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marishachu [46]
2 years ago
7

The graph shows the distance, y in miles, of a moving train froma station for a certain period of time, x, in hours:

Mathematics
1 answer:
nlexa [21]2 years ago
7 0
The constant speed or the mph is 150 miles per hour
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If $42,000 is invested at 7% in a savings account for 8 years, what is the final amount monthly and continuously?
aivan3 [116]

Answer:

7,000

Step-by-step explanation:

so I think u divide $42,000 by 8 and then by 7%.

yea

5 0
3 years ago
The function rule T(m)=450-8m represents the amount of water T(m) (in liters) in a holding tank after being drained at a rate of
suter [353]
Well they give you the equation and they want you to solve for time given that you know the amount of water in the tank.  They tell you T=274 and that

T=450-8m  so using the value T=274 in the equation to the left gives you:

274=450-8m  subtract 450 from both sides

-176=-8m  divide both sides by -8

22=m

So 22 minutes have passed when there is 274L remaining...
7 0
3 years ago
Read 2 more answers
During a test period, an experimental group of 10 vehicles using an 85 percent ethanol-gasoline mixture showed mean CO2 emission
Aleksandr-060686 [28]

Answer:

Probably unequal  ( B )

Step-by-step explanation:

<u>experimental group = 10</u>

using 85% ethanol gasoline

mean = 240 pounds per 100 miles

standard deviation = 20 pounds

<u>control group = 14 vehicles </u>

using regular gasoline

mean = 252 pounds per 100 miles

standard deviation = 15 pounds

comparing  the sample variance of each group shows that they are probably unequal using the equation below

Variance for a sample set of data = ∑ ( x - X ) ^2 / n - 1

where n = number of events

X = mean value

x = value of events

8 0
2 years ago
if x is a positive integer, which expression is equivalent to 4SqrRoot x^3 over 5SqrRoot x^2? Assume x &gt; 0
insens350 [35]

Answer list is a) 20√7 b)x(20√x+3) c)6√x^5/x^2 d)x^3(6√x^5 I want some help with this as well

3 0
3 years ago
Read 2 more answers
Find the two pairs of integers whose sum is -6
MaRussiya [10]

Answer:

1, -7

Step-by-step explanation:

any whole number(s) that result in -6 will be your answer.

x+y= -6

5 0
3 years ago
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