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2 years ago

Solve d = c π for π. A) π = cd B) π = c d C) π = d c D) π = c − d

Mathematics

2 answers:

alexdok [17]2 years ago

8 0

Answer:

the answer is b

Step-by-step explanation:

charle [14.2K]2 years ago

4 0

Answer:

The answer is B

Step-by-step explanation:

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Write the standard equation of a circle with center (2, −5) and radius 16.

astra-53 [7]

The standard equation of circle when center is (h,k) and radius is 'r'

$\left ( x - h \right )^{2} + \left ( y - k \right )^{2} = r^{2}$

h = 2 and k = - 5, radius = 16

So equation of the circle is given by

$\left ( x - 2 \right )^{2} + \left ( y - (-5) \right )^{2} = 16^{2}$

$\left ( x - 2 \right )^{2} + \left ( y + 5) \right )^{2} = 256$

7 0

2 years ago

Read 2 more answers

How can you analyze the numerator and/or the denominator in a rational expression to locate the x-intercepts?

andre [41]

Answer:

$x=0$ for $f(x)=\frac{P(x)}{Q(x)}$ , with $Q(x) \neq 0$ .

Step-by-step explanation:

To obtain x-intercepts, we need to give certain value, specifically $x=0$ .

However, in case of a rational function, we must make sure that $x=0$ doesn't makes the denominator null, beacuse in that case the function is undefined.

Therefore, for x-intercepts we must say

$x=0$ for $f(x)=\frac{P(x)}{Q(x)}$ , with $Q(x) \neq 0$ .

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2 years ago

Suppose 40% of the students in a university are baseball players. If a sample of 781 students is selected, what is the probabili

3241004551 [841]

Answer:

$P(p>0.43) = 0.0436$

Step-by-step explanation:

Given

$p = 40\%$ -- proportion of baseball players

$n = 781$ --- selected sample

Required

Determine P(p>43%)

First, calculate the z score using:

$Z = \frac{\^{p}-p}{\sqrt{\frac{p(1-p)}{n}}}$

This gives:

$Z = \frac{48\%-40\%}{\sqrt{\frac{40\% *(1 - 40\%)}{781}}}$

Convert % to decimal

$Z = \frac{0.43-0.40}{\sqrt{\frac{0.40 *(1 - 0.40)}{781}}}$

$Z = \frac{0.43-0.40}{\sqrt{\frac{0.40 *0.60}{781}}}$

$Z = \frac{0.43-0.40}{\sqrt{\frac{0.24}{781}}}$

$Z = \frac{0.03}{\sqrt{0.00030729833}}$

$Z = \frac{0.03}{0.01752992669}$

$Z = 1.71$

So:

$P(p>0.43) = P(Z>1.71)$

$P(p>0.43) = 1 - P(Z$

$P(p>0.43) = 1 - 0.9564$

$P(p>0.43) = 0.0436$

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2 years ago

solve the systems of equations via graphing then check the solution in each equation: 4x+6y=18, (y+2)=1/3(x+2)

Mariulka [41]

just wondering are you still stuck

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2 years ago

If I am in Vermont, then I am in the North.

raketka [301]

The correct answer is D.

This is because a converse statement switches the places of the hypothesis and conclusion.

6 0

2 years ago