Mathematics High School

## Answers

**Answer 1**

**Answer:**

is C

1/7 • 5/2

have a nice day!

## Related Questions

I JUST DOD THE IMPOSSIBLE AND SOLVED A RUBIX CUBE IN 19 MOVES

### Answers

**Answer: see what you gotta do is/right/left/up/turn left/ down/up/down/down/ right up/ 2nd row turn left/ then do it all over again in you got it**

**Step-by-step explanation: **

**/right/left/up/turn left/ down/up/down/down/ right up/ ALSO CAN I BRAINLIEST IF I HELPED.**

2(4x + 2) = 12

What is the first step?

### Answers

**Answer:**

The first step is to distribute.

**Step-by-step explanation:**

2(4x + 2)= 12

8x + 4 = 12

You distribute the 2 to 4x and 2.

Guided Practice

Determine whether the relation is a function. Explain why or why not.

{(3, 7), (3, 8), (3, –2), (3, 4), (3, 1)}

A.

No; the domain value 3 corresponds to multiple range values.

B.

Yes; there is no value in the domain that corresponds to more than one value of the range.

C.

No; a function must have multiple domain values.

### Answers

**Answer:**

A. it is not a function because there are multiple y-values paired with a single x-value.

**Step-by-step explanation:**

Lisa goes out to eat with her family and spends 42.50. she gives the waiter 15% tip .how much money does she spend in total ?

### Answers

**Answer:**

**Step-by-step explanation:**

1.15×$42.50 = $48.875 ≅ $48.88

**Answer:**

$48.88

**Step-by-step explanation:**

42.50 increase 15% =

42.50 × (1 + 15%) = 42.50 × (1 + 0.15) = 48.875

Four siblings took turns babysitting their young cousin. If they divided the 5 hour shift evenly, how long did each one babysit for? Give the answer in hours and minutes.

### Answers

5 hours divided by 4 siblings so each sibling babysat for 1 hour and 15 minutes

x + 2y < -2

How do I graph this

### Answers

**Answer:**

Put

[tex]x < - 2 - 2y[/tex]

Then put some of value to y and get x then we can graph it

Tom is considering opening a pool cleaning business as a summer job. He wants to determine the percentage of people in his town that own a pool. Which is the best group of people for Tom to survey?

A

150 people who are members of the swim team

B

150 people randomly selected from customers at a local pool supply store

C

150 people randomly selected from the town telephone book

D

150 people who completed and returned a survey by mail

### Answers

**Answer:**

D

**Step-by-step explanation:**

Emily drove 328 miles in 8 hours. If she drove at a constant rate, how far did she

travel each hour?

### Answers

**Answer:**

41 mph (miles per hour)

**Step-by-step explanation:**

please help!! i really need it.

ill give brainilest!!

### Answers

**Answer:**

14

**Step-by-step explanation:**

i think it's 14. i hope i helped :)

Can someone give me the answer I need a A in math

### Answers

The Answer is 8.06

Work:

4 squared + 7 squared = C squared

16 + 49 = C squared

65 = C squared

√65 = √C squared

8.06 = C/length

Can someone help me please thank you!

### Answers

**Answer:**

135

**Step-by-step explanation:**

That's the answer.........

A set of middle school student heights are normally distributed with a mean of 150 centimeters and a

standard deviation of 20 centimeters. Let X = the height of a randomly selected student from this set.

Find P(130 < x < 150).

You may round your answer to two decimal places.

### Answers

Answer:

.34

Step-by-step explanation:

Khan

The required value of **probability **P(130< x < 150) is 0.34.

What is the Z -a score?

A** Z-score** is stated as the **fractional model **of data point to the **mean **using **standard** **deviations**.

here, z = x - μ / σ

where, μ = mean and σ = standard deviation

Here,

From the quesiton put value in z score formula,

z = 130 - 150 / 20

z = -1

P (z < - 1) = P(x<130) = 0.15866

P (x > 130) = 0.84134

Now,

P(130< x < 150) = 0.5 - P(x<130)

P(130< x < 150) = 0.5 - 0.15866 = 0.34134

Thus, the required value of P(130< x < 150) is 0.34.

