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4 years ago

Can somebody help with geometry? I need to know how to prove it to be a rectangle. I already proved parallelogram.

Mathematics

1 answer:

Vanyuwa [196]4 years ago

8 0

I'm not sure how to give you solid proof, like an equation or something, but you can see that out of the four coordinates, two of them have the y-value of 4 and two of them have the y-value of 2. Also, there is 1.5 in between each x-value that is paired with the same y-value... if that makes sense. So for (0.5, 2) and (3, 2), there is 1.5 in between 0.5 and 3. I hope this helps! Sorry it's a bit of a weird answer

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The sides of a rectangle are in the ratio 1:2. If the rectangle has an area of 578 in2, find the dimensions of the rectangle and

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Answer:

find the width and length

Step-by-step explanation:

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3 years ago

High of the following described the role of mathematics in science

SpyIntel [72]

Mathematics and science go hand in hand. The branches of science which include: Physics, astronomy, chemistry, biology, etc. In all these fields you will find that you will have to use the mathematical principles and formulae to solve the numerical problems. So, science needs maths but maths does not need science.

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3 years ago

PLEASE HELP!!! Write the expression as a single logarithm.<br> 3 log(4) + log(7)

anygoal [31]

Answer:

log (448)

Step-by-step explanation:

3 log(4) + log(7)

We know that a log b = log b^a

3 log(4) + log(7)

log 4^3 + log 7

log 64 + log 7

We know that log a + log b = log (a*b)

log (64 *7)

log (448)

3 0

4 years ago

Read 2 more answers

comparing to fractions with the same numerator you look at the doniminater cause the fraction with the greater numerator is grea

lorasvet [3.4K]

Numerator divided by denominator turns it into a fraction

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3 years ago

About 16 % of the population of a large country is allergic to pollen. If two people are randomly selected, what is the probabil

Vinvika [58]

Answer:

(a) 0.0256

(b) 0.2944

Step-by-step explanation:

For solving this exercise we can apply the binomial distribution. The equation that give as the probability is:

$P(x,n,p)=(nCx)*p^{x} *(1-p)^{n-x}$

Where n is the number of identical events, p is the probability that the event has a success and x is the number of success in the n identical events.

Additionally, nCx is calculated as:

$nCx=\frac{n!}{x!(n-x)!}$

So, in this case we have 2 identical events because we are going to select two people randomly and the probability p of success is the probability that the person is allergic to pollen and this probability is 16%.

Then, for the first case, x is 2 because their are asking for the probability that both are allergic to pollen. Replacing the values of x, n and p we get:

$P(2,2,0.16)=(2C2)*0.16^{2} *(1-0.16)^{2-2}$

P(2,2,0.16)=0.0256

For the second case, their are asking for the probability that at least one is allergic to pollen, that means that we need to sum the probability that both are allergic to pollen with the probability that just one is allergic to pollen.

Using the same equation to calculate P(1,2,0.16) we get:

$P(1,2,0.16)=(2C1)*0.16^{1} *(1-0.16)^{2-1}$

P(1,2,0.16)=0.2688

So, the probability that at least one person is allergic to pollen is 0.2944 and it is calculated as:

0.0256 + 0.2688 = 0.2944

7 0

3 years ago