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natima [27]
3 years ago
7

Mr.Ruiz writes the expression 5x(2+1)2 / 3 on the board. Chelsea says the first step evaluate 12. Explain Chelsea’s mistake. The

n, evaluate the question.
Mathematics
1 answer:
Nat2105 [25]3 years ago
7 0
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Mark estimates that the distance from his house to his school is 15.5 mi. The actual distance is 14.5 mi. To the nearest tenth o
Scorpion4ik [409]
The error is 1.0 mile, too large.

Write the ratio 

1.0 mile
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Mark's estimate is 6.9% greater than the actual distance.

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3 years ago
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Find the length of each arc, Round your answas to the nearest tenth. Use 3.14 for
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Answer:

58.6 cm;

20.1 m

Step-by-step explanation:

✔️Length of arc = θ/360 × 2πr

Where,

θ = 240°

r = 14 cm

π = 3.14

Plug in the values:

Length of arc = 240/360 × 2 × 3.14 × 14

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✔️Length of arc = θ/360 × 2πr

Where,

θ = 105°

r = 11 m

π = 3.14

Plug in the values:

Length of arc = 105/360 × 2 × 3.14 × 11

= 20.1483334 = 20.1 m (nearest tenth)

3 0
3 years ago
David and Mary split the cost of a pound each of jelly beans,gundrops,andpeppermints. how much they pay?
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How much was the total?

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3 years ago
Prove that there does not exist integers m and n such that 2m+4n=7
slamgirl [31]
2m+4n=7\iff m+2n=\dfrac72

There is no choice of integers (m,n) such that the left hand side is a rational number.
8 0
3 years ago
The main cable of a suspension bridge forms a parabola described by the equation y = a(x - 50)2 + 6. What is the value of a?
Rashid [163]

Answer:

0.0048 should be the answer

Step-by-step explanation:

Plug in a point to replace the values of y and x to find the value of a

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3 years ago
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