Mathematics Middle School

What are the factors of the expression: 64x2 - 255 ?


(8x - 15)(8x - 15)

(8x - 25)(8x + 25)

(8x - 15)(8x + 15)

(4x + 15)(4x - 15)

Answers

Answer 1

Answer:

[tex]\displaystyle Unfactourable[/tex]

Explanation:

This expression is unfactourable with rational numbers. Perhaps you made an errour in your expression. Now, what I think you meant was the expression and factours below:

[tex]\displaystyle 64x^2 - 225 \\ \\ [8x - 15][8x + 15][/tex]

If this was what you meant, then here you are.

Though, I am joyous to assist you at any time.

Related Questions

1. What is the approximate world population? There are 7.674 billion people on earth.
2. What is the approximate world refugee population? 3.6 million

3. What percent of the world population consists of refugees? Round your answer to the nearest tenth.

4. Roughly 3.5 billion people have wealth of less than US $10,000. What percentage of the global population does this represent? Round your answer to the nearest hundredth.

5. Approximately 50% of all refugees are children (under the age of 18). How many refugees are children? Round your answer to the nearest whole number

Answers

Answer:

?????///?//??////?????

Step-by-step explanation:

(1.) 8 billion (2.) 4 million (3.) .30% (4.) — (5.) half of all the refugees

The probability of an event is 2 over 7, what must be the probability of its complement?

Answers

Answer: 0.2857

Step-by-step explanation: Hope this helps

5/7 is your answer :)))

Which of the following best describes the relationship between the variables on the scatter plot?

A: linear and non-linear association


B: non-linear association

C: linear association

D: no association

Answers

the answer is B i hope you have a good day
It’s c, I’m positive

Please help will give brainly

Answers

Answer:

the correct answer is 5/24. hope this helps

Which graph represents the function f (x) = 8 Superscript one-third x?

edge 2020

Answers

0,8 is the answer in the problem.

Answer:

B

Step-by-step explanation:

Got it right on Edge 2020-21. Hope this helps you, have a great day!

HELP!
Kaia says the graph does not represent a function. Is Kaia correct? Explain your reasoning.

Answers

The function shown in the graph is the graph of the sine function. Then she is incorrect.

What is a sinusoidal Function?

It is a function that repeats itself in a particular time interval.

Kaia says the graph does not represent a function.

The function shown in the graph is the graph of the sine function.

Then she is incorrect.

The graph is given below.

More about the sine function link is given below.

https://brainly.com/question/3876065

#SPJ1

In 3 1/2 months DeShawn has accumulated a debt of -$70.00. What was the average amount of debt he accumulated per month?
A.-$24.50 per month
B.-$20.00 per month
C. $ 0.50 per month
D. $23.33 per month

Answers

Answer:

-$20.00

Step-by-step explanation:

When is the constant of proportionality the same as the unit rate when comparing two quantities?


1 only when the two quantities are indirectly proportional

2 only when the two quantities are directly proportional

3 never

4 always

Answers

Answer: C

Step-by-step explanation: They are never the same

Answer:

only when the two quantities are directly proportional

Step-by-step explanation:

I got it right on my quiz hope this helps!!!

An architect makes a model of a new house. The model shows a tile patio in the backyard. In the​ model, each tile has length
and width
The actual tiles have length
and width
. What is the ratio of the length of a tile in the model to the length of an actual​ tile? What is the ratio of the area of a tile in the model to the area of an actual​ tile? Use pencil and paper. Describe two ways to find each ratio.

Answers

The two ways to find the ratio of the length is to turn the inches into feet or the feet into inches

So the answer can be solved like this:

1/36ft to 1/4ft which is 9:1 (blueprint size to actual size)

or

1/3in to 3in which is also 9:1 (blueprint size to actual size)

The formula F = 1.8C + 32 gives the temperature in degrees Fahrenheit (F) for a given temperature in degrees Celsius (C). There is one temperature for which the number of degrees Fahrenheit is equal to the number of degrees Celsius. Complete the equation you can solve to find that temperature and then use it to find the temperature. Use the variable C to represent the number of degrees Celsius where degrees Fahrenheit and degrees Celsius are the same.


