Mathematics College

What are the factors of 25x^2 – 9y^2?

A. (x-9y)(25x+y)
B. (x+9y)(25x-y)
C. (5x-3y)(5x-3y)

Answers

Answer 1
It’s C
Hope it helps

Related Questions

wright an inequality that would have infinite solutions x≥6 I really need help

Answers

Answer:

n - 6 > 2 n > 8

Step-by-step explanation:

You can get inequalities that are false for any variable. These inequalities have no solution. You can also get inequalities that are true for any variable. These have an infinite number of solutions.

I think sorry if I'm not right.

Which data set has a median of 15?
18, 9, 19, 16, 6, 20. 13
9, 17, 13, 15, 16, 8, 12
18, 15, 11, 14, 19, 15, 6
7,16, 14, 16, 11, 7, 17

Answers

Answer:

B - The second data set.

Step-by-step explanation:

The median is the number in the middle.

The first set's median is 16.

The second's is 15.

The third's is 14.

The fourth's is 16.

The answer is the second data set :)

Answer:

B

Step-by-step explanation:

B

The diameter of a circle is 10 cm find its circumference in terms on pi

Answers

Answer:

31.41593 cm

Step-by-step explanation:

Using the formulas

C=2πr

d=2r

Solving forC

C=πd=π·10≈31.41593cm

Find the factored form of
10a + a2 = 0

Answers

Answer:

a = 0, -10

Step-by-step explanation:

I think this is correct but it may not be.

Answer:

Step-by-step explanation:

a(10+a)=0 or - i cant remember which one it was but hope this helps

Which are correct representations of the inequality –3(2x – 5) < 5(2 – x)? Select two options.

Answers

Answer:

x > 5

Step-by-step explanation:

–3(2x – 5) < 5(2 – x)

-6x + 15 < 10 - 5x

-6x + 5x < 10 - 15

-x < -5

x > 5

Pls not links I am serious

Answers

-1,0,1/2,1.7
If you put 1/2 =0.5

PLEASE HELP ASAP 20 POINTS AND BRAINLIEST IF RIGHT!

(03.01 LC)
The leg of a right triangle is 2 units and the hypotenuse is 5 units. What is the length, in units, of the other leg of the triangle?

A.) 3
B.) Square root of 21
C.) Square root of 29
D.) 7

Answers

I think it is C, sqaure root of 29
The answer is B. Square root of 21.

Formulate the null and alternative hypotheses that can be used to determine whether the school is losing money out of the raffle. Note that the issue is whether the school is losing money, not whether the school is breaking even. Please think about what the implication is when formulating the null and alternative hypotheses.

Answers

Answer:

https://brainly.com/question/23195326

Step-by-step explanation:

Find the product. Simplify.
(a + 1)(a –5)=

Answers

Answer:

[tex](a + 1)(a - 5) \\ {a}^{2} - 5a + a- 5 \\ {a}^{2} - 4 a- 5[/tex]

The satellite Space Explorer flies 32000 miles in 8 hours. Find the rate of change.

Answers

Answer:

4000 miles an hour

Step-by-step explanation:

32000 ÷ 8 = 4000 miles an hour

What is the median of the data set?

3,3,5,5,5,7,7,8,15,15

Answers

Answer:

(5+7)/2 = 6

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

median is the middle number, or in this case the sum of the middle number divided by 2

5 + 7 = 12/2

6

A pitcher contains 3 3/8 cups of juice. Antonio pours 4/8 cup into a glass. How much juice is left in the pitcher?

Answers

Answer:

2 7/8

Step-by-step explanation:

3 3/8- 4/8 = 2 7/8

You pull a marble from a bag with 20 red 20 white and 10 green marbles. You hold onto it and then pull another marble. What is the probability of pulling a red marble and then pulling a green marble?

Answers

I don’t know man sorry that’s my fault

The probability of pulling a red marble and then pulling a green marble is,

⇒ 3 / 5

What is mean by Probability?

The term probability refers to the likelihood of an event occurring. Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one.

We have to given that;

You pull a marble from a bag with 20 red 20 white and 10 green marbles.

Here, Total number of marbles = 20 + 20 + 10

                                                = 50

Thus, The probability of pulling a red marble is,

⇒ 20 / 50

⇒ 2 / 5

And, The probability of pulling a green marble is,

⇒ 10 / 50

⇒ 1 / 5

Therefore, The probability of pulling a red marble and then pulling a green marble is,

⇒ 2 / 5 + 1 / 5

⇒ 3 / 5

Learn more about the probability visit:

https://brainly.com/question/13604758

#SPJ3

What is the solution of this system of equations?
x + 3y = 7
3x + 2y = 0

Answers

Answer:

X=-2, y=3

Step-by-step explanation:

A corner store sells two kinds of baked goods: cakes and pies. A cake costs $7 and a pie costs $6. In one day, the store sold 10 baked goods for a total of $66. What system would work for the situation?

Answers

9514 1404 393

Answer:

c + p = 107c + 6p = 66

Step-by-step explanation:

Assuming you're interested in the number of each that were sold, the system of equations will express the relation for total sold, and the relation for total revenue. We have used the variable c and p to represent numbers of cakes and pies sold, respectively. Your choices may use x and y, instead.

c + p = 107c + 6p = 66

__

The solution can be found by subtracting 6 times the first equation from the second. That tells you 6 cakes were sold, hence 4 pies.


Find the surface area of the cylinder to the nearest hundredth.

Answers

the answer is 25.133

the formula is 2Pirh+2pir^2

plug in your numbers (radius being 1 and height being 3m)

2pi1(3) + 2pi1^2

then put that in your calculator and that’s what u should get

Mr. Gray scored 20, 22, 31, 37, 39, and 40 points in 6 basketball games. How would
the range change if he scored 28 points?

