Which expression is equivalent to 7\dfrac34 - \dfrac127 4
3
​
−
2
1
​
7, start fraction, 3, divided by, 4, end fraction, minus, start fraction, 1, divided by, 2, end fraction?
Choose 1
Choose 1

(Choice A)
A
\dfrac12+\left(-7\dfrac34\right)
2
1
​
+(−7
4
3
​
)start fraction, 1, divided by, 2, end fraction, plus, left parenthesis, minus, 7, start fraction, 3, divided by, 4, end fraction, right parenthesis

(Choice B)
B
7\dfrac34+\left(-\dfrac12\right)7
4
3
​
+(−
2
1
​
)7, start fraction, 3, divided by, 4, end fraction, plus, left parenthesis, minus, start fraction, 1, divided by, 2, end fraction, right parenthesis

(Choice C)
C
\dfrac12+7\dfrac34
2
1
​
+7
4
3
​
start fraction, 1, divided by, 2, end fraction, plus, 7, start fraction, 3, divided by, 4, end fraction

(Choice D)
D
-7\dfrac34+\left(-\dfrac12\right)−7
4
3
​
+(−
2
1
​
)

i need the options

step-by-step explanation:

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.

the answer is 0.000652422

but if you ment to ask what is 6131 divided by 4, it is 1532.75.

step-by-step explanation:

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step-by-step explanation:

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