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Alisiya [41]
3 years ago
7

Pleaseeeeeeeee help me :)

Mathematics
1 answer:
Korolek [52]3 years ago
8 0

Answer:

f(x) = 5 - x has a negative slope.

Step-by-step explanation:

Y = mx + c is the general form for a straight line.

Whem m is negative the slope is negative

Consider  f(x) = 5 - x

f(x) = -x + 5

- so the slope is negative.

For g(x)  we see that g(x) increases with x so the slope id positive.

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Find the mean of the data set. –6 3 –2 6 7 –3 –5
LuckyWell [14K]

The mean of a dataset is given by the sum of the elements in the dataset, divided by the dataset's size:

\dfrac{-6+3-2+6+6-3-5}{7} = -\dfrac{1}{7}

6 0
3 years ago
Write the fraction or mixed number as a percent.<br> 1 21/50 =
Eddi Din [679]
242% should be the answer
4 0
3 years ago
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A scientist is studying the growth of a particular species of plant. He writes the following equation to show the height of the
iogann1982 [59]

Answer:

The average of rate was of 0.4314 cm/day, which means that on average, during this interval, the plant grew by 0.4314 cm each day.

Step-by-step explanation:

Average rate of change:

The average rate of change of a function f(x), from x = a to x = b, is given by:

A = \frac{f(b)-f(a)}{b-a}

In this question:

f(x) = 12(1.03)^n

From n = 3 to n = 10

a = 3, b = 10

f(b) = f(10) = 12(1.03)^{10} = 16.13

f(a) = f(3) = 12(1.03)^{3} = 13.11

Average rate of change:

A = \frac{f(b)-f(a)}{b-a} = \frac{16.13-13.11}{10-3} = 0.4314

The average of rate was of 0.4314 cm/day, which means that on average, during this interval, the plant grew by 0.4314 cm each day.

4 0
3 years ago
If 5b=6a+16 and 9a=7b-20, then what are the values of a and b? show work.
Strike441 [17]

Answer:

a = 4, b = 8

Step-by-step explanation:

Rewrite 5b=6a+16 and 9a=7b-20 vertically:

5b=6a+16

9a=7b-20

Let's use substitution.  Solve the first equation for b:

       6a + 16

b = --------------

             5

Substitute this result into the second equation:

9a = 7(b) + 16, or

             6a + 16

9a = 7*-------------- - 20

                   5

Eliminate the fraction by multiplying all three terms by 5:

45a = 7(6a + 16) - 100, or

3a =        112 - 100, or:

3a = 12, which leads to a = 4.  

Find b by subbing 4 for a in either of the given equations:

5b = 6(4) + 16, or

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