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4 years ago

Which equation represents a linear function?

Mathematics

1 answer:

Naddika [18.5K]4 years ago

7 0

The answer is B because the equation is like y=mx (+ or - )c

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A line has a slope of -4 and a y-intercept of 1. What is the equation of the line in slope-intercept form?

Anastaziya [24]

The answer is B because the equation is y=mx+b, where m is the slope and b is the y intercept. In this case m or the slope is -4 and the b or the y intercept is 1 so then just substitute them in and there is your answer

4 0

4 years ago

The observation deck of the willis tower in Chicago Illinois is 1353 feet above the ground elevators lift visitors to that level

Paul [167]

Answer: The the speed of elevators is 22.55.

Explanation:

It is given that observation deck of the willis tower in Chicago Illinois is 1353 feet above the ground elevators lift visitors to that level in 60 seconds.

The speed is the change in distance with respect to time.

$\text{Average Speed}=\frac{\text{Total Distance}}{\text{Total Time}}$

From the given information the total distance is 1353 and the total time is 60 seconds. So by the above formula we get,

$\text{Average Speed}=\frac{1353}{60}$

$\text{Average Speed}=22.55$

Therefore, the speed of elevators is 22.55.

8 0

3 years ago

four percent of newspaper readers wrote a letter to the editor last week. if there were 50 letters received by the editor last w

Alina [70]

Answer:

there are 1250 readers

Step-by-step explanation:

r = readers

4 percent of readers sent letter = 50 recieved letters

r * 4 percent = 50

r * .04 =50

divide by .04 on each side

r = 50/.04

r =1250

5 0

3 years ago

Read 2 more answers

Software to detect fraud in consumer phone cards tracks the number of metropolitan areas where calls originate each day. It is f

DIA [1.3K]

Answer:

the probability that the user is fraudulent is 0.00299133

Step-by-step explanation:

Let be the events be:

G: The user generates calls from two or more areas.

NG: The user does NOT generate calls from two or more areas.

L: The user is legitimate.

F: The user is fraudulent.

The probabilities established in the statement are:

$P (G | L) = 0.01//P (G | F) = 0.30//P (F) = 0.0001//P (L) = 0.9999//$

With these values, the probability that a user is fraudulent, if it has originated calls from two or more areas is:

$P (F|G) = \frac{P(F\bigcap G)}{P(G)} = \frac{P(F)P(G|F)}{P(G)} = \frac{P(F)P(G|F)}{P(F)P(G|F)+P(L)P(G|L)}$

$\frac{(0.0001)(0.30)}{(0.0001)(0.30)+(0.9999)(0.01)} = 0.00299133$

4 0

3 years ago

Jessi sold half her comic books. Then, she bought 9 more. She now has 11 total. How many did she begin with?

Alex Ar [27]

Answer:X+9=11

9-9|11-9

X=2

Step-by-step explanation:When the beginning number is unknown we use “x” to be a place holder. If she got 9 more books we would add 9 to the equation. Finally if 11 is the total, the end of the equation would equal 11.

6 0

4 years ago