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Gennadij [26K]
3 years ago
15

X+2y=-4 find slope: x-intercept: y-intercept:

Mathematics
2 answers:
BlackZzzverrR [31]3 years ago
8 0
Sol_

Given equation is, x + 2y = -4

The given equation in Slope Intercept form is
x/(-4) + Y/(-2) = 0

Therefore, X-Intercept is -4 and Y-Intercept is -2. ( Ans )

Hope it helped!

thanks!
RSB [31]3 years ago
3 0

Answer: Slope is -1/2 Y-intercept is -2 x-intercept is -4 Hope this helps


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An urn contains 3 red and 7 black balls. Players A and B take turns (A goes first) withdrawing balls from the urn consecutively.
andrey2020 [161]

Answer:

The probability that A selects the first red ball is 0.5833.

Step-by-step explanation:

Given : An urn contains 3 red and 7 black balls. Players A and B take turns (A goes first) withdrawing balls from the urn consecutively.

To find : What is the probability that A selects the first red ball?

Solution :

A wins if the first red ball is drawn 1st,3rd,5th or 7th.

A red ball drawn first, there are E(1)= ^9C_2 places in which the other 2 red balls can be placed.

A red ball drawn third, there are E(3)= ^7C_2 places in which the other 2 red balls can be placed.

A red ball drawn fifth, there are E(5)= ^5C_2 places in which the other 2 red balls can be placed.

A red ball drawn seventh, there are E(7)= ^3C_2 places in which the other 2 red balls can be placed.

The total number of total event is S= ^{10}C_3

The probability that A selects the first red ball is

P(A \text{wins})=\frac{(^9C_2)+(^7C_2)+(^5C_2)+(^3C_2)}{^{10}C_3}

P(A \text{wins})=\frac{36+21+10+3}{120}

P(A \text{wins})=\frac{70}{120}

P(A \text{wins})=0.5833

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3 years ago
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Answer:

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Step-by-step example

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2 years ago
Please answer below :-)
Serjik [45]

Answer:

B. 88.8

Step-by-step explanation:

let x represent class y

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or

trial an error

replace x with each of the numbers and see if it plugs in.

example:

(80.5+71.2)/2=80

151.7/2=80

75.85=80?

false. incorrect

another example:

(88.8+71.2)/2=80

160/2=80

80=80?

true. correct

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Step-by-step explanation:

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Answer:

10 percent of 51 is 5.1

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