3 years ago

Which statements regarding triangle DEF are correct? Select three options.

Mathematics

1 answer:

True [87]3 years ago

5 0

Answer:

the awnser of this question is 3,5,8

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Behaviors that living things inherit are called

Mashcka [7]

Genes, "characteristic of the offspring" (google web)

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3 years ago

A sound receiving dish used at outdoor sporting events is constructed in the shape of a paraboloid, with its focus 8 inches from

bixtya [17]

Answer:

w≅8.46ft

Step-by-step explanation:

Data

focus=8

vertex=(0,0)

width=?

depth (y)=3ft

parabola equation: $(x-h)^{2}=4p(y-k)$ ; then for V=(0,0), $x^{2} =4py$ , be focus(f)=8in; $x^{2} =4*8*y=32y$ → $y=\frac{x^{2} }{32}$

we have that y=3ft then $3=\frac{x^{2} }{32}$ ; but 1in≅0.083ft so $x^{2} =3*32*0.083=7.968$ → x=±2.82, finally w=3*2.82≅8.46ft

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3 years ago

It takes 4/5 of an hour to paint 2/5 of a room, how long does it take to paint one room?

BlackZzzverrR [31]

Answer:

120 min

2 hrs

Step-by-step explanation:

60 min=1 hr

60 min/5=12 min

12(4)=48 min

24 min=1/5 of room

24(5)=120 min

120 min=2 hrs

7 0

3 years ago

Write the following expression without negative exponents and without prenthenses 4x^-1

Elza [17]

Answer:

1/4x^1 or just 4x

Step-by-step explanation

make it a fraction

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4 years ago

You are rock climbing and descending a cliff at a rate of 9 feet per minute. The cliff is about 360 feet high. How long until yo

Lana71 [14]

In 14 minutes your at 234 feet.
In 20 minutes your at 180, which is halfway down the mountain.

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3 years ago