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Doss [256]
3 years ago
12

A survey in one middle school showed that 4 out of 9 students help cook meals at home. Predict how many out of the 720 students

in the school help cook meals at home.
Mathematics
1 answer:
valentinak56 [21]3 years ago
5 0

Answer:

yes b

Step-by-step explanation:

yes

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Don’t worry about the second question
matrenka [14]

Answer:

ok

Step-by-step explanation:

okokokokokokokokok

8 0
2 years ago
The numbers 1-4 are each written on an index card. The 4 cards are put into a bag and 2 of them are drawn at random. What is the
devlian [24]

Answer:

Step-by-step explanation:

Write a list of all possible outcomes

1-2

1-3

1-4

2-1

2-3

2-4

3-1

3-2

3-4

4-1

4-2

4-3

There are 12 possible outcomes. How many of them have totals of 6 or 7

I count 4

So the probability is 4/12 = 1/3, just as you said.

Is there an easier way?

You might be able to get the 12 easier.

You have 4 choices for the first number and 3 for the second.

P(12) = 4*3 = 12

Getting 6 or 7 might be somewhat trickier.

4 and 3 make seven. That gives two ways 4-3 and 3-4

4 and 2 make six. That gives 2 more ways 4-2 and 2-4

That's all that's possible.

answer: 4 ways make success. The total number of ways is 12.

7 0
3 years ago
0 find the smallest values of n which will guarantee a theoretical error less than if the integral is estimated by: (a) the trap
goldenfox [79]

Answer:

Step-by-step explanation:

Check attachment for answers.

3 0
3 years ago
Read 2 more answers
Can you simplify 6/60?
Slav-nsk [51]
Yes divide by 6 both top and bottom and u get 1/10
8 0
3 years ago
Read 2 more answers
Answer 15 points <br> ( don’t answer if you don’t the answer )
BabaBlast [244]

Answer:

V=1/3hπr². Basically, 1/3 x height x 3.14 (pi) x radius squared.

Step-by-step explanation:

The formula of figure 2 would be 1/3 x 15 x 3.14 x 8 squared.  The volume of figure 2 would be 1005.30965

the formula for figure 3 would be 1/3 x 15 x 3.14 x 4 squared. The volume of it would be 251.32741

hope this helps! (Also please make me brainliest if this helps u :) )

8 0
2 years ago
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