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3 years ago

Solve for x. -1/2 (x+5) = 2x -3/2

Mathematics

1 answer:

Pani-rosa [81]3 years ago

8 0

Answer is a Decimal: x=-0.4

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Mark got 18 out of 25 questions correct on his math test. What percent of the questions did he get correct?

MrRa [10]

To calculate this it is necessary to change ‘ 18 out of 25’ into ‘? out of 100’

So, 18/25 = ?/100

18/25x100 = 72

Mark got 72% on his math test.

6 0

3 years ago

Hey can you please help me posted picture of question

Zinaida [17]

The inverse functions have a property that the composition of two inverse functions always results is x.

From the given options, only the pair given in option B result in the composition equal to x.

$F(x)= \frac{12}{x}-18 \\ \\ 
G(x)= \frac{12}{x+18} \\ \\ 
F(G(x))= \frac{12}{ \frac{12}{x+18} }-18 \\ \\ 
F(G(x))= \frac{12(x+18)}{12}-18 \\ \\ 
F(G(x))=x+18-18=x$

This proves, F(x) and G(x) are inverse of each other.

So the answer to this question is Option B

7 0

3 years ago

0.27 ? 0.3 < > = which one is it????

Ira Lisetskai [31]

Answer:

Step-by-step explanation:

0.27 is less than 0.3. < is the less than symbol because the "mouth" is pointing towards to the larger number.

6 0

2 years ago

Read 2 more answers

Please find the area.

lakkis [162]

Answer:

Step-by-step explanation:

area=15×9+1/2×6×9

=135+27

=162 m²

7 0

4 years ago

A game involves rolling a number cube. You get one point if you roll an even number and negative one point if you roll an odd nu

Burka [1]

Answer: The sample space is {1, 2, 3, 4, 5, 6}.

The expected value for the game is 0.

The game is fair because the expected value is equal to 0.

Step-by-step explanation:

For rolling a dice the sample space = {1, 2, 3, 4, 5, 6}

As there are equal number of odd numbers as well as even numbers and we get one point if we roll an even number and negative one point if you roll an odd number, therefore, the expected value = 0

Therefore, the game is fair because the expected value is equal to 0.

7 0

3 years ago

Read 2 more answers