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3 years ago

Help me with this FOIL method.

Mathematics

1 answer:

kumpel [21]3 years ago

3 0

So u have got a quadratic. Two numbers which times together to give -35 and + to give 2 are -5 and 7 so in the bracket it would be (p-5)(p+7)

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Which equation best represents the line graphed above

san4es73 [151]

Hi there!

The correct answer is option B

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Since x = -4 is a vertical line(perpendicular to horizontal), so there is no y-intercept and the slope is undefined.

"A vertical line has undefined slope because all points on the line have the same x-coordinate.

So, the slope is undefined and we also don't have the y - intercept.

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Credit to my graphing calculator, it looks like this ↓↓

Best of luck with your studies!

4 0

3 years ago

What is 315 divided by 3 step by step explanation

Irina18 [472]

Answer:

the answer to 315 / 3 is 105

7 0

4 years ago

7(s-3)=21<br> I need this problem worked out

vlada-n [284]

To solve for s all you have to do is factor the 7 and simplify the rest.
7s-21=21
7s=42
s=6

6 0

3 years ago

Read 2 more answers

A survey found that 31% of all teens buy soda (pop) at least once each week. Seven teens are randomly selected. The random varia

kumpel [21]

Answer:

The value of n is 7.

Step-by-step explanation:

For each teen, there are only two possible outcomes. Either they buy soda at least once each week, or they do not. Since they were selected randomly, the teens are independent of each other, which means that we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

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

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

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

And p is the probability of X happening.

In the binomial distribution, we have that n is the size of the sample. In this question, seven teens are randomly selected, which means that the value of n is 7.

7 0

3 years ago

The perimeter of a rectangular field is 264 yards. If the width of the field is 54 yards, what is its length?

SIZIF [17.4K]

P = 2(L + W)
P = 264
W = 54

264 = 2(L + 54)
264 = 2L + 108
264 - 108 = 2L
156 = 2L
156/2 = L
78 <=== Length is 78 yards

7 0

3 years ago

Read 2 more answers