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Veronika [31]
3 years ago
8

A box contains 150 black pens and 50 red pens. Jose said the sum of the probability that a randomly selected pen will not be bla

ck and the probability that the pen will not be red is 1. Explain whether you agree.
Mathematics
1 answer:
pishuonlain [190]3 years ago
3 0
Maybe it is black because 150is more than 50 so about 75/100
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If WXY is equilateral and WZY is<br> isosceles, find each missing measure.
timurjin [86]

Answer:

m∠1 = 60°

m∠2 = m∠4 = 39°

m∠3 = m∠5 = 21°

Step-by-step explanation:

ΔWXY is a equilateral angle,

Therefore, all angles of the the triangle are equal in measure.

m∠W + m∠X + m∠Y = 180°

3m∠W = 180°

m∠W = 60°

Since, ΔWZY is an isosceles triangle,

m∠3 = m∠5

m∠3 + m∠Z + m∠5 = 180°

m∠3 + 138° + m∠3 = 180°

2m∠3 = 180 - 138

m∠3 = 21°

Therefore, m∠3 = m∠5 = 21°

Since, m∠2 + m∠3 = 60°

m∠2 = 60 - 21

        = 39°

Since, m∠4 + m∠5 = 60°

m∠4 = 60 - 21

        = 39°

m∠1 = 60°

7 0
3 years ago
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Please can someone answer this
Alecsey [184]

Answer:

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Step-by-step explanation:

4 0
3 years ago
What is the value of the expression shown below 10+(2x3)^2 divided by 4x (1/2)^3
stira [4]

Answer:

10 + (2 x 3)^2 / 4 x (1/2) ^3

First do the parentheses

2 x 3 = 6

1 / 2 = 0.5

We are left with

10 + 6^2 /4 x 0.5^3

Do exponents

6 x 6 = 36

0.5 x 0.5 x 0.5 = 0.125

10 + 36 / 4 x 0.125

Divide by 4 and multiply by 0.125

36 / 4 = 9

9 x 0.125 = 1.125

We are left with

10 + 1.125 = 11.125

The answer is 11.125

Step-by-step explanation:

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katovenus [111]
3(6-4y)-2y=1
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18-14y=1
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andre [41]

Answer:

Step-by-step explanation:

3+3+4+5+6+6+7+7+7+8+8=64

64÷11=5.81818181818

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