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ivanzaharov [21]
3 years ago
6

I WILL GIVE BRAINLIEST, PLZ ANSWER,Olivia walked 2 2/5 km in 2/3 hour while Ryan walked 4 1/2 km in 1 1/ 2 hours. Who walked fas

ter and how much faster?
Mathematics
2 answers:
makvit [3.9K]3 years ago
6 0
Olivia walked faster. She walked 2/4km fastwr
nevsk [136]3 years ago
5 0
Ryan walked faster. He ended up walking 2 1/10 km faster than Olivia.
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PAGE 11<br> 5) Find the value of x x/2+5=12<br><br> A x=1/2<br> B x=5<br> C x=1<br> D NO SOLUTION
Fiesta28 [93]

Answer:

in the set of answers: D (no solution )

Step-by-step explanation:

from the possible answers , there is no correct value of x ( A is wrong, B, and C aswell)

the value for x in this equation is equal to 14, hence there is no solution given in the answers

7 0
3 years ago
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What is the answer to f(x)-3x^2-2
aleksklad [387]

Answer:

Do it yourself

Step-by-step explanation: Cheating is not a good way, what are you gonna do when you can't cheat?

6 0
3 years ago
PLEASE HELP = simplify 3/4(-10+2/5)
solniwko [45]
There are many ways to do this depending on the property you have to use:

If you use the distributive property, you need to distribute 3/4 to -10 and 2/5. Distribute means you will multiply it so your resulting equation will be this:

\frac{-30}{4}  -  \frac{6}{20}

Before you can add, you need to first make them like terms because you cannot add unlike fractions. Get the LCD and form your new equation:

\frac{-150+6}{20}

Now you can just add them together to get:
\frac{-144}{20}

and then simplify your fraction:
\frac{-36}{5} or - \frac{36}{5} 

The whole fraction becomes negative because when you divide integers and of them is negative, the final answer will be negative.
3 0
3 years ago
a boat capsized and sank in the lake. based on an assumption of a mean weight of 143 lb, the boat was rated to carry 70 passenge
Alenkinab [10]

The final answer is the probability that the boat is overloaded because the mean weight of the 70 passengers is greater than 143lb is 1.0000.

A normal distribution is a continuous data distribution with a bell-shaped curve. The normally distributed random variable X has mean $\mu$ and standard deviation $\sigma$.

In addition, the standard normal distribution represents a normal curve with a mean of zero and a standard deviation of one.

The number of standard deviations an element deviates from the mean is indicated by a standardized Z-score.

What is the theorem of the central limit?

  • If the sample size from the population is sufficiently large and has a finite variance, the mean of all samples taken will be approximately the same as the population mean. And the variance would be the population variance divided by the sample size. In addition, the sampling distribution would be roughly normal.
  • The formula for sampling distribution of the sample mean is $\mu_{\bar{x}}=\mu$
  • The formula for standard deviation of the sample mean is,\sigma_{\bar{x}}=\frac{\sigma}{\sqrt{n}}
  • Here, $\sigma$ is the population standard deviation and n is the sample size.
  • The formula for standard z-score is,

z=\frac{\bar{x}-\mu_{x}}{\frac{\sigma}{\sqrt{n}}}

  • From the given information,Population mean, $\mu=171$,Population standard deviation, $\sigma=37.7$,Sample size, n=70
  • Compute the probability that the boat is overloaded because the mean weight of the 70 passengers is greater than $143l \mathrm{~b}$.

$$\begin{aligned}P(\bar{X} > 143) &=P\left(\frac{\bar{X}-\mu}{\sigma / \sqrt{n}} > \frac{143-171}{37.7 / \sqrt{70}}\right) \\&=P(Z > -6.21) \\&=1-P(Z < -6.21) \text { (Use the Excel function NORMSDIST(-6.21)) } \\&=1-0.0000 \\&=1.0000\end{aligned}$$

To learn more about standard deviation visit:

brainly.com/question/16555520?

#SP4

4 0
2 years ago
When verifying that a function represented in another table is the inverse of the given cost function, which ordered pair can be
babunello [35]

Answer:

Option B is correct.

Step-by-step explanation:

To find the inverse of the function, the ordered pairs are inverted. i.e. x becomes y and y becomes x.

So, We are given in the table:

(20,52) ,(25,67.5), (30,84)

The inverse would be:

(52,20), (67.5,25),(84,30)

So, Option B is correct.

5 0
3 years ago
Read 2 more answers
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