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3 years ago

A2 + 2ab + b2-9 Pls help

Mathematics

2 answers:

Anarel [89]3 years ago

8 0

Answer:

(a + b + 3 ) ( a + b − 3 )

Step-by-step explanation:

valentinak56 [21]3 years ago

4 0

Answer:

${\huge{\mathfrak{\underbrace{\pink{Answer}}}}}$

I hope this helps you.....

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If r=20.5 and s=34.2 find S Round to the nearest tenth

astraxan [27]

Answer: option d

Step-by-step explanation:

Remember the identity:

$tan\alpha=\frac{opposite}{adjacent}$

The inverse of the tangent function is arctangent. You need to use this to calculate the angle "S":

$\alpha =arctan(\frac{opposite}{adjacent})$

Knowing that: you need to find the measure of the angle "S" , $r=20.5$ (which is the adjacent side) and $s=34.2$ (which is the opposite side), you can sustitute values into $\alpha =arctan(\frac{opposite}{adjacent})$

Then, you get that the measure of "S" rounded to the nearest tenth is:

$S=arctan(\frac{34.2}{20.5})\\\\S=59.1\°$

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3 years ago

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. A boat traveled 300 miles in 15 hours. What rate did the boat travel in miles per hour?

Gala2k [10]

Answer:

Step-by-step explanation:

divide 300 by 15 and there's your answer

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3 years ago

Please help me now please

ahrayia [7]

Answer:

A = 110 degrees.

Step-by-step explanation:

< A and < B are same side angles so their values add up to 180 degrees, so:

5x + 20 + 9x - 92 = 180

14x - 72 = 180

14x = 252

x = 18.

So m A = 5(18) + 20

= 110 DEGREES.

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3 years ago