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r-ruslan [8.4K]
3 years ago
11

If you add or subtract two rational numbers, is the result sometimes, always, or never rational?

Mathematics
1 answer:
lawyer [7]3 years ago
8 0

Answer:

Always

Step-by-step explanation:

8 - 9 = -1

1/3 - 1/6 = 1/6   are 2 examples

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Chanel is going to paint a chervron design on her wall using the template. She will need to paint 50 of the templates. How many
sashaice [31]

Answer:

350 in²

Step-by-step explanation:

Assuming the solid likes are the design. So we see two parallelograms there.

Area of 1 parallelogram = base x height. Since we have a joint height, we will multiply the total height with the base (both have the same base length) to get the area of 1 design.

1 design = 3.5 x 2 = 7 in²

50 designs = 7 x 50 = 350 in²

8 0
3 years ago
1. A single scoop ice cream cone is made up of a cone filled with ice cream and a half
tatiyna

Answer:

2.515

Step-by-step explanation:

1. First you add the equation for a cone and a half sphere

(1/3*pi*r^2*h)+(1/2*4/3*pi*r^3)

2. You replace h with 2*r2 because height is 2*Diameter

(1/3*pi*r^2*r2)+(1/2*4/3*pi*r^3)

3. You make the equation equal 100

(1/3*pi*r^2*r2)+(1/2*4/3*pi*r^3)=100

4. Solve for

r=2.515

8 0
3 years ago
Solve for u
Sergio039 [100]
U/9 = 8/12 u = 6

Step 1: Cancel the common factor (4)

u = 2
—- —-
9 3


Step 2: multiply both sides by 9


9u 2 * 9
—- = ——-
9 3

Step 3: simplify

2 *9 = 18

18 ÷ 3 = 6

u = 6
8 0
2 years ago
Write the equation in slope-intercept form of the line perpendicular to y =
kifflom [539]

Answer:

y=2x squared -3x-62

Step-by-step explanation:

6 0
3 years ago
How many years will it take for $2000 to double at a simple interest rate of 8%? Explain how you found your answer​
Luda [366]

maybe a hundred or a thousand years idk so maybe 500 i dont actually know

8 0
2 years ago
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