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Aloiza [94]
3 years ago
6

Please answer the question below

Mathematics
1 answer:
My name is Ann [436]3 years ago
6 0
20/t=v and 12/t=(v-4)  solve both for t

t=20/v  and t=12/(v-4)  since t=t

20/v=12/(v-4)  cross multiplying...

20v-80=12v

8v-80=0

8v=80

v=10mph

The outbound speed was 10mph
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What is the answer for this Problem?
geniusboy [140]

Answer:

Increasing on the interval(s) -2\leq x\leq -4

Decreasing on the interval(s) -1\leq y\leq 1

Step-by-step explanation:

Anytime the graph is going upward, the function is increasing. However, anytime the graph goes down, the function is decreasing. Look at the image below for further reference. Also, when the function is increasing, the slope is positive, and when the function is decreasing the slope is negative.

The increasing interval of the graph is -3

The decreasing interval of the graph is 0.5

Since the values are in the middle of the interval, it automatically becomes the answer.

5 0
3 years ago
Choose the equation in point slope form that passes through the point (3,-4) and has a slope of 4
netineya [11]

Answer:

y+4=4(x-3)

Step-by-step explanation:

y-y1=m(x-x1)

y-(-4)=4(x-3)

y+4=4(x-3)

4 0
3 years ago
I need help with my homework can anyone help ?
attashe74 [19]
I can help with part b
6 0
3 years ago
Write the equation of an exponential function that passes through the points (2,48) and (5,750).
Otrada [13]
Ok, so the function form is y = a * bx.
Substitute in the values:
750 = a * b5
and
48 = a * b2
Then divide the two equations:
750/ 48 = (a * b5) / (a * b2)
So:
15.625 = b3
Take the cube root of both sides:
2.5 = b
Now, substitue b into one of the equations (the one with 48 has smaller numbers and is easier to work with.)
48 = a * 2.52
Simplify.
48 = a * 6.25
Divide both sides by 6.25
7.68 = a
Now substitute in a and b to write the exponential function:
y = 7.68 * 2.5x
7 0
3 years ago
Question 7 of 10
solniwko [45]

Answer:

what may be true

Step-by-step explanation:

i just took the test and got the answer correct, i hope this helps.

5 0
2 years ago
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