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2 years ago

What is the number 39.90rounded off to one decimalPlace.

Mathematics

2 answers:

OLga [1]2 years ago

3 0

Answer:

39.9

Step-by-step explanation:

butalik [34]2 years ago

3 0

Answer:

Step-by-step explanation:

39.90, the 9 is higher than five so you would add one to the 9 making it 40

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3 years ago

Find c.

Anika [276]

Answer:

9.7cm

Step-by-step explanation

According to the sine rule;

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Step-by-step explanation:

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7 0

3 years ago

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SOLUTION: a diver jumps from a diving board that is 24 feet above the water. the height of the diver is given by h= -16(t-1.5)(t

lara [203]

Answer:

The diver will hit the water at 1.5 seconds

Step-by-step explanation:

Given

$h= -16(t-1.5)(t+1)$

Required (Missing from the question)

When will the diver hit the water?

To do this, we simply solve for t

When the diver hits the water, the height is 0 (at that point)

So, substitute 0 for h in $h= -16(t-1.5)(t+1)$

$0= -16(t-1.5)(t+1)$

Divide both sides by -16

$\frac{0}{-16} =\frac{-16(t-1.5)(t+1)}{-16}$

$\frac{0}{-16} =(t-1.5)(t+1)$

$0 =(t-1.5)(t+1)$

$(t-1.5)(t+1)=0$

Split

$t - 1.5 = 0$ or $t + 1 = 0$

Solve for t

$t = 1.5$ or $t = -1$

But time (t) can not be negative.

So:

$t = 1.5$

Hence, the diver will hit the water at 1.5 seconds

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3 years ago

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3 years ago

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What is the number 39.90rounded off to one decimalPlace.​

What is the number 39.90rounded off to one decimalPlace.