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3 years ago

I need help solving this problem with proofs if at all possible

Mathematics

2 answers:

Katarina [22]3 years ago

7 0

Your answer to this question 134 degrees

k0ka [10]3 years ago

4 0

I don't really like these algebra problems which pretend to be geometry.

The bisector makes two equal angles, so

x/2 + 17 = x - 33

50 = (1/2) x

x = 100

That means ABC = 100/2 + 17 = 67 degrees

CBD = 100 - 33 = 67 degrees, equal so that checks

We're asked for ABC which is 67 + 67 = 134 degrees

Answer: 134°

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The gravitational force, F, between an object and the Earth is inversely proportional to the square of the distance from the obj

vampirchik [111]

Answer:

45.95 pounds is the weight of the astronaut 4050 miles above the Earth.

Step-by-step explanation:

The gravitational force F ∝ $\frac{1}{r^{2} }$

F = $\frac{k}{r^{2}}$

where r = Distance of the object from the center of the earth

and k = proportionality constant

For the astronaut weight = 186 pounds

186 = $\frac{k}{4000^{2}}$ [ where radius of the Earth = 4000 miles]

k = $186\times 16\times 10^{6}$

= $2976\times 10^{6}$

If the object is 4050 miles above the Earth then the weight of the object will be F = $\frac{2976\times 10^{6} }{(4000+4050)^{2}}$

F = $\frac{2976\times 10^{6} }{(8050)^{2}}$

F = $\frac{2976\times 10^{6} }{64802500}$

= $\frac{2976000000}{64802500}$

= 45.94 pounds

Therefore, 45.95 pounds is the weight of the astronaut 4050 miles above the Earth.

6 0

3 years ago

What is 3 + (−10) + 7?

statuscvo [17]

Hello there ur correct answer would be:

3−10+7

=−7+7

Hope this helps have an amazing day may GOD Bless You..............

6 0

3 years ago

Write a piecewise function for the graph.<br><br> Please help!

Lyrx [107]

Answer:

f(x)= 4x+3, if x<-1

f(x)= -x, if x $\geq$ -1

Step-by-step explanation:

I hope this helps!!

8 0

3 years ago

How many roots are there of the equation √4x³+18x-90+2x=0

stellarik [79]

Answer:

Step-by-step explanation:

Highest degree of the polynomial is 3
So it's a trinomial .
It has 3roots so.

7 0

3 years ago

Read 2 more answers

Ayso has 18 8th grade boys teams this year but this is a 28% decrease from the prior year. How many 8th grade teams were there l

NikAS [45]

Answer:

23pupils

Step-by-step explanation:

Given parameters:

Number of 18th grade boys this year = 18

Percentage decrease = 28%

Unknown:

How many 8th grade teams were there last year = ?

Solution:

Since this is a percentage decrease, ;

Number of pupils this year = Number of pupils last year - (28% x 18 )

18 + (28% x 18 ) = Number of pupils last year

Number of pupils last year = 23pupils

4 0

3 years ago