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nika2105 [10]
2 years ago
7

A runner increases his velocity from 0 m/s to 20 m/s in 2.0 s. What was his average acceleration?

Mathematics
1 answer:
goblinko [34]2 years ago
7 0

Answer:

a =  \frac{dv}{dt }  =  \frac{20 - 0}{2}  = 10

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What is the value of the expression 4⁴?​
Ghella [55]

Answer:

256 is the answer

Step-by-step explanation:

4×4×4×4=256.

3 0
3 years ago
If B is the midpoint of AC and AB = 4x + 14 and BC = x + 20, determine how long AC is.
Serhud [2]

Answer:

44 units

Step-by-step explanation:

Since B is the mid-point of AC

AB=BC

or,4x+14=x+20

or, 4x-x=20-14

or 3x=6

or,x=6/3=2

AC=AB+BC

= 4x+14+x+20

= 4(2) + 14 +2 +20

= 8+14+22

=44 units

5 0
3 years ago
Read 2 more answers
The price of a set of plates is $36 plus 8% sales tax. What is the sales tax on the set of plates in dollars and cents?
Tamiku [17]

Answer:

$2.88

Step-by-step explanation:

36 times .08 = 2.88

3 0
3 years ago
The length of a rectangle is one more that three times its width. If the perimeter is 42 inches, find the dimensions of the rect
Liono4ka [1.6K]
Let w=width
L= length
3w+1=l
Perimeter -2(l+w)
2(W+3w+1)=42
Divide both sides by 2
W+3w+1=21
Subtract 1
W+3w=20
Add like terms
4w=20
Divide both sides by 4
W=5
The width is 5 inches

3w+1=l
Input the width into the equation
3(5)+1=l
15+1=l
16=l
The length of the rectangle is 16 inches

The rectangle is 5 x 16 inches
6 0
3 years ago
Someone help me do the first problem so that I can do the rest
Novay_Z [31]

Answer:

C = 69.1 ft

Step-by-step explanation:

The circumference is given by

C = 2*pi*r

C = 2* 3.14 * 11

C =69.08

Round to the nearest tenth

C = 69.1 ft

7 0
3 years ago
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