Answers

Answer:

28,30,39,45,47 and 48

Step-by-step explanation:

add 8 to all nubers

if the length of segment A'B' is 12 units, what is the scale factor of the dilation?​

Answers

Answer:

if the length of segment A'B' is 12 units, what is the scale factor of the dilation?

Step-by-step explanation:

A bird fountain is located 6 m from the base of Joey's apartment building. From his window, Joey can see it at a 51° angle of depression.


To the nearest tenth of a meter, how far up the building is Joey's window?


Question 5 options:


4.9 m



7.4 m



7.7 m



9.5 m

Answers

Answer:

h = 7.4 m

Step-by-step explanation:

Given that,

A bird fountain is located 6 m from the base of Joey's apartment building.

The angle of depression is 51°.

Let Joey's window is at a distance of h from the building. Using trigonometry to find it such that,

[tex]\tan\theta=\dfrac{h}{6}\\\\\tan(51)=\dfrac{h}{6}\\\\h=6\times \tan(51)\\\\h=7.4\ m[/tex]

So, the correct option is equal to (b).

Answer: 7.4 m

Step-by-step explanation:

I just took the test

Please help! 20 points

The results of a study revealed a sample proportion of 0.43 for a sample with 78 respondents. What is the 99% confidence interval for this situation?

A.
37.39% and 48.61%
B.
33.75% and 52.25%
C.
32.01% and 53.99%
D.
28.54% and 57.46%

Answers

Answer:

i think it is b I hope it is right

Answer:

D. 28.54% and 57.46%

Step-by-step explanation:

Plato

PLEASE HELP- ITS URGENT- ​

Answers

Answer:

x = 20°

Step-by-step explanation:

here's your solution

=>. we know that, sum of two opposite interior angle is equal to one exterior

=> (3x)° + (3x -20)° = (7x - 40)°

=> 6x - 20° = 7x - 40

=> - x = - 20

=> x = 20

hope it helps

Answer:

20°

Step-by-step explanation:

C.20 is the correct answer.

What is 96% of 675 pls exxplain

Answers

Answer:

648

Step-by-step explanation:

96 percent *675 =

(96:100)*675 =

(96*675):100 =

64800:100 = 648

Answer:

27

Step-by-step explanation:

I can't explain sorry

hi can you please help me with my work​ no Link please no Link

Answers

Answer: -12

Step-by-step explanation:

4 1/2-5 1/8= -5/8 divided by 7 1/2

= -12

Hope this helped!!<3

Answer:

-12

Step-by-step explanation:

4 4/8 – 5 1/8 = (4 – 5) + (4/8 – 1/8) = -1 + 4 – 1/8 = -1  + 3/8 = -5/8

7 1/2 ÷ 5/8 = 15/2 ÷ -5/8 = 15/2 × 8/-5 = 15 × 8 2 × -5 = 120 -10 = 120/-10 ÷ 10/10= –12

find the length of x

help please i need it ssap

Answers

Answer:

x = 5.5

Step-by-step explanation:

5+6 = 11

[tex]\frac{2.5}{x}[/tex]=[tex]\frac{5}{11}[/tex]

cross multiply

5x = 27.5

x = 5.5

The length of a rectangle is 16 meters and the width is 3 meters. Find the area.

Answers

Answer:

16x3= 48 so the answer is 48m^2

Bradley's bike has an odometer, which shows how far he rides. Bradley rode 2.7 miles on
Monday, 2.4 miles on Tuesday, and 2.8 miles on Wednesday.
How many days did Bradley ride more than 2 miles?

Answers

Answer:

7.9

Step-by-step explanation:

I added 2.7 + 2.4 + 2.8, lmk if it's wrong.

Anyone know how to answer this question

Answers

its b:)! hoped this helped<3

Who knows the answer for this problem

Answers

- Each friend has 10 nails to paint

- There are 8 friends

- Jackie finished painting 4 friend's nails

If there are 8 friends, and each friend has 10 nails to paint, then there are 80 nails that need to be painted in total.

Jackie finished painting 40 nails.

So the math sentence will be:

80 - 40 = 40

--------------------------------------------------

Jackie needs to paint 40 more nails.

The probability that it will be warmer today than it was yesterday is 0.1.
The probability that it will be colder today than it was yesterday is 0.7.
a .What is the probability that it will not be colder today than it was yesterday?
b What is the probability that it will not be warmer today than it was yesterday?
​

Answers

Answer:

a) 30% probability that it will not be colder today than it was yesterday

b) 90% probability that it will not be warmer today than it was yesterday

Step-by-step explanation:

In this question, we have that:

0.1 = 10% probability it will be warmer today than yesterday.

0.7 = 70% probability it will be colder today than yesterday.

a .What is the probability that it will not be colder today than it was yesterday?

70% probability it will be colder, so 100 - 70 = 30% probability that it will not be colder today than it was yesterday.

b What is the probability that it will not be warmer today than it was yesterday?

10% probability it will be warmer today than yesterday, so 100 - 10 = 90% probability that it will not be warmer today than it was yesterday

Examine each set of functions and determine which has the greater rate of change, if either. Explain your reason.

Answers

Answer:

The Spotted Cows delivery service has a greater rate of change.

Explanation

The Spotted Cows function is: y = 2.8x + 2

Dairy Farms function is: y = 2.1x + 10

I have graphed these two functions to determine which has a greater rate of change. The red line represents the Spotted Cow service while the blue represents the Dairy Farms service. On the graph you can see that the red line intersects and shifts above the blue line, meaning the rate increases at a higher rate than the blue.

Hope this helps!

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