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8090 [49]
2 years ago
5

Obtain an estimate for the following computation by rounding the numbers so that the resulting arithmetic can easily be performe

d by hand or in your head. Then, use a calculator to
perform the computation How reasonable is your estimate when compared to the actual answer?
2815-15.458
An estimate of the difference is (Type a whole number
Mathematics
1 answer:
uranmaximum [27]2 years ago
3 0

Answer:

Step-by-step explanation:

2915 can stay as it is; 15.458 should be rounded down to 15.  Then we have

2915-15, or 2900 (which is a very reasonable estimate).

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Two sides of a triangle measure 8 cm and 12 cm. Which answer CANNOT be the measure of the third side? 4, 8, 12, or 16?
scoundrel [369]
(8+12) > side > |8-12|
20 > side > 4, Then 4 cm is the solution.

Whit a triangle solver: http://triancal.esy.es/?a=8&b=12


4 0
3 years ago
He total variance is $35000 f. the total materials variance is $14000 f. the total labor variance is twice the total overhead va
TiliK225 [7]
Assume that the total overhead variance is x
We are given that the total labor variance is twice the total overhead variance. This means that, the total labor variance is 2x

Total variance can be calculated as follows:
Total variance = Total materials variance + Total overhead variance
                          + Total labor variance

We have:
Total variance = $35000
Total materials variance = $14000
Total overhead variance = x
Total labor variance = 2x

Substitute in the equation and solve for x as follows:
35000 = 14000 + x + 2x
35000 - 14000 = 3x
21000 = 3x
x = 21000/3
x = 7000

Based on the above calculations:
Total overhead variance = x = $7000
Total labor variance = 2x = 2*7000 = $14000
4 0
3 years ago
Find the standard deviation and variance of the sample 93, 73, 76, 86, 98.
Novay_Z [31]
Total Numbers = 5
Mean (Average) = 85.2
Standard deviation = 10.70981
Variance(Standard deviation) = 114.7
Population Standard deviation = 9.57914
Variance(Population Standard deviation) = 91.76


5 0
2 years ago
Show how you got y answers
trasher [3.6K]

Answer:

y = x - 3

Step-by-step explanation:

3x - 3y = 9

3x - 9 = 3y

x - 3 = y

y = x - 3

Then plug and chug for y by entering the given x values

3 0
3 years ago
Which of the following statements are true?
astraxan [27]
C I think the answer is
8 0
3 years ago
Read 2 more answers
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