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joja [24]
3 years ago
11

Please help urgent ! trig !

Mathematics
1 answer:
attashe74 [19]3 years ago
3 0

Answer:

Sin = 6/7

cos = sqrt(13)/7

sec = 7sqrt(13) / 13

Step-by-step explanation:

First find the unknown side length using the pythagorean theorem (it equals 3sqrt(13))

Sin is opposite over hypotenuse, so it would be 18/21 or 6/7

Cos is adjacent over hypotenuse, so it would be 3sqrt(13) / 21 or sqrt(13)/7

Sec is the reciprocal of the cos, so it would be 7/sqrt(13). However, the answer is 7sqrt(13)/13 because we rationalized our bases.

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Lynn has a watering can that holds 32 cups of water, and she fills it half full. Then she waters her 21 plants so that each plan
notka56 [123]

Amount of water Lynn's watering can can hold = 32 cups

As she fills it half full means she fills it with 32/2= 16 cups

Number of plants watered from 16 cups = 21 plants

As, each plant gets same amount of water, so each plant gets =

\frac{16}{21} cups or 0.76 cups of water

Hence, each plant gets 0.76 cups of water.

8 0
3 years ago
Which expression represents the calculation a (3x6)+5<br> B 6+(5x3) C 3+(6x5) D 3x(5+6)
Dahasolnce [82]

Answer:

<h2>D.</h2>

Step-by-step explanation:

<h2>BEACAUSE ITS FORMED PROPERLY</h2>
5 0
3 years ago
Allie bought some DVDs for $14.99 each. Which expression below represents Allie’s cost for d DVDs? A. 14.99 + d B. 14.99 + 14.99
topjm [15]

Answer:

D. 14.99d

Step-by-step explanation:

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4 0
3 years ago
Read 2 more answers
Need help on this please help
Lunna [17]

Answer:

B

Step-by-step explanation:

To solve just compute

πr²h

π49*4=615

7 0
3 years ago
Mo’s farm stand sold a total of 164 pounds of apples and peaches.she sold apples for $1.75 per pound and peaches for $2.50 per p
erastovalidia [21]
X pounds of apples were sold
Y pounds of peaches were sold
{1.75X+2.5Y=337.5
{X+Y=164

{X=164-Y
{1.75*(164-Y)+2.5Y=337.5

0.75Y=337.5-287
Y=67.333

There are 67.333 pounds of peaches were sold.

6 0
3 years ago
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