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3 years ago

How do you solve the function y = 2.5^x for y=20

1 answer:

6 0

$y=2.5^x;\ y=20\\\\2.5^x=20\\\\log_{2.5}2.5^x=log_{2.5}20\\\\x=log_{2.5}20\\\\x=log_{2.5}(2.5\cdot8)\\\\x=log_{2.5}2.5}+log_{2.5}8\\\\x=1+log_{2.5}8$

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X+4 over<br> x^2−5x+6<br> ÷ <br> x^2−16 over<br> x+3

Amiraneli [1.4K]

Answer:

x+3 over (x-3)(x-2)(x-4)

8 0

2 years ago

What is the approximate area of the circle shown below

JulijaS [17]

Area of circle= pi r^2
We don’t have the radius so to find it we divide the diameter by 2
70/2= 35
A=pi 35^2
=3849.9in^2
Or choice B

3 0

2 years ago

Read 2 more answers

Ms. MacArthur surveyed students to find the amount of time they spent reading and watching TV last week. The scatter plot below

ivann1987 [24]

Answer:

No, because James has confused the hours of watching tv with the hours of reading.

Step-by-step explanation:

This is incorrect. According to the graph, what we have is a point on the line at (6, 10), which implies that a student who reads for 6 hours will watch tv for 10 hours.

It is very likely that James is confusing the hours of watching tv with the hours of reading.

4 0

3 years ago

A polling organization is asking a sample of U.S. Adults how many pets they own. The frequency distribution below shows the resu

fiasKO [112]

Answer:

The probability that the next person asked has two pets is 0.176

Step-by-step explanation:

The given parameters are;

The frequency distribution of the number of pets owned is presented as follows;

Number of Times ${}$ Frequency ${}$

None ${}$ 354

One ${}$ 981

Two ${}$ 352

Three ${}$ 200

Four ${}$ 113

The probability that the next person asked has two pets = Proportion of the sample that own two pets = 352/(354 + 981 + 352 + 200 + 113) = 0.176

Therefore, the probability that the next person asked has two pets = 0.176

7 0

3 years ago

What is the value of 2 over 5×5ovet4÷2over3

Lady bird [3.3K]

Answer:

3/4

Step-by-step explanation:

Dividing by a fraction is the same as multiplying by its reciprocal.

$\dfrac{2}{5}\times\dfrac{5}{4}\div\dfrac{2}{3}=\dfrac{2}{5}\times\dfrac{5}{4}\times\dfrac{3}{2}\\\\=\dfrac{(2)(5)(3)}{(2)(5)(4)}=\boxed{\dfrac{3}{4}}$

8 0

2 years ago