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3 years ago

Two coins and one six-sided number cube are tossed together.what is the probability of getting two heads and a four?

Mathematics

1 answer:

ohaa [14]3 years ago

5 0

I think 2/6 for coins and 1/6 for the cube

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What ratio is equivalent to 1/7

Rzqust [24]

14/2 is equivalent to 7/1

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2 years ago

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A refrigerator costs $580 a year to run. A family purchases a new one for $1200 that will save them 22% annually in energy costs

NeTakaya

Answer:

It will take nine years and four months for the refrigerator to pay for itself.

Step-by-step explanation:

The new refrigerator which costs $1200, saves the family 22% annually in energy cost.

Since the old refrigerator costs $580 to run, we want to determine how many years it will take for 22% of $580 per year to make $1200.

22% of $580

= 580 × 0.22

= 127.6

That is, it saved then $127.6 per year.

Now,

$1200/127.6

≈ 9.4

Which means, it will take 9 years and 4 months for the refrigerator to pay for itself.

7 0

3 years ago

Find the center and radius of the circle. Show all work

Alona [7]

The center is (-1, -2) and the radius of the circle is 5.

<h3>What is the equation of a circle?</h3>

The circle equation formula refers to the equation of a circle which represents the center-radius form of the circle.

A circle can be represented as;

$\rm (x-h)^2+(y-k)^2=r^2$

Where; h and k are the center of the circle r is the radius of the circle.

The given equation of the circle is;

$\rm (x+1)^2+(y+2)^2=25$

Comparing both the equations;

$\rm (x+1)^2+(y+2)^2=25\\\\\rm (x+1)^2+(y+2)^2=5^2\\\\h = -1\\\\k = -2\\\\r^2=5^2\\\\r=5$

Hence, the center is (-1, -2) and the radius of the circle is 5.

Learn more about circle here;

brainly.com/question/11833983

#SPJ2

3 0

1 year ago

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When solving negative -1/3.(x − 15) = −4, what is the correct sequence of operations

FrozenT [24]

Answer:

x=27

Step-by-step explanation:

i would give you the steps but honestly, im tired of giving 20 steps for every problem i answer.

5 0

3 years ago

Expand (3x + 1)(x + 2) using the box method of by foiling. Show or explain<br> your steps.

Reika [66]

The result would be 3x^2+7x+2.

If you have any question, tell me and I would be more than happy to help! Thanks.

3 0

3 years ago