Help needed with these for problems

1 answer:

4 0

I can't read the first one and I also don't know

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marin [14]

Answer:

$3 {x}^{2} = 147 \\ or \: x^{2} = \frac{147}{3} \\ or \: x = \sqrt{49} \\ x = 7$

5 0

2 years ago

USPshnik [31]

C = pi * d
a = pi * (d/2)^2

4 0

3 years ago

allochka39001 [22]

1.6 min. per lap
All you have to do is divide 20 by 12.5

6 0

3 years ago

pashok25 [27]

149 will be rounded to 150 so 150×5= 750

4 0

3 years ago

NikAS [45]

Answer:

Tan B = 12/5

Sin B = 12/13

Cos B = 5/13

Step-by-step explanation:

sine B = opposite (12)/hypotenuse (13)

= 12/13

Cosine B = adjacent/hypotenuse

= 5/13

Tangent B = opposite/adjacent

= 12/5

Here is a picture that can always help you with the three trig ratios.

3 0

3 years ago