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3 years ago

I’m haveing a hard time explaining why D is the right answer please help

Mathematics

1 answer:

Anon25 [30]3 years ago

3 0

Because d actually collects data about what the people want.

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Mr. johnson was paid $190 for a job that required 40 hours of work. at this rate, how much should he be paid for a job requiring

yarga [219]

190 / 40 = $4.75 an hour
4.75 • 60 = 285

At the same rate, he should be paid $285 for 60 hours of work

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3 years ago

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The object above is symmetrical through Y = 17 inches Z = 18 inches, and H = 11 inches, what is the area of the object ?

oksian1 [2.3K]

Answer:

let me try

a= 1/2(l×w)

=1/2*17*18

=1/2(306)

A=153

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2 years ago

One of the factors of 4x^2-9 is (1)x+3 (2)2x+3 (3)4x-3 (4)x-3

slava [35]

Answer:

$2x+3$

Step-by-step explanation:

$4x^2-9=(2x)^2 -3^2=(2x-3)(2x+3)$

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2 years ago

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The altitude of a triangle is increasing at a rate of 1 cm/min while the area of the triangle is increasing at a rate of 2 cm^2/

VARVARA [1.3K]

Answer:

The base is decreasing at 2 cm/min.

Step-by-step explanation:

The area (A) of a triangle is given by:

$A = \frac{1}{2}bh$ (1)

Where:

b: is the base

h: is the altitude = 10 cm

If we take the derivative of equation (1) as a function of time we have:

$\frac{dA}{dt} = \frac{1}{2}(\frac{db}{dt}h + \frac{dh}{dt}b)$

We can find the base by solving equation (1) for b:

$b = \frac{2A}{h} = \frac{2*120 cm^{2}}{10 cm} = 24 cm$

Now, having that dh/dt = 1 cm/min, dA/dt = 2 cm²/min we can find db/dt:

$2 cm^{2}/min = \frac{1}{2}(\frac{db}{dt}*10 cm + 1 cm/min*24 cm)$

$\frac{db}{dt} = \frac{2*2 cm^{2}/min - 1 cm/min*24 cm}{10 cm} = -2 cm/min$

Therefore, the base is decreasing at 2 cm/min.

I hope it helps you!

7 0

2 years ago

Employees at Happy Burger must place a special toy in at least 30% of the Burger Buddy kid's meals sold per day. The table shows

irga5000 [103]

On Monday the percentage was approx. 27% so they did not meet the goal
On Tuesday the percentage was approx. 28% so they did not meet the goal
On Wednesday the percentage was approx. 37% so they did meet the goal
On Thursday the percentage was approx. 37% so they did meet the goal
On Friday the percentage was approx. 34% so they did meet the goal

The employees met the goal 3 times within that week :)

6 0

2 years ago