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Lina20 [59]
3 years ago
12

Rotate point H 90 degrees counterclockwise about the origin. What is the algebraic expression?

Mathematics
1 answer:
Fiesta28 [93]3 years ago
8 0
I think it’s B
Sorry if I’m wrong
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Solve the following quadratic equation:<br><br> y=5x2+10x<br> Solutions: x= and x=
Brilliant_brown [7]

Answer:

0 and -2

Step-by-step explanation:

5x^2+10x=0\\5x(x+2)=0\\\\Then\\5x=0\\\\x=\frac{0}{5}==>x_{1}=0 \\x+2=0==> x_{2}=-2

6 0
3 years ago
PLEASE HELP ME NOW!!
puteri [66]

Answer:

x=4+-2\sqrt{7}

Step-by-step explanation:

To solve, we need to take square root of both sides first:

(x-4)^2=28\\\sqrt{(x-4)^2} =+-\sqrt{28} \\x-4=+-\sqrt{28}

Now we use the property of radical shown below to simplify square root of 28:

Property:  \sqrt{x*y}=\sqrt{x} \sqrt{y}

Now, we have:

x-4=+-\sqrt{28}\\x-4=+-\sqrt{4*7}\\x-4=+-\sqrt{4}\sqrt{7}\\x-4=+-2\sqrt{7}

Now we take 4 to the other side and isolate x:

x-4=+-2\sqrt{7} \\x=4+-2\sqrt{7}

first answer choice is right.

4 0
3 years ago
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If someone answers this you’re gonna be brainliest
Yakvenalex [24]

Answer:

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Step-by-step explanation:

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3 years ago
Find the area of each figure
kotegsom [21]
8x10 = 80
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What is the sum of the finite arithmetic series? 26 + 29 + 32 + 35 + 38 + 41 + 44
Leya [2.2K]
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4 0
4 years ago
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