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muminat
2 years ago
10

68x2 – 60y - 9x2 + y2​

Mathematics
1 answer:
Alex Ar [27]2 years ago
6 0
2(59-29y) or 118-58y
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Solve y over negative 2 5 = 13.
devlian [24]
Y/-2 + 5 = 13
y/-2 = 13 - 5 = 8
y = -2(8) = -16
y = -16
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2 years ago
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Here is a picture of the Ferris wheel has a radius of 40 m how far does the writer travel in one complete rotation around the Fe
Valentin [98]

Answer:

I'm getting points

Step-by-step explanation:

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2 years ago
Simplify each ratio. <br><br> 1) 40:15
Vilka [71]

Answer:

8:3

Step-by-step explanation:

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3 0
2 years ago
Suppose a large shipment of telephones contained 21% defectives. If a sample of size 498 is selected, what is the probability th
grandymaker [24]

Answer:

P(-3\% < x < 3\%) = 0.901

Step-by-step explanation:

Given

p = 21\%

n = 498

Required

P(-3\% < x < 3\%)

First, we calculate the z score

z = \sqrt{p * (1 - p)/n}

z = \sqrt{21\% * (1 - 21\%)/498}

z = \sqrt{21\% * (79\%)/498}

z = \sqrt{0.1659/498}

z = \sqrt{0.000333}

z = 0.0182

So:

P(-3\% < x < 3\%) = P(-3\%/0.0182 < z

P(-3\% < x < 3\%) = P(1.648 < z

From z probability, we have:

P(-3\% < x < 3\%) = 0.901

6 0
2 years ago
A number pyramid with faces 1-4 is tossed and a spinner a-f is spun. find p( even and vowel)
vovikov84 [41]

The probability of getting even and vowel is 1/6 if the number pyramid with faces 1-4 is tossed and a spinner a-f is spun option (b) is correct.

<h3>What is probability?</h3>

It is defined as the ratio of the number of favorable outcomes to the total number of outcomes, in other words the probability is the number that shows the happening of the event.

As we know:

When events are independent with and statement:

P(A and B) = P(A)×P(B)

Let's suppose P(A) = probability of getting even number

Which is P(A) = 2/4 = 1/2

P(B) = Probability of getting vowel

Which is P(B) = 2/6 = 1/3

P(A and B) = (1/2)(1/3) = 1/6

Thus, the probability of getting even and vowel is 1/6 if the number pyramid with faces 1-4 is tossed and a spinner a-f is spun.

Learn more about the probability here:

brainly.com/question/11234923

#SPJ1

8 0
1 year ago
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