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olga nikolaevna [1]
3 years ago
14

Sqrtx^2+6x+9 if x≥3 please help quick idk how to do this at all

Mathematics
1 answer:
katrin [286]3 years ago
7 0

Answer:

x+3

Step-by-step explanation:

sqrt(x^2+6x+9)

factor

We know this is a perfect square trinomial

sqrt(( x+3)^2)

Taking the square root of a square

x+3

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Solve for x: x - 9 = 15<br><br> A. 6<br> B. 24<br> C. -24<br> D. -6
Oduvanchick [21]

Answer:

X = 24

Step-by-step explanation:

Add 9 To Both Sides

X - 9 + 9 = 15 + 9

Simplify

X = 24

Best Of Luck,

- I.A. -

4 0
3 years ago
Read 2 more answers
If x is 1 what is the value of y?9x - 5y = 29
mylen [45]

Given

The equation,

9x - 5y = 29.

To find the value of y when x is 1.

Explanation:

It is given that,

9x-5y=29

That implies,

When x=1,

\begin{gathered} 9(1)-5y=29 \\ 9-5y=29 \\ -5y=29-9 \\ -5y=20 \\ y=\frac{20}{-5} \\ y=-4 \end{gathered}

Hence, the value of y is -4.

4 0
1 year ago
HELP PLEASEWhat is the value of the exponential expression below?
vladimir2022 [97]
Hi, I got C because you just put 1/2 in for an exponent.. so, 16 of an exponent of 1/2.. it would be letter C. 4
6 0
3 years ago
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A rectangle has a width of 9 units and a length of 40 units. What is the length of a diagonal?
aleksandr82 [10.1K]

Answer:

41 units

Step-by-step explanation:

Pythagorean's  theorem,

Hypotenuse² = base² + adjacent²

Diagonal² = length² + width²

                 = 40² + 9²

                 = 1600 + 81 = 1681

Diagonal = √1681 = 41 units

7 0
2 years ago
I need help on those two!!!
larisa86 [58]

Answer:

8. B

9. A

Step-by-step explanation:

4 0
3 years ago
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