1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
gizmo_the_mogwai [7]
2 years ago
8

Do the ratios 8:24, and 5:15 form a proportion yes no

Mathematics
1 answer:
Dmitrij [34]2 years ago
5 0

Answer:

Yes they do, the proportion of 1:3 as 1 x 8=8, and 3 x 8=24, and 5 x 1=5, and 5 x 3=15

Step-by-step explanation:

You might be interested in
Use the rules of exponents to evaluate or simplify. Write without negative exponents.
koban [17]

9514 1404 393

Answer:

  1

Step-by-step explanation:

Any non-zero number to the zero power is 1.

  3.4^0 = 1

4 0
3 years ago
Find the value of x in the triangle. SU RV
kodGreya [7K]

Answer:

x = 8

Step-by-step explanation:

Δ TSU and Δ TRV are similar , thus the ratios of corresponding sides are equal, that is

\frac{TS}{TR} = \frac{TU}{TV} , substitute values

\frac{x}{x+16} = \frac{5}{15} = \frac{1}{3} ( cross- multiply )

3x = x + 16 ( subtract x from both sides )

2x = 16 ( divide both sides by 2 )

x = 8

5 0
3 years ago
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
Anettt [7]

Answer:

Choice C: approximately 121 green beans will be 13 centimeters or shorter.

Step-by-step explanation:

What's the probability that a green bean from this sale is shorter than 13 centimeters?

Let the length of a green bean be X centimeters.

X follows a normal distribution with

  • mean \mu = 11.2 and
  • standard deviation \sigma = 2.1.

In other words,

X\sim \text{N}(11.2, 2.1^{2}),

and the probability in question is X \le 13.

Z-score table approach:

Find the z-score of this measurement:

\displaystyle z= \frac{x-\mu}{\sigma} = \frac{13-11.2}{2.1} = 0.857143. Closest to 0.86.

Look up the z-score in a table. Keep in mind that entries on a typical z-score table gives the probability of the left tail, which is the chance that Z will be less than or equal to the z-score in question. (In case the question is asking for the probability that Z is greater than the z-score, subtract the value from table from 1.)

P(X\le 13) = P(Z \le 0.857143) \approx 0.8051.

"Technology" Approach

Depending on the manufacturer, the steps generally include:

  • Locate the cumulative probability function (cdf) for normal distributions.
  • Enter the lower and upper bound. The lower bound shall be a very negative number such as -10^{9}. For the upper bound, enter 13
  • Enter the mean and standard deviation (or variance if required).
  • Evaluate.

For example, on a Texas Instruments TI-84, evaluating \text{normalcdf})(-1\text{E}99,\;13,\;11.2,\;2.1 ) gives 0.804317.

As a result,

P(X\le 13) = 0.804317.

Number of green beans that are shorter than 13 centimeters:

Assume that the length of green beans for sale are independent of each other. The probability that each green bean is shorter than 13 centimeters is constant. As a result, the number of green beans out of 150 that are shorter than 13 centimeters follow a binomial distribution.

  • Number of trials n: 150.
  • Probability of success p: 0.804317.

Let Y be the number of green beans out of this 150 that are shorter than 13 centimeters. Y\sim\text{B}(150,0.804317).

The expected value of a binomial random variable is the product of the number of trials and the probability of success on each trial. In other words,

E(Y) = n\cdot p = 150 \times 0.804317 = 120.648\approx 121

The expected number of green beans out of this 150 that are shorter than 13 centimeters will thus be approximately 121.

7 0
3 years ago
Determine whether each view represents the object. Assume there are no hidden cubes. HELP PLEASE I DON'T UNDERSTAND!!
zubka84 [21]

Answer:

The answer is: #3 yes, yes

Step-by-step explanation:

The first 3 shapes in the image count as the first view and the 4th shape is the second view. They both represent the object.

4 0
3 years ago
Can u please Solve for g<br> Mg=6<br> g=?
alexdok [17]
Well if you use opposite operations then you will get

mg=6
to
g=6m
5 0
3 years ago
Other questions:
  • Owners of a summer camp are buying new cots for there cabins.There are 16 cabins. Each cabin needs 6 cots. Each cot is $92. How
    13·2 answers
  • Round each decimal to the nearest hundredth.<br> A. .596<br> B. .367<br> C .24<br> D. 13.578
    13·1 answer
  • 9. Which of the following is true about the Venn diagram below?
    11·1 answer
  • Which perfect squares does the number 69 falls in between?
    12·1 answer
  • Explain one way to find the area of the polygon at the right. Then find the area in square units.
    8·2 answers
  • Consider the following data set: {4, 5, 6, 7, 10}. If you remove one of the numbers from the list, then the mean increases and t
    14·1 answer
  • Explain why 3(x+4)=2(x-5) has one solution.
    15·1 answer
  • Y – 1.02 = 4.7 <br> solve for y
    13·2 answers
  • Two-fifths of Aika’s stamp collection are European stamps.
    14·1 answer
  • I was wondering if how you would plot a point using this information, also how you would answer this question. Thanks!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!