2 years ago

Part

Mathematics

1 answer:

vitfil [10]2 years ago

8 0

Answer:

Step-by-step explanation:

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muminat

Step-by-step explanation:

fifth row=19+4=23

sixth row= 23+4=27

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Find the measure of the exterior angle 1. with one angle is 50 degrees and 28 degrees

OLga [1]

Answer:

D. 78°

Step-by-step explanation:

50°+28°= 78°

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2 years ago

The Stock Market nadia is a stockbroker. earns % commission each week. Last week, she earned $ in commission. How much were h

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2 years ago

Determine the value of the variable in the simplified expressions. What is the value of x in this simplified expression? x = Wha

arsen [322]

Answer:x=7 y=5

Step-by-step explanation:

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3 years ago

Explain why if a runner completes a 6.2â-mi race in 32 âmin, then he must have been running at exactly 11 âmi/hr at least twice

MA_775_DIABLO [31]

Answer:

Accelerating to top speed, deaccelerating to finish line.

Step-by-step explanation:

If the runner kept a constant speed of 11 mph for the whole duration of his run (32 minutes), the distance he would have covered is:

$d=11*\frac{32}{60}\\d= 5.87\ mi$

This means that, in order to run the full 6.2 miles, the runner needs to reach a speed over 11 mph. Assume he starts from rest, while accelerating the runner reaches, and the surpasses, the 11 mph mark. Since his speed at the finish line is zero, the runner has to deaccelerate from his current running speed (which should be higher than 11 mph), passing through 11 mph and reaching zero at the finish line.

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2 years ago