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andreev551 [17]
3 years ago
15

Subject Algebra 1

Mathematics
1 answer:
Mashutka [201]3 years ago
6 0

Answer:

10x^{2}-34

Step-by-step explanation:

Because we are told equivalent expressions for y and z we can plug those in to 2(y+z).

2((3x^{2}+x^{2}-5)+(x^{2}-12))

Then simplify by combining like terms of the expressions. Values ending in x^2 can be combined with each other.

2(5x^{2}-17)

Now we can distribute the 2 by multiplying each value in the parentheses by 2.

10x^{2}-34

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True or False? The graph of sine can be used to construct the graph of the secant function.
amid [387]

True

Note that:

secant \theta = \frac{1}{cos\theta}

The graph of sine and cosine functions are very similar. They only have a shift in the x -axis.

That is,  sin x  =  cos (90  -  x)

Since there is a great similarity between the sine and cosine graphs, and the secant graph is an inverse of the cosine graph, the graph of sine can be used to construct the graph of the secant function

Mathematically:

since  sec x  =  1 / cos x

and, cos x = sin (90 - x)

therefore, sec x = 1 / sin (90 - x)

The graphs of the sine and secant functions are attached to this solution

Learn more here: brainly.com/question/9554579

5 0
2 years ago
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Shtirlitz [24]

The equation is P= 2w + 2(w+4.1)

The width is 8.2cm

5 0
2 years ago
How much is 3/4 of 120? And how much is 3/8 of 160?
RoseWind [281]
3/4 of 120
=3/4*120
=360/4
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3/8 of 160
=3/8*160
=480/8
=60
4 0
3 years ago
Read 2 more answers
Triangle ABC has side lengths of 4 units, 7 units, and 5 units. Use the Converse of the Pythagorean Theorem to prove that ABC is
zaharov [31]

Answer:

3

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1

 a^2 + b^2 = c^2

4

41 ≠ 49

2

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Step-by-step explanation:

8 0
2 years ago
56· 328+162· 44+166· 44−x =0<br> find x<br> the dot is to mutiply
Slav-nsk [51]

Answer:

x = 32800

Step-by-step explanation:

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18368 + 7128 + 7304 − x = 0

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-x = -32800

x = 32800

8 0
2 years ago
Read 2 more answers
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