What is -7*(-2)= ppppppppllllllllzzzz hhhheeellllppp

Mathematics

1 answer:

Sveta_85 [38]3 years ago

6 0

Answer:

Step-by-step explanation:

If you are multiplying with a negative, then the end result changes into a negative. Remember, a negative times a negative is a positive.

-7 * -2 = 14.

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-21 +3 = -9r in the form of -2(x-p)2+q=

denis-greek [22]

Answer:

1.28 Step-by-step explanation: got

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2 years ago

How do you solve this someone help please

tekilochka [14]

The film lasted until 8:27.

This is true because 102 minutes is 1 hour and 42 minutes. If you add 1 hour and 42 minutes onto 6 hours and 45 minutes, the beginning time then. You would get 8 hours and 27 minutes.

This is my equation. ---->
6:45
+1:42
_____
7:87 <---- But that isn't correct because 87 minutes is over an hour.

So if you do the correct numbers you would get 8:27 as your answer!

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2 years ago

The following are the temperatures of 10 days in winter in °C.

laila [671]

Answer:

0.9

Step-by-step explanation:

To find the mean temperature, we have to add all of the numbers together and divide that by the amount of numbers there are.

6 + 5 + 3 + -4 + 3 + -3 + 2 + -1 + -2 + 0 = 9

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2 years ago

From a list of ten books, how many groups of 4 books can be selected

andreyandreev [35.5K]

First you have all ten books, but then every time after, you loose one because you can't put the same book in the group twice.

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3 years ago

In kilometers, the approximate distance to the earth's horizon from a point h meters above the surface can be determined by eval

Maslowich

In kilometers, the approximate distance to the earth's horizon from a point h meters above the surface can be determined by evaluating the expression

$d= \sqrt{12h}$

We are given the height h of a person from surface of sea level to be 350 m and we are to find the the distance to horizon d. Using the value in above expression we get:

$d= \sqrt{12*350}=64.81$

Therefore, the approximate distance to the horizon for the person will be 64.81 km

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3 years ago