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2 years ago

Need help with number 2.

Mathematics

1 answer:

Julli [10]2 years ago

8 0

Not symmetrical to the x or y axis, or the origin. To test symmetry, replace x with -x and y with -y.

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What does m = in m/6 + 8=13 with work shown

Tom [10]

Please excuse my sloppy writing but the answer is 30

8 0

3 years ago

One angle of a right triangle measures 65°. What is the measure of the other acute angle?

kvasek [131]

answer:

25°

explanation:

triangle total: 180°

right angle: 90°

90 + 65 = 155

180 - 155 = 25

hope this helped!

6 0

2 years ago

Question 2 <><><><><><><><><><><>

drek231 [11]

Answer:

I deserve brainliest just as all good boys deserves fudgeeeeee

Step-by-step explanation:

v^2 = 25/81

v= the square root of 25/81 = 5/9

since that isn't a choise, don't simplify.

D works too because negative x negative = positive

CCCCCCC

4 0

3 years ago

Read 2 more answers

g A coin where the probability of heads is 0.3 is flipped 2000 times. Use the normal approximation to the binomial distribution

matrenka [14]

Title:

<h2>See the explanation.</h2>

Step-by-step explanation:

The coin is to be flipped 2000 times.

The probability of getting a head is 0.3.

It is given that, we need to get a head in between 575 and 618 times.

If we will get 575 heads then we will get (2000 - 575) tails.

Hence, if we take that we want to get n times head, then we will get (2000 - n) times tail.

The probability of not getting a head is (1 - 0.3) = 0.7.

The probability of getting n times head is $^{2000}C_n (0.3)^n \times (0.7)^{2000 - n}$ .

The required probability is ∑ $^{2000}C_n (0.3)^n \times (0.7)^{2000 - n}$ , where $575 \leq n \leq 618$ .

5 0

2 years ago

The average diameter of sand dollars on a certain island is 4.00 centimeters with a standard deviation of 0.60 centimeters. If 1

blagie [28]

Answer:

0.8413 is the required probability.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 4.00 centimeters

Standard Deviation, σ = 0.60 centimeters

Sample size, n = 16

We are given that the distribution of average diameter is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

Standard error due to sampling =

$=\dfrac{\sigma}{\sqrt{n}} = \dfrac{0.60}{\sqrt{16}} = 0.15$

P(diameter of sample is more than 3.85 centimeter)

P(x > 3.85)

$P( x > 3.85) = P( z > \displaystyle\frac{3.85 - 4}{0.15}) = P(z > -1)$

$= 1 - P(z \leq -1)$

Calculation the value from standard normal z table, we have,

$P(x > 3.85) = 1 -0.1587 = 0.8413$

0.8413 is the probability that the the average diameter of sample of 16 sand dollars is more than 3.85 centimeters.

4 0

3 years ago