Mathematics College

–9x + 9y = 9
y = –7

(
,
)

Answers

Answer 1

Answer:

x=-8

(-8,-7)

Step-by-step explanation:

–9x + 9y = 9

–9x + 9(-7) = 9 (y=-7)

-9x-63=9

Both side +63

-9x=63+9

-9x=72

Both side divide   -9

x=-8

y=-7

(-8,-7)

Related Questions

ASAP PLS HELP WILL MARK BRAINLIEST!!

Answers

Answer:

The lines intersect at (-2,2).

Step-by-step explanation:

The line has an y intercept of 1 and a slope of -1/2 so after graphing the both of them thats where they intersect.  

What is the value of
the digit 9 in the
number below?
157,243

Answers

Answer:

Nine hundred

The 9 is in the hundred place. So it would stand for 9 hundred.

the 9 is in the hundreds place.

Help please! Last questiom btw!​

Answers

Answer:

3015³

Step-by-step explanation:

Hellllloooo!

One last time why dont we.

This time we are given a cylinder to find the area of which is pretty fun ngl.

Lets take a look at the formula for a cylinder :

Volume = [tex]\pi[/tex] x r² x h

Now this may look weird cause that house thing is for sure not a number but trust me it is easy once you know what you're looking at.

So that house thing is called pi, and really it is worth 3.14 just it looks like that for some reason. But it is used to find the area of circles.

So what we are going to do is find the area of the circle which is the base of the cylinder and multiply it by the height to find the total area.

Again lets see what we are given :

Radius = 8

Height = 15

Now we plug this into the formula :

Volume = [tex]\pi[/tex] x r² x h

Volume = [tex]\pi[/tex] x 8² x 15

(don't forget your little 2 after the radius (8))

So first lets do pi x 8²

=

Which gives us roughly around 201

So now we have the surface area of the base circle of this cylinder, all we have to do is multiply by the height.

So :

201 x 15

=

3015³

(don't forget your little 3 cause its 3D)

But that is your answer.

I hope this helps!

If you have any questions or concerns comment or message me :)

For a two-day rental at the surf shop, it cost $55 to rent a surf board and $70 to rent a paddle board. On a certain weekend, the surf shop rented 51 total surf boards and paddle boards and made $3300. How many paddle boards were rented?

Answers

Answer:

7 paddleboards

Step-by-step explanation:

In order to solve this, you have to find the total amount that they earned by renting surfboards.

To find this you multiply 55 x 51 =2,805.

Then you use this factor and subtract it from the total amount they earned.

$3,300 - $2,805 = $495.

This shows us that they earned a total of $495 from renting out paddle boards. To find out how many paddle boards were rented out you have to divide $495 by $70 which is how much they charge to rent paddle boards.

495/70 = 7

In conclusion, they rented out 7 paddle boards.

Factor

x2 + 10x + 25

Answers

x=-5 i hope this helpsss

Answer:

(x+5)(x+5)

Step-by-step explanation:

x²+10x+25

25

/ \

+5 and +5

(x+5)(x+5)

if you dont understand. I recommend this video https://youtu.be/yBCAv_NzzPQ

at 10:21

Can someone help me it will for sure help alot someone who is confident on doing it WILL GIVE BRAINLIEST

Answers

Answer:

....................

Find the average rate of speed, expressed in miles per hour (unit rate). A post office truck delivered mail on a 9-mile route in 2 hours.

please help ! D:

Answers

Answer:

4.5 miles per hour

Step-by-step explanation:

Evaluate the integral using integration by parts with the indicated choices of u and dv. (Use C for the constant of integration.) xe7x dx; u

Answers

Answer:

[tex]\displaystyle \int {xe^{7x}} \, dx = \frac{e^{7x}}{7} \bigg( x - \frac{1}{7} \bigg) + C[/tex]

General Formulas and Concepts:

Calculus

Differentiation

DerivativesDerivative Notation

Derivative Property [Multiplied Constant]:                                                           [tex]\displaystyle \frac{d}{dx} [cf(x)] = c \cdot f'(x)[/tex]

Basic Power Rule:

f(x) = cxⁿf’(x) = c·nxⁿ⁻¹

Integration

Integrals

Integration Property [Multiplied Constant]:                                                         [tex]\displaystyle \int {cf(x)} \, dx = c \int {f(x)} \, dx[/tex]

U-Substitution

Integration by Parts:                                                                                               [tex]\displaystyle \int {u} \, dv = uv - \int {v} \, du[/tex]

[IBP] LIPET: Logs, inverses, Polynomials, Exponentials, Trig

Step-by-step explanation:

Step 1: Define

Identify

[tex]\displaystyle \int {xe^{7x}} \, dx[/tex]

Step 2: Integrate Pt. 1

Identify variables for integration by parts using LIPET.

Set u:                                                                                                             [tex]\displaystyle u = x[/tex][u] Basic Power Rule:                                                                                     [tex]\displaystyle du = dx[/tex]Set dv:                                                                                                           [tex]\displaystyle dv = e^{7x} \ dx[/tex][dv] Exponential Integration [U-Substitution]:                                             [tex]\displaystyle v = \frac{e^{7x}}{7}[/tex]

Step 3: integrate Pt. 2

[Integral] Integration by Parts:                                                                      [tex]\displaystyle \int {xe^{7x}} \, dx = \frac{xe^{7x}}{7} - \int {\frac{e^{7x}}{7}} \, dx[/tex][Integral] Rewrite [Integration Property - Multiplied Constant]:                 [tex]\displaystyle \int {xe^{7x}} \, dx = \frac{xe^{7x}}{7} - \frac{1}{7} \int {e^{7x}} \, dx[/tex]

Step 4: Integrate Pt. 3

Identify variables for u-substitution.

Set u:                                                                                                             [tex]\displaystyle u = 7x[/tex][u] Basic Power Rule [Derivative Property - Multiplied Constant]:             [tex]\displaystyle du = 7 \ dx[/tex]

Step 5: Integrate Pt. 4

[Integral] Rewrite [Integration Property - Multiplied Constant]:                 [tex]\displaystyle \int {xe^{7x}} \, dx = \frac{xe^{7x}}{7} - \frac{1}{49} \int {7e^{7x}} \, dx[/tex][Integral] U-Substitution:                                                                               [tex]\displaystyle \int {xe^{7x}} \, dx = \frac{xe^{7x}}{7} - \frac{1}{49} \int {e^u} \, dx[/tex][Integral] Exponential Integration:                                                               [tex]\displaystyle \int {xe^{7x}} \, dx = \frac{xe^{7x}}{7} - \frac{e^u}{49} + C[/tex][u] Back-Substitute:                                                                                       [tex]\displaystyle \int {xe^{7x}} \, dx = \frac{xe^{7x}}{7} - \frac{e^{7x}}{49} + C[/tex]Factor:                                                                                                           [tex]\displaystyle \int {xe^{7x}} \, dx = \frac{e^{7x}}{7} \bigg( x - \frac{1}{7} \bigg) + C[/tex]

Topic: AP Calculus AB/BC (Calculus I/I + II)

Unit: Integration

two points on a line L are (5,2) and (7,-4). what is the slope of L

Answers

Answer:

-3

Step-by-step explanation:

The slope of a line can be calculated with the formula (y2-y1)/(x2-x1)

In this case we have:

(-4-(2))/(7-5)

(-6)/(2)

-3

Let me know if this helps!

What is the area? Write your answer as a fraction or as a whole or mixed number. 1 m square meters​

Answers

Answer:

The Area is all the space inside a given shape/object added together. The (assumed) Area of the problem you've given is 1 square m, since there is only 1 square m.

Step-by-step explanation:

-HELP QUICK!!- What is the distance from P to Q?

A P E X

Answers

Answer:

might be 7

Step-by-step explanation:

count the rise and run from Q to P. count up 3 and right 4.

Find the equations of the lines that pass through the point (4, 5) and are parallel to and perpendicular to the line with equation y + 7x = 5
Parallel: y =
Need help? Click the link to see a video example,
Perpendicular: y =

Answers

Answer:

Parallel: y = -7x+33

Perpendicular: y = (⅐)x + 31/7

Step-by-step explanation:

y+7x = 5

Slope of the line is -7.

