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Sergeu [11.5K]
3 years ago
12

In the function y=-1/2(x-1)^+3what effect does the negative sign

Mathematics
1 answer:
klio [65]3 years ago
7 0

Answer:

It's D, reflects over the x-axis

Step-by-step explanation:

When you have a negative symbol outside the parentheses, all the y values are being multiplied by -1. This means that the points will have the same x, just that the y values will all be the opposite sign.

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A 15% discount saves you $5 off the price of an electronic game. How much do you save off the regular price if the discount is w
chubhunter [2.5K]

Answer:

The 45% off discount saves an additional $10 compared to the 15% discount for a total of $15 off regular price.

Step-by-step explanation:

We can find the original price of the game through a proportion. A proportion is an equation where two ratios or fractions are equal. The ratios or fractions compare like quantities. For example, we will compare percent over percent to an equal ratio  of $ to $. Since 15% of 100% is the same ratio as $5 to the unknown original $ price, I write:

\frac{15}{100} =\frac{5}{y}

I can now cross-multiply by multiplying numerator and denominator from each ratio.

15y=100(5)\\15y=500

I now solve for y by dividing by 15.

\frac{15y}{15} =\frac{500}{15} \\y= 33.33333....

The original price was $33.34.

Now, we can find the amount if 45% off and then then compare the two discounts. To find the percent off I can multiply by 0.45(33.34)=15. The 45% off discount saves an additional $10 compared to the 15% discount.

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3 years ago
Answer the question below<br><br> 1 - (-4)
tensa zangetsu [6.8K]

Answer:

4

Step-by-step explanation:

7 0
3 years ago
Which events are not independent?
strojnjashka [21]
It Is D because pulling out a yellow marble is INDEPENDENT to pulling out a green marble which is also independent. hope I helped :]

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A jar contains 17 orange,7 pink, and 4 black marbles. A marble is drawn at random.What is the probability that the marble is pin
Grace [21]
Sample space = 17 + 7 + 4 = 28
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It is 

\frac{(2a+1) ^{2} }{50a}
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