HELP MEEEEEEEEEEEEEE PLEASE

Answers

Answer 1

Answer:

Answer: The answer is A (32)

Step-by-step explanation:

you multiply 8 times 4 and you get 32.

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TSolve the system of equations below by graphing. What is the solution rounded to the nearest tenth? (–1.1, 3.2) (0.2, 2.8) (0.7, –4.2) (2.7, 0.1)

-10n + 3 = -117
Show work

Answers

Step-by-step explanation:

move the constant to the right hand side and change its sign

-10 +3= -117-3

calculate the difference

-10n= -120

divide both sides by -10

-10 = -120

N= 12

Answer:

$n = 12$

Step-by-step explanation:

1) Subtract 3 from both sides.

$- 10n = - 117 - 3$

2) Simplify -117 - 3 to - 120.

$- 10n = - 120$

3) Divide both sides by -10.

$n = ( - 120)/( - 10)$

4) Two negative makes a positive.

$n = (120)/(10)$

5) Simplify 120/10 to 12.

$n = 12$

Therefor,theanswerisn=12.

I NEED HELP!!! NOW!!!! A shape is picked at random from the group below.2 circles, 4 triangles, and 2 squares.

Which event has a theoretical probability of exactly Three-fourths? Select three options.

not picking a square

picking a square

picking a triangle

picking a shape that has only straight edges

not picking a circle

Answers

Theoretical probability formula: Favorable Outcomes/All Possible Outcomes

So let's find the theoretical probability for each option.

"Not picking a square"

So, there are 2 squares out of the 8 total shapes (2 circles + 4 triangles + 2 squares) So do 8-2=6... This is subtracting the number of squares out. So we are now left with 6/8.. Reduce the fraction: GCF is 2, so 6/8 simplifies to 3/4. So, "Not picking a square" is an option!

"Picking a square"

Okay so there are 2 squares (favorable outcome) out of 8 shapes in total (all possible outcomes) so the fraction is 2/8. Now simplify: GCF = 2, so 2/8 = 1/4. "Picking a square" is NOT an option

"Picking a triangle"

There are 4 triangles out of 8 shapes, so the fraction is 4/8 which = 1/2. The theoretical probability of picking a triangle is 1/2 and thus NOT an option.

"Picking a shape that has only straight edges"

So this basically means every shape that's not a circle. So, there are 4 triangles + 2 squares = 6 total shapes with straight edges. So there are 6 shapes with straight edges out of 8 total shapes: 6/8 reduces to 3/4. "Picking a shape that has only straight edges" IS an option! :D

LASTLY!

"Not picking a circle"

There are only 2 circles out of 8 total shapes, so 8-2=6 so the fraction is 6/8. This reduces to 3/4. "Not picking a circle" Is an option!

CORRECT ANSWERS:

Not picking a square

Picking a shape that has only straight edges

Not picking a circle

Have a good day!

Answer:

A, D, and E

Step-by-step explanation:

got it right on edge

Please help me out!!!

Answers

Answer:

Shifts 4 units down ---> $g(x)=2x-10$

Stretches f(x) by a factor of 4 away from x-axis---> $g(x)=8x-6$

Shifts f(x) 4 units right---> $g(x)=2x-14$

Compress f(x) by a factor of 1/4 toward the y-axis ---> $g(x)=1/2x-3/2$

Step-by-step explanation:

We are given $f(x)=2x-6$

We need to match the transformations.

1) shifts f(x) 4 units down.

When function f(x) shifts k units down the new function becomes f(x)-k

In our case

$g(x)=2x-6-4\ng(x)=2x-10$

So, Shifts 4 units down ---> $g(x)=2x-10$

2) Stretches f(x) by a factor of 4 away from x-axis

When function f(x) is stretched by a factor of b away from x-axis the new function becomes f(bx)

$g(x)=2(4x)-6\ng(x)=8x-6$

So, Stretches f(x) by a factor of 4 away from x-axis---> $g(x)=8x-6$

3) Shifts f(x) 4 units right

When function f(x) shifts h units right the new function becomes f(x-h)

$g(x)=2(x-4)-6\ng(x)=2x-8-6\ng(x)=2x-14$

So, Shifts f(x) 4 units right---> $g(x)=2x-14$

4) Compress f(x) by a factor of 1/4 toward the y-axis

When function f(x) is compressed by h factor of a toward the y-axis the new function becomes h.f(x)

$g(x)=1/4(2x-6)\ng(x)=1/2x-3/2$

Compress f(x) by a factor of 1/4 toward the y-axis ---> $g(x)=1/2x-3/2$

(Option Not given)

(If we compress f(x) by a factor of 4 towards y-axis we get g(x)=8x-24)

2-23 Ace Machine Works estimates that the probability its lathe tool is properly adjusted is 0.8. When the lathe is properly adjusted, there is a 0.9 probability that the parts produced pass inspection. If the lathe is out of adjustment, however, the probability of a good part being produced is only 0.2. A part randomly chosen is inspected and found to be acceptable. At this point, what is the posterior probability that the lathe tool is properly adjusted?

Answers

Answer:

The posterior probability that the lathe tool is properly adjusted is 94.7%

Step-by-step explanation:

This can be formulated as the following problem:

What is the probability of B happening, knowing that A has happened.

It can be calculated by the following formula

$P = (P(B).P(A/B))/(P(A))$

Where P(B) is the probability of B happening, P(A/B) is the probability of A happening knowing that B happened and P(A) is the probability of A happening.

In your problem we have that:

-A is the probability that the part chosen is found to be acceptable.

The problem states that the probability its lathe tool is properly adjusted is 0.8. When it happens, there is a 0.9 probability that the parts produced pass inspection. There is also a 0.2 probability of the lathe is out of adjustment, when it happens the probability of a good part being produced is only 0.2.

So, P(A) = P1 + P2 = 0.8*0.9 + 0.2*0.2 = 0.72 + 0.04 = 0.76

Where P1 is the probability of a good part being produced when lathe tool is properly adjusted and P2 is the probability of a good part being produced when lathe tool is not properly adjusted.

- P(B) is the the probability its lathe tool is properly adjusted. The problem states that P(B) = 0.8

P(A/B) is the probability of A happening given that B has happened. We have that A is the probability that the part chosen is found to be acceptable and B is the probability its lathe tool is properly adjusted. The problem states that when the lathe is properly adjusted, there is a 0.9 probability that the parts produced pass inspection. So P(A/B) = 0.9

So, probability of B happening, knowing that A has happened, where B is the lathe tool is properly adjusted and A is that the part randomly chosen is inspected and found to be acceptable is:

$P = (P(B).P(A/B))/(P(A)) = (0.8*0.9)/(0.76) = (0.72)/(0.76) = 0.947 = 94.7%$