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3 years ago

Solve the system by the addition method. x + 3y = -2 5x + 2y = - 23

Mathematics

1 answer:

KatRina [158]3 years ago

7 0

What are you solving for? X? Y?

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How many times dose 42 go into 1,984

umka2103 [35]

Here is the answer all you have to do is go 1984 divide by 42 47.23809524

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3 years ago

DIVIDE WRITE YOUR ANSWER IN SIMPLEST FORM 7/6 DIVIDED BY 2

Nataly [62]

Answer:

7/12

Step-by-step explanation:

when you divide 7/6 by 2, you have to make the 2 into a fraction; which would be 2/1.
you would flip the 2/1 to 1/2, and make the divide sign into a multiplication sign.
then just multiply! hope this helps! :)

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2 years ago

Two competing sports equipment suppliers sell footballs at different prices. Supplier A charges $85 in shipping, and charges $2.

S_A_V [24]

Supplier A: $188.6
Supplier B: $221.6

I hope I helped but I honestly have no idea if I did. Anyway sorry if I didn't. Good luck.

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3 years ago

If The diameter of a circle is 14 yards.what is the circles circumference

amm1812

Answer:

14π yards^2, or 43.98^2 yards rounded to 2dp

Step-by-step explanation:

circumference = diameter x π

6 0

3 years ago

A college professor never finishes his lecture before the end of the hour and always finishes his lectures within 2 min after th

Citrus2011 [14]

Answer:

Value of k is $\displaystyle\frac{3}{8}$

Step-by-step explanation:

We are given the following information in the question:

$f(x) = kx^2, 0\leq x \leq 2\\~~~~~~~= 0, \text{ otherwise}$

where x is the time elapses between the end of the hour and the end of the lecture.

We have to find the values of k.

Since, f(x) is the pdf, then,

$\displaystyle\int^\infty_{-\infty} f(x) = 1\\\\\displaystyle\int^2_{0} f(x) = 1\\\\\displaystyle\int^2_{0} kx^2 = 1\\\\k\bigg[\frac{x^3}{3}\bigg]^2_0 = 1\\\\k\times \frac{8}{3} = 1\\\\k = \frac{3}{8}$

Hence, value of k is $\displaystyle\frac{3}{8}$

4 0

2 years ago