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3 years ago

PLS HELP ME ASAP FOR 8, 9, 10, and 11!!! (SHOW WORK!!! FOR ALL SHOW WORK!!!!! +LOTS OF POINTS!!

Mathematics

2 answers:

Hoochie [10]3 years ago

8 0

8. 4j -2j -5k +3k (combine like terms)

2j -2k

B

9. -6m+4m +2n-3n
-2m-1n

D

10. ( 2x-1) + (3x-1) +(3x-1)
2x+3x+3x -1-1-1
8x-3

D

Dovator [93]3 years ago

7 0

8. B 9. D 10. D 11A. -4r+2s-9

For all of them you just combine like terms, or in other words combine the sections that have the same variable.

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3(x+y)=y if (x y) is a solution to the equation above and y=0 what is the ratio x/y

Alona [7]

The equation can be rewritten as x = -2/3 y, so x/y = -2/3
However, for y=0, the ratio is undefined as you would be dividing by 0??

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3 years ago

Jerome is going to draw a marble from the bag shown below, replace it, and then draw another marble. What is the probability tha

alexira [117]

Marbles in a bag: 3 green, 4 yellow, 5 blue, 8 pink.

Event A - get a green or yellow marble
Event B - get a pink marble

Events A and B are independent because we draw a marble from a bag with 20 marbles in both cases.
$P(A)= \frac{3+4}{3+4+5+8}= \frac{7}{20} 
\\P(B)= \frac{8}{3+4+5+8}= \frac{8}{20} = \frac{2}{5}$

Probability of combined events is
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7 0

3 years ago

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Given the following sequence:<br>3,6,12,24

Mars2501 [29]

Answer:

It is a GP.

Step-by-step explanation:

a = 3

r = 2

a(n) term = ar^n

As it increases as multiples, it is a geometric progression or a GP.

8 0

2 years ago

PLEASE HELPPPPP PLEAAASEE

nata0808 [166]

Answer:

11%

Step-by-step explanation:

The full circle graph represents 100% of the given population. All populations are given except for "three or more." Adding all percentages of each population should add up to 100%.

No absences (none): 23%

One absence: 45%

Two absences: 21%

Three more absences: unknown.

Let the variable x represent the unknown population.

23% + 45% + 21% + x = 100%

Combine like terms.

89% + x = 100%

Subtract 89% from both sides.

x = 11%

To put it more simply, subtract all the percentages from 100% to get the percent of the missing population. 100 - 23 - 45 - 21 = 11

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3 years ago

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Find the quotient and reminder: 2,697/12

Lelechka [254]

Answer:

224 with a remainder of 9

4 0

3 years ago

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