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3 years ago

(4,7)(-12,3) into standard form

1 answer:

8 0

You seem to be sharing two points: <span>(4,7)(-12,3).
But you don't explain what you're looking for.

I must assume you want to find the equation of the str. line thru these 2 pts, in std. form. Ax+By+C=0.

1. Find the slope of the line thrugh </span><span>(4,7)(-12,3): rise is -4 and run is -16.
Thus the slope is -4/16, or -1/4.
2. Write out the slope-intercept equation of this line: subst. m = -1/4 and the coordinates of either given point:

y = mx + b becomes y = (-1/4)x + b

Let's subst. 4 for x and 7 for y: 7 = (-1/4)(4) + b, or
7 = -1 + b. Then b = 8.

Convert this to the equation in std. form:

y = (-1/4)x + 8 Mult all three terms by 4 to eliminate fractions.

4y = -x + 32, or 0 = -4y -x + 32, or 4y + x - 32 = 0 (answer)</span>

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Honestly I’m so bad at geometry so helpppp:)

Anastasy [175]

Answer:

900 m

Step-by-step explanation:

l*w*h

12 m (l)*5 m (w)*15 m (h)= 900 m altogether

6 0

2 years ago

What congruent theorem is this triangle...need help please

agasfer [191]

… z =w …angle v x w = angle z x y
It follows AAA SIMILARITY Relation

7 0

3 years ago

A survey showed that 77% of us need correction (eyeglasses, contacts, surgery, etc.) for their eyesight. 13 adults are randomly

earnstyle [38]

Using the binomial distribution, it is found that the probability that at least 12 of the 13 adults require eyesight correction is of 0.163 = 16.3%. Since this probability is greater than 5%, it is found that 12 is not a significantly high number of adults requiring eyesight correction.

For each person, there are only two possible outcomes, either they need correction for their eyesight, or they do not. The probability of a person needing correction is independent of any other person, hence, the binomial distribution is used to solve this question.

<h3>What is the binomial distribution formula?</h3>

The formula is:

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

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

The parameters are:

x is the number of successes.

n is the number of trials.

p is the probability of a success on a single trial.

In this problem:

A survey showed that 77% of us need correction, hence p = 0.77.

13 adults are randomly selected, hence n = 13.

The probability that at least 12 of them need correction for their eyesight is given by:

$P(X \geq 12) = P(X = 12) + P(X = 13)$

In which:

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 12) = C_{13,12}.(0.77)^{12}.(0.23)^{1} = 0.1299$

$P(X = 13) = C_{13,13}.(0.77)^{13}.(0.23)^{0} = 0.0334$

Then:

$P(X \geq 12) = P(X = 12) + P(X = 13) = 0.1299 + 0.0334 = 0.163$

The probability that at least 12 of the 13 adults require eyesight correction is of 0.163 = 16.3%. Since this probability is greater than 5%, it is found that 12 is not a significantly high number of adults requiring eyesight correction.

More can be learned about the binomial distribution at brainly.com/question/24863377

7 0

2 years ago

Two cars simultaneously left Points A and B and headed towards each other, and met after 2 hours and 45 minutes. The distance be

rjkz [21]

Answer:

Its 41 mph and 55 mph

Step-by-step explanation:

8 0

2 years ago

mrs. McCain had 3 folders. each folder had the same amount of papers in it. mrs. phillips gave mrs. McCain 7 more papers she end

Feliz [49]

Each folder must have 10 pages
!0 papers times 3 folders is 30
plus the 7 pages equals 37

4 0

2 years ago