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serious [3.7K]
3 years ago
13

Algebra- pls help ;-; will mark brainliest

Mathematics
2 answers:
Pavlova-9 [17]3 years ago
7 0

Answer:

The solution is correct.

Sergio [31]3 years ago
6 0

Answer:

r = 9 is the correct solution..

the error was in the 2nd line where it should be -10+2r=8 instead of -10-2r=8

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PLEASE ANSWER FAST!!!!! 40 POINTS!!!!
Alex17521 [72]

Answer:

+2

Step-by-step explanation:

Plus cancels minus

There are 4+ and 2 minus

+4 -2 = +2

The result is +2

5 0
2 years ago
Read 2 more answers
Triangle ABC is similar to triangle QRS by the AA Similarity Postulate. Also, m∠A = 72° and m∠S = 56°. What is m∠B?
White raven [17]

∠B = 52°

Since the triangles are similar then

∠C = ∠S = 56°

∠B = 180° - (72 + 56)° = 52°


7 0
4 years ago
I really need help on thisss
attashe74 [19]

Answer:

77 in ^2 is the best estimate

Step-by-step explanation:

We can get the total area from the sum of the triangle and the semi circle

semicircle

1/2 the area of the semicircle

A = 1/2  pi r^2

   1/2 (3.14) ( 4^2)

    25.12

Now find the area of the triangle

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The height is 8

A = 1/2 bh

   = 1/2 (8) (12)

   = 48

The total area is 25.12+48 =73.12      

7 0
4 years ago
Fill in the blank. In the triangle below, z=
My name is Ann [436]

Answer:

z = 38

Step-by-step explanation:

The sum of the angles of a triangle add to 180

z+ 90+52 = 180

Combine like terms

z +142 = 180

Subtract 142 from each side

z+142-142 = 180-142

z =38

4 0
4 years ago
If I have 3 shoes, 9 Blouses, 8 pants, 11 belts. How many different kind of outfits can I make
Oduvanchick [21]
Well you can make more than 8
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3 years ago
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