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2 years ago

Y= 1/2x + 2 Solve please!

Mathematics

1 answer:

julsineya [31]2 years ago

5 0

(IF SOLVING FOR Y) y= x/2+2

(IF SOLVING FOR X) x=2y-4

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The heights of adult men in america are normally distributed, with a mean of 69.1 inches and standard deviation of 2.65 inches.

Nesterboy [21]

The solution for this problem is:It's given that the heights are normally distributed.
5 feet 7 inches = (5*12 +7) inches = (60+7) inches = 67 inches.
The z-score is (67 - 69.1)/(2.65) = -1.136. The probability is 0.127978 or 12.8%, making probability of a height over 67 inches

5 0

2 years ago

Read 2 more answers

Out of 32 students in a class five said they rode there bikes to school. Based on these results, how many of the 800 students ri

melamori03 [73]

YOu have to set a proportion or do this easy method...

5/32= 0.15625
the you multiply 0.15625 by 800 because that is what you want to find out of...

that means the answer is 125

125 ride their bike to school...

hope that helps and you give good feedback

3 0

2 years ago

Hello, Brainly community!

ioda

Answer:

(B) $\displaystyle \frac{W(3.1) - W(2.9)}{0.2}$

General Formulas and Concepts:

Calculus

Limits

Derivatives

The definition of a derivative is the slope of the tangent line.

Derivative Notation

Instantaneous Rates

Tangent Line: $\displaystyle f'(x) = \frac{f(b) - f(a)}{b - a}$

Step-by-step explanation:

Since we are trying to find a rate at which W(t) changes, we must find the derivative at t = 3.

We are given 2 close answer choices that would have the same numerical answer but different meanings:

(A) $\displaystyle \lim_{t \to 3} W(t)$
(B) $\displaystyle \frac{W(3.1) - W(2.9)}{0.2}$

If we look at answer choice (A), we see that our units would simply just be volume. It would not have the units of a rate of change. Yes, it may be the closest numerically correct answer, but it does not tell us the rate at which the volume would be changing and it is not a derivative.

If we look at answer choice (B), we see that our units would be cm³/s, and that is most certainly a rate of change. Answer choice (B) is also a derivative at t = 3, and a derivative tells us what rate something is changing.

∴ Answer choice (B) will give us the best estimate for the value of the instantaneous rate of change of W(t) when t = 3.

Topic: AP Calculus AB/BC (Calculus I/I + II)

Unit: Differentiation

Book: College Calculus 10e

8 0

2 years ago

-5 >3 true or false plssssss answer

Ivan

Answer:

false

Step-by-step explanation:

-5 is smaller than 3 not bigger.

8 0

2 years ago

Which statement is true about the function f(x) = -x?

Nataly [62]

Answer:

The answer is "It has the same domain as the function f(x) = --x".

Step-by-step explanation:

If we consider its parent function that is: y= x

Domain function is: $x \in (0, \infty)$

The range function is: $y \in (0, \infty)$

The function has both the same (domain and range).

6 0

3 years ago