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Eddi Din [679]
3 years ago
15

Can someone help? It's super urgent I need it solved!

Mathematics
1 answer:
Kay [80]3 years ago
5 0

Answer:

Y = +- √ x - 5

Step-by-step explanation:

1. write f (x) = x^2 +5 as an equation (y = x^2 + 5)

2. interchange the varibles (x = y^2 + 5)

3. Solve for Y

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What is the coefficient of X^2Y^2 in the expansion of (x+y)^4
nata0808 [166]

Answer:

6

Step-by-step explanation:

We want to expand this; (x + y)⁴

This can be written as;

(x + y)² × (x + y)²

This gives;

(x² + 2xy + y²) × (x² + 2xy + y²)

This gives;

x²(x² + 2xy + y²) + 2xy(x² + 2xy + y²) + y²(x² + 2xy + y²) = x⁴ + 2x³y + x²y² + 2x³y + 4x²y² + 2xy³ + x²y² + 2xy³ + y⁴

Simplifying gives;

x⁴ + 4x³y + 4xy³ + 6x²y² + y⁴

Thus, the coefficient of x²y² is 6

3 0
2 years ago
Point b is the midpoint of ac-. if ab= 4x+2 and ac=10x-6, find the length of ac
Natasha2012 [34]

let's bear in mind that B is the midpoint and thus it cuts a segment into two equal halves.

\bf \underset{\leftarrow \qquad \textit{\large 10x-6}\qquad \to }{\boxed{A}\stackrel{4x+2}{\rule[0.35em]{10em}{0.25pt}} B\stackrel{\underline{4x+2}}{\rule[0.35em]{10em}{0.25pt}\boxed{C}}} \\\\\\ AC=AB+BC\implies 10x-6=(4x+2)+(4x+2)\implies 10x-6=8x+4 \\\\\\ 2x-6=4\implies 2x=10\implies x=\cfrac{10}{2}\implies x= 5 \\\\[-0.35em] ~\dotfill\\\\ AC=(4x+2)+(4x+2)\implies AC=[4(5)+2]+[4(5)+2] \\\\\\ AC=22+22\implies AC=44

3 0
3 years ago
PLZZ HELP
WARRIOR [948]

Answer:

3a-14=4, is an equation, as equations are always equal to something and give an answer, as too an expression is required to be evaluated to receive an answer.

-I hope this is the answer you are looking for.

Step-by-step explanation:

3 0
2 years ago
Please help me figure out the median.
atroni [7]
What you would do is start crossing the highest and lowest values off on both sides of the chart until you had one or two remaining.
Once that is done, you'll be able to determine the median.

The median in this case is 2.

Hope this helps!

8 0
3 years ago
A² +6² = c²<br> Find the length of c:
yanalaym [24]
64+36=c^2
100=c^2
square root both sides for 10=c
10 is your answer
3 0
3 years ago
Read 2 more answers
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