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3 years ago

Earned 60 points on his last test if there were 75 possible points what was his percent grade ?

Mathematics

1 answer:

Tresset [83]3 years ago

4 0

Answer:

80%

Step-by-step explanation:

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Please help. I don’t know the answer.

atroni [7]

(y^12)/5

9/45=1/5
x^5/x^5=1
y^16/y^4=y^12

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3 years ago

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Can a triangle with side lengths of 8, 15, and 17 be a right triangle?

Nookie1986 [14]

Yes it is.
Glad to help!

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3 years ago

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Complete the statements.

spayn [35]

Answer:

1. 30

2. 150

Step-by-step explanation:

$3tan^2(x)-1 =0$

Lets assume tan(x) = u

$3u^2(x)-1 =0$

Now we solve for 'u'

add 1 on both sides

$3u^2(x) =1$ , divide both sides by 3

$u^2 = \frac{1}{3}$

Take square root on both sides

$u = +-\frac{1}{\sqrt{3} }$

We replace tan(x) for 'u'

$tan(x) = +-\frac{1}{\sqrt{3} }$

x = 30 because $tan(30) =+\frac{1}{\sqrt{3} }$ in first quadrant

x = 30 (tan is positive in first quadrant)

$tan(x) =-\frac{1}{\sqrt{3} }$

x = 150 because $tan(150) =-\frac{1}{\sqrt{3} }$ in second quadrant

tan is negative in second quadrant

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3 years ago

3(x-7)+8=-20<br><br><br><br>can someone explain how to do this step by step

Mrrafil [7]

3(x-7)+8=-20

Multiply the bracket by 3

(3)(x)(3(-7)+8= -20

3x-21+8= -20

3x-13= -20

Move -13 to the other side. Sign changes from -13 to +13.

3x-13+13= -20+13

3x= -7

Divide by 3

3x/3= -7/3

x= -7/3 or in mixed number : -2 1/3

Answer : x= -7/3 or in mixed number : -2 1/3

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4 years ago

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Pythagorean theorem digital escape can you find the length and area and type the correct code?

lara31 [8.8K]

Answer:

13825

Step-by-step explanation:

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2 years ago