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tresset_1 [31]
3 years ago
14

Using elimination (combination), which variable will be eliminated first? 5x-y=-21x+y=-3

Mathematics
1 answer:
stiks02 [169]3 years ago
7 0

Answer:

Option B) The variable Y will cancel out first.

Step-by-step explanation:

we have

5x-y=-21 ----> equation A

x+y=-3 ----> equation B

Solve by elimination

Adds equation A and equation B

5x-y=-21

x+y=-3

--------------

5x+x=-21-3 ----->variable y will be eliminated first

6x=-24

x=-4

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Write f(x)=8x^2-4x+11 in vertex form
Vlad [161]

Answer:

f(x)=8(x-\frac{1}{4})^{2}+\frac{21}{2}

or

f(x)=8(x-0.25)^{2}+10.5

Step-by-step explanation:

we have

f(x)=8x^{2}-4x+11

This is a vertical parabola open upward (because the leading coefficient is positive)

The vertex is a minimum

Convert to vertex form

Factor the leading coefficient

f(x)=8(x^{2}-\frac{1}{2}x)+11

Complete the square. Remember to balance the equation by adding the same constants to each side.

f(x)=8(x^{2}-\frac{1}{2}x+\frac{1}{16})+11-\frac{1}{2}

f(x)=8(x^{2}-\frac{1}{2}x+\frac{1}{16})+\frac{21}{2}

Rewrite as perfect squares

f(x)=8(x-\frac{1}{4})^{2}+\frac{21}{2} ----> equation in vertex form

or

f(x)=8(x-0.25)^{2}+10.5

The vertex is the point  (0.25,10.5)

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3 years ago
A new law has support from some Democrats and some Republicans. This two-way frequency table shows the proportion from each poli
Paul [167]

Answer:

Step-by-step explanation:

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Political parties are points of access/linkage institutions available to the public, though they are not themselves government institutions. Neither interest groups nor political parties are directly mentioned in the U.S. Constitution. Where interest groups often work indirectly to influence our leaders, political parties are organizations that try to directly influence public policy through nominating and officially sponsoring members who seek to win and hold public office. This is a key difference. Interest groups do not officially nominate or nominate candidates for public office, although they may support them politically and even contribute dollars to their campaign.

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link to learning

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2 years ago
4,250,000 written in word form
Wewaii [24]
Four million two hundred fifty thousand
5 0
3 years ago
Read 2 more answers
A=34.5. B=29.04. C= 204.7 D= 18.83
ahrayia [7]

The answer is B.) 29.04

you find c and then add it to a and b

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if angle 1 and angle 4 are supplementary which theorem leads to the conclusion that a is parallel to s​
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Answer:

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