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3 years ago

Which is a perfect square a. 6^1 b. 6^2 c. 6^3 d. 6^5 (need answer now pls)

1 answer:

6 0

Hello there! 6^1 is not a perfect square. It's basically it's own number and 6 is not a perfect square. Therefore, A is out. 6^3 (216) is cubed, not squared, so C is out as well. Just by looking at the exponents, 6^2 is squared and 36 is a perfect square, so the answer is B: 6^2.

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30 Points Solve for x. 8x2−3=2 x=±10√4 x=±10√2 x=±5√2 x=±5√4

ANTONII [103]

Answer:

$x=(+/-)\frac{\sqrt{10}}{4}$

Step-by-step explanation:

we have

$8x^{2}-3=2$

adds 3 both sides

$8x^{2}=2+3$

$8x^{2}=5$

Divide by 8 both sides

$x^{2}=5/8$

square root both sides

$x=(+/-)\sqrt{\frac{5}{8}}\\ \\x=(+/-)\frac{\sqrt{5}}{2\sqrt{2}} \\ \\x=(+/-)\frac{\sqrt{10}}{4}$

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3 years ago

What is 5x+2y=-49 if -9<= x <=-7?

Arlecino [84]

I’m not quite sure I understand but if your saying that -9 =x and -7 =y then the answer would be -59 so the equation wouldn’t be true I hoped I helped :)

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4 years ago

How do the prefixes in the metric system relate to the basic units?

WITCHER [35]

The basic unit of length in the metric system is the meter. Grams are used to measure weight and liter is used to measure liquid capacity
besides, it is used so that you can express very large and very small numbers in a short unambiguous manner.
Example Instead of saying "three thousand million" meters
They classify the decimal place of the basic unit. ie, the meter is classified with milli (1/1000), centi(1/100), deci (1/10), Deca (10), Hecto (100), Kilo (1000).

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4 years ago

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Find the unit rate of speed for 120 miles in 2 hours.

Nat2105 [25]

Answer:

60mph

Step-by-step explanation:

120/2=60 mph

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3 years ago

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nydimaria [60]

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