40 points. Factor the following polynomial.

49y2 – x2
A.
(7y – x)(7y + x)
B.
(7y + x)2
C.
(7y – x)2
D.
does not factor

Answer:

Ur question? Itz incomplete

Answer:

option c is the correct answer

Answer:

i just need help pasing 5th grade can you help by giving me a link so i can get  answers to quistions pls

Step-by-step explanation:

Answer:

50.88

Step-by-step explanation:

The Answer is

50.88

Hope this helps!

Answer:

0, 6

Step-by-step explanation:

Answer:

How is this number written in scientific notation? A. 1.429 x 10.

The number 0.001429 is written in scientific notation as [tex]1.429*10^{-3}[/tex].

Here, the density of oxygen is 0.001429 grams per cubic centimeter.

What is scientific notation method?

Scientific notation is a way of writing very large or very small numbers.

A number is written in Scientific notation when a number between 1 and 10 is multiplied by a power of 10.

The value of 0.001429 in scientific notation is written as;

⇒[tex]0.001429 = 1.429*10^{-3}[/tex]

The number 0.001429 is written in scientific notation as [tex]1.429*10^{-3}[/tex].

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Answer:

125 units^3

Step-by-step explanation:

Volume is l*w*h = V. A cube has all equal sides so wecan divide 1000 by 3 and get our side lengths.

You then divide the sides by 2 because the question says the second cubes sides are half the size

5*5*5 = 125

The volume of the second cube is 125 units³.

In mathematics, ‘Volume’ is a mathematical quantity that shows the amount of three-dimensional space occupied by an object or a closed surface.

Given that a cube has volume 1000 units³ and another smaller cube has smaller volume has side only half as long.

We need to find the volume of the second cube,

So, let the side of the first cube be x,

We know that the volume of a cube = side³

Therefore,

x³ = 1000

x = ∛1000

x = 10 units

Therefore, the second cube will have a side of 10/2 = 5 units

Volume of second cube = 5³ = 125 units³.

Hence the volume of the second cube is 125 units³.

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Answer:

Middle answer is right

Step-by-step explanation:

The first answer is obliviously wrong so therefore it is the last two options

-(x+1)^2

= -(x^2+2x+1)

= -x^2-2x-1-3             (add the -3)

= x^2-2x-4

y intercept make x=0 therefore y=-4

AOS is x= -b/2a

x=2/2 which is 1

therefore it isthe middle answer

Answer:

the probability is 2/3

Step-by-step explanation:

the number should be greater than 2, so it should be 3, 4, 5, 6. the rate is 4 ÷ 6 is 2/3

Hope this will help❤️

Answer:

27

Step-by-step explanation:

maybe?

Answer:

486

Step-by-step explanation:

start by finding the area of 1 side

then you multiply it by 6 since a cube has 6 sides

Answer:

x = 51

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

x² = 45² + 24² = 2025 + 576 = 2601 ( take the square root of both sides )

x = [tex]\sqrt{2601}[/tex] = 51

Answer:

x = 51.

Step-by-step explanation:

The triple you require is 17-15-8

We have x-45-24

- that is three times each number in the triple.

So x = 3*17 = 51.

Answer:

a

Step-by-step explanation:

Given

u = (x₁, y₁, z₁ ) and v = (x₂, y₂, z₂ ) then the dot product is

u • v = (x₁ x₂ ) + (y₁ y₂ ) + (z₁ z₂ )

Then

v • w

= (5 × 9) + (- 4 × - 2) + (4 × 7)

= 45 + 8 + 28

= 81 → a

Answer:

5x

Step-by-step explanation:

5x + 20 - 20 = 5x

Answer:

Angle A = 30.8

Angle B = 33.2

Step-by-step explanation:

180 - 116 = 64  

This means that the other two angles need to add up to 64.

I just plugged in numbers until it worked.

I got that x = 14.6

2x + 4

2(14.6) + 4

29.2 + 4

33.2

3x - 13

3(14.6) - 13

43.8 - 13

30.8

Those are your angles. To make sure they are correct you just need to add up all the angles and make sure that they equal to 180.

116 + 33.2 + 30.8 =

180

Answer:

D

Step-by-step explanation:

the b value of mx+b is the y intercept which only moves up and down.

Answer:

105 sq ft.

Step-by-step explanation:

LA = slant height time perimeter of the base divided by 2.

Perimeter = 5(6) = 30

LA = 7(30)/2 = 105 sq ft.

Answer:

Joshua's account had a greater change.

Step-by-step explanation:

Both accounts had $100

Joshua's account now has $67.25 which means he used $32.75

Crystal's account now has $131.97 which means he saved $31.97.

Joshua had a greater change of balance.

Answer:

Should be <ABC = 25

degrees

Step-by-step explanation:

100 + 55 = 155

180 (Interior Angles of a Triangle Rule) - 155 = 25

Question complète:

150 garçons et 250 filles sont inscrits au conservatoire. 20% des garçons et 30% des filles sont pianistes. Calculer le pourcentage de pianistes au conservatoire

Répondre:

26,25%

Explication étape par étape:

Nombre de garçons = 150

Nombre de filles = 250

Pianiste masculin = 20% des garçons

Pianiste masculin = 0,2 * 150 = 30 garçons

Pianiste féminine: = 30% des filles

Pianiste féminine = 0,3 * 250 = 75 filles

Nombre total de pianistes:

(30 + 75) = 105 pianiste

Population du conservatoire = (150 + 250) = 400

Pourcentage de pianiste:

105/400 * 100%

0,2625 * 100%

26,25%

Answer:

It is the forth one

Step-by-step explanation:

to long to explain

Answer:

Step-by-step explanation:

Number 4

Answer:

95 passengers :) brainliest pls!

Step-by-step explanation:

2/5 = 0.4,

0.4*150 = 60,

60+35 = 95.

Answer:

-3.5 meters per second

Step-by-step explanation:

got it right on iready lol

Answer:

-3.5 meters

Step-by-step explanation:

Answer:

933mounths=77years and 9 mounts

Answer:

[tex]77\frac{3}{4}[/tex] years = 933 months

77.75 years = 933 months

Step-by-step explanation:

1 year = 12 months

y = 933 months

[tex]\frac{1}{12}= \frac{y}{933}[/tex]

12 × y = 933 × 1

12y = 933

12y ÷ 12 = 933 ÷ 12

y = 77.75

Answer:

8

Step-by-step explanation:

To find the median, look at the line in the box. it lines up with 8 on the number line. Therefore, 8 is the median.

Answer:

Half of 8 is 4 and one third of 12 is 4

Step-by-step explanation:

I hope I answered your question