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Ghella [55]
3 years ago
6

If you know that 4 times 5 equals 20 how can you use the commutave property of multiplication to find 5 x 4

Mathematics
1 answer:
const2013 [10]3 years ago
8 0
Yes, because you can multiply<span> the numbers. Example: </span>Use commutative property <span>of </span>multiplication<span> to rewrite </span>5 x 4 5 x 4<span> Answer: </span>4<span> x </span>5<span>. </span>
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Please help screen shot bellow.
Goshia [24]

-1/4

This will remain its absolute value

8 0
2 years ago
Read 2 more answers
3. The formula to find the surface area of a sphere is to take the radius of the sphere and square it and multiply that amount b
KatRina [158]
The way to get the equation for the radius (r) is to get r by itself. So divide each side by 4pi
500/4pi=r^2
Now take the square root of each side to get the equation of r.
sqrt(500/4pi)=r
6 0
3 years ago
Read 2 more answers
The equation $y=-4.9t^2+3.5t+5$ describes the height (in meters) of a ball thrown upward at $3.5$ meters per second from $5$ met
Georgia [21]

Answer:

Step-by-step explanation:

The position function is

s(t)=-4.9t^2+3.5t+5 and if we are looking for the time t it takes for the ball to hit the ground, we are looking for the height of the ball when it is on the ground. Of course the height of anything on the ground is 0, so if we set s(t) = 0 and solve for t, we will find our answer.

0=-4.9t^2+3.5t+5 and factor that however you are currently factoring in class to get that

t = -.71428 seconds or

t = 1.42857 seconds (neither one of those is rational so they can't be expressed as fractions).

We all know that time will never be a negative value, so the time it takes this ball to hit the ground is

1.42857 seconds (round how you need to).

4 0
2 years ago
What is the volume of a square pyramid with base edges of 60 inches and a height of 10 inches?
vichka [17]

Answer:

The volume is 12000 in^3

Step-by-step explanation:

From the question ,

L= 60\:in. and H=10\:in.

The volume of a pyramid is given as

V=\frac{1}{3} \times area\:of\:the\:base \times height

From the question, the base of the pyramid is a square.

Hence base area is given by L^{2}

This implies that the volume of the pyramid is

=\frac{1}{3} \times L^{2}\times H

=\frac{1}{3}\times 60^{2} \times 10

=\frac{36000}{3}

=12000 in^3

6 0
2 years ago
Jacob is 3 years younger than his friend Noah. Noah is x years old.
irinina [24]

Answer:

x + 4  

Step-by-step explanation:

Noah's age = x

Jacob's age = x – 3

In seven years,

Jacob's age = x – 3 + 7

Jacob's age = x + 4

5 0
2 years ago
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