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3 years ago

Which graph represents the solution set for the system 6x + y > -3 and 2x + y ≤ 4?

Mathematics

1 answer:

givi [52]3 years ago

7 0

Graph B is the correct answer

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Please help me solve this proof!!!!!

jolli1 [7]

statements:

1.) E is midpoint of TP

2) TP bisects MR

reasons:

1.)given

2) MT is congruent to PR (I think)

I might be wrong though so dont count on it being right. I hope I helped. ime not that good at math. I m not BAD but yea

6 0

3 years ago

If two straight lines intersect and one angle is 30 degrees what are the other three angles

mel-nik [20]

Easey peasy
oposite angle is equal
other angles are supplementary (supplementary means add to 180, and a straight line=180 so if you look at 2 lines intersecting and think for a little bit, you wiill see why)

oposite angle=30
other angle is adds to 180
30+other=180
subtract 30
other=150
other is oposite other other
other=other other
150=other other

angles are
150,30,150

3 0

3 years ago

Read 2 more answers

Suppose that lithium calculator battery with a charge of 3 volts, actually has a voltage with uniform distribution between 2.93

Dmitrij [34]

Answer:

b. E(X) = 3.015, STDEV(X)= 0.049, P (X ≤ 2.98) = 0.2941

Step-by-step explanation:

An uniform probability is a case of probability in which each outcome is equally as likely.

For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.

The mean of the uniform probability distribution is:

$M = \frac{a + b}{2}$

The standard deviation of the uniform distribution is:

$S = \sqrt{\frac{(b-a)^{2}}{12}}$

The probability that we find a value X lower than x is given by the following formula.

$P(X \leq x) = \frac{x - a}{b-a}$

Uniform distribution between 2.93 and 3.1 volts

This means that $a = 2.93, b = 3.1$ . So

Mean:

$M = \frac{2.93 + 3.1}{2} = 3.015$

Standard deviation:

$S = \sqrt{\frac{(3.1 - 2.93)^{2}}{12}} = 0.049$

What is the probability that a battery has a voltage less than 2.98?

$P(X \leq 2.98) = \frac{2.98 - 2.93}{3.1 - 2.93} = 0.2941$

So the correct answer is:

b. E(X) = 3.015, STDEV(X)= 0.049, P (X ≤ 2.98) = 0.2941

6 0

3 years ago

For Anya's birthday her father gave out colorful birthday hats that were cone shaped. The opening of the bottom of the hat was 3

goblinko [34]

Formula
V = (1/3) pi * r^2 h

pi = 3.14
d = 3 cm. (very small)
r = d/2 = 3/2 = 1.5 cm
h = 7 cm

V= (1/3) 3.14 * 1.5^2 * 7
V = 1.04 * 1.5^2 * 7
V = 16.485 cm^3

L <<<<==== answer.

3 0

3 years ago

Read 2 more answers

Plz help I need it or I’m gonna fail this test

quester [9]

Answer:

-2

Step-by-step explanation:

I think this is the answer

4 0

2 years ago