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3 years ago

PLEASE HELP ME ASAP!

Mathematics

1 answer:

SVETLANKA909090 [29]3 years ago

8 0

Answer:

D. local maximum at the point (4, 18)

Step-by-step explanation:

Check the critical points and end points to test for any absolute extrema over the given interval.

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You get GPS units from two manufacturers, A and B. You get 43% of your units from A and 57% of your units from B. In the past, 2

defon

Answer:

0.5015 = 50.15% probability that it came from manufacturer A.

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Defective

Event B: From manufacturer A.

Probability a unit is defective:

2% of 43%(from manufacturer A)

1.5% of 57%(from manufacturer B). So

$P(A) = 0.02*0.43 + 0.015*0.57 = 0.01715$

Probability a unit is defective and from manufacturer A:

2% of 43%. So

$P(A \cap B) = 0.02*0.43 = 0.0086$

What is the probability that it came from manufacturer A?

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.0086}{0.01715} = 0.5015$

0.5015 = 50.15% probability that it came from manufacturer A.

4 0

3 years ago

Please help me and show your wprk

stellarik [79]

This is how I find the GCF.

I find the prime factors.

63/3 = 21
21/3 = 7
7/7 = 1

81/3 = 27
27/3 = 9
9/3 = 3
3/3 = 1

Then I find the common prime factors:
63: 3 x 3 x 7
81: 3 x 3 x 3 x 3

Then I multiply the common prime factors:
3 x 3 = 9

The GCF for 63 and 81 (number 3) is 9.

I bet you can use this method for all the other GCFs! :)

For this one, find the prime factors like before, and if there aren't any besides one, then it's a prime number.

75/3 = 25
25/5 = 5
5/5 = 1

The prime factorization for 75 is 3 x 5 x 5

(I don't know the answer to 7, 8, 9, 10, 11, 12, 25, or 26, sorry!)

3 0

4 years ago

What is the value of X to the nearest tenth in the triangle below? the triangle is not drawn to scale

Semmy [17]

Answer:

x = 13.9

Step-by-step explanation:

With respect to the angle shown, we have the hypotenuse (the side opposite the 90 degree angle) and we have the adjacent side (which is the side labeled x). thus we can use the ratio "cosine" to solve this.

<em>The ratio of cosine is defined as:</em>

$Cos\theta=\frac{Adjacent}{Hypotenuse}$

Where adjacent and hypotenuse are the respective sides and $\theta$ is the angle

<em>Thus, we can now write:</em>

$Cos\theta=\frac{Adjacent}{Hypotenuse}\\Cos(35)=\frac{x}{17}\\Cos(35)*17=x\\x=13.9$

The first answer choice is right, x = 13.9

8 0

3 years ago

Do you inverse to slove

lys-0071 [83]

Answer: Yes, In mathematics, an inverse function (or anti-function) is a function that "reverses" another function: if the function f applied to an input x gives a result of y, then applying its inverse function g to y gives the result x, and vice versa, i.e., f(x) = y if and only if g(y) = x.

3 0

3 years ago

Algebra

nevsk [136]

Answer:

The equation is y = 3/5x - 6

Step-by-step explanation:

First we have to find the slope of the line. In order to do so, solve the first equation for y.

3x - 5y = 7

-5y = -3x + 7

y = 3/5x + 7/-5

This gives us a slope of 3/5. Given that information, we now can plug the slope and point into point-slope form and get the final equation.

y - y1 = m(x - x1)

y - -6 = 3/5(x - 0)

y + 6 = 3/5x

y = 3/5x - 6

3 0

3 years ago