1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
uranmaximum [27]
3 years ago
14

Need help i don’t know what the answer is

Mathematics
2 answers:
Romashka-Z-Leto [24]3 years ago
4 0

Answer:

r = 5

Step-by-step explanation:

(r + 8)^2 = r^2 + 12^2

r^2 + 16r + 64 = r^2 + 144

16r = 80

r = 5

Rashid [163]3 years ago
3 0

Answer:

r = 5

Step-by-step explanation:

Using Pythagoras' identity in the right triangle ABC

AC² = BC² + AB²

(r + 8)² = r² + 12² ← expand left side using FOIL

r² + 16r + 64 = r² + 144 ( subtract r² from both sides )

16r + 64 = 144 ( subtract 64 from both sides )

16r = 80 ( divide both sides by 16 )

r = 5

You might be interested in
For each right triangle below, find all unknown side lengths and angle measures:
vlabodo [156]

Answer:

10.

here,

h=c

b=5

p=12

,we know that,

h²=b²+p²(pythagoras theorum )

c=5²+12²

c=25+144

c=169

hence the value of c is 169.

6 0
3 years ago
Write point-slope form of the line through points (3,-5) and (-5,-5)
ratelena [41]
Y-5=-2(x-3)


The formula is y-y1=m(x-x1)
1. Find the slope
2. Replace y1 & x1 with the first point
8 0
3 years ago
Solve C = 2Pi r for r .
Cerrena [4.2K]

Answer:

D

Step-by-step explanation:

Given

C = 2πr ( isolate r by dividing both sides by 2π )

\frac{C}{2\pi } = r → D

6 0
3 years ago
Hellpppp pleasssssssssssse!!!!!!!!!! WILL GIVE BRAINLIEST!!!!!!
Sati [7]
Slope = 70,000
point: (8,2000000)
Form: y = mx + b
2000000 = 70,000*8 + b
b = 3.57
EQUATION:
Profit = 70,000(year after 1990) + 3.57
5 0
3 years ago
Read 2 more answers
What is the solution to the system of equations?
Umnica [9.8K]

Answer:

No solution

Step-by-step explanation:

from the second equation x = -8 + 2y

By substituting in the first equation 4(-8 + 2y) -8y = -16

-32 +8y -8y = -16

-32 = -16

the left hand side not equal the write and side

So there is no solution for the system of equations

means the two lines are parallel

6 0
3 years ago
Other questions:
  • Is this equation a monomial, binomial or a trinomial.
    14·1 answer
  • Find x. Round your answer to the nearest tenth of a degree.
    6·2 answers
  • How to set up this problem
    7·1 answer
  • What is 2.43 as a percentage?
    7·1 answer
  • Instructions:Select the correct answer.
    6·1 answer
  • Estimate the sum or difference 1/2 - 1/3
    6·2 answers
  • Simplify the expression. 7(3x + 5y) + 4y
    12·1 answer
  • (05.02)One triangle on a graph has a vertical side of 5 and a horizontal side of 11. Another triangle on a graph has a vertical
    11·2 answers
  • Evaluate the following expression 2(1,0) -3(2,-1)<br> A-(2,3)<br> B-(-4,3)<br> C-(-3,-2)<br> D-(2,3)
    15·2 answers
  • Use the figure below to find the missing sides and angles.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!