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Alex_Xolod [135]
4 years ago
11

Solve 4r2 – 7 = 29. a. +-6 b. +-3 c. +-4 d. +-5

Mathematics
1 answer:
SVETLANKA909090 [29]4 years ago
4 0
4r^2-7=29
+7 both sides
4r^2=36
÷4 both sides
r^2=9
square root both sides
r=+/-3 B
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Surface area and volumes formula​
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Step-by-step explanation:

Surface area of what shape or solid ?

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What's the circumference of a circle with radius of 18 in. Leave answer in terms of pie
Verdich [7]
We Know, Circumference of Circle = 2πr
Here, r = 18
Substitute it in to the expression,
C = 2π(18) = 36π

So, your final answer is 36π

Hope this helps!
7 0
3 years ago
This is a quiz on special right triangles. please help me i cannot fail this. i will mark brainliest
kobusy [5.1K]

Answer:

x=4

Step-by-step explanation:

Consider ΔKLJ:

sinθ=opposite/hypotenuse

sin30=LJ/8√2

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4 0
3 years ago
Solve for x. Reduce any fractions to lowest terms. Don't round your answer, and don't use mixed fractions. 54x+64 49x + 59
never [62]

Answer:

x=-1

Step-by-step explanation:

54x+64=49x+59

subtract 64

54x=49x-5

subtract 49x

5x=-5

divide by 5

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7 0
3 years ago
Find the slope of the line below. Enter your answer as a fraction of
Levart [38]

Answer:

  • \boxed{\sf{\dfrac{3}{10}}}

Step-by-step explanation:

Use the slope formula.

<h3 /><h3>What is a slope?</h3>

Slope is a surface with one end higher than the other and with no steps. It proceeds at an angle. The path sloped down to the beach.

So, the property possessed by a line or surface that departs from the horizontal.

<u>Slope formula:</u>

\longrightarrow \sf{\dfrac{y_2-y_1}{x_2-x_1} }

(-6,-2) (4,1)

  • y₂=1
  • y₁=(-2)
  • x₂=4
  • x₁=(-6)

<u>Rewrite the problem down.</u>

\sf{\dfrac{1-\left(-2\right)}{4-\left(-6\right)}}

<u>Solve.</u>

1-(-2)=1+2

<u>Add.</u>

1+2=3

4-(-6)=4+6

4+6=10

\boxed{\sf{\frac{3}{10} }}

Therefore, the slope is 3/10, which is our answer.

To learn more about slope:

brainly.com/question/24241142

brainly.com/question/66944

#SPJ1

4 0
2 years ago
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