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2 years ago

Help please this makes no sense

Mathematics

1 answer:

Degger [83]2 years ago

5 0

Answer:

ST = 7.1 in

Step-by-step explanation:

we can use SOH-CAH-TOA because we've got a right triangle

side ST would be 'adjacent'

side TU would be the 'hypotenuse'

so we use Cosine because that's used when you're dealing with adjacent and hypotenuse:

cos 42° = ST/9.5

ST = cos 42° × 9.5

ST = 7.1

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What is 345 2/5 x 14 3/5

defon

Answer:

Exact Form:

126071/25

Decimal Form:

5042.84

Mixed Number Form:

5042 21/25

I hope that helped at all.

5 0

3 years ago

Read 2 more answers

A)0.76×0.004 b)0.078÷0.5 c)0.834+0.79 d)0.0034-0.0078

e-lub [12.9K]

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3 0

3 years ago

Please help! Use the Law of Cosines to find the values of x and y.

Romashka [77]

Answer:

x = 8.39

y = 55.2

Step-by-step explanation:

9² + 1² - 2(9)(1)cos(50) = x²

x = 8.39

9/sin(y) = x/sin(50)

sin(y) = 0.8215200692

y = 55.23724927

8 0

3 years ago

Enter the value 2(4x+3) when x=3

Zinaida [17]

Answer:

Step-by-step explanation:

8 0

3 years ago

June had an equal lengths of yellow and green ribbons. After using 30cm of yellow ribbon and 3.3m of green ribbon,the remaining

Ratling [72]

Answer:

4.05 meters or 405 cm

Step-by-step explanation:

The equation to use is

(x - 330) x 5 = x - 30

330 is equal to 3.30 meters.

Then solve the equation.

(X - 330) x 5 = x - 30

5x - 1650 = x - 30

-x

4x - 1650 = -30

+1650 + 1650

4x = 1620

/4 /4

X = 405cm

7 0

3 years ago