4x2 - 9y2 – 20x + 25

Answers

Answer 1

Answer:

Since both terms are perfect squares, factor using the difference of squares formula, a2−b2=(a+b)(a−b) where a=2x−5 and b=3y

.

(2x−5+3y)(2x−5−3y)

Step-by-step explanation:

hope this helps


Related Questions

if 1/4 of the pie was eaten what fraction of the original whole pie remains

Answers

Answer:3/4

Step-by-step explanation:

3/4 of the pie remains

A patio is designed using two types of tiles. The tiles are similar isosceles triangles. The lengths of the sides of the larger triangle are 6 inches, 6 inches, and 4 inches. Which one of these could be the side measurements of the smaller triangle?

Answers

Ommited Answer Choices:

A. 4 inches, 4 inches, 4 inches

B. 3 inches, 3 inches, 3 inches

C. 3 inches, 3 inches, 2 inches

D. 2 inches, 2 inches, 3 inches

Answer:

C. 3 inches, 3 inches, 2 inches

Step-by-step explanation:

The ratio of the corresponding lengths of two similar polygons will always be equal.

Thus, the ratio of the smaller sides of both similar isosceles ∆ should equal the ratio of the other sides.

Thus, from the options given, the side measurements that could be that of the smaller triangle are: 3 inches, 3 inches, 2 inches.

This is because: ratio of one of the equal side of the larger triangle to one of the equal side of the smaller triangle equal ratio of the shortest side of the bigger triangle to the shortest side of the smaller triangle.

Thus: 6/3 = 4/2 = 2.

cghmfhjvghvjvhjvhjvgnmvgvhvgmvgnmvg i need answer

Answers

1.)17.32 which would round to 17.3(to find mean you add up all the numbers in the data set then divide by how many numbers there are)

2.)22(mode is the number that is repeated the most in a data set)

in the school there is 1 boy for every 4 girls. there is a total of 11 boys how many girls are in choir

Answers

Answer:

There are 33 girls in choir

Step-by-step explanation:

4 x 11 = 44 (we get four from the 1 boy for every 4 girls)

assuming that we have 44 kids in the class, 1/4 will be boys. 44/4 = 11 which means that we subtract 11 from 44 which will get you 33.

If there is a total of 11 boys. Then the number of girls in the choir will be 44 girls.

What is Algebra?

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

PEMDAS rule means the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.

In the school, there is 1 boy for every 4 girls.

If there is a total of 11 boys. Then the number of girls in the choir will be given as,

⇒ 11 x 4

⇒ 44 girls

If there is a total of 11 boys. Then the number of girls in the choir will be 44 girls.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ5

From 24 grams to 96 grams ( percent change )

Answers

Answer:

i think it is 300%

Step-by-step explanation:

the scale on a map is 1:500000
two towns are 7cm apart on the map
what is the actual distance between the towns in kilometers ?

Answers

Answer:

35km

Step-by-step explanation:

1:500000

7:?

(cross multiply)

=3500000cm

1km=100000cm

3500000cm

3500000cm×1km

100000cm

=35km

the Venn diagram is shown below​

Answers

n(A), n(B) and n(AnB) are given and n(AUB)'s complement is asked.

Which one?
A. B. C. or D? ​

Answers

I’m confused on this one aswell

f(x) = -2x+3

find f(-3)

Answers

Answer:

3

Step-by-step explanation:

this is because 3 would be the answer

f(x)=-2+3

0=-2x+3


2x=3

Divide both sides

x=3/2

guys pls pls help WILL mark brainliest

Answers

Answer:

Yes, y varies directly with x. The constant of variation is -3 so the function rule would be y= -3x

Step-by-step explanation:

If you look at the y values in the table, they are just the x values but multiplied by -3.

-3 x (-3) = 9

4 x (-3) = -12

6 x (-3) = -18

Direct variation can be shown by y=kx, where k is a constant. The resulting function creates a linear graph.

5x+8y=6π solve equation for y

Answers

5x + 8y = 6pi

8y = 6pi - 5x
Y = (6pi -5x) / 8

This is the furthest you could simplify this equation. To get an exact value, you would need another equation to solve for x.
5x+8y=6π
8y=6π-5π
8y=π
Answer: Y=π/8

Find three consecutive even integers such that their sum decreased by 34 is equal to the first integer. Find the first integer.

Answers

Answer:

The first number: 14

The second number: 16

The third number: 18

Step-by-step explanation:

Equations

Let's assume:

x=the first even number.

x+2=the second even number

x+4=the third even number

The sum of all three is: x + x + 2 + x + 4

The condition states the sum decreased by 34 equals the first number:

x + x + 2 + x + 4 - 34 = x

Moving all the variables to the left side and the numbers to the right side:

x + x + 2 + x + 4 - 34 - x = 34 - 2 - 4

Simplifying:

2x =  28

Solving:

x = 28 / 2 = 14

The first number: 14

The second number: 16

The third number: 18

PLEASE HELP, GIVING BRAINLIEST!!!

These triangles are congruent by _____.

A. SAS
B. AAS
C. SSS
D. Not enough information
E. None of these

Answers

Answer:

I think it might be C...

Please just do whatever you can

Answers

Answer:

6. -62/289 or -0.249135

Explanation:

8/17x-3/5=-24/85x15/17= -62/289

T = CB-5, for C
C=


What’s the answer

Answers

Answer:

C=t/b + 5/b

Step-by-step explanation:

Please make me Brainliest

HELPPP! PLEASEEEE, middle school is hard.

Answers

Answer:

a. sss

Step-by-step explanation:

Answer:

All it is asking you to do is chose which letters at the bottom prove that ADE=BCE. I would say none of them, but I don't really know. I know my explanation is a little unclear but I hope it will help you in some way.

