3 years ago

One solution to the problem below is 7. What is the other solution? M^2-49=0

Mathematics

1 answer:

ASHA 777 [7]3 years ago

4 0

(X-7)(x+7)
Set each equal to zero

X-7=0 X+7=0
X=7 X=-7

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–4.5t49.5t = 40 Please help

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Answer:

t= -0.18

Step-by-step explanation:

Isolate t to get the unknown number:

(-4.5t)(49.5t) = 40

Multiply (-4.5t)(49.5t):

(-4.5t)(49.5t) = -222.75t

Now, write full equation:

-222.75t = 40

Isolate t by dividing -222.75 on both sides:

$\frac{-222.75}{-222.75}t=\frac{40}{-222.75}$

Cancel out left hand side:

$t=\frac{40}{-222.75}$

Simplify your answer:

$t=-0.17957351$

Approximate to 2 decimals:

$t=-0.18$

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