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Pie
3 years ago
8

If you count by 5's, you have to count times.

Mathematics
1 answer:
GREYUIT [131]3 years ago
5 0

Answer:

just count in multiplication

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The United States has been a country for almost 240 years how many days is this
zmey [24]

Answer:

87600

Step-by-step explanation:

You do the number of days in a year, 365 times the number of years, 240 and get 87600

7 0
3 years ago
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41 ÷ 533 long division r what
goblinko [34]

Answer:

13

Step-by-step explanation:

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5 0
2 years ago
Which of the expressions is rational
miv72 [106K]

Answer:

the third one

Step-by-step explanation:

the square root of 25 is 5. 5+2 = 7.

this is a rational number (the set of all integers and fractions).

the other 2 portions contain at least one element that is not rational. and so the sum with such a number is not rational.

45 and 7 are no square numbers, and therefore the square root of these numbers contains a neverending chain of digits after the decimal point without having any repeating pattern. these are real numbers but not rational numbers.

6 0
2 years ago
2x= -10 what is x??????
Reptile [31]
The correct answer is X = -5
5 0
3 years ago
Find the first 4 terms in the expansion of ( 1 + x 2 ) 8. Use your answer to find the value of ( 1.01 ) 8
anyanavicka [17]

(1+x^2)^8

=(1+8x^2+8*7/(1*2)x^4+8*7*6/(1*2*3)x^6+8*7*6*5/(1*2*3*4)x^8+....)

=1+8x^2+28x^4+56x^6+70x^8+....)

For x<1, higher power terms diminish in value, hence we can approximate powers of numbers.

1.01=(1+0.1^2) => x=0.1 in the above expansion

(1.01)^8

=1+8(0.1^2)+28(0.1^4)+56(0.1^6) [ limited to four terms, as requested]

=1+0.08+0.0028+0.000056 (+0.00000070)

=1.082856 (approximately)

7 0
3 years ago
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