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3 years ago

Which graph is an example of a function? A) B) C) D)

Mathematics

2 answers:

Allushta [10]3 years ago

5 0

I believe its either d or b leaning on b

Serga [27]3 years ago

4 0

A function can only have one y value for every x value.

the answer is D

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Gary is paid $15.50 per hour in addition to a weekly salary of $50. This week he wants to earn more than $400. Write an inequali

kow [346]

Answer:

15.50h + 50 > 400

Step-by-step explanation:

Given;

Weekly salary = $50 per week

Additional pay = $15.50 per hour

The variable h represent the number of hours worked per week

The total amount earn per week is;

Weekly salary + total additional pay per week

50 + 15.50h

To earn more than $400 this week, the total amount earned in a week must be greater than 400;

15.50h + 50 > 400

Solving the equation we have;

15.50h > 400-50

h > (400-50)/15.50

h > 22.58 hours per week.

6 0

3 years ago

Read 2 more answers

Examine the algebra tiles screen. Which equation is being modeled? –4x + 3 = 2x + 1 3x + (–4) = x + 2 –4x + 3 = x + 1 3x + 4 = x

Lina20 [59]

Answer: 3x + (-4) = x + 2

Step-by-step explanation:

7 0

3 years ago

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The chart shows the number of band members in each age group for the school band. Which histogram correctly shows the data in th

tino4ka555 [31]

Answer:the first one on the left, where 8 and under is at the 45 players, non of the others match up

Step-by-step explanation:

7 0

3 years ago

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Jackson purchased some power tools totaling $1,543 using a six month deferred payment plan with an interest rate of 23.76%. He d

skad [1K]

Suppose he makes the payment with two equal annual instalments, the present value of the amount he is owing is $1,543 , the interest rate is 23.76% = 0.2376.

The amount of payment he makes in two of the periodic payments is given by:

$PV = P\left( \frac{1-(1+r)^{-n}}{r} \right) \\ \\ \Rightarrow1,543=P\left( \frac{1-(1+0.2376)^{-2}}{0.2376} \right) \\ \\ =P\left( \frac{1-(1.2376)^{-2}}{0.2376} \right)=P\left( \frac{1-0.6529}{0.2376} \right) \\ \\ =P\left( \frac{0.3471}{0.2376} \right)=1.4609P \\ \\ \Rightarrow P= \frac{1,543}{1.4609} =1,056.20$

Therefore, in 2 years, the amount he has paid for the tools is 2(1,056.20) = 2,112.40

4 0

4 years ago

Problem PageQuestion

krok68 [10]

Answer:

Jennifer's height is 63.7 inches.

Step-by-step explanation:

Let X = heights of adult women in the United States.

The random variable X is normally distributed with mean, μ = 65 inches and standard deviation σ = 2.4 inches.

To compute the probability of a normal random variable we first need to convert the raw score to a standardized score or z-score.

The standardized score of a raw score X is:

$z=\frac{X-\mu}{\sigma}$

These standardized scores follows a normal distribution with mean 0 and variance 1.

It is provided that Jennifer is taller than 70% of the population of U.S. women.

Let Jennifer's height be denoted by x.

Then according to the information given:

P (X > x) = 0.70

1 - P (X < x) = 0.70

P (X < x) = 0.30

⇒ P (Z < z) = 0.30

The z-score related to the probability above is:

z = -0.5244

*Use a z-table.

Compute the value of x as follows:

$z=\frac{X-\mu}{\sigma}$

$-0.5244=\frac{x-65}{2.4}$

$x=65-(0.5244\times 2.4)$

$=63.7414\\\approx63.7$

Thus, Jennifer's height is 63.7 inches.

3 0

3 years ago