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kirza4 [7]
3 years ago
11

Today's high temperature is 72°F. If yesterday's high temperature was 87°F, what was the change in high temperatures

Mathematics
1 answer:
Crazy boy [7]3 years ago
7 0

Answer:

15 degrees Fahrenheit

Step-by-step explanation:

Subtract the temperatures

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Suppose the probability of producing a defective light bulb from a production line is the same over an interval of 90 minutes. W
butalik [34]

Answer:

C) Uniform distribution

Step-by-step explanation:

An uniform probability is a case of probability in which each outcome is equally as likely. In this case, the probability of producing a defective light bulb from a production line is the same over an interval of 90 minutes, so the correct answer is C.

We can calculate the probability.

Uniform probability distribution

For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.

The probability that we find a value X lower than x is given by the following formula.

P(X \leq x) = \frac{x - a}{b-a}

For this problem, we have that:

Uniformily distributed over a 90 minute interval, that is, between 0 and 90, so b = 90 and a = 0.

We want to find P(X \leq 15) = \frac{15-0}{90-0} = 0.167

8 0
3 years ago
What is the inverse of the function f(x) = 8x+1
Yanka [14]

Answer:

f⁻¹(x) = (x - 1)/8

Or

f⁻¹(x) = 1/8 x - 1/8

Step-by-step explanation:

To find the inverse of a function, switch the "x" and "y" variables, then isolate "y".

Remember <u>"f(x)" is the same thing as "y"</u>. Change from function notation to "y".

f(x) = 8x + 1

y = 8x + 1        

<u>Switch the "x" and "y" variables</u>

x = 8y + 1

<u>Isolate "y"</u>. Move the "y" variable to the left for standard formatting

8y + 1 = x            

8y + 1 - 1 = x - 1               Subtract 1 from both sides

8y = x - 1

\frac{8y}{8}=\frac{x-1}{8}        Divide both sides by 8 and simplify

y=\frac{x-1}{8}                  Inverse equation

y=\frac{1}{8}x-\frac{1}{8}             Slope-intercept form

<u>Use function notation</u>, change "y"

f^{-1}(x)=\frac{x-1}{8}                      Simplified

f^{-1}(x)=\frac{1}{8}x-\frac{1}{8}                   Slope-intercept form

6 0
3 years ago
When adding two fractions do i leave the denominator how it is?
telo118 [61]
Hoi!

If the two fractions have a common denominator, then yes, you do. Only add the numerators. :)
7 0
4 years ago
Look at the drawing below.
Ratling [72]

Answer:

\small\mathfrak\green{2x + 10 + 46 = 180 \:   = linear \: pair} \\  \\ \small\mathfrak\red{hope  it  helps...}

8 0
3 years ago
What equation represents a line which is parallel to the y-axis
sasho [114]

Answer:

y-axis is x = 0

Step-by-step explanation:

if P(x, y) is any point on AB, then x = a. Hence, the equation of a straight line parallel to the y-axis at a distance from it is x = a. The equation of the y-axis is x = 0, since, the y-axis is parallel to itself at a distance 0 from it.

4 0
3 years ago
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