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Ulleksa [173]
3 years ago
12

a sprinter runs 400 meters in 54 seconds.What is the runners average running rate in meters per second?Round to the nearest tent

h
Mathematics
1 answer:
Novay_Z [31]3 years ago
8 0
You want to find meters per second.
So meters goes over seconds
400 meters/54 seconds
Now pull out the calculator.
You should get ≈ 7.4  \frac{m}{s}, or 7.4 meters per second
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Not easy to graph but

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subtitute
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3 0
3 years ago
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What is the modulus of |9+40i|?
Talja [164]

Answer:

41

Step-by-step explanation:

We know that complex numbers are a combination of real and imaginary numbers

Real part is x and imaginary part y is multiplied by i, square root of -1

Modulus of x+iy = \sqrt{x^2+y^2}

Here instead of x and y are given 9 and 40

i.e. 9+40i

Hence to find modulus we square the coefficients add them and then find square root

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By long division method we find that

|9+40i| =41


6 0
3 years ago
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snow_lady [41]

StartFraction 3 pi Over 4 EndFraction radians

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Given the minor arc angles as 135°, change this value to pi radians

180° =π radians

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Cross multiply

135° * π radians / 180°

=135/180 *  π radians

=3 π/4  radians

Learn More

Changing degrees to radians :brainly.com/question/12095161

Keywords: minor arc, measure, circle, line segment, radii, central angle

#LearnwithBrainly

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3 years ago
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