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2 years ago

8

Please help me plzzzzzzzzzzzzz

1 answer:

Stels [109]2 years ago

4 0

Which question is it? 20?

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The base of a lampshade is in the

tekilochka [14]

This whole problem is only about a circle. Let's not get confused by the rest of the lampshade.

The circumference of any circle is (pi) times (the diameter) .

For this circle, it's (pi) times (13 cm).

They told us what to use for (pi), so it's (3.14) x (13 cm) = <u>40.82 cm</u>

and that's all there is to it.

5 0

2 years ago

What is the product of the expression (-2.2)(1.5)(-4.2)

Nataliya [291]

Answer:

13.86

Step-by-step explanation:

(-2.2)(1.5)(-4.2) =

Use a calculator. Start with -2.2 * 1.5.

= (-3.3)(-4.2)

= 13.86

8 0

3 years ago

Read 2 more answers

Consider the function f: {(0, 2), (2, 6), (1, 3), (-1, 3), (-4, 18)} what is f (-1)?

SOVA2 [1]

$f( - 1) = 3$

5 0

3 years ago

The volume of a cube is 216mm3.What is the length of its side?

Studentka2010 [4]

Steps:
216 mm3 is the volume.

Given the volume, you can take the cube root of the volume to find the side.
The cube root of 216 is 6.

Answer: 6

8 0

2 years ago

David hikes 21/4 miles in 1/2 an hour. What is his rate in miles per hour? At this rate, how long will it take him to walk 18 mi

harkovskaia [24]

Answer:

A) speed = 10.5 miles per hour

B) Time taken by him = 1.714 hours

C) Distance = 10.5 mph × 7 hours = 73.5 miles

Step-by-step explanation:

Given as :

The distance cover by David = $\frac{21}{4}$ miles = 5.25 miles

The time taken by David = $\frac{1}{2}$ hours = 0.5 hours

Let the speed = x mile per hour

So, Distance = Speed × Time

A)or, Speed = $\frac{Distance}{Time}$

Or, Speed = $\frac{5.25}{0.5}$

∴ speed = 10.5 miles per hour

<u>B) Again The Distance cover by him = 18 miles</u>

SO, with speed 10.5 miles per hour

The Time taken by him = $\frac{Distance}{speed}$ hours

Or, Time taken by him = $\frac{18}{10.5}$ hours

∴ Time taken by him = 1.714 hours

<u>C) Again the Time taken by him = 7 hours </u>

So, Distance cover by him with speed 10.5 mph

Or, Distance = 10.5 mph × 7 hours = 73.5 miles

A) speed = 10.5 miles per hour

B) Time taken by him = 1.714 hours

C) Distance = 10.5 mph × 7 hours = 73.5 miles Answes

8 0

3 years ago