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2 years ago

Hi I need help with this question please!!! I don’t understand it :/

Mathematics

2 answers:

Paladinen [302]2 years ago

7 0

The above answer is correct. Great job

elena-s [515]2 years ago

3 0

Answer:

- 22.5

Step-by-step explanation:

Substitute x = 3 into f(x) and x = 16 into h(x) , then

$\frac{1}{2}$ g(3) - h(16)

= $\frac{1}{2}$ × - 3(3)² - (2 $\sqrt{16}$ + 1)

= $\frac{1}{2}$ × - 3(9) - (2(4) + 1)

= $\frac{1}{2}$ × - 27 - (8 + 1)

= - 13.5 - 9

= - 22.5

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five people, each working 8 hours a day, can assemble 400 toys in a five day work week. what is the average number of toys assem

vladimir1956 [14]

The question asks for the rate of toys per hour.

So we shall divide the total toys assembled by the total hours.

Its a five day week.

The number of hours allotted per day are 8.

So total allotted during the week are 8 × 5 = 40 hours.

Number of toys made during the week are 400.

Hence the number of toys assembled per hour per person

= number of toys / number of hours

= 400 / 40

= 10 toys per hour per person.

The average number of toys assembled per hour per person is 10.

8 0

3 years ago

Read 2 more answers

Students in the student council are selling candy bars. They earn $0.75 on each candy bar they sell. Their goal is to earn at le

mina [271]

Answer:

427 candy bars.

Step-by-step explanation:

320 ÷ 0.75 = 426.66 (Rounds up to 427)

7 0

3 years ago

What is the difference, in hours and minutes, between these times?<br>a)11:25 and 14:10

lutik1710 [3]

Answer:

14:10 is 24 hours clock which only come in after noon that is 12

11:25 is a normal clock with remains normal before 12:00

8 0

2 years ago

The monthly profit for a small company that makes long-sleeve T-shirts depends on the price per shirt. If the price is too high,

max2010maxim [7]

Answer:

This was in 2019 hope they solved it..

Step-by-step explanation:

5 0

3 years ago

F(x)=-9x^2-2x and g(x)=3x^2+6x-9, find (f-g)(x) and (f-g)(-4)

Sergio039 [100]

Answer:

$(f-g)(x) = -12x^{2} - 8x + 9$

(f-g)(-4) = -151

Step-by-step explanation:

To find f-g(x) we subtract the common terms. So

$f(x) = -9x^{2} - 2x$

$g(x) = 3x^{2} + 6x - 9$

(f-g)(x)

$(f-g)(x) = f(x) - g(x) = -9x^{2} - 2x - (3x^{2} + 6x - 9) = -9x^{2} - 2x - 3x^{2} - 6x + 9 = (-9 - 3)x^{2} + (-2 - 6)x + 9 = -12x^{2} - 8x + 9$

(f-g)(-4)

$(f-g)(x) = -12x^{2} - 8x + 9$

We replace x by -4

$(f-g)(-4) = -12(-4)^{2} - 8(4) + 9= -151$

(f-g)(-4) = -151

5 0

3 years ago