Xander is taking a 5 question quiz worth 100 points. Each question is worth 20 points. Write an equation in function notation that represents his score for x number of questions answered correctly.

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Answer 1

Answer: Add 100 +20 - 5 and the total is the resort

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A bowl contains 50 jellybeans: 25 red jellybeans, 15 green jellybeans, and 10 yellow jellybeans. If you pick a jellybean without looking, what is the probability that you’ll pick a green jellybean?A) 1 B) 3/10 c) 1/2 D) 1/5
In the last 2 weeks, a plant grew 1/16 in. and 3/16 in. respectively.How much did the plant grow in the last 2 weeks? Express your answer in lowest terms.in.
What is the solution to the inequality?5x + 8 > –12A.x < –4B.x < 4C.x > –4D.x > 4
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Solve the system of equationsy=2x^2-3
y=3x-1
A. no solutions
B.(-1/2,5)(2-5/2)
C.(-1/2,-5/2)(2,5)
D.(1/2,5/2)(2,5)

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Dhere, we go by the same exact principle, but the terms are not a,b,c.

Which inequality is represented by this graph?

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Answer: Choice B. $y \le -(1)/(3)x+1$

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Explanation:

We need to know the equation of the boundary line. This boundary goes through (0,1) and (3,0). Find the slope of the line through these points

m = (y2-y1)/(x2-x1)

m = (0-1)/(3-0)

m = -1/3, negative slope means the line goes downhill as we move from left to right.

The y intercept is b = 1 as this is where the boundary crosses through the y axis

y = mx+b turns into y = (-1/3)x+1 after replacing m and b with m = -1/3 and b = 1 respectively.

The equation of the boundary line is y = (-1/3)x+1

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The shading is below the boundary, so we'll have a "less than" sign involved here. More specifically, we'll have a "less than or equal to" sign because the boundary is a solid line rather than a dashed one. A solid line tells us "points on the boundary are part of the solution set". The inclusion is because of the "or equal to" portion.

Change the equal sign to a less than or equal to sign to get the final answer of $y \le -(1)/(3)x+1$ which is choice B.

Jill bought a lamp for $40. She sold it at a garage sale for $12. What was the approximate decrease?

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Answer:

she was left with 28$ I'm in high school i think I'm right

Step-by-step explanation:

What is the slope of the line that passes through the points (-2, -3), and (5, 4)?

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The to your question answer is 1

$\bf \begin{array}{lllll} &x_1&y_1&x_2&y_2\n % (a,b) &({{ -2}}\quad ,&{{ -3}})\quad % (c,d) &({{ 5}}\quad ,&{{ 4}}) \end{array} \n\quad \n\n % slope = m slope = {{ m}}= \cfrac{rise}{run} \implies \cfrac{{{ y_2}}-{{ y_1}}}{{{ x_2}}-{{ x_1}}}\implies \cfrac{4-(-3)}{5-(-2)}\implies \cfrac{4+3}{5+2}$

Lauren Petus paid $27 for a dress that was 10% off the list price. What was the list price of the dress?

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$30

27/0.90=30
I think this is right sorry if it’s not

In a basketball game, the home team scores (2m+39) points and the away team scores (3m+40) points, where m is the number of minutes since halftime. Who wins the game. What is the difference in the scores m minutes after halftime?

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Answer: The away team will win by m + 1 points

Step-by-step explanation: Minutes can't be negative, so m must either always be positive, or be 0 for a minute then positive for the rest of the game. Therefore, for any positive value m, 3m + 40 will always be greater than 2m + 39. So, the away team will win. To get the difference in points, subtract the two expressions to get m + 1

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