X+4y=2v make x the subject

1 answer:

7 0

X=-4y+2v is the answer, because you would put 4y on the other side do -4y to even zero out the y factor on the left side.

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Write an expression for the perimeter of the triangle shown below

MrMuchimi

the answer is 5.5x + 9

7 0

2 years ago

Help! I have solving systems of equations using substitution, and sometimes I have equations like this:

timurjin [86]

For systems of equations try using graphing, substitution, and elimination. For example
{2x+7y=3}
{x=-4y}
You should first look at if you have a variable that can be substituted (using substitution) and in this case we do! you plug in the x into 2x meaning 2(-4y)+7y=3
1) distribute -8y+7y=3
2) combine like terms in this case -8y+7y= -1y
3) solve -1y=3
y=-3
so currently our solution is (0,-3)
now we solve for x.
we plug our solved variable (y) into 7y
7(-3) and our equation looks like this
2x+7(-3)=3
1) distribute 7(-3)=-21
2) rewrite then solve 2x+(-21)=3
3) isolate variable -21+21 & 3+21
4) 2x=24
5) solve 2/24 = 12
Meaning our solution is (12,-3)
This is how to solve by substitution.

8 0

2 years ago

3. What would the graph of y=x2 + 1 look like?

77julia77 [94]

The answer would be a

6 0

3 years ago

Read 2 more answers

2.2.2.2.2.2.2exponential form

Allisa [31]

2^7

(2 to the 7th power)

3 0

3 years ago

There is a 0.9986 probability that a randomly selected 33-year-old male lives through the year. A life insurance company charge

Helen [10]

Answer:

Expected Value = -$42 (loss of 42 dollars)

Step-by-step explanation:

Complete Question Below:

"There is a 0.9986 probability that a randomly selected 33-year-old male lives through the year. A life insurance company charges $182 for insuring that the male will live through the year. If the male does not survive the year, the policy pays out $110 comma 000 as a death benefit. If a 33-year-old male purchases the policy, what is his expected value?"

We can say P(survival) = 0.9986 and thus P(not survival) = 1 - P(survival) = 1-0.9986 = 0.0014

Also,

In case 33 year old doesn't live, the payment would be 100,000 - 182 = $99,818

And

In case 33 year old lives, the payment is

-$182

We know, the expected value is the sum of the product of each possibility with its probability.

$ExpectedValue=\Sigma x*p(x)=(99818)(0.0014)+(-182)(0.9986)=-42$

This means a loss of $42 (or -$42)

4 0

2 years ago