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Volgvan
4 years ago
5

What is the perimeter of triangle DEF?

Mathematics
1 answer:
Mrac [35]4 years ago
4 0

Answer:

(4.2 units)

Step-by-step explanation:

By inspection of the illustration we can see that leg DE has length 3 and that leg DF also has length 3.  By the Pythagorean Theorem, 3^2 + 3^2 = 2(3^2); thus, the length of the hypotenuse EF is 3√2, or approximately 4.24 units.  The third answer choice (4.2 units) is the correct one.

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Which represent this number?
Alexeev081 [22]
The answer to the question is D
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3 years ago
It takes the earth 24 h to complete a full rotation. It takes Mercury approximately 58 days, 15 h, and 30 min to complete a full
Nastasia [14]
It takes Mercury <span>approximately 58 days, 15 h, and 30 min to complete a full rotation..

We are going to write the time not in days, hours and minutes, but only hours.

This means that we have to write 58 days as hours and 30 minutes as hours.



1 day is 24 hours, so 58 days are

58*24=(50+8)*(20+4)=50*20+50*4+8*20+8*4=1,000+200+160+32

=1,200+192=1,392  (hours)


60 minutes are 1 hour, so 30 minutes are 0.5 hours.



Thus


</span>58 days, 15 h, and 30 min are (1,392+15+0.5) hours = 1,407.5 hours



Answer: 1,407.5 hours
6 0
4 years ago
Can u plz help me answer question 30
slamgirl [31]

We are given:

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This is in the simplest form I can get into. I cannot do anything more to simplify this expression. This is your final answer.

3 0
3 years ago
Can someone help me please?
PIT_PIT [208]
4. Each climber carried 1.95 kilograms of equipment.
5. He should put the picture 8.5 inches far from the each side of the page.
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3 years ago
Use your answer from Question #5 and the coordinates of P to find the coordinates of P’. Explain your work, including how the sc
Tresset [83]

Answer:

Scale factor is used to find the coordinates depending upon whether the scale factor value is less than one or more than one.

Step-by-step explanation:

A scale factor is a number which scales, or increases, some amount. In the condition y = Cx, C is the scale factor for x. C is likewise the coefficient of x, and might be known as the steady of proportionality of y to x.

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5 0
3 years ago
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