2 years ago

Find the surface area of a water tower that is 40 feet tall and 20 feet across the base

Mathematics

1 answer:

Otrada [13]2 years ago

8 0

Answer:

800 ft (Please brainlist me)

Step-by-step explanation:

A = B*W

40 * 20 = 800

You might be interested in

Solve using elimination. 2x + y = 5 x - 3y = 6

Umnica [9.8K]

Answer:

then substitute y in eq 1 to get x

hope this helped you

Please mark as the brainliest (ㆁωㆁ)

3 0

3 years ago

Find the equation of locus of a point which moves such that its distance from (0,2) is one third distance from (-2,3). ( I WILL

scoray [572]

Answer:

$8(x^2+y^2)-4x-30y+23=0$

Step-by-step explanation:

Distance formula

$\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Let P(x, y) = any point on the locus

Let A = (0, 2)

Let B = (-2, 3)

If a point moves such that its distance from (0, 2) is one third distance from (-2, 3):

$PA=\dfrac{1}{3}PB$

Therefore, using the distance formula:

$\implies \sqrt{(x-0)^2+(y-2)^2}=\dfrac{1}{3}\sqrt{(x-(-2))^2+(y-3)^2}$

Square both sides:

$\implies x^2+(y-2)^2=\dfrac{1}{9}[(x+2)^2+(y-3)^2]$

$\implies x^2+y^2-4y+4=\dfrac{1}{9}(x^2+4x+4+y^2-6y+9)$

Multiply both sides by 9:

$\implies 9x^2+9y^2-36y+36=x^2+4x+4+y^2-6y+9$

$\implies 8x^2+8y^2-4x-30y+23=0$

$\implies 8(x^2+y^2)-4x-30y+23=0$

3 0

2 years ago

5 times 3/4 in a mixed number

Arte-miy333 [17]

5 x 3/4 = 15/4

15/4 = 3 3/4

6 0

3 years ago

Brandy wants to buy a digital camera that costs $300. Suppose she saves $15 each week. In how many weeks will she have enough mo

Sidana [21]

Answer:

20 week

Step-by-step explanation:

4 0

3 years ago

3х - 2y = 14 5х + бу =42 What’s this on a graph?

Gelneren [198K]

Answer:

Step-by-step explanation:

9x - 6y = 42

5x + 6y = 42

14x = 84

x = 6

30 + 6y = 42

6y = 12

y = 2

(6, 2)

8 0

3 years ago