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2 years ago

Slove this problem with the quadratic equation x^2-22x=75

Mathematics

1 answer:

soldi70 [24.7K]2 years ago

3 0

Answer:

$x=(+-)\sqrt{97}$

Step-by-step explanation:

the parenthesis with the plus and minus is when the plus is on top and the minus is underneath.

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2 years ago

If you apply the changes below to the absolute value parent function, f(x) = |x|, what is the equation of the new function?Shift

Jlenok [28]

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3 years ago

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2 years ago

Question 5(Multiple Choice Worth 4 points) Which number is the largest? 1.2 × 104, 4.5 × 10−3, 3.8 × 103, 7.5 × 103 1.2 × 104 4.

Andrew [12]

Answer:

1.2 × 10^4

Step-by-step explanation:

Which number is the largest?

1.2 × 10^4
4.5 × 10^-3
3.8 × 10^3
7.5 × 10^3

The first one is the largest as it has the greatest power

8 0

3 years ago

What is the sum? StartFraction 3 y Over y squared + 7 y + 10 EndFraction + StartFraction 2 Over y + 2 EndFraction

katovenus [111]

Answer:

$\dfrac{5}{y+5}$

Step-by-step explanation:

Here, we have to find the sum of 2 fractions:

1st fraction: $\dfrac{3y}{y^{2}+7y+10}$

2nd fraction: $\dfrac{2}{y+2}$

Considering the denominator of 1st fraction:

$y^{2}+7y+10$

Using factorization method:

$7y$ can be written as $(2y + 5y)$ .

$\Rightarrow y^{2}+2y+5y+10$

Taking 5 common from $5y+10$ and y common from $y^{2}+2y$ : $\Rightarrow y(y+2)+5(y+2)$

Now taking $(y+2)$ common:

$\Rightarrow (y+5)(y+2)$

$\dfrac{3y}{y^{2}+7y+10}$ can be written as $\dfrac{3y}{(y+5)(y+2)}$

Now, calculating the sum:

$\dfrac{2y}{(y+5)(y+2)} + \dfrac{2}{y+2}$

Taking LCM and solving:

$\Rightarrow \dfrac{3y+2(y+5)}{(y+5)(y+2)}\\\Rightarrow \dfrac{5y+10}{(y+5)(y+2)}\\\Rightarrow \dfrac{5(y+2)}{(y+5)(y+2)}\\\Rightarrow \dfrac{5}{(y+5)}$

Hence, answer is $\dfrac{5}{y+5}$ .

4 0

2 years ago