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3 years ago

Find the value of x, the missing angle measurement: (image attached)

Mathematics

2 answers:

Tems11 [23]3 years ago

3 0

Answer:

Step-by-step explanation:

If 2 angles are provided add them and subract that from 180

allsm [11]3 years ago

3 0

Answer: 65

Step-by-step explanation:

47 + 65 = 115

180 - 115 = 65

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A sample of 100 is drawn from a population with a proportion equal to 0.50. Determine the probability of observing between 43 an

diamong [38]

Answer:

The probability of observing between 43 and 64 successes=0.93132

Step-by-step explanation:

We are given that

n=100

p=0.50

We have to find the probability of observing between 43 and 64 successes.

Let X be the random variable which represent the success of population.

It follows binomial distribution .

Therefore,

Mean, $\mu=np=100\times 0.50=50$

Standard deviation , $\sigma=\sqrt{np(1-p)}$

$\sigma=\sqrt{100\times 0.50(1-0.50)]$

$\sigma=5$

Now,

$P(43\leq x\leq 64)=P(42.5\leq x\leq 64.5)$

$P(42.5\leq x\leq 64.5)=P(\frac{42.5-50}{5}\leq Z\leq \frac{64.5-50}{5})$

$=P(-1.5\leq Z\leq 2.9)$

$P(42.5\leq x\leq 64.5)=P(Z\leq 2.9)-P(Z\leq- 1.5)$

$P(42.5\leq x\leq 64.5)=0.99813-0.06681$

$P(43\leq x\leq 64)=0.93132$

Hence, the probability of observing between 43 and 64 successes=0.93132

4 0

2 years ago

A box contains 17 transistors, 3 of which are defective. If 3 are selected at random, find the probability that

Margarita [4]

B none are defective

6 0

3 years ago

Read 2 more answers

Pls help this is due soon!!!

Setler79 [48]

19 for the far left!!!!

5 0

3 years ago

Billy's plant is at least 2 inches tall. Graph all the possible heights of the plant.

Tasya [4]

He means that 5.08 cm is a possible coordinate, and 50.8 mm is a possible coordinate
:)

5 0

3 years ago

Is (x + 2) a factor of 3x3 + 4x2 - 4 ?

nordsb [41]

Answer:

No it is not a factor

Step-by-step explanation:

Reason for not being a factor is 3x^3-4x^2-4x. 3x3−4x2−4x 3 x 3 - 4 x 2 - 4 x. Factor x x out of 3x3−4x2−4x 3 x 3 - 4 x 2 - 4 x

5 0

2 years ago