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3 years ago

Plz help my with this!

Mathematics

1 answer:

Vera_Pavlovna [14]3 years ago

6 0

Answer:

approx. 23

Step-by-step explanation:

4+9+10=23

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On an exam with μ = 52, you have a score of X = 56. Which of the following values for the standard deviation would give you the

Aleonysh [2.5K]

Answer:

σ = 2 (option a)

Step-by-step explanation:

You would want the smallest standard deviation possible.

Think of it like this: if everyone, other than you, got only 50, 51, 52, 53 then you would be the ultimate highest position in the class.

As opposed to being an average position if the scores were about 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60 ---your score would not put you in the highest position in the class distribution.

So, a standard deviation of σ = 2 would give you the highest position in the class distribution.

5 0

2 years ago

Maya is taking her friends to a concert. Each ticket costs $25, and souvenir T-shirts are $12 each. There is a $4 service fee fo

evablogger [386]

Answer:

$25x+12y+4 \leq 130$

Step-by-step explanation:

Here, x represents the number of tickets and y represents the number of T-shirts.

As per the statement:

Each ticket costs $25, and souvenir T-shirts are $12 each

⇒Total cost of ticket = 25x and Total cost for T-shirt = 12y

It is also given that there is a $4 service fee for the entire purchase.

$25x+12y+4$

Since, she has $130

⇒ $25x+12y+4 \leq 130$

Therefore, an inequality could you use to answer the problem is, $25x+12y+4 \leq 130$

8 0

3 years ago

What is the image of the point (4,7) after a reflection about the line y = 4.?

lord [1]

Answer:

(4, 1)

Step-by-step explanation:

See attachment courtesy of Desmos.

8 0

3 years ago

How do you write 5 out of 6 in a fraction. Show how you got the answer.

antiseptic1488 [7]

Answer:

5/6

Step-by-step explanation:

bro ok this it ok okik

6 0

3 years ago

Read 2 more answers

David is buying fish for his aquarium. Clown fish cost $12 each and angel fish cost $7 each. If he has $100 to spend, and he wan

Anni [7]

Answer:

6 clown fish and 4 angel fish

Step-by-step explanation:

lets say he bought 8 clown fish.

12*8 = 96

the last 4 dollars wont be used.

lets say he bought 7 clown fish-

12*7 = 84

100 - 84 = 16. 16 is not a multiple of 7.

lets say he bought 6 clown fish,

12*6 = 72

100 - 72 = 28

28/7 = 4

If David has $100 dollars to spend and wants to spend every dollar, he can buy 6 clown fish and 4 angel fish.

3 0

2 years ago