2 years ago

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Mathematics

1 answer:

kompoz [17]2 years ago

7 0

plz write your proper question

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Find x - 3y if x = 3 and y= -2

Feliz [49]

X-3y, x=3, y=-2
(3)-3(-2)
(3)+(3*2)
3+6=9

4 0

3 years ago

A fountain, 3 ft in diameter, sits in the center os a circular duck pond. The pond measures 3 ft from the fountain to its edge.

umka2103 [35]

Answer:

$56.55\ ft^2$

Step-by-step explanation:

We know that the diameter of the fountain is 3 feet and that it is in the center of the pond.

We know that the area of a circumference is:

$\pi(r)^2$

where r is the radius of the circumference.

further

d = 2r

Where d is the diameter of the circumference.

Then the radius $r_1$ of the source is 1.5 ft.

The radius $r_2$ of the pond is 1.5 + 3 = 4.5 ft

Finally the area of the pond is equal to the area of the ring that is shown in the image

$A = \pi(r_2)^2 - \pi (r_1)^2\\\\A = \pi(4.5)^2 - \pi(1.5)^2\\\\A = \pi(4.5^2 - 1.5^2)\\\\A = 18\pi = 56.55\ ft^2$

5 0

3 years ago

Multiply <br> 0.105 x 0.7=

Keith_Richards [23]

Answer:

0.0735

Step-by-step explanation:

0.105×0.7=0.0735

8 0

3 years ago

Read 2 more answers

Write 2x+y=17 in slope-intercept form

Harlamova29_29 [7]

Answer:

y=-2x+17

Step-by-step explanation:

6 0

2 years ago

Help please if you can

enot [183]

Answer: mutiply x by itself to get y

Step-by-step explanation:

6 0

3 years ago