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2 years ago

A magnet that is an iron core wrapped with electrical wire is called a(n):

Mathematics

1 answer:

andriy [413]2 years ago

7 0

electromagnet

hope it helps...!!!

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PLZ HELP !!!!! 7/20 divided by 2/5

k0ka [10]

Answer:

it is <em><u>7/8</u></em> if i can be brainliest that would be great

Step-by-step explanation:

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3 years ago

Read 2 more answers

Share 4000 in a ratio 3:4:1

muminat

Answer:

3/8 x 4000 = 1500

4/8 x 4000 = 2000

1/8 x 4000 =500

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3 years ago

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If the results of the survey were claimed to indicate that 7.7% of adults in this country who own digital cameras plan to replac

Sidana [21]

Answer: inferential

Step-by-step explanation: inferential statistics help us to make predictions ( that is, inferences) from that data. With inferential statistics, you take data from samples and make generalizations about a population.

Also, inferential statistics allow us to reach conclusions that extend beyond the immediate data alone

In this question, the survey reports on a sample of the country's population that make an inference to the population. It is therefore an inference statement.

3 0

4 years ago

What two numbers add up to 6 and multiply to 12?

GuDViN [60]

Erm

x+y=6
xy=12

x+y=6
y=6-x
sub back

xy=12
x(6-x)=12
6x-x^2=12
x^2-6x=-12
x^2-6x+12=0
quadratic formula
for
ax²+bx+c=0
$x= \frac{-b+/- \sqrt{b^2-4ac} }{2a}$

for
x²-6x+12=0
a=1
b=-6
c=12
and remember that √-1=i

$x= \frac{-(-6)+/- \sqrt{(-6)^2-4(1)(12)} }{2(1)}$
$x= \frac{6+/- \sqrt{36-48} }{2}$
$x= \frac{6+/- \sqrt{-12} }{2}$
$x= \frac{6+/- (\sqrt{-1})(\sqrt{12}) }{2}$
$x= \frac{6+/- (i)(2\sqrt{3}) }{2}$
$x= \frac{6+/- 2i\sqrt{3} }{2}$
x=3+/-i√3

the numbers are 3+i√3 and 3-i√3
no real numbers tho

7 0

4 years ago

William throws a football at a rate of 60 feet per second. How long will it take the football to travel 120 feet?

algol13

A - just double it hope it helps

5 0

3 years ago