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Papessa [141]
3 years ago
6

What is 2.5 (x - 1) + 4.5 (-x - 2)

Mathematics
2 answers:
yaroslaw [1]3 years ago
8 0

Answer:

2.5(x-1)+4.5(-x-2)

2.5x-2.5-4.5x-9

-2x-11.5

Step-by-step explanation:

Stels [109]3 years ago
3 0

Answer:

2x-11.5

Step-by-step explanation:

2.5(x-1)+4.5(-x-2)\\2.5x-2.5+4.5x-9\\2.5+2x-9\\2x-11.5

hope this helps

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F (x) = – x2 + 4x + 1
lora16 [44]

Answer:

x = 0 or x = 3

Step-by-step explanation:

if f(x) = g(x) then – x2 + 4x + 1 = x + 1

add the like terms

-x^2 +3x = 0

-x (x-3) = 0 then x is either 0 or 3

6 0
3 years ago
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sari ran for class president. each student in her class voted one time. sari won 25% of the student votes. if sari recived 60 vo
Mice21 [21]

The number of students who voted is 240.

<h3>How many students voted?</h3>

Percentage can be described as a fraction out of an amount that is usually expressed as a number out of hundred.

The number of students who voted = number of votes Sari received / percentage number

60 / 0.25 = 240

To learn more about percentages, please check: brainly.com/question/25764815

#SPJ1

4 0
2 years ago
Evaluate the difference quotient<br> f(x)-f(1)/X-1, where f(x)=X +5/x+1
Arisa [49]

Answer:

C) \displaystyle\frac{-2}{(x+1)}

Step-by-step explanation:

\displaystyle \frac{f(x)-f(1)}{x-1}\\ \\\frac{\frac{x+5}{x+1}-\frac{1+5}{1+1}}{x-1}\\ \\\frac{\frac{x+5}{x+1}-\frac{6}{2}}{x-1}\\\\\frac{\frac{2(x+5)}{2(x+1)}-\frac{6(x+1)}{2(x+1)}}{x-1}\\\\\frac{\frac{2(x+5)-6(x+1)}{2(x+1)}}{x-1}\\\\\frac{\frac{2x+10-6x-6}{2(x+1)}}{x-1}\\\\\frac{\frac{-4x+4}{2(x+1)}}{x-1}\\\\\frac{\frac{-4(x-1)}{2(x+1)}}{x-1}\\\\\frac{-4}{2(x+1)}\\ \\\frac{-2}{(x+1)}

6 0
2 years ago
Robert earned £ 8500. He got a bonus of 5% at the end of the year.
coldgirl [10]

Answer:

a) 8925, b)6872.25

Step-by-step explanation:

a) (8500)+(8500(5/100))=8925

b) (8925)-(8925(23/100))=6872.25

8 0
2 years ago
HELP!! 25 POINTS!!!
SpyIntel [72]

Answer:

D

Step-by-step explanation:

F(x) is an even degree. Because it opens up, it's leading coefficient is positive.

g(x) is an odd degree. Its leading coefficient is plus. A Minus one would go through quads 4 and 2, not 3 and 1

The last statement is the only true one.

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3 years ago
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