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Marrrta [24]
2 years ago
9

Plz help me with this

Mathematics
1 answer:
Agata [3.3K]2 years ago
3 0

Answer:

It's the first option.

Step-by-step explanation:

y = cos x transformed  to cos (x - π/2) moves  the graph  π/2 units to the right.

Multiplying by 3 to give 3 cos(x -  π/2)  stretches the graph 3 units parallel to the y-axis and adding 3 to this moves the graph up 3 units.

So the required equation is y = 3(cos x -  π/2) + 3.

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Saqui buys streamers for $0.09.
Westkost [7]

Answer:

27

Step-by-step explanation:

0.09 x 300 = 27

It will cost 27 dollars for 300 centimeteres of streamers.

Have an amazzing day!

Please rate!

7 0
2 years ago
Read 2 more answers
Solve <br> y= -2x + 9<br><br> y= 4x -3
wlad13 [49]

y = -2x + 9

y = 4x - 3

y is isolated in both equations, thus you may set the expressions (-2x + 9) and (4x - 3) equal to each other and solve for x.

-2x + 9 = 4x - 3

Subtract 9 from both sides.

-2x + 9 - 9 = 4x - 3 - 9

-2x = 4x - 12

Subtract 4x from both sides.

-2x - 4x = 4x - 12 - 4x

-6x = -12

Divide both sides by -6.

-6x/-6 = -12/-6

x = 2

Substitute 2 for x into one of the original equations to find y.

y = 4x - 3 (given)

y = 4(2) - 3 (substitute)

y = 8 - 3 (multiply)

y = 5 (subtract)

Plug x- and y-values into original equations to check work.

5 = -2(2) + 9

5 = - 4 + 9

5 = 5


5 = 4(2) - 3

5 = 8 - 3

5 = 5

Answer:

x = 2 and y = 5; (2, 5).

5 0
3 years ago
Read 2 more answers
How many square feet of outdoor carpet will we need for this hole? HELP PLS!!!
Otrada [13]

Answer: The answer is 39 square feet.

Step-by-step explanation:

By saying square feet it's indicated that you mean the area of this irregular figure.

To do this you can break apart the shape into two pieces.

The first 11 x 3 rectangle then the 2 x 3 rectangle.

Next, you can find the area to be 33 square feet and 6 square feet. respectively, afterward, you add the areas together to find the area of the figure, which is 39 square feet.

7 0
2 years ago
If you are asked to find the 85th​ percentile, you are being asked to find​ _____
ss7ja [257]
If you are asked to find the 85th percentile, you are being asked to find a data value associated with an area of 0.85 to its left. 
Percentile is a measure used in statistics indicating the value below which a given percentage of observations in a group of observations fall. For example, the 30 th percentile is the value below which 20% of the observations may be found.
3 0
2 years ago
What is the area of the figure use pi
Inessa05 [86]
Area of triangle = 1/2 (6)(5) = 15
Area of semicircle = 1/2(3.14)(3^2) = 14.13

Area of figure = 15 + 14.13 = 29.13

Answer
29.13 square units
6 0
3 years ago
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