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-Dominant- [34]
3 years ago
9

On Saturday, Nicole earns no more than $55 at her job. On Sunday, she earns at least $40. Which of these inequalities represent

h, the amount Nicole earns on Saturday and k, the amount she earns on Sunday?
A. h 40
B. h ≤ 55 and k ≥ 40
C. h > 55 and k < 40
D. h ≥ 55 and k ≤ 40
Mathematics
2 answers:
svetoff [14.1K]3 years ago
8 0

Answer:

B

Step-by-step explanation:

makkiz [27]3 years ago
7 0

Answer:

B

Step-by-step explanation:

use your head

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What is the equation of the line, in point slope form, that passes through the points (4,8) and (2,-2)
Solnce55 [7]

Answer:

Step-by-step explanation:

1) point slope form is:

y-y1=m(x-x1)

y1=8

x1=4

m=(slope)

to find m:  y2-y1/x2-x1

hence

-2-8/2-4=-10/-2=5

m=5:

y-8=5(x+4)

8 0
4 years ago
. A certain coin is a circle with diameter 18 mm. What is the exact area of either face of the coin in terms of p?
vitfil [10]

Answer:

r =\frac{D}{2}=\frac{18mm}{2}= 9mm

The area is given by:

A= \pi r^2

And replacing we got:

A=\pi (9mm)^2 =81\pi mm^2

So then we can conclude that the area of the coin is 81\pi mm^2

Step-by-step explanation:

For this case we know that we have a coin with a diamter of D =18mm, and by definition the radius is given by:

r =\frac{D}{2}=\frac{18mm}{2}= 9mm

The area is given by:

A= \pi r^2

And replacing we got:

A=\pi (9mm)^2 =81\pi mm^2

So then we can conclude that the area of the coin is 81\pi mm^2

4 0
3 years ago
Could someone explain this to me?
Ilya [14]
This is a simple differentiation problem. Let's start by taking the derivative of both sides (with respect to x):
5y^4\frac{dy}{dx}+6y^2x+6x^2y\frac{dy}{dx}+20x^3 = 0

Simplify:
\frac{dy}{dx} (5y^4+6x^2y) + 6y^2x+20x^3 = 0

Solve for dy/dx:
\frac{dy}{dx} = \frac{-6y^2x-20x^3}{5y^4+6x^2y}

Now, plug in the given points:
\frac{dy}{dx} = \frac{-6(2)^2(-1)-20(-1)^3}{5(2)^4+6(-1)^2(2)} = \frac{24+20}{80+12}

Further simplification gives:
\frac{dy}{dx}|_{(2,-1)} =\frac{44}{92} =  \frac{11}{23}

So, your answer is 11/23 or B.
7 0
4 years ago
What is thirty plus ten times five minus forty five divided by five
Zielflug [23.3K]
The answer would be 71
8 0
4 years ago
A snail moves 2.34 inches per minute. At that rate (speed), How many inches will it travel in 12 minutes?
Maksim231197 [3]

Answer:

28.08 is the answer

Step-by-step explanation:

7 0
2 years ago
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