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Reptile [31]
2 years ago
5

Help I forgot everything math because of homeschooling

Mathematics
2 answers:
marissa [1.9K]2 years ago
8 0
Closest I could get is A. 254.32
Luden [163]2 years ago
7 0

Answer:

254.34

Step-by-step explanation:

The formula for area of a circle is

A=pi *r^2

A=3.14*(9)^2

A=3.14*81

A=254.34

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I really need help and I have to show my work
Amanda [17]
10 lbs/$12= 1 lb/x dollars.
If you rewrite it up and down and not slanted, it would be clearer to understand, but anyways, you cross multiply:
12*1=12 
12/10= 1.2
So the answer is 1.2, if you put it on that bubble sheet, put 1, then a decimal, after the decimal 2, and then all 0's,.

8 0
3 years ago
You roll a six-sided die twice. What is the probability of rolling a 3 and then a 5? A) 1 3 B) 1 6 C) 1 12 D) 1 36
Molodets [167]

Answer:

D) 1/36

Step-by-step explanation:

You are trying to roll a 3 the first time, and then a 5 the second time. This means that order matters.

It is given to you, that you are rolling a standard die (6-sides). The dice is ordered in the following: 1, 2, 3, 4, 5, 6

The first time, you are rolling for a 3. Note that there is only one 3 in the sequence, so your chance of rolling a 3 is 1 out of 6: 1/6.

The second time, you are rolling for a 5. Note that there is only one 5 in the sequence, so your chance of rolling a 5 is 1 out of 6: 1/6.

Next, multiply the two fractions together to find the probability of rolling a 3 and then a 5:

1/6 x 1/6 = (1 x 1)/(6 x 6) = 1/36

D) 1/36 is your answer.

~

4 0
3 years ago
Read 2 more answers
A lock has four dials. On each dial are the digits 0 to 9 how many possible combinations are there
madam [21]

Answer:

10,000

Step-by-step explanation:

The combination consists of four digits, hence 0000 to 9999. There at 10^4 or 10,000 possible combinations (but only one that works).

7 0
3 years ago
Which of the following is not true? ​
Lisa [10]

Answer:

The last one.

Step-by-step explanation: Because 1/2 divided by 4 = 1/8 and 1/2 x 4/1 = 2

3 0
3 years ago
Please Help practice #3
algol [13]

Answer:

(2x+5)(4x+3)

Step-by-step explanation:

Given the expression 8x^2 + 26x + 15

Factorize

8x^2 + 26x + 15

= 8x^2 + 6x + 20x + 15

= 2x(4x+3) + 5 (4x+3)

= (2x+5)(4x+3)

Hence the factored form of the expression is (2x+5)(4x+3)

5 0
3 years ago
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