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AlladinOne [14]
3 years ago
7

What should be done to these equations in order to solve a system of equations by elimination?

Mathematics
1 answer:
zloy xaker [14]3 years ago
6 0

Answer:

B is the correct answer

Step-by-step explanation:

Since it gets rid of the y so you could find the x and then work around to find the Y.

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Which of the following equations could be solved to determine the length of RS?
stich3 [128]

Answer:

\frac{Sin(80)}{RS} = \frac{Sin(52.5)}{7}

Step-by-step explanation:

Given:

S = 52.5°

s = QR = 7

Q = 80°

q = RS = ?

Required:

Equation that could be used to find the length of RS

Solution:

We would need the law of Sines which is given as:

\frac{Sin(A)}{a} = \frac{Sin(B)}{b} = \frac{Sin(C)}{c}

Applying the Law of Sines, we would have the following equation:

\frac{Sin(Q)}{q} = \frac{Sin(S)}{s}

Plug in the values

\frac{Sin(80)}{RS} = \frac{Sin(52.5)}{7}

Therefore, the equation that can be used to determine the length of RS is \frac{Sin(80)}{RS} = \frac{Sin(52.5)}{7}

4 0
3 years ago
How many solutions will this system of equations have? y = 3.5x − 3.5 y = −3.5x + 3.5
icang [17]
We have that
<span>y = 3.5x − 3.5
y =−3.5x + 3.5

using a graph tool
see the attached figure

the solution is the point (1,0)
x=1
y=0

the answer is
one solution</span>

3 0
4 years ago
A - 2 + 3 = -2 <br>show work​
Zigmanuir [339]

Answer:

a=-3

Step-by-step explanation:

Add the 2 from the left to the right, swapping the sign go be positive over the equal sign.

You then have a+3=0

Subtract the three from both sides:

a=-3

3 0
3 years ago
Read 2 more answers
Can someone help me with 9-12 write an algebraic statement that illustrates the property please?
Rainbow [258]

Answer:

I will help you if you need help. Lol not gonna lie, I am also completing my work so that is why I am not able to answer sometimes, but I will help you right now.

5 0
3 years ago
Given (x - 1)^2 = 50, select the values of x.<br> X = -49<br> x = 51<br> x = 1+5.12<br> x = 1-5.12
densk [106]

Answer:

d,lcmdkcmdkmvkmv k jk i got you it is -49 +50 x=1/2

Step-by-step explanation:

3 0
3 years ago
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