Question Continuation
if the measured weight of lead in the sample is
a.) 764.9g lead
b.)226.3g lead
c.) 53.5g lead
Answer:
a.
Relative Error = 0.065
b.
Relative Error = 0.221
c.
Relative Error = 0.935
Step-by-step explanation:
Given
Absolute Error = 0.5g
Relative error = absolute error/magnitude of measurement.
Relative error % = Relative error * 100
a.
Relative Error = 0.5/764.9 * 100
Relative Error = 50/764.9
Relative Error = 0.065
b.
Relative Error = 0.5/226.3 * 100
Relative Error = 50/226.3
Relative Error = 0.221
c.
Relative Error = 0.5/53.5 * 100
Relative Error = 50/53.5
Relative Error = 0.935
In Chemistry, the percent relative error is calculated by taking the absolute value of the error divided by the original measurement, and then multiplying by 100%. In this case, for a measured value of lead, the percent relative error would be (0.5 g / measured mass) * 100%.
The percent relative error in any measurement is calculated by taking the absolute value of the error divided by the measured value, all multiplied by 100% to get the result in percent forms. In this case, the absolute error is always 0.5 g (which means the values are consistently 0.5 g less than expected). The percent relative error would be calculated as follows:
Keep in mind, the relative error varies with each measured mass. Therefore, for each different measured mass of lead, you would substitute that value in place of M in the above formula to calculate the respective percent relative error.
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Simplify the expression using order of operations:25 - 5 + 36/9 - 6(7)
Answer:
-18
Step-by-step explanation:
Follow these steps to get your answer!
Divide 36/9 and multiply -6(7)
25 - 5 + 4 - 42
Subtract 25-5
20 + 4 -42
Add 4 to 20.
24-42
Subtract 42 from 24.
-18
Answer:
-18
Step-by-step explanation:
start with the figure in brackets. 6(7)=42
then do division. 36/9=4
our expression now is 25-5+4-42
addition first 25+4=29
finish with subtraction. 29-5-42=-18
answer=-18
Answer:
The null hypothesis is A) Drug X does cure disease Y
Step-by-step explanation:
Consider the provided information.
If there is no statistical significance in the test then it is know as the null which is denoted by , otherwise it is known as alternative hypothesis which denoted by .
A pharmaceutical company ran a clinical trial to test if drug X cures disease Y.
Since, claim is drug X cures disease.
Therefore, the null hypothesis is A) Drug X does cure disease Y
Answer:
1) 55/100
2) 68/100
3) 24/100
4)95/100
5) 72/100
6)44/100
7) 90%
8) 56%
9)35%
10)76%
11) 10%
12)80%
Step-by-step explanation:
Answer:
N is 11/20, A is 17/25, T is 6/25, E is 19/20, H is 18/25, I is 11/25, M is 90%, A is 56%, C is 35%, L is 76%, T is 10%, U is 80%
Step-by-step explanation:
The value of x for the given triangle side in the parallelogram will be 4.
A basic quadrilateral with two sets of parallel sides is known as a parallelogram.
A parallelogram's facing or opposing sides are of equal length, and its opposing angles are of similar size.
A triangle is a closed, 2-dimensional shape with 3 sides, 3 angles, and 3 vertices.
The area of a parallelogram is given as,
(1/2)(sum of parallel sides)(distance between parallel lines)
Area of parallelogram = (1/2)(14 + 14)(10) = 140 square meter.
The area of the right angle triangle = (1/2)base x height.
Area of triangle = (1/2)x × 10 = 5x
Total area = 140 + 5x
160 = 140 + 5x
5x = 20
x = 4
Hence "The value of x for the given triangle side in the parallelogram will be 4".
Learn more about parallelograms here,
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The given question is missing a parallelogram as attached below,
Answer:
80x2
Step-by-step explanation:
.