Step-by-step explanation:

A rock garden is in the shape of a triangle as shown. Which equation could be used to find the area of the rock garden

Answers

Answer1/2(8x15)=60ft2

Step-by-step explanation: hope this helps you

The area of the rock garden will be represented by the equation 1/2 x 15 x 8 = 60. The correct option is D.

What is the area of a triangle?

The entire area filled by a triangle's three sides in a two-dimensional plane is referred to as the triangle's area. The fundamental equation for a triangle's area is A = 1/2 x b x h, where b and h are the product of the triangle's base and height.

The area of the triangle will be calculated as,

Area = 1/2 x 15 x 8

Area = 15 x 4

Area = 60 square feet

To know more about an area of a triangle follow

https://brainly.com/question/17335144

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0.375, 75% , 5/8, 1/2
From least to greatest pls

Answers

03.75, 1/2 , 5/8 , 75%

Determine which product has the lower unit price one gallon of orange juice for $3.49 or B a half gallon of orange juice for $1.70

Answers

I think that the half gallon of orange juice has a lower unit price

help I will gvie brainiest
Shelly runs 2.5 miles in 18 minutes. What is her mile time in minutes?​

Answers

Shelly runs 2.5 miles every 18 mins. To find out how many minutes it takes her to run one mile, let's divide 18 by 2.5

18 mins / 2.5 miles = 7.2 mins / mile

Can someone help me with these two questions step by step plz

Answers

Answer:

1) x= 20

2) x= 75

Step-by-step explanation:

In the first problem, we see vertical angles. This means that both angles equal each other: 50= 2x+10

Step 1- Subtract 10 to both sides.

50= 2x+10

-10         -10

40= 2x

Step 2- Divide both sides by 2.

40= 2x

2     2

x= 20

In the next problem we see a straight line and an intersecting point. Now, both of these angles sum up to 180 degrees. So the equation would be:

x-10+2x-35= 180

Step 1- Add common variables.

(x+2x)+(-10-35)= 180

3x-45= 180

Step 2- Add 45 to both sides.

3x-45= 180

   +45  +45

3x= 225

Step 3- Divide both sides by 3.

3x= 225

3      3

x= 75

Input the value of x into the equations.

75-10= 65

2(75)-35= 115

Hope this helps!

2x-3y=6 How do you get y by itself

Answers

Answer:

[tex]y=\frac{2x-6}{3}[/tex]

Step-by-step explanation:

3y=2x-6

[tex]y=\frac{2x-6}{3}[/tex]

First, you have to move the x, along with the coefficient(2).

To move the 2x, you have to subtract it from both sides.

So you have -3y= 6-2x

Now you have to divide by -3.

DON’T FORGET THE NEGATIVE.

So you have y = -2 +2/3

In slope intercept form

If this helped please mark branliest

Name an angle supplementary to /EOD

Answers

It’s cod, they add up to 180

Use Graphs A-D for Exercises 9-11. During the winter, the amount of water that flows
down a river remains at a low constant. In the spring, when the snow melts, the flow of
water increases drastically, until it decreases to a steady rate in the summer. The flow
then slowly decreases through the fall into the winter. Consider the graphs shown.
A.
B.
Water (gallons per second)
Water (gallons per second)
Season (winter-fall)
Season (winter-fall)
C.
D.
Water (gallons per second)
Water (gallons per second)
Season (winter-fall)
Season (winter-fall)
9. Which graph best represents the given situation?
Graph B
10. Describe the other three graphs.
11. What are possible situations for graphs B, C, and D?

Answers

did u get the awnsers?


Solve the equation for y: -8x + 4y = 20
A)
y-2x5
B)
y = 2x + 5
y = 2x+5
1/3x + 20
D)
y =

Answers

Answer:

y=2x+5

Step-by-step explanation:

One car rental agency charges $0.29 per mile plus a $10 weekly fee. Another rental agency charges $.0.35 per mile with no fee. You need to rent the car for 3 weeks. Write and solve an equation to find the number of miles for which both agencies will charge the same.

Answers

Answer:

166.67 miles.

Step-by-step explanation:

let the number of mile for which the cost for both car rental be same is x mile

For first car rental

weekly fees charged = $10

cost of 1 mile = $0.29

cost of x miles = x*cost of 1 mile = $0.29x

total money charged by first car rental = $10 + $0.29x

For other car rental

weekly fees charged = 0

cost of 1 mile = $0.35

cost of x miles = x*cost of 1 mile = $0.35x

total money charged by other car rental = $0.29x

_______________________________________

since we have to find miles for which charges are same

thus

total money charged by first car rental  = total money charged by other car rental

10 + 0.29x = 0.35x --------------------equation required

=> 10 = 0.35x - 0.29x

=> 10 = 0.06x

=> x = 10/0.06 = 166.67

Thus, the number of miles for which both agencies will charge the same is 166.67 miles.

20 POINTS!!!! Help please

Answers

Answer:its c

Step-by-step explanation:

Melanie’s family drove for 5 hours on the main highway and 3 hours on a smaller highway, and traveled a total of 456 miles. Their average speed was 8 miles per hour faster on the main highway than on the smaller highway. What was their average speed on the smaller highway?

Answers

Answer:52 miles per hour

Step-by-step explanation:

Earth is 148.61 million km from the sun in scientific notation it is

Answers

Answer:

1.48x10^2  ten to the second

Step-by-step explanation:

2q − q = 18 what does q=

Answers

Answer:

18

Step-by-step explanation:

Because -1 q would make it a positive 1q (q) so q=18

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