What is the value of this expression when g= -3.5?8-|2g-5|a. 20b. 10c. 6d. -4
2 answers:
Answer:
D. -4
Step-by-step explanation:
We are given this expression:
and asked to evaluate when g= -3.5 Therefore, we must substitute -3.5 in for g.
First, multiply 2 and -3.5
2 * -3.5 = -7
Next, subtract 5 from -7.
-7-5= -12
Next, evaluate the absolute value of -12. The absolute value is how far away a number is from 0, and it is always positive. The absolute value of -12 is 12.
Subtract 12 from 8.
The value of the expression is -4 and D is the correct answer.
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Answer:
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Step-by-step explanation:
Distance = Rate * Time
We know the rate, 80 miles per hour.
We know the time, 3.75 hours.
As these use the same time unit, hours, we don't need to change any values.
We can just put these values into the formula:
Answer: 300 miles.
Answer:
x = 23
Step-by-step explanation:
Since the triangles are similar then the ratios of corresponding sides are equal, that is
=
=
= 3
multiply both sides by (x - 10)
3(x - 10) = 39 ( divide both sides by 3 )
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x = 23