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3 years ago

Given the graph of the polynomial function

Mathematics

1 answer:

jarptica [38.1K]3 years ago

3 0

Step-by-step explanation:

according to the graph, the correct answer is:

possitive : (-1, 2) and (6, oo)

negative : (-oo, -1) and (2, 6)

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You got paid $343 for 7 hours of work. Find the unit rate.

pshichka [43]

Answer:

$49 / hour

Step-by-step explanation:

343/7 = $49/hour

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3 years ago

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The key club made $192 at their candle sale.They sold round candles for $4 and square candles for $6.If they sold twice as many

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The answer will be 16x = 192 and x= 12 because the amount collected =x + 6 times 2x = 192

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A store gives a customer 20% off if $10 or more amount of product is purchased. Otherwise the customer pays the usual price at c

Nadya [2.5K]

Answer:

The expected payment by the customer at the checkout is $9.

Step-by-step explanation:

The amount of the product is given as

$f(x)=\left \{ {{\frac{50}{x^3} \,\,\,\,\, x\geq 5 } \atop {0}} \right.$

Now the expected payment is given as

$EP=\int\limits^{10}_{5} {x f(x)} \, dx +\int\limits^{\infty}_{10} {0.8x f(x)} \, dx$

Here 0.8 x is used in the second integral because of the discount of 20% i.e. the expected price is 80% of the value such that

$\\EP=\int\limits^{10}_{5} {x \frac{50}{x^3}} \, dx +\int\limits^{\infty}_{10} {0.8x \frac{50}{x^3}} \, dx\\\\EP=\int\limits^{10}_{5} {\frac{50}{x^2}} \, dx +\int\limits^{\infty}_{10} {\frac{40}{x^2}} \, dx\\EP=[\frac{50}{-x}]_5^{10} +[\frac{40}{-x}]_{10}^{\infty} \\EP=[\frac{-50}{10}+\frac{50}{5}] +[\frac{-40}{\infty}+\frac{40}{10}]\\\\EP=-5+10+0+4\\EP=9$

The expected payment by the customer at the checkout is $9.

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3 years ago

(Please 75 points if answerd need this is 1 min)

chubhunter [2.5K]

Answer:

(5,-4)

Step-by-step explanation:

If reflected over the x-axis, the quadrilateral would be in the fourth quadrant. N' would be at (1,-1) and P' at (6,-1). To reflect, look at the y-coordinate of the point and turn it to negative. With point Q, it's at (5,4) so we just flip the 4 to -4 and that's our point! (5,-4)

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2 years ago

HELP ME PLEASEEE! Ty:)

Jlenok [28]

I can help you if you mark me as braì LG

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2 years ago