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2 years ago

Help me pls i have a test soon

Mathematics

2 answers:

erik [133]2 years ago

4 0

Answer:

I believe it is true, false, true, true.

Step-by-step explanation:

there are no green marbles, there are way more yellow marbles then even blue and red combined, you could get a blue one being the odds 5/16, and there are only 2 red marbles so it is unlikely that you choose red. I hope this helps!

Naddika [18.5K]2 years ago

3 0

Answer:

true false true true

Step-by-step explanation:

there is no green marbles

you are most likely to get a yellow

blue marble is gonna be selected

there's only 2 red marbles low chance of getting choose.

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Alaska has a land area of about 1,700,000 km2. florida has a land area 1/10 the size of alaska. what is the la nd area of florid

AlekseyPX

All you have to do is multiply 1,700,000 by .1 or you could divide 1,700,000 by 10 if you prefer that. The answer would be 170,000.

7 0

4 years ago

What is the result of isolating x2 in the equation below?(x + 1)2 + ( -8)2 =9A. x2 = -y2 - 2x +16y - 56B. x2 = y2 +2x+16y +56C.

Anit [1.1K]

The expression we have is:

$(x+1)^2+(y-8)^2=9$

Step 1. Use the binomial square formula:

$(a+b)=a^2+2ab+b^2$

Applying this formula to the first binomial squared:

$x^2+2x+1+(y-8)^2=9$

Step 2. Apply the formula for the square of a binomial to the second binomial:

$x^2+2x+1+y^2+2(y)(-8)+(-8)^2^{}=9$

In this case, we have some operations to solve before we move on to isolating x. So we solve the operations:

$x^2+2x+1+y^2-16y+64^{}=9$

Step 3. Move the terms that are not x squared to the right side of the expression. Remember that when we move one term from one side of the equation to the other, the term must change its sign. We get the following:

$x^2=9-2x-1-y^2+16y-64$

Step 4. Combine like terms and arrange terms in order from the greatest exponent to the lowest and leave the independent term at the end:

$x^2=-y^2-2x+16y-56$

And that is the final result, which is option A.

Answer: Option A.

3 0

1 year ago

What percent of 60 is 12? Show your work.

Semmy [17]

Percent formula : is/of = %/100
is = 12
of = 60
% = x
now we sub

12/60 = x/100
cross multiply
(60)(x) = (12)(100)
60x = 1200
x = 1200/60
x = 20

check..
0.20(60) = 12
12 = 12 (correct)

so 20% of 60 is 12

7 0

3 years ago

Read 2 more answers

Find the surface area of the right triangular prism.

blsea [12.9K]

Answer:

468in

Step-by-step explanation:

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3 years ago

Simplify: (9w9 + 4w - 4)+(2w9 +6w +9)

kirill115 [55]

Answer: Its 11w9+10w+5

Step-by-step explanation:

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3 years ago