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igomit [66]
4 years ago
15

1/2(4•5)-2 to the power of 3

Mathematics
1 answer:
gulaghasi [49]4 years ago
5 0
The answer is -40 because 1/2 of 4 is 2 and 1/2 of 5 is 2.5, 2•2.5=5. -2•-2•-2=-8. 5•-8=-40
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A group of adults plus one child attend a movie at a movie theater. Tickets cost $9 for adults and $4 for children. The total co
egoroff_w [7]

Answer:

There is <u>8</u> adults and <u>1 </u>child

Step-by-step explanation:

<u>$78 - $6 = $72</u>

<u>$72 divided by 9 = 8</u>

you would add nine <u>8</u> times and add 6 to it then it would be $78
Hope this helps you! :)

6 0
3 years ago
Plx help i need to get this so I can be ungrounded ​
galben [10]

Answer:

2

Step-by-step explanation:

8 0
3 years ago
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31 - 8a = 5 ( - 4 - 5a )
timama [110]

Answer:

Step-by-step explanation:

31 - 8a = 5(-4 - 5a)

First, on the right-hand side of the equation, let's distribute the 5 to each term in the parenthesis:

31 - 8a = -20 - 25a

Now, let's move all the terms with an a to the left-hand side, and everything else to the right-hand side of the equation:

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Finally, let's divide each side by 17 to get a by itself on the left-hand side of the equation:

a = -3

4 0
3 years ago
Write an equation that represents this comparison sentence. 32is 8 times as many as 4
12345 [234]
32 = 8 x 4  or 32 = 4 x 8
8 0
4 years ago
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A formula for the relationship between weight and blood pressure in children is given by the formula below where P(x) is measure
photoshop1234 [79]

Answer:

The rate of change of blood pressure at the 50-pound weight level is 0.26

The rate of change of blood pressure at the 80-pound weight level is 0.16

Step-by-step explanation:

We have, P(x) = 12.9(9 + ln x)

We need to compute the rate of change of blood pressure P(x) so, we will differentiate the function P(x) with respect to x.

P(x) = 12.9(9 + ln x)

P(x) = 116.1 + 12.9ln x

Differentiating with repect to x:

\frac{d(P(x))}{dx} = 0 + 12.9 (\frac{1}{x})

\frac{d(P(x))}{dx} = 12.9 (\frac{1}{x})

The differential of ln x is \frac{1}{x} and the differential of constant terms is 0.

The rate of change of blood pressure at the 50-pound weight level can be calculate by substituting 50 in place of x, so

\frac{d(P(x))}{dx} = 12.9 (\frac{1}{x})

          = 12.9 * (1/50)

          = 0.258

\frac{d(P(x))}{dx} = 0.26

Similarly, The rate of change of blood pressure at the 80-pound weight level can be calculate by substituting 80 in place of x, so

\frac{d(P(x))}{dx} = 12.9 (\frac{1}{x})

          = 12.9 * (1/80)

          = 0.16125

\frac{d(P(x))}{dx} = 0.16

6 0
3 years ago
Read 2 more answers
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