8. 8(x) = 2x² + 10x; 8(-4)

Answers

Answer 1

Answer:

x = {5.701562119, -0.701562119}


Related Questions

Please Help Me!! Will Give Brainliest!!!

Answers

x = 2 y = 1
y = 5 x= 4
x = -2 y = -7
y= 0 x= -3

HELP GEOMETRY PLEASE !!!!

Answers

Answer:

∅ = 37°

Step-by-step explanation:

cos ∅ = adj/hyp = 4/5 = 0.8

∅ = 37°

x^2-4x+6x-24 factored​

Answers

Answer: (X+6)(x-4)

Step-by-step explanation:

x^2-4x+6x-24 ==> x^2+2x-24

*Find two numbers that multiplied gives you -24 and add up to 2*

(6)(-4)= -24          6-4=2

Final result= (x+6)(x-4)

Which describes the correlation shown in the scatterplot? 6 5 4 3 2 1 0 1 2 3 3 4 4 5 6​

Answers

Answer:

There is a negative correlation in the data set

Step-by-step explanation:

B

The correlation between the variables as shown is a negative correlation.

What is a scatter plot?

A scatter plot is a plot or graph that shows the association between two variables. It can be used to ascertain the correlation between variables at a glance.

Hence, we can see from the scatter plot as shown in the image attached to the question that the correlation between the variables as shown is a negative correlation.

Learn more about scatter plot: https://brainly.com/question/2764328

The Brooklyn Bridge has towers that reach a height of 276 feet above
the water level. The foundation is 78 feet below the water level. What
is the distance from the top of the towers to the foundation?

Answers

Answer:

354

Step-by-step explanation:

276+78

354

The temperature in a freezer is set at -18°C. The temperature in a
refrigerator is 210 warmer. Should the temperature of the refrigerator be
represented by a positive integer or negative integer? Explain your
reasoning.

Answers

Answer:

Positive

Step-by-step explanation:

refrigerator is 210, so it positive.

12
у
8
Value of y in the triangle

Answers

6

(hope this helped) branliest will be appreciated as well

Select the TWO numbers that are solutions to the equation x2 = 49.
A. 49
B. 7
C. -49
D. 2
E. -7

Answers

Answer:

x = ±7

x=7, -7

Step-by-step explanation:

x^2 = 49

Take the square root of each side

sqrt(x^2) = sqrt(49(

x = ±7

What number is a square root of 1 ?

Answers

Answer:

1 is the square root of 1.

Hope that helps! :)

Step-by-step explanation:

The formula for finding the volume of a cone is V=
nur?n. The radius of a cone is 5 cm and the height of a cone is 10
cm. What is the approximate volume of the cone?

Answers

Answer:

261.8 cm^3

Step-by-step explanation:

1) find the base area

base area = radius^2 x pi = 5^2 x pi = 25 x pi = 78,539816 cm^2

2) find the volume

V = (base area x height)/3 = (78.539816 x 10)/3 = 785.3/3 = 261.8 cm^3


Luke surveyed his friends to see how many minutes it takes each of them to get to school in the moming. The results are in the list below.
6, 11, 14, 4, 8, 8, 10, 9, 14
What is the mean of the data? (Round to the nearest tenth if necessary)

Answers

Answer:

9.3

Step-by-step explanation:

The real answer is 9.33333 but I did as you said and rounded to the nearest tenth.

I got this answer by adding up 6, 11, 14, 4, 8, 8, 10, 9, 14 and I got 84. Then I divided 84 by 9 and got 9.33333.

Sorry if I'm wrong.

Please mark me as Brainliest.

The answer to that question is 9.3

Huilans age is three times Thomas's age. the sun of their ages is 40. what is Thomas's age?

Answers

Answer:

Step-by-step explanation:

Huilan = H

Thomas = T

H = 3T

T+3T = 40(This is the sum)

4T = 40

4T/4=T

40/4=10

T=10

Inflation is at a rate of 7% per year. Today jennas favorite bread costs $3.79 what would it have cost 10 years ago?

Answers

DO u need the percetage or the price?Step-by-step explanation:

4/3 (3.14) (8.5^3)
≈ 2571.13
= 2571. 1

Its says its wrong. What did I did wrong?

