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3 years ago

Given: Z2 and Z4 are vertical angles. Prove: Z2 = Z4

Mathematics

1 answer:

san4es73 [151]3 years ago

8 0

Step-by-step explanation:

we know about vertical angels that are equal

so <2=<4

(in fact they are congruent angles)

we found those only from the definition of vertical angles.

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33 to 45 Is What percent

Arlecino [84]

It's %73.3. Just divide the top numerator to the denominator

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3 years ago

The flash of lightning travels at the speed of light, which is about 186,000 miles per second. The sound of lightning (thunder)

4vir4ik [10]

Answer:

A. Distance of the lightning after 4 seconds = 744,000 miles

B. Distance of the lightning after n seconds = 186,000 * n

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Speed of lightning = 186,000 miles per second

Speed of sound = 750 miles per hour

2. A. If you see a flash of lightning, then hear the thunder 4 seconds later, how far away is the lightning?

Distance of the lightning after 4 seconds = 186,000 * 4

Distance of the lightning after 4 seconds = 744,000 miles

B. Now let’s generalize that result. Suppose it takes n seconds to hear the thunder after a flash of lightning. How far away is the lightning, in terms of n?

Distance of the lightning after n seconds = 186,000 * n

4 0

3 years ago

Calculation without distribution

Viefleur [7K]

Answer:

$2.69

Step-by-step explanation:

The prices of the 3 books are:

$2.50, $4.95, $6

The total is $2.50 + $4.95 + $6 = $13.45

The sale is 20% off.

20% of $13.45 =

= 0.2 * $13.45

= $2.69

Answer: You will save $2.69.

7 0

4 years ago

the melting point of mercury is -39°C. the freezing point of alcohol is 114°C. How much cooker is the melting point of mercury t

8_murik_8 [283]

This is one of those cases where you have to believe that a minus times a minus is a plus.

114 - - 39 = 153 degrees. The freezing of mercury is 153 degrees cooler than the freezing point of alcohol. I would check your descriptions. Did you mean boiling point of Alcohol?

8 0

4 years ago

Is what is the slope of -1,5 -5,-5 on a graph

blagie [28]

Answer:

Step-by-step explanation:

(-1,5)....x1 = -1 and y1 = 5

(-5,-5)..x2 = -5 and y2 = -5

slope = (y2 - y1) / (x2 - x1)

slope = (-5 - 5) / (-5 - (-1) = -10 / (-5 + 1) = -10/-4 = 5/2 <===

4 0

3 years ago