Learn more about the** z-score **here:

brainly.com/question/13793746

#SPJ5

pLeAsE do this!! In five minutes it's due.

The area of a rectangular garden is 21x²-8x-4. Factor completely to find the dimensions of the box.(So find the length and width.)

### Answers

**Answer:**

It's (7x+2)(3x−2)

**Step-by-step explanation:**

Can you guys help me? please

### Answers

**Answer:**

3 square root 2.

**Step-by-step explanation:**

I think the answer is b (3 square root 2). the Pythagorean therom states that B^2+ B^2= C^2. we know that c squared is 36. 3 square root 2 is approximately 4.24. ( this squared is 17.98). 17.98 + 17.98 = 35.96. If i round this up, it is 36.

Draw graph of straight lines to find approximate solution to these simultaneous equations . y = 3x + 7 and 2y + x = 2

### Answers

Answer:

(-1.714, 1.857)

Step-by-step explanation:

Here, we want to find the approximate solution to the system of linear equations

We start by plotting the graph of the lines

We have the plot as shown below;

the red line represents the first equation while the blue line represents the second equation

We have the solution as the point at which the two lines meet

The solution to this is;

(-1.714, 1.857)

Which of the following expressions are equivalent to 0.7 * -4 * 0.4

### Answers

**Answer:**

0.4

**Step-by-step explanation:**

**Answer:**

A and B

**Step-by-step explanation: Khan**

The area of square ABCD is 144 square units. The area of square EFGH is 64 square units. H∈ AB and G∈ BC . The blue area is three times the red area. Find the area of △HBG.

### Answers

**Answer:**

24

**Step-by-step explanation:**

RSM

What is the image of 6, -7 after dilation by scale factor of 3 centered at the origin￼

### Answers

**Answer:**

(18,−21)

**Step-by-step explanation:**

Dilation: multiply each coordinate

(x,y)\rightarrow (3x,3y)

(x,y)→(3x,3y)

Dilations multiply by scale factor

(\color{red}{6},\color{blue}{-7}) \rightarrow (3\cdot \color{red}{6},3\cdot \color{blue}{-7})=\mathbf{(18,-21)}

(6,−7)→(3⋅6,3⋅−7)=(18,−21)

**Answer:**

18,-21

**Step-by-step explanation:**

I hope this helps

Find how many years it takes for money to triple when invested at an annual interest rate of 4.3% compounded continuously. That’s the entire question and I’m not quite sure what to do?

### Answers

9514 1404 393

**Answer:**

25.5 years

**Step-by-step explanation:**

The multiplier for continuous compounding at annual rate r for t years is ...

e^(rt)

You want the value of t when that is 3 and r=0.043.

3 = e^(0.043t)

ln(3) = 0.043t

t = ln(3)/0.043 ≈ **25.549 . . . . years**

Tacos from the taco truck or 60% off on Tuesdays Erica by the taco for 1.50 on Tuesday she wants to know the regular price of a taco￼￼ quick answer

### Answers

**Answer:**

3.75

**Step-by-step explanation:**

i did the lesson its correct :)

**Answer:**

Regular Price: **100%**

** $3.75**

Sale price: **40%**

** $1.50**

Discount:

**60%**

**$2.25**

Which equation can be used to find the regular price, r, of a taco?

**1.5 = 0.4r**

**Step-by-step explanation:**

**Read the answers correctly, or you might be typing in the wrong answer.**

**Everything is all correct, Thank me later :)**

Which pairs are like terms in the expression below? Select all that apply.

25y + 15x – 0.2y – 6 + (–2)

### Answers

**Answer:**

15x and -0.2y

**Step-by-step explanation:**

Sharon is buying candy. she buys 5 type on the menu if she splits the price equality with four friends how mich do they each pay

### Answers

**Answer:**

D. 0.65

**Step-by-step explanation:**

0.05 x 5=0.25

0.01 x 5=0.05

0.07 x 5=0.35

0.25+0.05+0.35=0.65

they all must pay 0.65 each

**Answer:**

0.65

**Step-by-step explanation:**

Can anyone round the number 277235.2251 for me please. Asap please!!!

