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Delvig [45]
2 years ago
10

9 + b = -12 q+ (-9) = 12

Mathematics
1 answer:
sertanlavr [38]2 years ago
4 0
Subtract 9 from both sides

b = -12 - 9

simplify -12 - 9 

Answer: b = -21

9 + -21 = -12 is true.

simplify brackets

simplify q + -9 to q - 9

add 9 to both sides

simplify 12 + 9 to 21

q = 21

21 + -9 = 12 is true.
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ELEN [110]
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7 0
2 years ago
You are standing on a small fire tower 50 feet from a tree. You notice a squirrel in the tree. You measure the angle of depressi
irina [24]

Answer:

44.81 feet

Step-by-step explanation:

see the attached figure to better understand the problem

step 1

In the right triangle ACD

Find the length side AC (height of the small fire tower)

tan(52^o)=\frac{AC}{50} ---> by TOA (opposite side divided by the adjacent side)

Solve for AC

AC=tan(52^o){50}

AC=64\ ft

step 2

In the right triangle ABE

Find the length side AB

tan(21^o)=\frac{AB}{50} ---> by TOA (opposite side divided by the adjacent side)

solve for AB

AB=tan(21^o){50}

AB=19.19\ ft

step 3

How many feet off the ground is the squirrel?

Subtract the length side segment AB from the length side segment AC

so

64-19.19=44.81\ ft

5 0
2 years ago
John jogs 30miles every week .there are 52 weeks in a year. How many miles does john jog in a year?
tia_tia [17]

Answer:

John would be running 1560 miles in a year

8 0
2 years ago
Read 2 more answers
Ayayayayauauauaua help
Cerrena [4.2K]

Answer:

I cant do them all for you, but essentially every equation there is an a, plug in 10 for a. Every equation  with b, plug in 9 and every equation with c plug in 4. Then Solve/simplify

Step-by-step explanation:

5 0
3 years ago
Kinda stuck and would like help
Stella [2.4K]
Answer: See below

Explanation:

8x + 14 = 10x - 10 (alt. exterior angle)
8x - 10x = -10 - 14
-2x = -24
x = -24/-2
x = 12

Now plug x = 12 in 10x - 10 to find the angle:

10(12) - 10 = 120 - 10 = 110 degree
6 0
3 years ago
Read 2 more answers
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