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3 years ago

Someone please come fast

Mathematics

1 answer:

lorasvet [3.4K]3 years ago

3 0

The reciprocal of a number is the number you get when you divide -1 by the origonal number exg

basically the reciprocal of the number, when multiplied by the origonal number, the result is -1 so

fractions are really easy because what you do for fractions is you flip the fraction then multiply by -1

2/9
flip
9/2
multiply -1
-9/2
the answer is A

-9/2
flip
-2/9
mulltply -1
2/9
the naswer is C

9/2
flip
2/9
multiply -1
-2/9
the answer is B

-2/9
fliip
-9/2
mltily -1
9/2
the answer is D

the order is ACBD

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-8

Step-by-step explanation:

-72 / 9 = -8

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slope=9/8

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Common household electric current is called alternating current because the current alternates direction within the wires. The v

Rainbow [258]

Answer:

n = 18 cycles

Step-by-step explanation:

To know how many times does the current oscillates in the given time, you take into account that the number of oscillation can be calculated by using the following expression:

$n=ft$ (1)

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t: time = 0.30s

The frequency is the number of cycles per second, that is, f = 60 cycles/s

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3 years ago

rosa correctly solved 275 divided by 5.enter numbers in boxes to show the equations she could use to solve the problem

kifflom [539]

Answer:

The first step would be to look at the first two numbers (which is 27) and estimate which <u>multiple</u> of 5 is closest and <u>below</u> 27.

5*5 = 25

So once she got 25, she will need to subtract 27-25, which will give her 2. REMEMBER: 5 is the first number of the quotient.

Now, she will need to drag the last digit left of 275 (which is 5) to the remainder 2 and think what multiple of 5 will give her the answer 25.

Again, 5*5 = 25

Once again, her numbers on the quotient will be 55. That's the answer.

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3 years ago

The points G(1, 4) and H(3, 0) are on a coordinate plane. What is the approximate distance between points G and H?

oksano4ka [1.4K]

Then the approximate distance between the points is 4.47 units.

<h3>What is the approximate distance between points G and H?</h3>

We have the points G(1, 4) and H(3, 0), to get the distance between them we use the distance formula, we will get:

$D = \sqrt{(1 - 3)^2 + (4 - 0)^2} \\\\D = \sqrt{(-2)^2 + (4)^2}\\\\D = \sqrt{4 + 16} = \sqrt{20}$

And we know that √20 ≈ 4.47

Then the approximate distance is 4.47 units.

If you want to learn more about distance between points.

brainly.com/question/7243416

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2 years ago