Check the picture below.
make sure your calculator is in Degree mode.
a² - b² = c²
b² + a² = c²
c² + a² = b²
c² - a² = b²
c² - b² = a²
Answer:
b² + a² = c²
c² - b² = a²
c² - a² = b²
Step-by-step explanation:
This is because its only addition so 2+2=4 no matter how you turn it around. And 4-2=2 is 2 no matter what.
Answer: 339
Step-by-step explanation:
Since the prior estimate of population proportion is unknown , then we take p= 0.5
Given : Margin of error : E=0.07
Critical value for 99% confidence interval :
Formula for sample size :-
Hence, the minimum sample size required = 339
i.e. they need to survey 339 residents.
To be at least 99% confident that the sample proportion is within 0.07 of the true proportion, the Arizona Department of Transportation needs to survey at least 753 residents.
To determine the minimum number of residents needed to survey in order to be at least 99% confident that the sample proportion is within 0.07 of the true proportion, we can use the formula:
n = (Zα/2)2p(1-p) / E2
Where:
Plugging in the values:
Calculating n:
n = (2.576)2(0.5)(1-0.5) / (0.07)2 = 752.92
Rounding up to the nearest whole number, the Arizona Department of Transportation needs to survey at least 753 residents to be at least 99% confident that the sample proportion is within 0.07 of the true proportion.
#SPJ3
(-3, 12); y = -3x + 5
Answer: y = -3x + 3 or y = 3 - 3x
Step-by-step explanation:
First, we need to determine our slope. Thankfully for us, the slope of a line parallel to another is the same.
So our slope is -3.
Now, we need to find our y-intercept. To do that, we will use y = mx + b. y is the y-coordinate, m is the slope, x is the x-coordinate, and b is the y-intercept.
Plug in the numbers given.
12 = -3(-3) + b
Simplify.
12 = 9 + b
Subtract 9 from both sides.
12 - 9 = 9 - 9 + b
3 = b
Our y-intercept is 3.
Now, we just put everything together.
y = -3x + 3
The line parallel to y = -3x + 5 that passes through the point (-3, 12) is
y = -3x + 3 or y = 3 - 3x (both are the same just written differently)
Christopher Columbus set sail from Spain in 1492. In what year did the Civil War end?
Answer:
The civil war ended in 1865
Answer:
1865
Step-by-step explanation:
to 2.5 meters?
Answer:
250 centimeters
Step-by-step explanation:
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