own, ks

q(x) = 2x+5

f(x)= x^2+1

find (gof)(7)

### Answers

**Answer:105**

**Step-by-step explanation:**

first find f(7)

(7)^2 + 1

=50

then put the answer for f(7) in g of x

2(50) + 5

=105

F(4)= If g(x)=2,x=.??

### Answers

**Answer:**

**f(4) = -10**

**x = 0**

**Step-by-step explanation:**

From the graph attached,

For x = 4,

Value of the function will be,

f(4) = y value at x = 4

f(4) = -10

Similarly, for y = g(x) = 2,

x value of the function will be,

x = 0

For which g(0) = 2

Therefore, for x = 0 value of the function will be 2.

g(0) = 2

**Answer:**

**f(4) = -10**

**Step-by-step explanation:**

A random sample of adults were asked whether they prefer reading an e-book over a printed book. The survey resulted in a sample proportion of p′=0.14, with a sampling standard deviation of σp′=0.02, who preferred reading an e-book.

### Answers

**Answer:**

**The confidence interval is (0.1008, 0.1792)**

**Step-by-step explanation:**

According to the question, the data provided is as follows

p′=0.14

sampling standard deviation of σp′= 0.02

Based on the above information

The computation of the 95% confidence interval for the true or correct proportion is

Here we apply the z value of 95% confidence interval i.e. 1.96

Now the confidence interval is

[tex]= (pcap - z\times sigma, pcap + z\times sigma)\\\\= (0.14 - 1.96\times 0.02, 0.14 + 1.96\times 0.02)\\\\= (0.1008, 0.1792)[/tex]

What is the value of a in the equation 5 a minus 10 b equals 45, when b equals 3?

### Answers

**Answer:**

15

**Step-by-step explanation:**

5a - 10b = 45

5a - (10×3) = 45

5a - 30 = 45

5a = 45 + 30

5a = 75

a = **15**

The measure of an angle is 149°. What is the measure of its supplementary angle?

### Answers

**Answer: 31°**

**Step-by-step explanation:**

Supplementary angles add up to 180 degrees so add 149 degrees to a number of degrees to get 180 degrees.That can be represent by the equation,

149 + x = 180 where x is the supplement so solve for x

-149 -149

x = 31

originally priced at 48.69, a wallet was found on a 10% off rack. What is the sale price of the wallet

### Answers

Your answer should be 43.821

20. The temperature of a pot of water is 62*F. The temperature increases

by 20*F per minute when being heated. Write an equation to represent

the linear relationship. *

### Answers

**Given :**

The temperature of a pot of water is 62 F .

The temperature increases by 20 F per minute when being heated .

**To Find :**

Write an equation to represent the linear relationship.

**Solution :**

Here , the temperature is increasing directly with the time .

Therefore , it is a linear equation .

Let temperature varies with as :

T = at+b .... equation 1 .

( Here , a and b are constants )

Now , at t= 0 min .

[tex]T = 62 =a\times 0 + b[/tex]

[tex]b=62[/tex]

Now , after 1 min temperature will be , T = 62 +20 =82 F

[tex]T = 82 = a\times 1+62\\a=20[/tex]

Putting value of a ans b in equation 1 , we get :

[tex]T=20t+62\ F[/tex]

Hence , this is the required relation .

Find the midpoint of the line segment joining the two points.

(1.8, -3.4) and (-0.4, 1.4)

### Answers

**Answer:**

(0.7, -1)

**Step-by-step explanation:**

To find the coordinates for the midpoint you add each coordinate together and divide by 2.

M = ([tex]\frac{1.8 - 0.4}{2}, \frac{-3.4 + 1.4}{2}[/tex])

M = [tex](\frac{1.4}{2}, \frac{-2}{2})[/tex]

M = (0.7, -1)

Simplify. Rewrite the expression in the form a^na n a, start superscript, n, end superscript. a^{5}\cdot a^{-3}=a 5 ⋅a −3

### Answers

Answer:

The expression simplified is a^2

Step-by-step explanation:

Here, we are interested in writing the product as a single value.

We have; a^5 • a^-3

This is same as a^5 * a^-3

We proceed here using the first law of indices;

It would result to a^5 * a^-3 = a^(5-3) = a^2

**Answer:**

**Step-by-step explanation:**

Wen says the function is continuous, because the number of people is unlimited. Is Wen right or wrong? Explain.

