2 years ago

Formula for a prism i am in need of help please help me

Mathematics

1 answer:

LenaWriter [7]2 years ago

4 0

V=1/2a*c*h this is to solve the volume of a prism

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The price of a cup coffee was 2.40 yesterday. Today, the price fell to 2.15 find the percentage decrease. Round the answer to th

irakobra [83]

ANSWER

The percentage decrease is 10.4%.

EXPLANATION

To calculate percentage decrease, use the formula,

Percentage decrease

$= \frac{new \: price - old \: price}{old \: price} \times 100\%$

Yesterday the price of coffee was 2.40. This is the old price.

Today the price is 2.15. This is the new price.

$= \frac{2.15 - 2.40}{2.40} \times 100\%$

$= \frac{ - 0.25}{2.40} \times 100\%$

$= - 0. 10416667 \times 100\%$

$= - 10.416667\%$

To the nearest tenth, we have:

$- 10.4\%$

Therefore the percentage decrease is 10.4%.

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2 years ago

A and B are complementary. If B = 26°, what is the measure of A?

Talja [164]

Answer:

64°

Step-by-step explanation:

When angles are complementary, they can be added together to equal 90°.

90° - 26° = 64°

The measure of angle A is 64°.

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1 year ago

There are 158 birds on the endangered species list in some year. this is 16 more than twice the number of reptiles on the list.

S_A_V [24]

Let the number of reptiles on endangered list be 'x'

2x + 16=158

2x=158-16

2x=142

x=71

So there are 71 reptiles on the endangered list

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2 years ago

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Answer:

Step-by-step explanation:

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2 years ago

F(x)=5x+7 and g(x)=2x+3 find a) `(f+g)(x)` b) `(f-g)(x)`

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X + 1 by x = 99 find the value of 100x by 2x square + 102x + 2

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2 years ago

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