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3 years ago

It will mean a whooole lot for me if you answer

Mathematics

2 answers:

Lilit [14]3 years ago

8 0

Answer:

That is hard.

Step-by-step explanation:

LuckyWell [14K]3 years ago

4 0

Answer:

1 ) 180 - 71 = 109

2) 5x +x = 180 ; 6x = 180 ; x = 180/6 = 30

3) 90

4) x + 6x+8 + x+12 = 180 ; 8x + 20 = 180 ; 8x = 160/8= 30

5) 180 -110 = 70

6) m = 180- 119 = 61

7) 90

8) 11y - 36 = 63 ; y = 99/11 = 9

~~~~~~~~Next page~~~~~~~~~~

(Q7) 180

(Q8) 2x+x = 3x = 90 ; x = 90/3 = 30

(Q15) 157

(Q16) 5x + 4 + (x-2) + (3x+7) = 180

9x +9 = 180 ; x = 171 / 9 = 19

I hope im right!!

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Assume that the probability of a defective computer component is 0.02. Components arerandomly selected. Find the probability tha

solmaris [256]

Answer:

0.0177 = 1.77% probability that the first defect is caused by the seventh component tested.

The expected number of components tested before a defective component is found is 50, with a variance of 0.0208.

Step-by-step explanation:

Assume that the probability of a defective computer component is 0.02. Components are randomly selected. Find the probability that the first defect is caused by the seventh component tested.

First six not defective, each with 0.98 probability.

7th defective, with 0.02 probability. So

$p = (0.98)^6*0.02 = 0.0177$

0.0177 = 1.77% probability that the first defect is caused by the seventh component tested.

Find the expected number and variance of the number of components tested before a defective component is found.

Inverse binomial distribution, with $p = 0.02$

Expected number before 1 defective(n = 1). So

$E = \frac{n}{p} = \frac{1}{0.02} = 50$

Variance is:

$V = \frac{np}{(1-p)^2} = \frac{0.02}{(1-0.02)^2} = 0.0208$

The expected number of components tested before a defective component is found is 50, with a variance of 0.0208.

5 0

2 years ago

BRAINLIESTTTT ASAP!!!!!!!!!!!!! please answer

Zanzabum

The answer is C. The answer is C. Mean, because there are no outliers that affect the center

3 0

3 years ago

PLEASE HELP ME ILL MARK AS BRAINLIEST

Gelneren [198K]

0.05 ---> 1/18

square root of 0.25 ------> 0.05

1/7------> 0.142857 repeating

0.6 -------> 2/3

5 0

3 years ago

Read 2 more answers

While visiting Wallawulla State Park, Joe approximated the angle of elevation to the top of a mound to be 40 degrees . After wa

katen-ka-za [31]

Answer:

Height of mound = 794 ft

Step-by-step explanation:

To illustrate the angle of elevation and distance, i have drawn it and attached below.

Now, from my diagram;

h = the height of the mound

At his first point of his trip to the foot of the mound, the angle of elevation is 40°, while the horizontal distance to the foot of the mound is "X"

So, by triangle definition,

tan(40°) = h/x

And so;

h = x tan40

h = 0.8391x - - - - (eq 1)

At his second point of the trip to the foot of the mound, Joe is now,

"(x - 450) ft" from the foot of the mound.

Thus, his angle of elevation is 40 + 18 = 58°.

So, by triangle definition,

tan(58°) = h/(x - 450)

h = (x - 450)•(tan(58°))

h = 1.6003(x - 450)

h = 1.6003x - 720.135 - - - - -(eq2)

To get the height(h) of the mound, let's equate (eq1) to (eq2).

0.8391x = 1.6003x - 720.135

1.6003x - 0.8391x = 720.135

0.7612x = 720.135

x = 720.135/0.7612

x = 946.0523 ft

Let's put this value for x in eq (1);

h = 0.8391 x 946.0523 = 793.83 ft ≈ 794ft

4 0

3 years ago

Four people P, Q, R and S have to sit on the four stools marked 1, 2, 3 and 4.

Zarrin [17]

The answer is B I’m pretty sure

5 0

3 years ago