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Mkey [24]
3 years ago
6

Evaluate the following expression using the values given:

Mathematics
1 answer:
Kobotan [32]3 years ago
3 0
The answer isss.. 15!
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Find the measures of two complementary angles, ANGLE A AND B, IF m Ð A= 7X+4 and Ð B=4X+9.
skad [1K]

Answer:

x  = 7

angle A = 7(7) + 4 = 49 + 4 = 53°

angle B = 4(7) + 9 = 28 + 9 = 37°

Step-by-step explanation:

m ∠A  + m ∠B = 90°                    Complementary angles sum = 90°

7x + 4 + 4x + 9 = 90

11x + 13 = 90

11x = 77

x  = 7

angle A = 7(7) + 4 = 49 + 4 = 53°

angle B = 4(7) + 9 = 28 + 9 = 37°

Check = angle A + angle B =  90° checked

5 0
3 years ago
Simplify -8y^3(7y^2-4y-1) PLEASE HELP
max2010maxim [7]

Hey!



Alright, according to P.E.M.D.A.S., the first step to solving this expression is to distribute.


<em>Original Expression :</em>

\displaystyle\ -8y^{3} (7y^{2} -4y-1)


<em>New Expression {Distributed Old Expression} :</em>

\displaystyle\ -(56y^{5} -32y^{4} -8y^{3} )


Now all you have to do is simplify the parenthesis.


<em>Old Expression :</em>

\displaystyle\ -(56y^{5} -32y^{4} -8y^{3} )


<em>New Expression {Simplified} :</em>

\displaystyle\ -56y^{5} + 32y^{4} + 8y^{3}


<em>So, since the expression can no longer be simplified, the final answer is...</em>


<h3>\displaystyle\ -56y^{5} + 32y^{4} + 8y^{3}</h3>

Hope this helps!



- Lindsey Frazier ♥

6 0
3 years ago
Read 2 more answers
Theoretical probability is the same thing as experimental probability.<br><br> True<br> False
Archy [21]
Theoretical probability<span> is what we expect to happen, where </span>experimental probability<span> is what actually happens when we try it out. So the answer is FALSE.</span>
6 0
3 years ago
Part D
Assoli18 [71]

Answer:

BD and BE are tangents to the circle

Step-by-step explanation:

Given

See attachment

Required

What does BD and BE represent?

From the attachment, we have:

\angle BDA = 90^\circ

\angle BEA = 90^\circ

Radii = AD\ and\ AE

The measure of angles between a tangent and the radius of a circle is always 90^\circ\\

So, because \angle BDA = 90^\circ and AD is a radius, then BD is a tangent to circle.

Similarly,; \angle BEA = 90^\circ and AE being a radius implies that BE is a tangent to circle.

4 0
3 years ago
3 to the power of 4 divided by 3 to the power of 9 all simplified expressions
notsponge [240]

Answer:243

Step-by-step explanation:

7 0
3 years ago
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