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SpyIntel [72]
2 years ago
8

Find a. (f+ g)(x) b. (f+g)(7). f(x) = 5x +2, g(x) = 5x – 1 a. (f+g)(x)=

Mathematics
1 answer:
jonny [76]2 years ago
4 0
Answer:
A. 10x + 1
B. 71
(WORK SHOWN BELOW)

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Rob is saving to buy a new MP3 player. For every $13 he earns babysitting, he saves $8. On Saturday, Rob earned $65 babysitting.
Vedmedyk [2.9K]

Answer:

60

Step-by-step explanation:

So you first start off with 13 and 8 you subtract it and get five so he uses 5 every time he gets paid and you subtract 5 from 65 and get 60

--Hope this helps

6 0
3 years ago
If Jeannie invests $7,250 at a rate of 12%,
Tanya [424]
The answer is $8,700
4 0
3 years ago
Blood is a buffer solution. When carbon dioxide is absorbed into the bloodstream, it produces carbonic acid and lowers the pH. T
Irina18 [472]

Answer:

x ≅ 20.10 torr

Step-by-step explanation:

Given that the equation which models blood pH in the question is;

pH(x)=6.1+log(800/x)

where;

pH = 7.7

x = partial pressure of carbon dioxide in arterial blood, measured in torr.

we are asked to find (x)

In order to do that, we use the given equation:

pH(x)=6.1+log(800/x)

since pH = 7.7

7.7 = 6.1 + log (800/x)

7.7 - 6.1 =  log (800/x)

1.6 =  log (800/x)

10^{1.6}= \frac{800}{x}

x= \frac{800}{10^{1.6}}

x = 20.09509145

x ≅ 20.10 torr

4 0
3 years ago
Choose an appropriate unit of measurement for each quantity
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4 0
3 years ago
On a given day at a local amusement park, 77% of those in attendance rode the roller coaster. There were 1,200 people at the par
Svetach [21]

924

77% of 1200 is 924

5 0
3 years ago
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