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2 years ago

Helppppp meeeee!!!!!!!!!!!

Mathematics

1 answer:

DochEvi [55]2 years ago

6 0

Answer and Step-by-step explanation:

When it says (f + g)(x), it means that it wants you to add the functions together.

So, let's add them.

$(2x^2 + 6x - 4) + (5x^3 -6x^2-3)\\\\\\5x^3 - 4x^2 + 6x - 7\\\\\\\\\\\\\\5x^3 - 4x^2 + 6x - 7$ is the answer. (Answer choice B.)

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

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Of 2x – 3y + 5 – (x – 3y) = 11 – 2x, what is the value of x?

Novay_Z [31]

Answer:

Step-by-step explanation:

2x – 3y + 5 – (x – 3y) = 11 – 2x . . . . . given

2x -3y +5 -x +3y = 11 -2x . . . . . . . . . . .eliminate parentheses

x +5 = 11 -2x . . . . . . . . . . . . . . . . . . . . . collect terms

3x = 6 . . . . . . . . . . . . . . . . . . . . . . . . . . add 2x-5

x = 2 . . . . . . . . divide by 3

The value of x is 2.

4 0

2 years ago

Rock musician Donny West is paid 15% on his CD sales and tour video sales. Last year, he sold one million CDs and 550,000 videos

Likurg_2 [28]

Answer:

Total amount of CD sales was $750,000.

Step-by-step explanation:

one million CDs were sold at $5/CD.

1,000,000 × $5 = $5,000,000

Donny gets 15% of the sales, so he'll receive the amount of CD sales as:

$5,000,000 × 15/100 = $50,000 × 15 = $750,000.

Optional:

If you add both of the multiplied values, 1,000,000 × 5 + 550,000 × 6

= $5,000,000 + $3,300,000

= $8,300,000

so, 15% of it would be $1,245,000.

if you calculate both separately and then add them, you'll still get $1,245,000.

I hope this'll help.

3 0

3 years ago

For health reasons Sarah needs to limit her fat intake to 25% of the total calories consumed in a day if the fat intake is 550 c

juin [17]

25% of x calories is 550 calories.

25% * x = 550

0.25x = 550

Divide both sides by 0.25

x = 2200

Answer: 2200 calories

4 0

3 years ago

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What is the maximum height the cricket reaches?

enyata [817]

Answer:

Step-by-step explanation:

we have that

h(t) = –16t² + 14t

using a graph tool

see the attached figure

the cricket’s hang time is the difference between point (0,0) and (0.875,0)

(0.875-0)=0.875 sec

the answer is 0.875 sec

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2 years ago

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John can send up to 250messages each month. So far he has sent 141 messages this month let t represent the number of messages he

docker41 [41]

$141+t \leq 250$

The phrase "up to" means less than or equal to since John cannot send more than 250 messages.

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3 years ago

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