The equation is _____ =_____ + _____.

The temperature for which the number of degrees Fahrenheit is equal to the number of degrees Celsius is _____°C.

Answers

B ........................

Answer:

40 C

Step-by-step explanation:

The frequency table shows the height ,in inches ,of 12 gymnastic.What fraction of the gymnastics are 59 inches or shorter?

Answers

Answer:

can you show the table. .

hi i need help please

Answers

Answer:

28

Step-by-step explanation:

16 Ada to eves house

12 Eva to pool

28

28 is the answer hope it help

The circumference A of a circle varies directly with its radius. A circle with a radius of 4 has a circumference of about 25.1 in.2. What would be the circumference of a circle with a radius of 9 in.?

Answers

Answer:

25.1 in.2.

Step-by-step explanation:

Which of the following best shows the commutative property of addition?
Group of answer choices

A. 4 + 5 = 4 + (2 + 3)

B. 4 + 5 = 9

C. 4 + 5 = 4 - (-5)

D. 4 + 5 = 5 + 4

Answers

D. Because the numbers are reversed
It’s d I’m pretty sure

Help pls Ill thank you and give you brainlist

Answers

-y>10x-2 hope this helped :)
Y > x-1/3 + 1

Have a nice day

Please can anyone help me with this I tried to do it and I got it wrong.

Answers

Answer:

how do I not know it not a vires?

Step-by-step explanation:

Umm... when I click into the picture it’s all black?

PLEASE HELP!!!!! i will give you brainly!!!

Answers

Hello Chloie!

The answer you are looking for is:

B 2/3

-- i am not sure about this, but i tried.

f (x) = 2x + 5

Clearing x we have:

2x = y - 5

x = (y-5) / 2

Rewriting:

f (x) ^ - 1 = (x-5) / 2

Evaluating x = 8:

f (8) ^ - 1 = (8-5) / 2

f (8) ^ - 1 = 3/2

Answer:

f (8) ^ - 1 = 3/2

option 2

-- if correct, please mark brianliest and click the thanks button :)

explain how to solve for the missing side from the similar figures given and solve. (do not just give the answer)

Answers

Answer:

x=14

Step-by-step explanation:

Since the triangles are similar, you first line up the sides. Then, because the 16 and the 24 line up together, you divide them to find out how much bigger the first triangle is, which is 3/2 or 1.5. After that, you can see that the 21 and the x are on the same side, so you would divide 21 by 1.5 or 3/2 to get x. 21÷1.5=14.

x=14

Answer: X= 14

Step-by-step explanation: line AC equals 21 and line BC equals 24, i put 24 over 21 like a fraction then i look at the smaller triangle now EF is proportionate too BC so next to the 24 i put 16 and line DF is X so you put X underneath 16 and next too 21. now you cross multiply and divide leaving you with 14 so line DF or X is 14

can some one help me i have no idea how to do this

Answers

Answer:

k=-7

Step-by-step explanation:

Okay,

2/7k-3/8=-19/8

       +3/8 +3/8

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

   2/7k=   -2

   -------    -------

     2/7       2/7

k=-7

To check do 2/7(-7) -3/8

                         -2 -3/8

and u get -2 3/8 but then u do 8*2= -16+3= 19

Eloise plays soccer 2 5/6 hours on Friday and 3 3/6 hours on Saturday. How many hours does Eloise play soccer altogether?

Enter your answer as a mixed number in simplest form by filling in the boxes.

Answers

the answer in the simplest form as a mixed number is 6 1/3

Answer:

6 1/3

Step-by-step explanation:

5/6 +3/6= 8/6  8/6 = 1 2/6

3+2+1 =6

6 2/6 =6 1/3

The scatter plot shows a​ hiker's elevation above sea level during a hike from the base to the top of a mountain. The equation of a trend line for the​ hiker's elevation is y=7.52x​+649, where x represents the number of minutes and y represents the​ hiker's elevation in feet. Use the equation of the trend line to estimate the​ hiker's elevation after 170 minutes.

