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2 years ago

Help plssssssssssssss

Mathematics

1 answer:

katen-ka-za [31]2 years ago

7 0

Answer: AB 90 IB 150 IC 135 AC 90

Step-by-step explanation:

All triangles have to equal 180, if B is 60 and I is 90, 60+90=150, 180-150=30 then A=30 if a equals 30 than 60+30=90 A+B=AB (same with the others.)

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One number is 3 less than another number if their sum is 49

Musya8 [376]

One number is 26 the other is 23

x+y=49

Y=x+3,X (now substitute it in the equation)

x+3+x=49

2x+3=49

2x=46. X=23

Y=x+3. Y=23+3 =26 for checking 23+26=49

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2 years ago

Find the mode of the data. 1, 2, 1, 3, 3, 4, 1 The mode is

drek231 [11]

Answer:

1 is the answer.

Step-by-step explanation:

The mode of a data set is the number that occurs most frequently in the set.

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2 years ago

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Veronika [31]

Answer:

1/3 x 3/4

Step-by-step explanation:

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hope this helps!

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2 years ago

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crimeas [40]

Answer:

A. x≥4 ( red on 4)

B. x≤4 ( red on 4)

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D. x<4 (blue on 4)

Step-by-step explanation:

illustrated

A. x≥4 ( red on 4)

B. x≤4 ( red on 4)

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3 years ago

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A box contains 5 red balls, 6 white balls and 9 black balls. Two balls are drawn at

valina [46]

Answer:

$P(Same)=\frac{61}{190}$

Step-by-step explanation:

Given

$Red = 5$

$White = 6$

$Black = 9$

Required

The probability of selecting 2 same colors when the first is not replaced

The total number of ball is:

$Total = 5 + 6 + 9$

$Total = 20$

This is calculated as:

$P(Same)=P(Red\ and\ Red) + P(White\ and\ White) + P(Black\ and\ Black)$

So, we have:

$P(Same)=\frac{n(Red)}{Total} * \frac{n(Red) - 1}{Total - 1} + \frac{n(White)}{Total} * \frac{n(White) - 1}{Total - 1} + \frac{n(Black)}{Total} * \frac{n(Black) - 1}{Total - 1}$