3 years ago

Math practice Will give brainest if correct

Mathematics

1 answer:

svetoff [14.1K]3 years ago

5 0

Answer:

x > 24

Step-by-step explanation:

12 + 12 = 24

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-4x<20 X<-5 Describe the error that she made What the answer

gizmo_the_mogwai [7]

Answer:

your supposed to flip the sign for the less than or greater than sighs when dividing by a negative.

Step-by-step explanation:

-4x←20

x→-5

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3 years ago

The number of teams who entered in a 3-on-3 charity basketball tournament can be modeled by function T, where x is the number of

Svetradugi [14.3K]

Answer:

Option A:

$R(x)=20x^2+300x+1080$

Explanation:

The revenue, R(x) is the product of the number of teams who entered the tournament, T(x), times the entry fee paid by each team, F(x); then you can write:

$R(x)=T(x)\times F(x)$

Thus you must multiply the two functions (polynomials):

$R(x)=(4x+24)\times (5x+45)$

Use distributive property:

$R(x)=(4x+24)\times (5x+45)=(4x)(5x)+(4x)(45)+(24)(5x)+(24)(45)$

Simplify:

$R(x)=(4x)(5x)+(4x)(45)+(24)(5x)+(24)(45)=20x^2+180x+120x+1080$

Add like terms:

$R(x)=20x^2+180x+120x+1080=20x^2+300x+1080$

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3 years ago

Find the value of y for the given value of x. Round to the nearest hundredth. y = 15 + 3 ln x; x = 7.2

Nikolay [14]

Answer:

y = 20.922

Step-by-step explanation:

Simply plug in x and evaluate:

y = 15 + 3ln(7.2)

Only way to calculate ln is to plug into a calc:

We should get 20.9222 as our answer.

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3 years ago

the temperature at midnight is -3 degrees the weatherman predicts the temperature to be 25 degrees warmer by noon the next day.f

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Answer:the tempature will be 22 degrees (i dunno if you measure in Farenheight or celcius so dunno)

Step-by-step explanation: because if the tempature

would rise it would be 22 whatever you measure with

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4 years ago

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tamaranim1 [39]

Answer:

Step-by-step explanation:

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3 years ago