After 170 ​minutes, the​ hiker's elevation will be about _____ feet above sea level.

Answers

Answer:

2232 for 170 minutes

Step-by-step explanation:

help. PLEASE. (i suck at mathhh)

In a scale model of a roller coaster, the highest hill has a height of 6 inches. If the actual height of the hill is 210 feet, what is the scale of the model?
a.
2 in = 35 ft
c.
6 in = 35 ft
b.
1 in = 35 ft
d.
6 in = 210 ft


Please select the best answer from the choices provided

Answers

I would say B if you divide 210 by 6 you get 35 so just 1inch would =35

What is the perimeter of quadrilateral A' B' C' D'?

Explanation:
Quadrilateral A B C D is translated 2 units to the left and 5 units down to create quadrilateral A' B' C' D'.

Answers

Answer:

14.2 Units

Step-by-step explanation:

The second shape is given to confuse you and is not actually necessary.

To work out the perimeter of an irregular shape you simply add up the lengths of each side. The shape you have here is an irregular quadrilateral as it has four corners and no recognisable/coarrale organisation.

1.4units + 2.2units + 4.5units +6.1units = 14.2 units.

I hope this helps :)

Answer each question and explain your reasoning.

How long is 50% of 60 minutes?
How long is 10% of 60 minutes?
How long is 75% of 60 minutes?
Give me an actual explanation

Answers

Answer:

1. 30 mins

Step-by-step explanation:

1. 30 mins
2. 6 mins
3. 45 mins

Which property is illustrated by the statement 3 + 0 = 3?

Answers

The property illustrated is addition.

Answer: Identity Property

Step-by-step explanation: The identity property holds true for addition.

The statement 3 + 0 = 3 represents the identity property of addition.

The identity property of addition says that when we add 0

to any number, the sum is equal to the original number.

In general terms, we can write the identity property of addition

as a + 0 = a where a is a variable that represents any number.

find the equation of a line which has a slope of -9 and crosses the y axis at -7


(BRAINLIEST +10pts!!!)

Answers

Answer: y=-9x-7

Step-by-step explanation:

The formula  to write an equation in slope intercept  form is y=mx+b.

m is the slope, b is the y intercept.

m= -9

b= -7

y= -9x+-7, which simplifies to

y= -9x-7

Hope this helps :)) Also if i could get brainliiest id really appreciate it thanks! :D

quick
Use the reciprocal property to solve for x: 2 / 5 = 38 / x

Answers

95.
It would be 2x=38(5) and you get 95

Answer:

95

Step-by-step explanation:

Cross multiply

2x = 38 × 5

Simplify

2x = 190

Divide both sides by 2

X = 95

Distributiveproperty for -2(1/3x-1/5)

Answers

Answer:

-2(1/3x-1/5)  -2/3x+2/5

Step-by-step explanation:

You have to distribute, so u do -2 (1/3x) and get -2/3x then you do -2(-1/5) and get 2/5. Your answer would be -2/3x+2/5

Kevin is making a picture frame. He has a piece of trim that is 4 feet long.How many 14−inch-long pieces can Kevin cut from the trim?How much of a foot will he have left over?

Answers

First, convert 4 feet into inches - 48 inches. Then, divide 48 by 14 to get 3.43, so he can have 3 14-inch long pieces. To get the left over out of a foot, take 14 x 3 to get 42, then subtract 42 from your original 48 inches to get 6 inches left, which is half of a foot.

Answer:

3 pieces and 1/2 of a foot

Step-by-step explanation:

1. 4 feet converts to 48 inches. (4 X 12)

2. 48 inches divided by 14 can make three pieces

14+14+14=42 inches.

3. You will have 6 inches left over, and 6/12 is half of a foot :)

n an orchard, there are 13 apple trees, 21 orange trees, and a cherry tree. What is the ratio of orange trees to cherry trees?

Answers

Answer:

21 : 1

Step-by-step explanation:

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