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3 years ago

NEED ANSWER ASAP. AND EXPLAIN STEP BY STEP PLEASE..............................................

Mathematics

1 answer:

notsponge [240]3 years ago

6 0

Easiest way to do it is add the X's together and then half it, same with the Y's.
X) -1+-6= -7 -7/2,
Y) 5+-2= 3 3/2
So the answer is B.

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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

C(n)=−6+5(n−1) find the 8th term in the sequence

AleksAgata [21]

Answer:

Step-by-step explanation:

n = 8

c(n) = -6+5(n - 1)

c(8) = -6+5(8 - 1)

c(8) = -6+5( 7)

c(8) = -6+5(7)

c(8) = -6+35

c(8) = 29

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

Here is the series.

-6

-1

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3 years ago

Find the volume of this triangular prism. 7m, 9m, and 10m

jeka94

Answer:

630m³

Step-by-step explanation:

volume= 7m×9m×10m=630m³

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2 years ago

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Marysya12 [62]

Answer:

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Step-by-step explanation:

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3 years ago

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babymother [125]

Y=-6 would be one equation

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2 years ago