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n200080 [17]
3 years ago
13

PLZ HELP

Mathematics
1 answer:
eduard3 years ago
5 0
The difference is whether the exponent attaches to just the 2 or to the negative sign as well

-2^4 = - (2x2x2x2) = -16

(-2^4) = -2 x -2 x -2 x -2 = +16
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Mike has been studying law for 9 years less than triple the amount of years Just (j) has studied. Write an expression to represe
Gekata [30.6K]
9-3 because triple equals to 3. Mike has been studying for 9 years, so 9-3 with no = sign.
7 0
3 years ago
Robin randomly selects a number between 1 and 20 what is the probabilty that the number selected is the square of a natural numb
Ket [755]
Squares of Natural numbers from the range of 1 to 20:
1^2 = 1
2^2 = 4
3^2 = 9
4^2 = 16
(whereas 5^2 = 25 which is outside the range).

There are 4 numbers out of 20, so the probability is 4/20*100% = 20%
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3 0
2 years ago
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In converting 9 yards to inches, what unit (omit the number) would you place in the numerator of your ratio? Use the plural form
Yanka [14]
Let
X/Y--------> the ratio

we know that
 
X/Y units --------> are inches/yards
9 yards*(X/Y ) inches/yards-------> 9*X/Y yards*inches/yards----> 9*X/Y inches
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the unit in the numerator of the ratio is inches

the answer is 
inches
6 0
3 years ago
A utility pole 10m high is supported by two guy wires. Each guy wire is anchored 3m from the base of the pole. How many meters o
klasskru [66]
You can use Pythagorean theorem to solve

10 squared + 3 squared = x squared
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109=x squared
square route 109 and x to get
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5 0
3 years ago
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when making a peanut butter and jelly sandwich, 96% of people put the peanut butter on first. write 96% as a decimal.
ikadub [295]
Drop the percent sign so that you only have 96 then divide by 100 to get the decimal (or move the decimal place to the left two).


96% --- drop the percent
96 ----- move the decimal place over to or divide by 100


96/100
96.0


.96
3 0
3 years ago
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