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Stella [2.4K]
3 years ago
6

It is easy. I need help. I’ll mark brilliant!!!

Mathematics
1 answer:
Natalija [7]3 years ago
6 0

Answer:

256.4

Step-by-step explanation:

\frac{1}{3}\pir^{2}h

3.14 x 25 = 78.5

78.5 x 9.8 = 769.3

769.3 ÷ 3 = 256.433333

256.433333 ≈ 256.4

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A rectangle has a perimeter of 34 cm. It’s length is 5 more than twice it’s width.Write and solve a system of equations to find
Aloiza [94]

Answer:

Length = 13 cm

Step-by-step explanation:

Length (L) = 2 x Width (W) + 5

2 x (L + W) = 34

2 x (2W + 5 + W) = 34

6W + 10 = 34

6W = 34-10 = 24

W=4

L = 13

6 0
3 years ago
Find |−68|. plz i will give brainlist
Anni [7]

Answer:

68

Step-by-step explanation:

The lines on both sides of the number represent absolute value. Absolute value takes any number and turns it positive no matter what.

|-68| → 68

Best of Luck!

8 0
3 years ago
What is m∠PTR? a. 12 b. 40 c. 50 d. 140 HELP!!!
kramer

Answer:

m<PTR = 140°

Step-by-step explanation:

First, find the value of x. To find the value of x, derive an equation which you'd use in solving for x.

m<PTQ = (x + 28)°

m<RTS = (2x + 16)°

m<PTQ = m<RTS (vertical opposite angles are congruent)

Therefore:

x + 28 = 2x + 16

Solve for x. Combine like terms

28 - 16 = 2x - x

12 = x

x = 12

Find m<PTQ

m<PTQ = (x + 28)

plug in the value of x

m<PTQ = 12 + 28 = 40°

m<PTR + m<PTQ = 180° (supplementary angles)

m<PTR + 40° = 180° (substitution)

m<PTR = 180 - 40 (subtracting 40 from each side)

m<PTR = 140°

3 0
3 years ago
Please someone help!!!
agasfer [191]

Answer:

Step-by-step explanation:

A, B and C must be real numbers, and A and B are not both zero (which would cause division by zero in the calculation of the slope).

3 0
3 years ago
(Need help ASAP no rocky) Determine whether the quadrilateral with vertices at A(5,7), B(1, -2), C(-6, -3), and D(2,5) is a para
Maurinko [17]

Answer:

c

Step-by-step explanation:

because it is the most reasonable answer

4 0
3 years ago
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