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mr_godi [17]
3 years ago
10

Is ratio 4.2:1.5 proportional to 12.6:4.5

Mathematics
1 answer:
Gennadij [26K]3 years ago
5 0
If we divide 12.6/4.5 by 3 we receive 4.2/1.5. So yes they are proportional. <span />
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Problem
PolarNik [594]

Answer:

The equation of this line would be y = -8

Step-by-step explanation:

Since y = 9 is a horizontal line, the parallel line must also be horizontal. All horizontal lines can be written as y = (a number). That number can be found as the y-coordinate in the ordered pair, which is -8.

y = -8

8 0
3 years ago
What is the area of rectangle ABCD in square units
DedPeter [7]

Answer:

I don't see a picture of the rectangle but all you would have to do s multiply the width of the rectangle by its height.

6 0
3 years ago
Read 2 more answers
The space shuttle flight control system called PASS (Primary Avionics Software Set) uses four independent computers working in p
tigry1 [53]

Answer:

f_X(k)=\binom{4}{k}0.003^k0.997^{4-k}

Step-by-step explanation:

Recall that a <em>probability mass function</em> defined on a discrete random variable X is just a function that gives the probability that the random variable equals a certain value k

f_X(k)=P(X=k)

In this case we have the event  

“The computer will ask for a roll to the left when a roll to the right is appropriate” with a probability of 0.003.

Then we have 2 possible events, either the computer is right or not.

Since we have 4 computers in parallel, the situation could be modeled with a binomial distribution and the probability mass function

f_X(k)=\binom{4}{k}0.003^k0.997^{4-k}

This gives the probability that k computers are wrong at the same time.

6 0
3 years ago
If a rectangular piece of metal has 27.75 square inches what is the length and width?
svp [43]

We cannot get further information about the dimensions of the piece since the number of variables is greater than the number of equations.

<h3>What are the dimensions of a rectangular piece of metal?</h3>

By geometry we know that the area of the piece of metal is equal to the product of its length and width, then we must find two <em>real</em> numbers such that:

l · w = 27.75, where l, w > 0.

Unfortunately, we cannot get further information about the dimensions of the piece since the number of variables is greater than the number of equations. We need at least one equation to find an <em>unique</em> solution.

To learn more on rectangles: brainly.com/question/15019502

#SPJ1

4 0
2 years ago
Annie estimates that a bookcase is 78.25 inches .the actual height is 75.50 inches
UkoKoshka [18]
Percent error = (estimate - real)/(real) * 100

percent error = (78.25 - 75.50)/(75.50) * 100

percent error = 3.6%
8 0
3 years ago
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