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rusak2 [61]
3 years ago
12

PLEASE HELP 7TH GRADE MATH

Mathematics
1 answer:
shepuryov [24]3 years ago
6 0
21 is I

should be akakakdndfmdmsmwwkwksoizjdnsnwk
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Find the percent of increase from 8 feet to 10 feet. Round the percent to the nearest tenth if necessary.
Ivenika [448]
20%

source= 8/10 is 80% so you take the remaining 20% which is the percent of increase
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3 years ago
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535=5 hundreds+how many tens +5 ones<br> 535= how many tens + 5 ones<br> 535=535 ones
weqwewe [10]
4 hundreds 13 tens 5 ones = 4*100+13*10+5*1=400+130+5= \boxed {535}
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PLEASE HELP! I WILL GIVE BRAINLIEST!
zmey [24]

Answer:

2pi, 4pi, 6pi, 8pi, 10pi, 12pi, 14pi, 16pi, 18pi, 20pi

Step-by-step explanation:

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8 0
3 years ago
An engineer is trying to design a runway for an airport. He knows that airplanes have the ability to accelerate at 3.3 m/s ^ 2 a
chubhunter [2.5K]

Answer:

The proposed 1600 meters runway length is not long enough

Step-by-step explanation:

The given parameters are;

The amount by which a plane can accelerate = 3.3 m/s²

The time it takes for a plane to lift off the ground = 35 seconds

The length of the runway on the blueprint = 1,600 meters

Therefore, from the equation of motion for distance traveled, s, acceleration, a, and time taken, t, we have;

s = u·t + 1/2·a·t²

Where;

u = The initial velocity

t = 35 seconds

a = 3.3 m/s²

Given that all planes will start motion from rest, we have;

u = 0 m/s

Therefore;

s = 0 × 35 + 1/2 × 3.3 × 35² = 2021.25 meters

Which indicates that the length of the runway a plane would need for take off should be at least 2021.25 meters long, therefore, the blueprint's 1600 meters runway length is not long enough.

7 0
3 years ago
Study the given data set. {77,4,62,10,45,9,38,80,2}. What is the standard deviation of the data?
vladimir1956 [14]

Answer:

29.7 is the standard deviation :)

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3 years ago
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