### Answers

**Answer: Wrong**

Step-by-step explanation:

Continuous means every value is included. Since fractions of people do not exist, it cannot be continuous.

Wen is **wrong. **

It is given that ; according to Wen a **function **is **continuous **because number of **people** are **unlimited. **

We have to **tell** that **whether **Wen is **right **or **wrong ? **

**What is a continuous function ? **

A **continuous function**, is a function whose **graph** is **continuous **without any **breaks **or** jumps.**

We know that ;

A **continuous function** in calculus is **continuous **at a point** x = a** ; if the **curve **of the function **does NOT break** at the point** x = a.**

We can also say that , **continuous **means every **value** is** included. **

Since** fractions** of **people** don't exist, i.e., **unlimited ,** So, it cannot be **continuous.**

**To learn more** about **continuous** **function** click here ;

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Which set of equivalent fractions can be used when adding 7/8 and 5/12 ?

### Answers

**Answer: 84/96 and 40/96**

**Step-by-step explanation: You find a denominator that they both have in common. The LCM is 96 and you get the answer! You multiply 1 side by 8 and the other by 12 and you get the answer!**

The domain of the function f(x)=25/10x-20 is all rea numbers x excpet

### Answers

**Step-by-step explanation:**

f(x) = 25 / (10x -20)

When 10x - 20 = 0, f(x) is undefined. Therefore x = 2 is not in the domain for f(x) to be a function.

Answer = 2.

Mr. Green's lawn mower holds 600 milliliters of gasoline in the tank. He just filled his 6 liter gas can at the station. How many times will he be able to fill his lawn mower tank from the gas can?

### Answers

**Answer:**

10 times.

**Step-by-step explanation:**

Since 1 liter = 1000 milliliters, we can say that 600 milliliters is equal to 0.6 liters because 600/1000 = 0.6

Since the gas can holds 6 liters, and the lawn mower holds 0.6 liters, 6/0.6 = 10.

So, he can fill his lawn mower 10 times with the gas can

**Mr Green **can fill his lawn **10 times**

the first step is to convert the** milliliters to liters**

**600 milliliters to liters**

= 600/1000

=** 0.6 liters**

the **number of times** can be calculated as follows

= 6/0.6

= 10

hence it will take **Mr. Green** **10 times** to fill his lawn mower

please see the link below for more information

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The manager of a factory collected data in order to analyze the relationship

between the number of hours of training a worker receives and

the worker's error rate. The line of best fit for the collected data is y = 0.1 -0.005x, where x is the number of hours of training a worker

receives and y is the error rate.

What approximate error rate should the manager expect for a worker who receives 6 hours of training?

O A. 0.01

OB. 0.07

OC. 0.13

OD. 0.17

### Answers

**Answer:**

B. 0.07

**Step-by-step explanation:**

You can use the "Desmos Graphing Calculator". It helps a lot.

Answer:

B

Step-by-step explanation:

Combine the like terms to create an equivalent expression:

-49 - (-89) + 10

### Answers

**Answer:**

60

**Step-by-step explanation:**

If it takes 10 seconds to hear thunder when lightning is 4 miles away, determine how far away the lightning is when it takes 6 seconds to hear the thunder. miles

### Answers

**Answer:**

2.4 miles.

**Step-by-step explanation:**

10sec = 4 miles.......what abt.....

6 sec = ??

cross multiply:

6sec × 4miles ÷ 10 sec= 2.4miles

The circumference of a quarter is approximately 7.54 mm. What is its diameter to the nearest tenth of a millimeter? (π = 3.14)

### Answers

**Answer:**

2.40mm

**Step-by-step explanation:**

In this problem. we are required to solve for the diameter of a circle.

