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3 years ago

12

PLS HELP IM DOING A TIMED QUIZ

1 answer:

Bond [772]3 years ago

6 0

Answer:

30.3

Step-by-step explanation:

24 + (12.56637/2)

24 + 6.283185

30.283185

30.3 rounded to the nearest tenth

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PLZ HELP URGENT!!! DUE TOMORROW

ladessa [460]

Answer:

a2 + b2 + 2ab

x2 + y2 + z2 + 2xy + 2yz + 2xz

p2 + q2 + 2pq

5 0

3 years ago

Which is the solution set of the compound inequality 3.5 x -10> -3 and 8x -9 <39

aivan3 [116]

3.5x-10>-3 add 10 to both sides

3.5x>13 divide both sides by 3.5

x>26/7

x=(26/7, +oo)

...

8x-9<39 add 9 to both sides

8x<48 divide both sides by 8

x<6

x=(-oo,6)

Since this is a compound inequality with AND the solution set will be the union of the two intervals found above.

x=(26/7, 6)

7 0

3 years ago

Read 2 more answers

Ayuda necesito la respuesta y también procedimiento

Vinvika [58]

Yfuubyckkftkf ay ta denada

7 0

2 years ago

The hidden question the sum of three different numbers is 18. If every number is a prime number, what are the three numbers

sashaice [31]

5, 11 and 2 are all prime numbers which add together to create 18.
5+11=16+2=18

3 0

3 years ago

Read 2 more answers

A ball is tossed between three friends. The first toss is 8.6 feet, the second is 5.8 feet, and the third toss is 7.5 feet, whic

Rainbow [258]

angles formed by these tosses are $79.45, 59.02$ and $41.53$ degrees to the nearest hundredth.

<u>Step-by-step explanation:</u>

Here , We have a triangle with sides of length 8.6 feet, 5.8 feet and 7.5 feet.

The Law of Cosines (also called the Cosine Rule) says:

$c^2 = a^2 + b^2 - 2ab (cosx)$

Using the Cosine Rule to find the measure of the angle opposite the side of length 8.6 feet:

⇒ $c^2 = a^2 + b^2 - 2ab (cosx)$

⇒ $c^2 -a^2 - b^2 = -2ab (cosx)$

⇒ $(cosx) =\frac{ c^2 -a^2 - b^2}{ -2ab}$

⇒ $(cosx) =\frac{(8.6^2 - 5.8^2 - 7.5^2)}{ ( -2(5.8)7.5)}$

⇒ $(cosx) =0.18310$

⇒ $cos^{-1}(cosx) = cos^{-1}(0.18310)$

⇒ $x = 79.45$

The Law of Sines (or Sine Rule) is very useful for solving triangles:

$\frac{a}{sin A} = \frac{ b}{sin B} = \frac{c}{sin C}$

We can now find another angle using the sine rule:

⇒ $\frac{ 8.6 }{ sin 79.45} = \frac{7.5}{ sin Y}$

⇒ $sin Y = \frac{(7.5 (sin 79.45))}{ 8.6}$

⇒ $Y = 59.02 degrees$

So, the third angle = $180 - 79.45 - 59.02 = 41.53 degrees.$

Therefore, angles formed by these tosses are $79.45, 59.02$ and $41.53$ degrees to the nearest hundredth.

4 0

3 years ago