4 years ago

Need help with a math problem

Mathematics

1 answer:

Greeley [361]4 years ago

6 0

The answer would be $159.85

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Suppose that y varies inversely with x. Write an equation for the inverse variation.

Slav-nsk [51]

Answer is <span>c. y=10/x,

2=10/5
2=2
y=k/x -inverse variation, k - constant</span>

3 0

3 years ago

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What is the slope of a line passing through the points (2, 5) and (0, −4)?

earnstyle [38]

Answer:

9/2

Step-by-step explanation:

We can use the slope formula

m = ( y2-y1)/(x2-x1)

= ( -4 -5)/( 0 -2)

= -9/-2

= 9/2

6 0

3 years ago

here are 55 black balls and 99 red balls in an urn. If 44 balls are drawn without replacement, what is the probability that exac

ElenaW [278]

Answer:

P=0.0899.

Step-by-step explanation:

We know that are 5 black balls and 9 red balls in an urn. If 4 balls are drawn without replacement. We calculate the probability that exactly 3 black balls are drawn.

Therefore, we have 14 balls in an urn.

We calculate the number of possible combinations:

$C_4^{14}=\frac{14!}{4!(14-4)!}=1001\\$

We calculate the number of favorable combinations:

$C_3^5\cdot C^9_1=10\cdot 9=90$

Therefore, the probability is:

P=90/1001

P=0.0899.

3 0

3 years ago

Is the quotient of -125 and five positive negative or zero

saul85 [17]

Answer:

negative

Step-by-step explanation:

we know this because a negative divided by a positive is a negative

4 0

3 years ago

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In the equation y=a(x-h)^2+k, the "k" translates the parabola in what manner?

stellarik [79]

Answer:

k is the vertical shift

Step-by-step explanation:

y=a(x-h)^2+k

This gives the parabola in vertex form

(h,k) is the vertex where h is the x coordinate and k is the y coordinate

k is the vertical shift

4 0

3 years ago