Given data

circumference of circle c= 7.54mm

we know that the expression for the circumference is given as

c= 2πr

We can substitute our given data to solve for r

7.54= 2*3.142*r

7.54=6.284*r

divide both sides by 6.284 we have

r= 7.54/6.284

r= 1.199

diameter = 2*r

diameter= 1.199*2

diameter= 2.399

to the nearest tenth

diameter= 2.40mm

-10(-v + 6w) -w - 9(-3w - v)

### Answers

**Step-by-step explanation:**

-10(-v + 6w) -w - 9(-3w - v)

= 10v - 60w - w + 27w + 9v

=19v - 34w

*Hope** **this helps**.**.** **Good** **luck** **:**)** *

HELP ME ASAP

Select the correct answer. What is the solution to the equation 4x - 8 = -8? A x = 0 B. No solutions exist. OC. OD X = -4 or x = 4

### Answers

**Answer:**

the answer is A

**Step-by-step explanation:**

because if you listen in math class you will understand why-

**Answer:**

A: **x = 0**

**Step-by-step explanation:**

- Suppose Q is the midpoint of PR. Use the information to find the missing value. PQ = 3x + 14 and QR = 7x - 10; Find x.

### Answers

**Answer:**

x =6

**Step-by-step explanation: Q is the midpoint of PR. **

Therefore PQ = QR

3 x + 14 = 7 x -10

-14 -14

3 x = 7 x-24

-7x -7x

-4x = -24 Divide both sides by -4

x = 6

The value of **x** for **PQ = 3x + 14** and **QR = 7x - 10** is 6 units.

**What is midpoint of line segment?**

The **midpoint **divides the line segment into two equal parts.

It is given that Q is the **midpoint **of PR which implies Q will divide PQ into two equal parts that is PQ (3x+14) equals QR (7x-10). now calculating x value :

[tex]\begin{aligned}PQ&=QR\\3x+14&=7x-10\\7x-3x&=14+10\\4x&=24\\x&=6\end{aligned}[/tex]

Therefore, the value of **x** for **PQ = 3x + 14** and **QR = 7x - 10** is 6 units.

Read more about **intersection **at:

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What is the measurement of this angle

### Answers

**Answer:**

Acute, 40 degree angle

**Step-by-step explanation:**

Take 90 - 50 and you get 40

I hope this helps you :)

*-KeairaDickson*

**Answer:**

40°

**Step-by-step explanation:**

Count how many 10s it takes to get from 90 degrees to 50 and you get your answer...

5 3/4

i don't know how to solve this

### Answers

**Answer:**

it would be 5.75

Hope this helps! :)

(make brainliest if it helped!!)

5.75 I hope this helps you

You found hardwood flooring priced by the square foot. To find the price per square yard, you should do which of the following.

a.) Divide the price per square foot by 9

b.) Multiply the price per square foot by 3

c.) Multiply the price per square foot by 9

d.) Divide the price per square foot by 3

### Answers

Answer:

D. Divide the price per square foot by 3

Step-by-step explanation:

1 foot = 0.333333 yard

price per square yard of the hardwood = price per square foot / 3

For instance, If the price per square foot is $900, then the price per square yard is

price per square yard of the hardwood = price per square foot / 3

= 900 / 3

= 300

price per square yard of the hardwood = $300

what is the value of the product {3-2i][3+2i}

### Answers

(3-2i)(3+2i)

=9+6i-6i-4i^2

i^2=-1

=9-4(-1)

=9+4

=13

Hope this can help.

**Answer:**

13

**Step-by-step explanation:**

Step 1: Write out expression

(3 - 2i)(3 + 2i)

Step 2: FOIL

F - 9

O - 6i

I - -6i

L - -4i²

Step 3: Combine

9 + 6i - 6i - 4i²

Step 4: Combine like terms

9 - 4i²

Step 5: Simplify

i² = -1

9 - 4(-1)

9 + 4

13

what is the additive of p when p = -19.57

### Answers

The additive inverse of a number is just the opposite of the given number. For example; 2 and the additive inverse is -2.

If we apply this to the number we are given, we get 19.57

Best of Luck!

Which of the following measures of central tendency are resistant to outliers? (May be more than one correct answer) Group of answer choices Median Mode Mean Range Inter-quartile Range (IQR) Standard Deviation

### Answers

**Answer**

**Median **

**Step-by-step explanation:**

It should be noted that **medians **are resistant to **outliers.**

**Outliers** simply means the data records which are different from every other record. It escapes normality. The** outlier** affects mean,** inter-quartile range, mode** and the** range.**

It should be noted that the **median** isn't affected by** outliers.** The reason for this is that the median depends on the arrangement and the order of the data. For example, when one changes the** lowest score** in a given set of numbers, the order won't be affected.

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