Answer:
2, 3
1.01, 1
Percentage uncertainty
Step-by-step explanation:
a) The significant figures in the number 99 is 2
The significant figures in the number 100 is 3
b) Uncertainty in each of the numbers for both the numbers is 1
Percentage uncertainty
99
![\text{Percentage uncertainty}=\frac{\text{Uncertainty}}{Value}\times 100 \\\Rightarrow \text{Percentage uncertainty}=\frac{1}{99}\times 100=1.01](https://tex.z-dn.net/?f=%5Ctext%7BPercentage%20uncertainty%7D%3D%5Cfrac%7B%5Ctext%7BUncertainty%7D%7D%7BValue%7D%5Ctimes%20100%20%5C%5C%5CRightarrow%20%5Ctext%7BPercentage%20uncertainty%7D%3D%5Cfrac%7B1%7D%7B99%7D%5Ctimes%20100%3D1.01)
Percentage uncertainty = 1.01
100
![\text{Percentage uncertainty}=\frac{\text{Uncertainty}}{Value}\times 100 \\\Rightarrow \text{Percentage uncertainty}=\frac{1}{100}\times 100=1](https://tex.z-dn.net/?f=%5Ctext%7BPercentage%20uncertainty%7D%3D%5Cfrac%7B%5Ctext%7BUncertainty%7D%7D%7BValue%7D%5Ctimes%20100%20%5C%5C%5CRightarrow%20%5Ctext%7BPercentage%20uncertainty%7D%3D%5Cfrac%7B1%7D%7B100%7D%5Ctimes%20100%3D1)
Percentage uncertainty = 1
c) Percentage uncertainty is a better way to express the numbers as the significant figures do not show the actual value of the numbers.
The true statement is the circle has the radius equal to 7.
<h3>What is Equation of circle?</h3>
The general equation for a circle is (x-h)² + (y-k)² = r², where ( h, k ) is the center and r is the radius.
As, standard form of equation of circle is
(x-h)² + (y-k)² = r²
At origin, equation of circle will be
(0-h)² + (0-k)² = r²
r² = x² + y²
Now, The line intersects the circle at (0,7)
r² = 0² + 7²
r² =49
r=7.
Hence, the circle has the radius equal to 7.
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Answer:
x squared+4x−12
Step-by-step explanation:
Answer:
(f◦g)(2)
Step-by-step explanation:
The rule is that f(g(x))=(f◦g)(x)
Answer:
c
Step-by-step explanation: