3 years ago

If f(x) = 3x – 2 and g(x) = 2x + 1, find (f + g)(x).

Mathematics

1 answer:

sergey [27]3 years ago

7 0

The answer is 5x^2-x because you have to plug in and then distribute.

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Jonael dropped a sandbag from a hot air balloon at a target that is 250 meters below the balloon. At this moment, the sandbag is

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out of 420 students enrolled in a recreational soccer program, 40% are sixth graders. How many students in the program are sixth

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0.4(420) = 4(420)/10

(0.4 is essentially 4/10)

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The 5 players on the basketball team have a mean height of 141 cm. The heights of 4 of the players are listed below. The height

joja [24]

$\frac{137+150+144+149+x}{5} =141$

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Therefore, the man is shorter than 141 centimeters.

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3 years ago

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ipn [44]

Answer:They were nations at war that shared a common religion.

Step-by-step explanation:

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3 years ago

A scientist mixes water (containing no salt) with a solution that contains 35% salt. She wants to obtain 105 ounces of a mixture

Naya [18.7K]

Answer:

60 oz of water to add

45 oz of 35% salt solution should be used

Step-by-step explanation:

Let x = amt no. ounces in the first solution

and 105 - x = amt no. of ounces in the second solution

Ist solution contains 0% salt

2nd solution contains .35(105 - x) salt

.15(105= amt of salt in mix

So.

amt of salt in 1st solution + amt of salt in 2nd solution = amt of salt in the mix

0 + .35(105 - x) = .15(105)

Let's get rid of the fractions by multipying thru the equation by 100

35(105 - x) = 15(105)

3675 - 35x = 1575

-35x = -2100

x = 60 oz of water to add

105 - 60 = 45 oz of 35% salt solution should be used

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3 years ago