2 years ago

A,B and C are coplanar.truefalse

Mathematics

2 answers:

Yuri [45]2 years ago

8 0

Fasle false false false false

12345 [234]2 years ago

5 0

Answer:

Step-by-step explanation:

is TRUE

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If an object is dropped from a height of 144 feet, the function h(t)=-16t^2+144 gives the height of the object after t seconds.

shtirl [24]

Answer:

A. 3s

Step-by-step explanation:

The height of the object after t seconds is given by:

$h(t) = -16t^2 + 144$

When will the object hit the ground?

It hits the ground after t seconds, and t is found when $h(t) = 0$ . So

$h(t) = -16t^2 + 144$

$0 = -16t^2 + 144$

$16t^2 = 144$

$t^2 = \frac{144}{16}$

$t^2 = 9$

$t = \sqrt{9}$

$t = 3$

3 seconds, so the correct answer is given by option a.

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2 years ago

Josh earned $80 to use for back-to-school shopping. So far he has spent $24 on a backpack and $32 on new shoes. Think abt the yo

Lady_Fox [76]

Answer:

24$

Step-by-step explanation:

$80 - $32 - $24 = $24

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2 years ago

Quadrilateral EFGH was dilated by a factor of 3. What is FG F'G'

Nikolay [14]

The coordinates would be multiplied by 3, as the scale factor is 3, and it is a dilation, so we know the size increases.

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3 years ago

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A company produces and sells CDs. There is a fixed cost of $2000 and $5 per CD manufactured. The manufacturer sells each CD for

OlgaM077 [116]

Call the production cost 'C', the revenue 'R' and the number of CDs 'n':

C=2000+5n
R=10n
By definition Profit P = R-C, therefore P=10n-2000+5n = 5n-2000.

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3 years ago

rachel owns a cupcake shop. last week she used 42.5 pounds of sugar making cupcakes. this week she used 26 pounds of sugar. find

Paha777 [63]

Answer:

decreased by 39%

Step-by-step explanation:

deacreased by

42.5-26= 16.5

16.5÷42.5=38.82352941

rounded to 39%

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2 years ago