### Answers

**Answer:**

**277,235.23**

**Step-by-step explanation:**

**You have to round to the nearest 0.01 or you can call it the Hundredths Place.**

Right triangle XYZ is shown. Y (2,6) (1, 2) 6 х 7 Z Rounded to the nearest hundredth of a unit, what is the length of the hypotenuse?

PLEASE HELP ASK

### Answers

Answer:

8.12

Step-by-step explanation:

We obtain the distance between x and y

d = sqrt[(x2 - x1)² + (y2 - y1)²]

d = sqrt[(1 - 2)² + (2 - 6)²]

d = sqrt[1 + 16)

d = sqrt(17)

d² = 17

From Pythagoras rule;

Hypotenus = sqrt(Adjacent² + opposite²)

Hence,

Hypotenus = sqrt(17 + 7²)

Hypotenus = sqrt(17+ 49)

Hypotenus = sqrt(66)

Hypotenus = 8.124

Hypotenus = 8.12

Given x || y.

∠6 and ∠8 are _________ angles.

complementary

corresponding

supplementary

vertical

### Answers

They are corresponding angles

**Answer:**

angle 6 and angle 8 are vertical angles

**Step-by-step explanation:**

The angles opposite to each other when two lines cross are called vertical angles. In this case, angle 6 and angle 8 are those angles.

You work in the quality assurance department for a bottling company. A water bottle is supposed to contain 750

milliliters (mL) of water, and the company sets a tolerance of +5 mL.

What is the least amount of water that is considered acceptable?

1. 740 mL

2. 745 mL

3. 750 ml

4. 755 mL

5. 760 mL

### Answers

**Answer:**

The answer is 3.

**Step-by-step explanation:**

The company allows an extra 5mL but there is no specified amount for less. if there was it would be ±5mL

PLZ HELP ASAP ASAP!!!!

### Answers

**Answer: Choice A**

==============================================================

Explanation:

The value of k determines the slope, or rate of change, of how fast the balloon is climbing per second.

For example, if k = 5, then that means the balloon is going upward at 5 feet per second (equivalent to roughly 3.41 mph)

If k = 5, then y = kt becomes y = 5t. Note how we have the following

t = 0 leads to y = 0t = 1 leads to y = 5t = 2 leads to y = 10t = 3 leads to y = 15

and so on. Each time t goes up by 1, d goes up by 5. This is one way to see how the speed is 5/1 = 5 ft per second.

Find the area of 2 and 4

### Answers

**Answer:**

2. 254.469

4. 962.11275

Plug the diameter into the equation:

A = (3.14)r^2

r being the radius

**Answer:**

2.) 56.52 inches or 56.55

4.) 109.9 km or 109.96

**Step-by-step explanation:**

diameter x pi = circumference

Please triple check

### Answers

Answer:

Step-by-step explanation:

6 children speak english out of 20 children

P(E)=6/20

P(E)=3/10

P(E)=0.3

can anyone help me? I'm so lost on this question. thanks!!

### Answers

**Answer:**

a. -21

b. -16

c. -11

d. -9

**Step-by-step explanation:**

if x is less than -2, then u have to use the equation 5(x)-1

if x is greater than or equal to -2, then you have to use the equation (x)-9

Answer:

Step-by-step explanation:

This is a ‘piece wise function’ meaning it has different functions depending on the value of the independent variable, x.

So for questions a and b where x<-2 you sub the x value into the top equation, 5x-1.

f(-4)=5(-4)-1=-20-1=-21

f(-3)=5(-3)-1=-15-1=-16

Since the second two x values are not less than -2, you sub the x values into the second equation x-9

f(-2)=-2-9=-11

f(0)=-0-9=-9