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koban [17]
3 years ago
13

Tell weather the lines for each pair of equations are parallel,perpendicular,or neither

Mathematics
1 answer:
Diano4ka-milaya [45]3 years ago
6 0

ydhhdkxgidhd dhdidbdogdishzysgddhxhskzgy72+3-_7_+_8'

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Carmen runs each lap in 4 minutes. She will run less than 28 minutes today. What are the possible numbers of laps she will run t
drek231 [11]

Answer:

# of laps < 28, the number of laps will be less than 28.

1 lap = 4 minutes

28 laps = 112 minutes

Because we want less than 28 laps,

27 laps = 108 minutes

She can run any amount of laps less than 28.

3 0
3 years ago
For the equation y = -4x -8
valina [46]

Answer:

Slope = -4 y-intercept= -8

Step-by-step explanation:

This equation is in slope intercept form, which is always written in the format of y=mx+b. The m means slope and the b means y-intercept, so you can just substitute the variables for the values.

5 0
2 years ago
Read 2 more answers
John invests $5625 into a savings account with a fixed annual interest rate of 7% compounded continuously. How many years will i
mihalych1998 [28]

Answer:

Step-by-step explanation:

use the formula A=P(1+r)^t

37233.95=56259(1+.07)^t

37233.95=60197.13^t

8 0
3 years ago
A small airplane takes off from point A and continues to climb upward in a straight line, as shown in the diagram. What is the p
harkovskaia [24]
<h3>Answer: Choice D.  12,600 feet</h3>

============================================================

Explanation:

We have two similar triangles here, so we can set up the proportion below to solve for x

5200/(5200+6500) = 5600/x

5200/11700 = 5600/x

5200x = 11700*5600 .... cross multiply

5200x = 65,520,000

x = (65,520,000)/(5200)

x = 12,600 which shows why the answer is choice D

side note: 12,600 ft = 2.386 miles approximately

6 0
3 years ago
Please solve for me!!
kifflom [539]

Answer:

8:30 PM

Step-by-step explanation:

Let's say that x is minutes since 6:20 PM, and y is position in miles.

Since Jonathan drives at a constant rate, the position vs time graph is linear.  Two points on the line are (0, 75) and (20, 85).  The slope of the line is:

m = Δy / Δx

m = (85 − 75) / (20 − 0)

m = ½

So the equation of the line is:

y = ½ x + 75

We want to find x when y is 140.

140 = ½ x + 75

65 = ½ x

x = 130

So 130 minutes after 6:20 PM is when Jonathan's position will be 140 miles.  130 minutes is 2 hours and 10 minutes.  So the time will be 8:30 PM.

3 0
3 years ago
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