Mathematics High School

Check all that apply
X^2+7x-8

Answers

Answer 1

Answer:

x = -8, 1.

Step-by-step explanation:

x^2 + 7x - 8 = 0

(x + 8)(x - 1) = 0

x = -8, 1.

Answer 2

Answer:

-8 and 1

Step-by-step explanation:

Quadratic expression.

A quadratic expression is an expression with 2 as the highest power of the unknown.

Solving the question:

[tex]x {}^{2} + 7x - 8 \\ x {}^{2} + 8x - x - 8 \\ x(x + 8) - 1(x + 8) \\ (x - 1)(x + 8) \\ x = 1 \: or \: x = - 8[/tex]

Related Questions

What are the zeros of f(x) = x2 - x - 30?
O A. x = 10 and x = -3
O B. x = 6 and x = -5
O C. x= -10 and x = 3
O D. x= -6 and x = 5

Answers

Answer:

B

Step-by-step explanation:

the x intercepts of this graph are -5 and 6

Finding a percentage of o total amount without a calculator...
An item is regularly priced at $35. It is on sale for 40% off the regular price. How much (In dollars) Is discounted from the regular price?
Amount discounted: si
х
5
?
Help

Answers

35 - 0.80*35 = x

35 - 28 = x

7 = x

x = 7

He paid $7

I need help pleaseee):

Answers

Answer:

Step-by-step explanation:

A recipe for cake calls for 3/4 cup of sugar and 2 cups of flour.

Write an equation to represent the relationship between s, sugar, and f, flour.

Answers

Answer:

32 tablespoons of sugar.

Step-by-step explanation:

Answer:

32 tablespoons of sugar.

Step-by-step explanation:

If you place a 13 foot ladder against the top of a 12 foot building, how many feet will the bottom of the ladder be from the bottom of the building?

Answers

Did this a while ago but I’m pretty sure it’s 5 feet x=5

V(x) is a function.

True or false??

Answers

Answer:

TRUE                                         AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA                          

Each unit on the grid represents 5
feet. About how far, in feet, is the
drinking fountain from
the bench?
A. 8.5 feet
B. 37.1 feet
C. 33.5 feet
D. 42.7 feet

Answers

Answer:

There's no grid but I'd say A if you can give me the grid I'll edit my answer

Step-by-step explanation:

Sarah has $1000 in the bank. she took out $50 to buy supplies. What percentage of savings did she take out?

Answers

She took out 5%, 10$ is 1% so that would make 50 5%

just need to know the fraction

Answers

Answer:  1/2

The midsegment is always exactly half as long compared to the side it's parallel to.

Put another way, the longer side (4x+20) is twice long as the midsegment (3x).

Answer:

The answer your looking for is 1/2

Step-by-step explanation:

What property is -2x–6+4=-2? (see image)

Answers

x = 0 pretty sure that’s the answer

Mae Ling earns a weekly salary of $345 plus a 7.0% commission on sales at a gift shop. How much would she make in a work week If she stood $4,300 worth of merchandise?

She would make $________​?

Answers

Answer:

She would make $646.00

An olive farmer has 7,426 olives to put into jars. It takes 47 olives to fill each jar. How many jars will the farmer be able to fill with olives?

Answers

Answer:

Step-by-step explanation:

divide 7,426 by 47 on a calculator, that’s the answer of how many jars you’ll need

I don't know this question. I REALLY NEED HELP!!!

Answers

Answer:

If it is asking what the answer is when you plug in 5 and 4 to the equation, it would be 54

Answer:

54

Step-by-step explanation:

10m + [tex]\frac{n^{2} }{4}[/tex]

First insert the m value and then multiply

10m = 10(5) =50

then the equation becomes 50 +  [tex]\frac{n^{2} }{4}[/tex]  

Second insert the n value

[tex]\frac{4^{2} }{4}[/tex]

4 to the second power = 16 so it becomes 16 over 4 aka 4 wholes

50+16/4

50+4=54

is 250% of 41 less than 100, greater than 100 but less than 150, or greater than 150?

