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3 years ago

A 20-inch bicycle has tires with a diameter of 20 inches. What is the circumference of these tires?

Mathematics

1 answer:

juin [17]3 years ago

4 0

Answer:

$circumference = \pi \: d \\ = 3.14 \times 20 \\ = 62.8 \: inches$

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The student council needs to make a banner for the seventh-grade dance. The dance committee decides that the length of the banne

tigry1 [53]

Answer: Choice A) at most 2.5 ft wide

Work Shown:

16w ≤ 40

w ≤ 40/16

w ≤ 2.5

This says that the banner must be at most 2.5 ft wide (choice A)

In other words, the largest the width can get is w = 2.5; we can think of this as the ceiling value.

6 0

3 years ago

I need some help, please

shtirl [24]

Answer:

I hope this helps!

5 0

3 years ago

7y=3x−7 Complete the missing value in the solution to the equation. (1, )

bija089 [108]

Plug 1 in for x to get 7y=3(1)-7

7y=-4
y=-4/7

7 0

3 years ago

Read 2 more answers

Question 1: The diagonal of a rectangle, with base x, remains at a fixed

kramer

We have that The height changing rate when the length of the base is 2 cm

$dh/dt=-7.2cm/s$

From the question we are told

The diagonal of a rectangle, with base x, remains at a fixed value of 3cm. If the base is increasing at a rate of 8 cm/s. at what rate is the height changing when the length of the base is 2 cm?

Generally the Pythagoras equation for the triangle is mathematically given

$r^2=h^2+x^2$

With r=3

Therefore

dx/dt=8cm/s

Hence

$2rdr/dt=2hdh/dt+2xdx/dt\\\\\dh/dt=\frac{-x}{r^2-x^2}dx/dt$

We have

$dh/dt=-2/\sqrt{5}(8)\\\\dh/dt=-7.2cm/s$

Therefore

The height changing rate when the length of the base is 2 cm

$dh/dt=-7.2cm/s$

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4 0

3 years ago

What is ordered pair?

lions [1.4K]

12y - 7x = 5......(1 , ?)....when x = 1....so we sub 1 in for x
12y - 7(1) = 5
12y - 7 = 5
12y = 5 + 7
12y = 12
y = 12/12
y = 1........so ur y value is 1....and ur ordered pair is (1,1) <==

3 0

3 years ago