Determine if 0.875 is rational or irrational and give a reason for your answer.

Answer:

4

Step-by-step explanation:

The scale factor from 3m to 9m is ×3

So do 12 / 3 = 4

Answer:

A

Step-by-step explanation:

P( music ) = number of students in music/ total number of students

P (music) = 4 / 14

= 2/7

Answer:1.9

Step-by-step explanation:

15/8=1.87500

Answer:

[tex]\frac{2}{8} <\frac{3}{4}[/tex]

Step-by-step explanation:

[tex]\frac{3}{4} =\frac{6}{8} \\[/tex]

therefore 3/4 will be greater than 2/8

Answer:

370 square millimeters

Step-by-step explanation:

2x9x5=90

2x10x5=100

2x10x9=180

90+100+180=370 square millimeters

Answer

450mm^3

Step-by-step explanation:

the picture has the workings

A=l×w×h

A=10mm×9mm×5mm

A=450mm^3

Answer:

X=-2, y=3

Step-by-step explanation:

Answer:

2/4 3/6

Step-by-step explanation:

any fraction where the numerator is half of the Denominator

Answer:

4 hrs

Step-by-step explanation:

22.8-17.6=5.2

so they are 5.2 miles apart.

Let they meet after t hrs.

distance coverd by Quico in t hrs=2.6t

distance covere by Chespirito in t hrs =3.9t

3.9t-2.6 t=5.2

or 1.3 t=5.2

t=5.2/1.3 =4

Answer:

each friend gets 0.1 fudge

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

Question is not clear. How many cups of water is required before you can make  1 batch of green slime?

Step-by-step explanation:

Answer:

Yes, one inch is a twlefth of a ft which is a porportion of a feet

Step-by-step explanation:

Answer:

okay sure Barnyst comingup

Step-by-step explanation:

Answer:

The volume is 588 ft³

Step-by-step explanation:

[tex]v = a {}^{2} \frac{h}{3} = 14 {}^{2} \times \frac{9}{3} = 588[/tex]

Answer:

254.6 ft3 F

Step-by-step explanation:

To find the volume of the pyramid, first calculate the area of the base.

As the pyramid is the regular triangular pyramid, the base is an equilateral triangle.

To find the area of the equilateral triangle, calculate the length of the height.

Since the triangle is equilateral, each angle in the triangle equals 60°.

The height forms a 30°- 60°- 90° triangle. One leg of this triangle is equal to half of the side of the large triangle, or 7 ft. The other leg of the triangle is equal to 73‾√ ft by the 30°- 60°- 90° Triangle Theorem.

Therefore, the length of the height of the triangle is 73‾√ ft.

To find the area of the base of the pyramid, B, use the formula for the area of a triangle, B=12bh.

Substitute 14 for b and 73‾√ for h.

B=12⋅14⋅73‾√

Simplify.

B=493‾√ ft2

To find the volume of the pyramid, use the formula for the volume of a pyramid, V=13Bh.

Substitute 493‾√ for B and 9 for h.

V=13⋅493‾√⋅9

Simplify.

V=1473‾√

Use a calculator to approximate.

V≈254.6 ft3

Therefore, the volume of the regular triangular pyramid is about 254.6 ft3.

Answer:

The answer is F

Step-by-step explanation:

Answer:

your answer will be option B. x²-2x-9

Step-by-step explanation:

5x²+4x-1+2x²+3+y=8x²+2x-7

7x²+4x+2+y=8x²+2x-7

y=8x²+2x-7-7x²-4x-2

y=x²-2x-9

hope it helps...

Answer:

B

Step-by-step explanation:

Answer:

-5<x<9

Step-by-step explanation:

Within a triangle, the greater an angle, the greater the length of opposite side. So, since we know that 42° gives an opposite side of 23, and (3x+15)° gives an opposite side of 21, (3x+15) must be less than 42:

3x+15<42

3x<27

x<9

We also know that the angle (3x+15)° cannot equal zero or less than zero. So find x when 3x+15=0, and note that our value for x must be greater than this:

3x+15=0

3x=-15

x=-5

so, -5<x

Put both parts together to get: -5<x<9

Answer:

The answer is d

Answer:

-8, -1.5, 1/2, 1/4, 1/2, 1, 2.5, 3

Step-by-step explanation:

Answer:

-8, -1.5 , -1/2 , 1/4 , 2.5, 3 , 11/2 (if is not 11/2 but 1  and 1/2) the answer is : -8, -1.5 , -1/2 , 1/4 , 1/2, 1 , 2.5, 3

Step-by-step explanation:

First of all we have to express the decimal numbers with a fraction

2.5 = 25/10 = 5/2

-1.5 = -15/10 = -3/2

now we have to express al numbers with a fraction with the same denominator. In this case the value that help us the most is 4

-1/2 = -2/4

5/2 = 10/4

-8 = -32/4

1/4 = 1/4

11/2 = 22/4

-3/2 = -6/4

3 = 12/4

now we have to check only the numerators for discover the order of the numbers. So from the least to the greatest we have:

-32/4 ; -6/4 ; -2/4 ; 1/4 ; 10/4 ; 12/4 ; 22/4

the final step is rewrite the original numbers in this order

-8, -1.5 , -1/2 , 1/4 , 2.5, 3 , 11/2

Answer:

M is (-7,3)

N is (0,1)

I think p is (4,0) but the option isn’t there so I must’ve done something wrong though I can’t find what-

Answer:

the volume of the cone is about 56.52

Step-by-step explanation:

the formula for the volume of the cone is πr^2(h/3), so if you plug in the numbers, you'll get about 56.52

Answer:

2.01) Multiply x by 3 and add 1 (x*3+1)

2.02) Add 7 to x (x+7)

Step-by-step explanation:

2.01:

2*3+1=7

4*3+1=13

6*3+1=19

8*3+1=25

2.02:

-2+7=5

0+7=7

2+7=9

Answer:

x=0

2(3x+12x)

FACTORED ANSWER

2(15)x)

Step-by-step explanation:

Answer:

[tex]x = 0[/tex]

Step-by-step explanation:

Factor 6x⋅2 out of 6x⋅2+24x.

[tex]6x \times (2(1 + 2)) = 0[/tex]

Multiply 2 by 6.

[tex]12x(1 + 2) = 0[/tex]

Add 1 and 2.

[tex]12x \times 3 = 0[/tex]

multiply 3 by 12.

[tex]36x = 0[/tex]

Divide each term by 36 and simplify.

[tex]x = 0[/tex]

therefor, the answer is 0.

No a polygon only has 3 sides and 3 angles.

Answer:

15

Step-by-step explanation:

5 + 10 = 15