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3 years ago

Please help! use the net to find the lateral area of the prisim

Mathematics

1 answer:

Sergio039 [100]3 years ago

7 0

Answer: 832 cm².

Step-by-step explanation:

1. To calculate the lateral area of the prism by using the net you must:

- Calculate the perimeter of the base:

$P=2l+2w$

Where l is the lenght and w is the width:

$l=17cm\\w=15cm$

Then:

$P=2(17cm)+2(15cm)=64cm$

- Now you must multiply the perimeter by the height. The height is 13 cm.

Then, the lateral surface area is:

$LA=64cm*13cm=832cm^{2}$

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Two stores sell the same refrigerator for the same original price. Store A advertises that the refrigerator is on sale for 15% o

andrew-mc [135]

I'm not sure about the answer, but this is how I would do it, since 15% and $150 are the same based on the question. do let me know if it's right! :)

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3 years ago

A car's velocity changes at a rate of 36 miles per hour in 0.5 hour.

kotegsom [21]

Answer:

Step-by-step explanation:

In order to find the acceleration we need first to defined it, so:

acceleration=((final velocity)-(initial velocity))/time interval

$a=(vf-vi)/dt$

But (vf-vi) actually represents the velocity change, so (vf-vi)/dt represents the velocity change rate. This means that in our case:

$a=(36miles/hour)/(0.5hours)$

$a=72miles/hour^2$

In conclusion the acceleration is $a=72miles/hour^2$ , without units just 72.

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3 years ago

PLEASE HELP Which of the following are true if event A and B are independent

makkiz [27]

Answer:

a) $P(B/A) = P(B)$

Step-by-step explanation:

Step(i):-

Given that A and B are independent events

P(A∩B) =P(A) P(B)

we will use the conditional probability

$P(A/B) = \frac{P(AnB)}{P(B)}$

$P(B/A) = \frac{P(AnB)}{P(A)}$

Step(ii):-

Given that A and B are independent events

P(A∩B) =P(A) P(B)

$P(B/A) = \frac{P(AnB)}{P(A)}$

$P(B/A) = \frac{P(A)P(B)}{P(A)} = P(B)$

$P(B/A) = P(B)$

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3 years ago

Determine whether the graph represents a linear or nonlinear function. Explain.The graph represents a

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Answer:

The graph represents a nonlinear function, because the graph isn't a line.

Reason: A linear function is a graph with a straight line, in this case the graph isn't straight, so it is nonlinear function.

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2 years ago

Customers of a phone company can choose between two service plans for long distance calls. The first plan has a $13 monthly fee

Tpy6a [65]

Answer:

With 250 minutes of calls the cost of the two plans is the same

Step-by-step explanation:

We must write an equation to represent the cost of each call plan.

For the first plan

Monthly fee

$ 13

Cost per minute

$ 0.17

If we call x the number of call minutes then the equation representing the cost c for this plan is:

$c = 13 + 0.17x$

For the second plan

monthly fee

$ 23

Cost per minute

$ 0.13

If we call x the number of call minutes then the equation representing the cost c for this plan is:

$c = 23 + 0.13x$

To know when the cost of both plans are equal, we equate the two equations and solve for x.

$13 + 0.17x = 23 + 0.13x\\\\0.17x -0.13x = 23-13\\\\0.04x = 10$

$x = \frac{10}{0.04}$

$x = 250\ minutes$

With 250 minutes of calls the cost of the two plans is the same: $55.5

3 0

3 years ago