Slope of any parallel to the line is also -7.

Slope of any perpendicular to the line is ⅐.

A + (b + c) = (A + b) + c


What property is this equation

Answers

Answer:

Step-by-step explanation:

Associative property

3. What are the factors in this expression 9+ (x-7)(Y+6)

Answers

Try 6578 :) I think that may be right,

please i need help pleasee

Answers

The answer is 1 1/3 or one and one third or 1.3 repeating :)

i can’t figure out how to do this

Answers

Answer:

i need to know the answer choices

Step-by-step explanation:

Answer:

-25 is correct I think

Step-by-step explanation:

John paints blue spots on his car. He usually paints these blue spots in pairs. If the total count of blue spots is 72, how many pairs of blue spots are there?

Answers

Answer: 10 quarts of blue paint for every 2 quarts of green paint

Step-by-step explanation: The graph represents the relationship between the number of quarts of blue paint in the mix, xx and the number of quarts of yellow paint, yy.

The point (2 , 10) on the graph indicates 2 quarts of blue paint for every 10 quarts of yellow paint .

a painter can paint 180 square feet in 30 minutes. how many square feet can he paint in 120 minutes?

Answers

Answer:

720

Step-by-step explanation:

jayfeather friend me

Answer:

720

Step-by-step explanation:

The revenue equation of a company, in terms of the price of its product, is R(p) = -15p^2 + 300p + 12000.
find the revenue when the price is $10

Answers

Answer:

the answer is six thousand

The sum of the measures of the interior angles of a convex polygon is 720' Classify the polygon by the number of sides.

Answers

Answer:

Since the figure with angles measuring 0˚ is 1 lines, then the figure with interior angles of 720˚ has 1+5=6 sides.

Step-by-step explanation:

335.71 divided by 1000

Answers

0.33571

Anyways thanks for points


1. How do you find the slope in a graph?

Answers

1. Pick two points on the line and determine their coordinates.

2. Determine the difference in y-coordinates of these two points (rise).

3. Determine the difference in x-coordinates for these two points (run).

4. Divide the difference in y-coordinates by the difference in x-coordinates (rise/run or slope).

Words
a. Divide the difference
between 1,200 and 700 by 5

Answers

Answer:

100

Step-by-step explanation:

1,200 - 700 = 500

500/5 = 100

Btw, uan got to, but I would really appreciate it if u marked me brainliest cuz I need one more nd I tried

write the algebraic expression: The difference of 5 times a number and 11 is 17

Answers

Answer:

5x - 11 = 17

Step-by-step explanation:

Answer:

5x - 11 = 17

Step-by-step explanation:

Five times a number is 5x when the number is unknown.

The difference between that number and 11 is (difference means subtract)

5x - 11

All of which = 17

5x - 11 = 17

You are not asked to solve it. Just write it.

Which geometric sequence has a common ratio of -9?
{-1, -9, 81, 729, …}
{1, -9, 81, -729, …}
{-9; -81; -729; -6,561; …}
{81; 729; 6,561; 59,049; …}

WILL GIVE BRAINLIEST!!!!

Answers

Answer:

second one

Step-by-step explanation:

just multiply by -9 and see which one fits in

Answer:

{1, -9, 81, -729, …}

Step-by-step explanation:

Geometric sequence is basically multiplying the previous number by the constant. So it is 1 x -9 = -9, -9 x -9 = 81, -81 x -9 = -729, and so on.

how many times greater is 6x10⁹ than 3x10²​

Answers

There this app called Photomath and you scan you work sheet one question at a time and it tells you the answers and the steps
It is 2x10^7 times greater.

If f(1) = 2 and f(n+1) = f(n)^2 – 3 then find the value of f(3).

Answers

Answer:

The value of f(3) = -2.

Step-by-step explanation:

First of all, let's find f(2).

[tex]f(n+1)=f(n)^{2}-3[/tex]

[tex]f(1+1)=f(1)^{2}-3[/tex]

[tex]f(2)=f(1)^{2}-3=2^{2}-3=1[/tex]

Now, we can find f(3):

[tex]f(2+1)=f(2)^{2}-3[/tex]

[tex]f(3)=f(2)^{2}-3=1^{2}-3=-2[/tex]

Therefore, the value of f(3) = -2.

