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Solnce55 [7]
3 years ago
7

4. Mrs. Johnson informed her studentsthat their exam will have at most 25questions.​

Mathematics
1 answer:
Ivan3 years ago
7 0

Answer:

The correct answer is 20 questions she took some off.

Step-by-step explanation:

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In general, when a number written in scientific notation includes a positive exponent, the magnitude of the number is __________
Masteriza [31]
Scientific notation is als<span>o </span>called power-of-10 notation, is a method of writing extremely large and small numbers.

when a number written in scientific notation includes a positive exponent, the magnitude of the number is <span>greater than one</span>
8 0
3 years ago
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Help me with number 10 pleaseeeeeeeeee
valina [46]

Answer:

4' - 9.64

Step-by-step explanation:

Total rise = 2' - 7"

Total run = 3' - 9"

Converting to inches :

1' = 12" ; 1 feet = 12 inches

2' = 2 * 12 = 24"

3' = 3 * 12 = 36"

Total rise = 24" + 7" = 31"

Total run = 36" + 9" = 45"

Length of stringer = hypotenus

Hypotenus = √(total rise² + total run²)

Hypotenus = √(31² + 45²)

Hypotenus = 54.644304"

= 4' - 9.64"

6 0
3 years ago
Simplify the expression (2^-4)^-2
Vedmedyk [2.9K]

Answer:

256

Step-by-step explanation:

Hope this helps!

If not, I am sorry.

6 0
1 year ago
16a, b, c, and 18a, b, c
Oliga [24]

I can answer 18 for you, but I don't understand 16

18. Since when we lose 3 girls the ratio for the girls side drops by 1, that tells us that 1 digit equals 3 people.

a) 5*3=15 so our answer is 15 girls.

b) 4*3=12 and 5*3=15 so 15+12, our answer would be 27

7 0
3 years ago
Ony paid $9.87 for 3 boxes of tissue. <br><br> How much did he pay for each box? <br><br> $
suter [353]
You would have to pay 3.29 for each box of tissues
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3 years ago
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