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Sphinxa [80]
4 years ago
8

The graph below shows three different normal distributions. 3 normal distributions are shown. All 3 are at different points on t

he axis. They all have different heights and widths. Which statement must be true? Each distribution has the same mean and the same standard deviation. Each distribution has the same mean and a different standard deviation. Each distribution has a different mean and the same standard deviation. Each distribution has a different mean and a different standard deviation.
Mathematics
2 answers:
tatyana61 [14]4 years ago
4 0

Answer:

D

Step-by-step explanation:

Oduvanchick [21]4 years ago
3 0

Answer:

D: Each distribution has a different mean and a different standard deviation.

Step-by-step explanation:

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Marisa painted 1/2 of her bedroom in 3/4 of an hour. At this rate, how long would it take her to paint the entire room?
marishachu [46]
6/8 because she painted half of her room in 3/4 of an hour and add half of that and you get 6/8! Hope this helps! Im not very good at math so don't judge me if its wrong...
8 0
4 years ago
Read 2 more answers
A multiple-choice question has 3 options. What is the percentage that you will choose the WRONG option?
sukhopar [10]

Answer:

66%

Step-by-step explanation: 2/3 is .66666666666666...

4 0
4 years ago
PLEASE SOLVE THIS :(<br>​
Lesechka [4]

Answer:

10.5 %

<u>Skills needed: Financial Math Essentials</u>

Step-by-step explanation:

1) First, before getting started, let's assume the price of the product is x. This variable will be used a lot throughout the problem (x).

2) Marking a price above means increasing the price in order to make money off of the purchased product. When raising something by y percent, the new price would be x + \frac{y}{100}*x.

---> In this case, the price increased by \textbf{30} percent.

This means that it would be: x+\frac{30}{100}x = x+0.3x=1.3x

New price is: 1.3x

3) The shopkeeper is then offering a \textbf{15} percent discount off of this marked price. When offering a b percent discount price, the new price (with discount), expressed algebraically is: a-\frac{b}{100}a

---> the expression above simplifies to (1-\frac{b}{100})a

In this case, a=1.3x, b=15

---> (1-\frac{15}{100})*1.3x = (1-0.15)*1.3x=0.85*1.3x=1.105x

This means that x, with discount, has been raised \textbf{10.5 percent}.

10.5 % is the profit percent

(The profit percent being the final marked up price - purchased price)

5 0
3 years ago
Sarah is allowed to watch no more than 10 hours of television each week. Sarah has already watched 6 hours of television. Define
sashaice [31]

Answer:

Inequality = 6 + x ≤ 10

x(Number of hours more of television Sarah can still watch this week) = 4 hours

Step-by-step explanation:

Define a variable, set up an inequality and solve that inequality to determine how many more hours of television Sarah can watch this week.

We are told in the question that:

Sarah is allowed to watch no more than 10 hours of television each week.

This means :

Sarah can watch tv for less than or equal to 10 hours in a week. Sarah has already watched 6 hours of television.

Hence:

The number of hours left that Sarah can watch television in a week is represented as x

Our Inequality Equation =

6hours + x hours ≤ 10 hours

6 + x ≤ 10

Solving the inequality

x ≤ 10 - 6

x ≤ 4 hours

This means Sarah still has no more than (less than or equal to) 4 hours or television left to watch in this week

7 0
3 years ago
Find the value of x in each case:
djverab [1.8K]

Answer:

no bruh

Step-by-step explanation:

4 0
3 years ago
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