I hope it helps you!

i need help due tonight

Answers

Answer:

s=6

Step-by-step explanation:

3(s+4)=30

multiply 3×s and 3×4

3s+12=30

-12=-12

3s=18

divide 18 and 3s

s=6

Answer:

s=6

Step-by-step explanation:

A nutritional consulting company is trying to find what percentage of the population of a town is overweight. The marketing department of the company contacts by telephone 600 people from a list of the town's telephone directory. All 600 people give answers to the survey. Which of the following is the most significant source of bias in this survey?

a. Size of sample.
b. Undercoverage.
c. Voluntary response bias
d. Nonresponse.
e. Response bias.

Answers

it is undercoverage bias

a rectangle has perimeter 86 cm and length 37 cm. what is its width

Answers

Answer:

6 cm

Step-by-step explanation:

37 × 2 = 74 cm86 - 74 = 12 cm12 ÷ 2 = 6 cmSo, the width is 6 cm

I hope this helps!

Answer:

The rectangle's width is 6.

Step-by-step explanation:

You are given the perimeter is 86 cm. The perimeter is the sum of all the sums. For a rectangle, use the formula, P = 2l + 2w. So, we plug the given into our equation: P = 86, l = 37. This results in:

86 = 2(37) + 2w

86 = 74 + 2w

Subtract 74 on each side.

2w = 12

Then, divide each side by 2.

w = 6

Hopefully this helped. And good luck in your studies.

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A blueprint of a house has a scale of 1 in = 6 ft. the living room has dimensions (width x length) of 18 ft by 24 ft. What are the dimensions on the blueprint of the living room? (use 2 different proportions; one for width and one for length) aw = 108 in, l = 144 in bw = 3 in; l = 4 in cw = 3 in; l = 144 in dw = 3 in; l = 4 in "We consider the underlying fallacy of the plaintiff's argument to consist in the assumption that the enforced separationof the two races stamps the colored race with a badge of inferiority. If this be so, it is not by reason of anything found inthe act, but solely because the colored race chooses to put that construction upon it..."--Plessy v. Ferguson, 1896Because of this Supreme Court decision,A African-Americans were guaranteed full equality and voting rights in southern states.B states were prohibited from implementing racially segregated institutions and public facilities.states were guaranteed the right to implement racially segregate institutions and public facilities.D President Grover Cleveland lost the support of southern Democrats, which led to his defeat in the election of 1900. please help me with these two ill give brainiest to the right answers what are you most thankful for WILL MARK BRAINLIEST!!! DUE SOON!!Explain the need for businesses to use forecasting models and evaluate the use of Time Series Analysis as one of these models Identify the next three terms of the sequence below:-6, -10, -14,... The vertices of a swimming pool are E(5, 5), F(5, 20), G(35, 20), and H(35, 5). The endpoints of a line that divides the pool into two sections are J(15, 5) and K(15, 20). The coordinates are measured in meters. What is the area of each section? which list shows the phase of mitosis in the correct order what is 3.33333333333 as a whole number? :After reading Part 1 of "The Veldt, write a one paragraph response answering the question, "OMG! What Happened!?!" in the short story. Your response should include text evidence from the story to support your response. (In other words, you are writing a GIST or Summary.) Here are the ingredients needed to make 8 pancakes250ml milk140 g flour5 g buttera) Simon makes 4 pancakes. It takes 52,000 Joules to heat a cup of coffee to boiling from room temperature. How long a piece of 20 cm wide Aluminum foil would it take to make a capacitorlarge enoughto hold this amount of energy if one were to use plastic garbage bag with a 2.6 x 10-5m thickness that breaks down at 610 volts as a dielectric What is the slope of y= 6x + 6? Find the mean, median, mode, and range for each set of data 21.5, 35.5, 49.5, 16.3, 35.5 Which country is not an originator of a Martial Arts style? The questions and answer options are on the picture help pls Solve 7(f-5) = 28Help meeeee hey anyone mind helping out What is the area of the circle? *4 yd12.56 square yards25.12 square yards50.24 square yards200.96 square yards