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3 years ago

Who runs the race faster?

Mathematics

1 answer:

Troyanec [42]3 years ago

6 0

Answer:

Hector

Step-by-step explanation:

Hector is running 2.57, which is less/faster then 2.63

have a nice day :3

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Mathematically derive a set of values for b and c such that the interval [0, 10] represents the solution to the inequality |x−b|

Roman55 [17]

Answer: Ix - 5I ≥ 5.

Step-by-step explanation:

We want the set:

[0, 10]

to be the solution of:

Ix - bI ≤ c

So we need to find the values of c and b.

The first step is to find the middle point in our segment.

We can do that by adding the extremes and dividing it by 2.

M = (10 + 0)/2 = 5

And we also want to find half of the difference between the extremes, this is:

D = (10 - 0)/2 = 5.

Now, this set will be the set of solutions of:

Ix - MI ≥ D

Then in our case, we have:

Ix - 5I ≥ 5.

so we have that b = 5, and c = 5.

8 0

3 years ago

Please help me with this question i’ve tried 2, 4, 8, -8, 0 and none of those answers worked

Airida [17]

Answer:

Step-by-step explanation:

If the x-value is -4, go to -4 and go up to the line.

3 0

2 years ago

Suppose that scores on a particular test are normally distributed with a mean of 110 and a standard deviation of 20. What is the

qaws [65]

Answer:

The minimum score needed to be in the top 2% of the scores on the test

is n = 10,00,000

Step-by-step explanation:

Step(i):-

Mean of the Population = 110

Standard deviation of the Population = 20

The estimated error = 2% = 0.02

Step(ii):-

The estimated error is determined by

$E = \frac{S.D}{\sqrt{n} }$

$0.02 = \frac{20}{\sqrt{n} }$

⇒ $\sqrt{n} = \frac{20}{0.02} = 1000$

Squaring on both sides, we get

n = 10,00,000

The minimum score needed to be in the top 2% of the scores on the test

is n = 10,00,000

8 0

2 years ago

If f(x) = x² - 2x, find: f(5) = [?]

zhannawk [14.2K]

Answer:

$15$

Step-by-step explanation:

if $f(x) = x^2 -2x$ , then that means that $f(5) = (5)^2 - 2(5)$ which equals $15$ .

3 0

1 year ago

Read 2 more answers

3x2 y4 z − 6xy − 3z(5x2) how many terms are in the expression? PLEASE HELP! 20POINTS!

Lelu [443]

I think there are 3 terms. since this is an expression the meaning of "terms" is asking what's being added or subtracted.

7 0

3 years ago