Answers

Answer:  4/3 (3.14) (8.5^3) = 771341/ 300 = 2571 41/ 300 ≅ 2571.1366667  this is what i got when i did it

Step-by-step explanation:

1) You had $22 to spend on three pencils. After buying them you had $16. How much did each
pencil cost?
1

Answers

Answer:

$2

Step-by-step explanation:

22-16=6

You spend 6 dollars

6/3= 2

You spent $2 on each pencil

Please help I will give you 20 points again

Answers

C translation of 7 units down
The correct answer is C, a translation of 7 unit down the graph.

Y=X^2
Y=X^2-7
7 is in place of vertical shifts up or down
-vertical shift is down

2. A square had a side length of 5x units. A triangle has side lengths of 5x, (4x+14), and (5x+4) units, For what value of x, will the square and triangle have the same perimeter?
A 2
B 4
C 5
D 3​

Answers

Answer:

Step-by-step explanation:

for the square, it's got 4 sides so

4(5x)  = 5x + 4x+14 +5x + 4

20x = 14x +18

6x = 18

x = 3

answer D looks good


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Answers

Answer:

layers 2 cubes in each layer 3 2x3=6

Step-by-step explanation:

What is the value of (-5)^4?

Answers

—625 because you would multiply -5 four times

Answer:

625

Step-by-step explanation:

Select all of the following answer choices that are reciprocals of each other.
A. 2 and 1/2
B. -5 and 5
C. -7 and -1/7
D. 3 and 4

Answers

C is the answer. Hope it helps

MARKING BRAINLIST PLEASE HELP TYSM!!

Answers

Answer:

20 2/3

Step-by-step explanation:

I did the math and it is right

Find the lateral area for the regular pyramid.

Answers

Answer:12

Step-by-step explanation:

Because i Have nolege.

Solve for b .
Simplify your answer as much as possible.
40=25b

Answers

8/5
I divided from both sides and flip the equation

A circular-shaped pool has a diameter of 23 meters. What is the AREA of the pool in square meters? Use 3.14 for pi. Round to the nearest tenth.

Answers

Answer:

1472.66

Step-by-step explanation:

*PLEASE HELP ME* (math attachment) IT'S PAST MIDNIGHT I'M TIRED AND DESPERATE

Answers

Answer:

D

Step-by-step explanation:

let's rewrite this

x + y = 11                  - equation 1

   - x = - y - 9           - equation 2

solve the first equation for x

x + y = 11            (add -y to both sides to get x by itself)

     x = -y + 11           - equation 3

now substitute -y + 11 for x in the second equation

 y - 11 = - y - 9        (2 negative signs next to each other equals positive)

2y - 11 = -9              (add y to both sides)

      2y = 2               (add 11 to both sides)

        y = 1                (divide both sides by 2)

now substitute y = 1 into equation 3

x = -1 + 11

x = 10

therefore, x = 10 and y = 1. in coordinates, x goes before y

therefore, the coordinates are (10, 1)

therefore the answer is D

good luck my friend! hope this helped a lot! also, i found a website if you don't fully understand this, its called MathPapa, i didn't use it to work this out so my working might be different but it definitely helps me sometimes. for an equation like this, type it likes this: x+y=11; -x=-y-9

-cheesetoasty

It’s the 2nd one I did this

A satellite is at a distance of 1.3776 x 108 feet from the center of Earth. There are approximately
3,280 feet in a kilometer. What is the distance in kilometers between the satellite and the center of Earth?
Write your answer in scientific notation.
Enter only your answer in the space provided.

Answers

Answer:4.2 x 10^4 your welcome

Step-by-step explanation:

*** 7. Sam and Sue have only nickels and
dimes. Sue has 35€. Sam has the same number of
dimes as Sue has nickels, and he has half as many
nickels as Sue has dimes. How many nickels does
Sue have?

Answers

Answer:

there no photo so I cant answer without seeing it

Marcello gets paid $18 per hour at his job. He takes a $4 uber ride to get to work and a $4 uber ride to get home. If he works 8 hours, what is his total profit for the day?

Answers

Answer:

$136

Step-by-step explanation:

x = per hour

y = total profit

4 + 4 = 8

Equation:

y = 18x - 8

y = 18(8) - 8

y = 144 - 8

y = 136

Your hourly rate of pay= $12.00 and overtime rate is time and a half (1 1/2).

Use the above time card:


Please help!

Answers

It’s 13:00 because well I need something

Find the circumference of each circle use 22/7 for pi?

Answers

Answer:

The formula to determine the circumference is: 2 x 3.14 x radius. All you need to do is plug in the value of the radius, 56, and multiply it by 2 and 3.14.

Step-by-step explanation:

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