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lorasvet [3.4K]
3 years ago
15

Please Help! I'm stuck!

Mathematics
1 answer:
atroni [7]3 years ago
8 0

Answer:

See attached image

Step-by-step explanation:

If you have two marbles in a bag and you are choosing the marbles randomly twice, then we can look at fractions.

Each time, you have a 0.5 chance of picking the silver marble. After you pick that, you have another 0.5 chance of picking the silver marble again.

This applies with any combination.

This means that the probability of you getting two silvers in a row is 0.25.

Since the marbles are the same size and nothing is stopping you from choosing one, this probability applies to all combinations possible.

Hope this helped!

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Solve the equation for x: 2x + 22 = 4(x+3)
Elina [12.6K]
2x + 22 = 4(x + 3)...distribute thru the parenthesis
2x + 22 = 4x + 12...subtract 2x from both sides, subtract 12 from both sides
22 - 12 = 4x - 2x...simplify
10 = 2x...divide both sides by 2
10/2 = x...reduce
5 = x <==
8 0
3 years ago
I need help with 16a and 17. i haven't been able to understand this in class and no one was able to help me
kompoz [17]
16a. 21cm. bc when it has 10 grams it  moves half of that to 5cm so divide 42 by 2 and you get 21cm

17. remember y=mx+b; m is slope and b is y-intercept
you have to put your equation from point slope to y=mx+b
4x+y=6 
subtract 4x from each side
y=-4x+6
slope = -4
y-intercept= 6

hope this helped :)

5 0
3 years ago
Solve the inequality<br> Z-2&gt;2<br> Z &gt; 2?
Troyanec [42]

Answer:

Z> 4

So Z> 2 is true

Step-by-step explanation:

Given that:

Z-2>2

Adding 2 on both sides

Z-2 + 2 >2 + 2

Z > 4

hence the equation Z > 2 is true

i hope it will help you!

5 0
3 years ago
Please help me with this
Xelga [282]

Answer:

30

Step-by-step explanation:

Use PEMDAS

parentheses is first

3+7=10

There's no exponents

You have to do it in order from left to right

6÷2=3

3*10=30

4 0
2 years ago
Read 2 more answers
What is the function transformation between f(x)=4x+5 and g(x)=- 4x+7 ?
nirvana33 [79]

Answer:

2

Step-by-step explanation:

8 0
3 years ago
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