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3 years ago

What is the slope of the line connecting (1,5) and (4,14)?

Mathematics

1 answer:

yan [13]3 years ago

3 0

m = change in y over change in x

m = (14-5)/(4-1)

m = 9/3 = 3

m = 3

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If 4a^2 = 144 then a is?

lilavasa [31]

4a²=144
a²=144/4
a²=36
a=⁺₋√36
a=⁺₋6

Answer: we have two values for a; a=-6; and a=6

we check it out:
if a=-6
4(-6)²=4*36=144

if a=6
4(6)²=4*36=144

4 0

3 years ago

The school library has 36 shelves of books . Each shelf can hold 42 books . How many books can the shelves in the library all to

eduard

Answer:

There are 1,512 books in all.

Step-by-step explanation:

All we need to do is multiply the number of books by the number of shelves.

So:

42 × 36 = 1,512.

4 0

2 years ago

Read 2 more answers

Heres an ez question for yall

SSSSS [86.1K]

Answer: Choice B

$\left\{ \ 3, 5, \sqrt{34} \ \right\}$

=========================================================

Explanation:

We'll be using the converse of the pythagorean theorem.

If we had a triangle with sides a,b,c and $a^2+b^2 = c^2$ was true, then we have a right triangle. Note: c is always the longest side

For the first answer choice we have: a = 5, b = 8, c = 12

Then,

$a^2+b^2 = c^2\\\\5^2+8^2 = 12^2\\\\25+64 = 144\\\\89 = 144\\\\$

which is false. This shows that we do not have a right triangle with sides 5,8,12. This rules out choice A. Choice C is a similar story.

Choice B on the other hand works because

$a^2+b^2 = c^2\\\\3^2+5^2 = (\sqrt{34})^2\\\\9+25 = 34\\\\34 = 34\\\\$

We have a true statement at the end, which confirms <u>choice B</u> is a right triangle.

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1 year ago

The cost is $2.66 and the percent of the markup is 50%. What is the selling price?

Alexandra [31]

I googled how to do markup 50%... and it took me awhile but I think I got the answer, $2.66 + $1.33 (into $1.33 from 2.66 x0.5) and u get $3.99 Sorry If I'm wrong but I hoped I helped!

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2 years ago

Which properties are used to add these complex numbers? Check all that apply. (4+3i)+(8+2i)=(4+8i)+(3i+2i)=12+5i A. Associative

NISA [10]

A. Associative Property
B. Commutative Property

7 0

3 years ago

Read 2 more answers