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lyudmila [28]
3 years ago
11

Find the distance from the point (1, 4) to the line y = 1/3x – 3. A) 2(square root) 10 units B) 4 units C) 4(square root) 2 unit

s D) 20 units
Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
6 0

Answer:

Distance between line and point =

4√5 -3/2√10

Step-by-step explanation:

Distance between the line is

= √ ((9-0)²+(0+1)²)

= √ (89+1)

= √90

= 3√10

Half of the line = 3/2√10

Distance of one side of the line and the point.

= √((9-1)²+(0-4)²)

= √((8)²+(-4)²)

=√64+16

= √80

= 4√5

Distance between line and point =

4√5 -3/2√10

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a cross section of a parabolic glass mirror of the Hubble space telescope shown can be modeled by the graph of the function y=0.
PilotLPTM [1.2K]

You need to divide this one :)


Hope this helps

8 0
3 years ago
At practice, Tom does three times as many push-ups as Justin, and also 50 jumping jacks. He does 72 exercises in
Sunny_sXe [5.5K]
X= 7 1/3
Explanation- Take 72 and subtract 50 from that giving you 22. Then take 22 and divide it by 3 to get 7.3333333333333 (repeats) or 7 1/3
8 0
3 years ago
The summer has ended and it’s time to drain the swimming pool. 20 minutes after pulling the plug, there is still 45 000L of wate
WITCHER [35]

Answer:

  a) -900 L/min

  b) 63000 L

  c) v = -900t +63000

  d) 7200 L

Step-by-step explanation:

a) You are given two points on the curve of volume vs. time:

  (t, v) = (20, 45000) and (70, 0)

The rate of change is ...

  Δv/Δt = (0 -45000)/(70 -20) = -45000/50 = -900 . . . . liters per minute

__

b) In the first 20 minutes, the change in volume was ...

  (20 min)(-900 L/min) = -18000 L

So, the initial volume was ...

  initial volume -18000 = 45000

  initial volume = 63,000 . . . . liters

__

c) Since we have the slope and the intercept, we can write the equation in slope-intercept form:

  v = -900t +63000

__

d) Put the number in the equation and do the arithmetic.

When t=62, the amount remaining is ...

  v = -900(62) +63000 = -55800 +63000 = 7200

7200 L remain after 62 minutes.

6 0
3 years ago
What is the constant rate of change shown in the graph?
AnnyKZ [126]

Answer:

10

Step-by-step explanation:

For every lawn mowed, the amount earned increases by 10 dollars

8 0
3 years ago
The rectangle below has an area of x^2-25 square meters and a length of x+5.
Archy [21]

Answer:

(x-5)

Step-by-step explanation:

factor the equation and the sign is x-5 because the equation has to be negative at the 25.

7 0
4 years ago
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