Answers

It is 750 your welcome

Which of the following represents the solution set to 4x^2+8x-1=0?

Answers

Answer:

4

Step-by-step explanation:

If a varies directly as the cube root of b and if a=3 and b=64.find the formula connecting the variables hence find b when a=15/4

Answers

Answer:

b = 125

Step-by-step explanation:

Given a varies directly as [tex]\sqrt[3]{b}[/tex] then the equation relating them is

a = k[tex]\sqrt[3]{b}[/tex] ← k is the constant of variation

To find k use the condition a = 3 , b = 64 , then

3 = k[tex]\sqrt[3]{64}[/tex] = 4k ( divide both sides by 4 )

[tex]\frac{3}{4}[/tex] = k

a = [tex]\frac{3}{4}[/tex] [tex]\sqrt[3]{b}[/tex] ← equation of variation

When a = [tex]\frac{15}{4}[/tex] , then

[tex]\frac{15}{4}[/tex] = [tex]\frac{3}{4}[/tex] [tex]\sqrt[3]{b}[/tex] ( multiply both sides by 4 to clear the fractions )

15 = 3[tex]\sqrt[3]{b}[/tex] ( divide both sides by 3 )

5 = [tex]\sqrt[3]{b}[/tex] , then

b = 5³ = 125

11. Justin needs to rent a car to go on vacation. EnvoCar charges $65 and $0.10 per mile. FreedomRide charges $80 and $0.05 per mile.
_________________________
a. How much more does Freedom Ride charge for driving m miles than EnvoCar?
_________________________
b. If Justin’s round-trip distance is 250 miles, which car rental company should he rent from? Explain.

Answers

9514 1404 393

Answer:

  a) difference of charges is 15 -0.05m

  b) Justin should rent from EnvoCar

Step-by-step explanation:

a) EnvoCar charges ...

  c = 65 +0.10m . . . . . c = charge for m miles

FreedomRide charges ...

  c = 80 +0.05m

Then FreedomRide charges more by ...

  (80 +0.05m) -(65 +0.10m) = 15 -0.05m

__

b) If Justin's round-trip distance is 250 miles, the extra charge from FreedomRide is ...

  15 -0.05(250) = 2.50

For that distance, EnvoCar costs less. Justin should rent from EnvoCar.

_____

Additional comment

The additional charge from FreedomRide is zero when m=300. Above that mileage, FreedomRide charges less.

El alcance de tangente

Answers

Answer: ¿Qué significa alcance tangente? ¡Lo busqué y no dice nada!

Step-by-step explanation:

When a number is increased by 9.5%, the result is 58. What is the original number to the nearest tenth?

(I've seen other questions like this, but the answer is wrong. It's not 50 or 52.49 or 52.5.)

Answers

Answer:

53

Step-by-step explanation:

58÷1.095= 53 is the answer

Answer:

5.03196347032

Step-by-step explanation:

We do:

.095x+x=58

1.095x=58

x=52.96

52.96 is a approximation and when you do the math and see what  9.5 of 52.96 plus 52.96 is you get 57.9912 which is super close to 8 The exact answer is x = 5.03196347032

How do I make the pain go away?

Answers

What-.....?Uhh u good?

What is the volume of the prism given below?
14
12
A. 280 units3
B. 480 units 3
C. 840 units 3
D. 420 units3

Answers

AnswerAnswer:

420

Step-by-step explanation:

The volume of the prism is 840 units³ which is correct option (C).

What is volume of prism?

The volume of the prism is defined as the measure of the space occupied within a prism . The prism is a three-dimensional shape that has base area, and height. The volume of a prism is equal to the product of base area and height of a prism.

The volume of the prism= B×H

Where, B is base area of prism, and H is height of prism.

