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3 years ago

What is -2(x -4) simplified

Mathematics

2 answers:

Charra [1.4K]3 years ago

6 0

Answer:

-2x+8

Step-by-step explanation:

so lets start

you want to distribute the -2 to the parenthesis

so -2(x) = -2x and -2(-4) = 8 because of 2 negatives make a positive

so then you just add them

-2x+8

REY [17]3 years ago

3 0

Answer: $-2x + 8$

Step-by-step explanation:

In order to simplify this we must distribute the -2 to the values inside of the parentheses.

$-2*x = -2x\\\-2 * -4 = 8$

Since two negatives are being multiplied, the product is a positive number.

The final simplified answer is $-2x + 8$ .

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Find x 25 7 х I need help

Murljashka [212]

Answer:

24 = x

Step-by-step explanation:

You use Pythagorean theorem. Since the normal equation is $a^{2} + b^{2} =c^{2}$ , you already have the $c^{2}$ and another side which can be $a^{2}$ or $b^{2}$ .

Because you have the hypotenuse and a side , your equation looks like this now: $7^{2} +b^{2} = 25^{2}$

and when you solve for be you just subtract $25^{2} -7^{2}$ to get 24.

8 0

2 years ago

Two experiments are defined below. An event is defined for each of the experiments. Experiment I: Corrine rolls a standard six-s

-BARSIC- [3]

Answer: The correct answer is option C: Both events are equally likely to occur

Step-by-step explanation: For the first experiment, Corrine has a six-sided die, which means there is a total of six possible outcomes altogether. In her experiment, Corrine rolls a number greater than three. The number of events that satisfies this condition in her experiment are the numbers four, five and six (that is, 3 events). Hence the probability can be calculated as follows;

P(>3) = Number of required outcomes/Number of possible outcomes

P(>3) = 3/6

P(>3) = 1/2 or 0.5

Therefore the probability of rolling a number greater than three is 0.5 or 50%.

For the second experiment, Pablo notes heads on the first flip of a coin and then tails on the second flip. for a coin there are two outcomes in total, so the probability of the coin landing on a head is equal to the probability of the coin landing on a tail. Hence the probability can be calculated as follows;

P(Head) = Number of required outcomes/Number of all possible outcomes

P(Head) = 1/2

P(Head) = 0.5

Therefore the probability of landing on a head is 0.5 or 50%. (Note that the probability of landing on a tail is equally 0.5 or 50%)

From these results we can conclude that in both experiments , both events are equally likely to occur.

3 0

3 years ago

A freight train is traveling at an average rate of 45 miles per hour. Which equation represents the situation?

ollegr [7]

Hi there!

The answer would be A. m = 45h

Hope this helps

6 0

2 years ago