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3 years ago

1 over 2 added to 2 over 5

2 answers:

6 0

1 over 2 added to 2 over 5
For this case, the first thing we must do is rewrite the expression:
(1/2) + (2/5)
Now add the fractions taking into account the cross product:
(1/2) + (2/5) =
((5) + (4)) / (10) =
Finally, we add the values that are in the numerator to obtain the final result:
(9/10)
Answer:
(1/2) + (2/5) = (9/10)

Natalka [10]3 years ago

4 0

1/2 + 2/5 = 5/10 + 4/10 = 9/10

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Free_Kalibri [48]

The maximum height is 144 feet.

The maximum height is the y-coordinate of the vertex. To find the vertex, we first use x = -b/2a. For our information, that is x=-64/2(-16) = -64/-32 = 2.

Now we substitute this into the equation:
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3 years ago

3. x + 4y = 30 x - 2y = 0

kolbaska11 [484]

Answer:

Step-by-step explanation:

Given that:

x + 4y = 30

x - 2y = 0

Subtracting both equations:

6y = 30

y = 30/6

y = 5

Putting in above equation

x + 4(5) = 30

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3 years ago

Item 10 At 1:00 P.M., you have 24 megabytes of a movie. At 1:15 P.M., you have 96 megabytes. What is the download rate in megaby

alex41 [277]

Answer:

4.8 megabytes / minute.

Step-by-step explanation:

At the beginning of recording the download you have 24 megabytes.

15 minutes later, you have 96 megabytes.

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3 0

3 years ago

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erastovalidia [21]

The right answer is 40 cm

please see the attached picture for full solution

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8 0

3 years ago

I report if u guess or answer randomly. Which confidence level would produce the widest interval when estimating the mean of a p

kap26 [50]

Answer:

B. 61%

Step-by-step explanation:

When we have the standard deviation of a sample, we use the t-distribution.

The width of an interval is related to the margin of error, which is given by the following equation:

M = T*s

In which T is related to the confidence level(and the sample size) and s is the standard deviation of the sample. Higher confidence levels have higher values of T.

A higher margin of error means that the interval is wider. To have a higher margin of error, we desire a higher value of T, which is achieved with a higher confidence level.

So the correct answer is:

B. 61%

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3 years ago