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3 years ago

No solution, one solution, or infinite solutions

Mathematics

1 answer:

aliina [53]3 years ago

4 0

GOD IS GREAT SPREAD THE WORD

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Which graph represents the following function? f(x)=-x+6

Murrr4er [49]

The answer is the one on the top

3 0

1 year ago

An urn contains 5 red balls and 2 green balls. Two balls are drawn one after the other. What is the probability that the second

AleksAgata [21]

Answer:

The probability that the second ball is red is 71%

Step-by-step explanation:

Probabilities

We know there are 5 red balls and 2 green balls. Let's analyze what can happen when two balls are drawn in sequence (no reposition).

The first ball can be red (R) or green (G). The probability that it's red is computed by

$\displaystyle P(R)=\frac{5}{7}$

The probability is's green is computed by

$\displaystyle P(G)=\frac{2}{7}$

If we have drawn a red ball, there are only 4 of them out of 6 in the urn, so the probability to draw a second red ball is

$\displaystyle P(RR)=\frac{5}{7}\cdot \frac{4}{6}=\frac{10}{21}$

If we have drawn a green ball, there are still 5 red balls out of 6 in the urn, so the probability to draw a red ball now is

$\displaystyle P(GR)=\frac{2}{7}\cdot \frac{5}{6}=\frac{5}{21}$

The total probability of the second ball being red is

$\displaystyle P(XR)=\frac{10}{21}+\frac{5}{21}=\frac{5}{7}=0.71$

The probability that the second ball is red is 71%

7 0

3 years ago

The diameter of a basketball rim is 18 inches. A standard basketball has a circumference of 30 inches. What is the distance betw

Romashka-Z-Leto [24]

Diameter of the basketball rim = 18 inches

Circumference of the standard basketball = 30 inches

Area of circle = π r²

Basketball rim = 3.14 * (18/2)² = 3.14 * 9² = 3.14 * 81 = 254.34 in²

Circumference of a circle = 2 π r

30 = 2 * 3.14 * r

r = 30 / (2*3.14) = 30 / 6.28 = 4.78 inches

Standard basketball = 3.14 * (4.78)² = 3.14 * 22.85 = 71.75 in²

254.34 - 71.75 = 182.59 in²

7 0

3 years ago

Read 2 more answers

80% of what how many games is 32 games?

Talja [164]

40 games would be 100% if 32 games is 80%

6 0

3 years ago

Solve y = x + 8 for x. x= y + 8 x=y - 8 x= -y + 8 x = -y - 8

Anna007 [38]

X = y - 8

Step by step
Y = x + 8
x + 8 = y
-8 -8
x = y - 8

3 0

2 years ago