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1 year ago

REPOST 100 POINTS+BRAINLIEST 8th grade math- counting principle - 7 short questions

Mathematics

2 answers:

madreJ [45]1 year ago

7 0

I only have one for 12
12, 21
24, 42
36, 63
48, 84

pashok25 [27]1 year ago

7 0

Answer:

792 groups

Step-by-step explanation:

5 people can be in a group. There's 12 people. So we can just use combination.

12C5. = 12 * 11 * 10 *9 * 8 = 792

Also, just post one question at a time. We aren't allowed to post multiple answers.

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VI. PRACTICE TASKS

dimulka [17.4K]

Step-by-step explanation:

1 _ 1.215

2_ 4.0608

3_1.5225

4_0.2875

5_3.6064

8 0

2 years ago

Suppose that 71% of the surface of the Earth is covered in water, and a random number generator uses latitude and longitude to s

erik [133]

Answer:

.00059 or .0006

Step-by-step explanation:

You are trying to find what won't be in the water because there are many combinations so you use a complement formula.

1-0.79=0.29

Use the left over percentage in an equation to determine the probability.

$1-(0.29)^6=0.000594823$

The exponent 6 comes from the number of locations.

8 0

2 years ago

A rectangle is plotted on a coordinate plane. The four vertices are located at (−5,5), (−5,−3), (2,5), and (2,−3). What is the a

n200080 [17]

Answer:

56 square units

Step-by-step explanation:

I'd recomend using something like "Desmos" to plot the points so then you can see the points and the rectangle. Then count the length and width. For the this rectangle the length was 8 and the width was 7, multiply these and you get the answer of 56 sqaure units.

8 0

2 years ago

2a+4(7+5a)I need help

kolezko [41]

2a+4(7+5a)

Distribute 4 into 7 and 5a

2a+28+20a

Combine like terms

Final Answer: 22a+28

6 0

3 years ago

Read 2 more answers

Pls help will give brianlist

bazaltina [42]

Answer:

Not equivalent

Step-by-step explanation:

5:3

15:12 simplified = 5:4

3 0

2 years ago

Read 2 more answers