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labwork [276]
4 years ago
15

Amber charges $8.25 per hour to baby-sit. One Saturday she baby sat for 3.5 hours in the morning and 2.25 hours in the afternoon

. To the nearest cent how much did she earn on Saturday?
Mathematics
1 answer:
maks197457 [2]4 years ago
3 0

Answer:

$47.44

Step-by-step explanation:

The sum of hours worked= 3.5hrs + 2.25hrs= 5.75hrs

Money earnt= rate x no. hours= 5.75hrs * $8.25/hr = $47.4375

Round to nearest cent = $47.44

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This one is the one I need help with my final question
STatiana [176]

Answer:

vertex C could be at (6,0) or (2,8)

(I'm sorry if I'm wrong, but if not I hope this helps!)

Step-by-step explanation:

vertex C needs to be placed somewhere on the graph where it would form a right angle (and therefore a right-angled triangle as well). vertex C could be at (6,0) or (2,8). this is because at these two points vertex C will form a right angle, therefore making it a right-angled triangle.

7 0
3 years ago
What is the slope of the line that passes through the points (-2,-12) and (1,-3)?
Nookie1986 [14]

Answer:

3

Step-by-step explanation:

Change in Y/Change in X = Slope

8 0
4 years ago
Read 2 more answers
David’s bowling score is 5 less than 3 times Aaron’s score. The sum of their score is 215. Find the score of each student. Write
xenn [34]

Answer:

David's score= 160 ;  Aaron's score = 55

Step-by-step explanation:

let Aaron's score be 'x'.

so, David's score will be 3x - 5

(3x - 5) + x = 215

3x + x - 5 = 215

4x = 215 + 5

4x = 220

x = 220/4

x = 55

therefore, Aaron's score = 55

David's score is (3x - 5) = (3*55) - 5 = 165 - 5 = 160

8 0
3 years ago
Can you answer ASAP PLZ answer with work
luda_lava [24]

Answer:

$43.70

Step-by-step explanation:

90.50 - 4 = 87.50

87.50 ÷ 2 = $43.70

¯\_(ツ)_/¯

4 0
3 years ago
Find the first partial derivatives of the function f(x,y,z)=4xsin(y−z)
Amanda [17]

Answer:

f_x(x,y,z)=4\sin (y-z)

f_x(x,y,z)=4x\cos (y-z)

f_z(x,y,z)=-4x\cos (y-z)

Step-by-step explanation:

The given function is

f(x,y,z)=4x\sin (y-z)

We need to find first partial derivatives of the function.

Differentiate partially w.r.t. x and y, z are constants.

f_x(x,y,z)=4(1)\sin (y-z)

f_x(x,y,z)=4\sin (y-z)

Differentiate partially w.r.t. y and x, z are constants.

f_y(x,y,z)=4x\cos (y-z)\dfrac{\partial}{\partial y}(y-z)

f_y(x,y,z)=4x\cos (y-z)

Differentiate partially w.r.t. z and x, y are constants.

f_z(x,y,z)=4x\cos (y-z)\dfrac{\partial}{\partial z}(y-z)

f_z(x,y,z)=4x\cos (y-z)(-1)

f_z(x,y,z)=-4x\cos (y-z)

Therefore, the first partial derivatives of the function are f_x(x,y,z)=4\sin (y-z), f_x(x,y,z)=4x\cos (y-z)\text{ and }f_z(x,y,z)=-4x\cos (y-z).

4 0
4 years ago
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