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olga55 [171]
3 years ago
12

Evaluate the expression. 52 – 4.6 +11 Enter your answer in the box.

Mathematics
1 answer:
fgiga [73]3 years ago
6 0
52-4.6+11
52-15.6
36.4
pemdas
(), ^2, x, 1/2 ,+ ,-
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$36
I think
$0.89 rounds up to $1.00
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then multiply each by 9 for the 9 children
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then add together
9+9+18=36
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Nour drove from the Dead Sea up to Amman, and her altitude increased at a constant rate. When she began driving, her altitude wa
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Just divide 400 from 2 then 1000

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Help !!! with 14 please :))
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Since p is an obtuse angle 
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3 years ago
Paper plates cost $8 per package and plastic utensils cost $5 per package. Your supplier delivers 15 packages for a total cost o
Fittoniya [83]
To find the total of what you sold for each package, you'll need to write two equations. Know that x = paper plate packages and y = utensil packages.
First, x + y = 15 shows that there has to be fifteen packages, and 8x + 5y = 90 shows the $ made from selling a certain number of packages.
Next, you can solve by substitution, so change x + y = 15 to y = 15 - x.

To find our x, substitute the y in 8x + 5y = 90 to get
8x + 5(15 - x) = 90
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Combine the X's and subtract the 75: 3x = 15
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8 0
3 years ago
Help with num 9 please. thanks​
Alik [6]

Answer:

See Below.

Step-by-step explanation:

We want to show that the function:

f(x) = e^x - e^{-x}

Increases for all values of <em>x</em>.

A function is increasing whenever its derivative is positive.

So, find the derivative of our function:

\displaystyle f'(x) = \frac{d}{dx}\left[e^x - e^{-x}\right]

Differentiate:

\displaystyle f'(x) = e^x - (-e^{-x})

Simplify:

f'(x) = e^x+e^{-x}

Since eˣ is always greater than zero and e⁻ˣ is also always greater than zero, f'(x) is always positive. Hence, the original function increases for all values of <em>x.</em>

8 0
3 years ago
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