Given that,

Length of  prism (L) = 12 centimeters

Width of prism(W) = 14 centimeters

Base area (rectangle) of prism = L × W

Base area (rectangle) of prism = 12 × 14

Base area (rectangle) of prism = 168 units²

Height of prism(H) = 5 units

The volume of the  prism =  B × H

Substitute the values in above formula,

The volume of the prism = 168×5

The volume of the prism = 840 units³

Hence, the volume of the prism is 840 units³.

Learn more about volume of the prism here:

https://brainly.com/question/11336446

#SPJ5

Will mark brainliest for whoever answers

Answers

Answer:

i think g(x) is not the inverse function of f(x). HOPE THIS HELPS!

Step-by-step explanation:

What is the exact value of tan(−π/4)?

Answers

Answer:

-1

Step-by-step explanation:

Can you all help? Giving brainliest to whoever can help me!

Answers

Answer:

x=11

Step-by-step explanation:

15x+15=180      they are supplementary angles to each other so their sum is

                        equal to 180 degrees.

subtract 15 from both sides

15x=165

divide each side by 15

x=11

Given: EGEF = JK

Prove: FG = HJ

PLEASE HELP ASP

Answers

Answer:

Done.

Step-by-step explanation:

EG = EF + FG

HK = HJ + JK

We have: EG = HK and EF = JK => FG = HJ


1. The number of customers in a restaurant during the peak hour of each day for a month varied
significantly from day to day. Here are pieces of the data on the number of customers served
during the peak hour of each business day:
3 Lowest
25, 32, 37
Q1
45
Mean
48
Median
50
Q3
58
3 highest
69, 70, 75
(a) Are there any outliers in the data set? Justify your answer numerically

Answers

Step-by-step explanation:

First we must calculate the interquartile range (IQR), using this equation:

[tex]IQR = Q_{3} - Q_{1}[/tex]

Based on the information provided we fill in:

[tex]IQR = 58 - 45[/tex]

[tex]IQR = 13[/tex]

In order to find what the range for the data set is we need to use the Interquartile Rule:

[tex]Q_{1}-1.5[/tex] × [tex]IQR\\[/tex]

[tex]Q_{3}+1.5[/tex] × [tex]IQR\\[/tex]

[tex]1.5[/tex] × [tex]13 = 19.5[/tex]

Now we plugin in:

[tex]45 - 19.5 = 25.5\\[/tex]

[tex]58 + 19.5 = 77.5[/tex]

Any number below 25.5 is a possible outlier and any number above 77.5 is a possible outlier.  

Answer:

Based on the results of the calculations, 25 could be a possible outlier in the data set.

The radius of a circle is 4 centimeters.what is the area

Answers

A= 50.27 cm^2 :) hopefully this is right

help me for brainlistt

Answers

Answer:

120 ft squared

Step-by-step explanation:

First you find the areas of all the triangle surfaces and add them up

1/2 * b * h = 21

21 *4 = 84

Find the area of the square base and add the 2 values up

6^2 = 36

36+84 = 120

120 ft squares

First you find the areas of all the triangle surfaces and add them up

1/2 * b * h = 21
21 *4 = 84

Find the area of the square base and add the 2 values up
6^2= 36
36+84= 120

Do you guys mine lending me a hand?

Answers

Answer:the answer is 146 or 126

Step-by-step explanation:

84+112+102+96=394 and a pentagon's degrees is 540

so you have to do 540-34=146

so that is 146

the answer is 146

In which of the following cases would you most likely buy a point when closing on a home loan?
a. The monthly payment is reduced by $8 and you plan to sell the home at the end of 3 years.
b. The monthly payment is reduced by $10 and you plan to sell the home at the end of 4 years.
The monthly payment is reduced by $12 and you plan to sell the home at the end of 5 years.
d. The monthly payment is reduced by $14 and you plan to sell the home at the end of 7 years.
C
Please select the best answer from the choices provided
Ο Α
C
B
0
C
OD

Answers

Answer:

d.The monthly payment is reduced by $14 and you plan to sell the home at the end of 7 years.

Step-by-step explanation:

d.The monthly payment is reduced by $14 and you plan to sell the home at the end of 7 years.Step-by-step explanation:

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