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2 years ago

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Lesson 9 functions, equations, and graphs unit test part 1

1 answer:

Tatiana [17]2 years ago

6 0

Answer:

what is the question?

Step-by-step explanation:

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75% of what number is 42?

Anna35 [415]

75 42
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100 x

75 x= 4200
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75 75

x = 56

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3 years ago

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. A biologist is comparing the growth of a population of flies per week to the number of flies an iguana will consume per week.

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We are given the equation <span>3^x = 2x + 1 in which x as the number of days of the population of flies and the number of flies consumed by iguana each week. In this case, the other equation described when x =7 population is not more than 8. The graph is a logarithmic graph</span>

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Enter your answer and show all the steps that you use to solve this problem.

valina [46]

You will save $9

Convert 20% to decimal

Each % is 0.01 so 20×0.01=0.2

Then multiply

45×0.2=9

6 0

3 years ago

The question is in the picture. Plz helppp it is due tonight

Mkey [24]

Answer:

Step-by-step explanation:

We're given one equation, we have to find the other equation and solve each for 200, and whichever has the lower x is the winner

for Jayden we are given

$(0, 48), (1, 56), (2, 64), (3, 72), (4, 80)$

This looks to be a line. The y values are each separated by a common difference

We can use two points to describe the line

$m = \frac{y_2-y_1}{x_2-x_1} = \frac{80-48}{4-0} = \frac{32}{4} = 8\\ K = 8m + b\\48 = 8(0) + b\\b = 48\\so\\K = 8m + 48$

Now we can set both $K = 8m + 48$ and $K = m^2 + 10$ equal to 200

$200 = 8m + 48\\152 = 8m \\m = \frac{152}{8} = 19$

$200 = m^2 + 10\\m^2 = 190\\m = \sqrt{190} = 13.784$

Keiko's blog will reach 200 subscribers fastest.

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2 years ago

What’s name of this?

Law Incorporation [45]

Answer

D.pentagonal pyramid

Step-by-step explanation:

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2 years ago