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2 years ago

Consider x+4=x+8. What values could be substituted for x to make this a true number sentence?

Mathematics

1 answer:

Schach [20]2 years ago

8 0

This looks unusual but let's try it.

x+4=x+8

Let's move the x vales to the left and numbers to the right.

x-x=8-4

0=-4

Hm. This doesn't work, does it?

This equation has no solution. If you believe you typed it wrong, correct it in the comment seciton.

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Width: x
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2(2x + 4) = 56
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Solution: the length is 16 inch

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Step-by-step explanation:

Given

Joe's lunch cost $13.00 without tax

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2 years ago

A chestnut falls out of a tree 45 feet above the ground. Use the vertical motion model, H=-16t^2+vt+s s to find how long it take

valentinak56 [21]

Answer:

1.7 seconds

Step-by-step explanation:

we have

$H=-16t^2+vt+s$

where

v is the initial velocity (in feet per second)

s represents the initial height (in feet)

In this problem we have

$v=0$ ---> because the object is dropped

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substitute

$H=-16t^2+45$

Remember that

When the chestnut hit the ground the value of H is equal to zero

For H=0

$-16t^2+45=0$

solve for t

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therefore

The solution is t=1.7 sec

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