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3 years ago

7

Which equation of a circle represents the graph?

1 answer:

creativ13 [48]3 years ago

5 0

Equation of the circle centered on the origin is x²+y²=r²
r=5

x²+y²=5²
x² + y² = 25 ← answer

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A farm has a small water tank with a diameter of 10 feet and a height of 4 feet. What is the lateral surface area of the water t

svp [43]

The Shape in this question is a cylinder
And the formula for finding the L.S.A of a cylinder is 2*pie*r*h
From the question, we are given the diameter so to get the radius we will divide the value for diameter by 2
D = 10/2
=5
Now, 2*3.14*5*4
L.S.A =125.6

5 0

3 years ago

Read 2 more answers

Please help I have been stuck for a while

elixir [45]

Answer:

$3\sqrt{2}$

Step-by-step explanation:

3^2+3^2=18

root 18 = 3root2

7 0

3 years ago

Solve attachment EASY

ANTONII [103]

Answer:

$x=\frac{-3d-9}{k-d}$

Step-by-step explanation:

Step 1: Write out equation

d(-3 + x) = kx + 9

Step 2: Distribute

-3d + dx = kx + 9

Step 3: Subtract dx on both sides

-3d = kx - dx + 9

Step 4: Subtract 9 on both sides

-3d - 9 = kx - dx

Step 5: Factor

-3d - 9 = x(k - d)

Step 6: Divide both sides by k - d

$x=\frac{-3d-9}{k-d}$

6 0

3 years ago

Calculate the value of x.

mars1129 [50]

Answer:

49.2°

Step-by-step explanation:

To solve for x you'll need to find the cosine of x°.

To find the cosine you will need to divide the adjacent side to it by the hypotenuse.

cos x°= $\frac{17}{26}$

Using a calculator to solve you'll get that x ≈ 49.2°

3 0

3 years ago

Y=3x+4 , 9x-3y=-6 do the lines intersect or are they parallel or are they perpendicular

Angelina_Jolie [31]

Answer:

Lines are parallel.

Step-by-step explanation:

The given lines are $y=3x+4,\ 9x-3y=6$

Rearrange the equation in the slope intercept form that is $y=mx+b$ where $m$ is the slope.

<em>First Line:</em>

$y=3x+4$

compare it with $y=mx+b$

slope ( $m_{1}$ ) of first line $=3$

<em>Second Line:</em>

$9x-3y=6\\9x-6=3y\\3y=9x-6$

divide both by $3$

$y=3x-3$

compare it with $y=mx+b$

slope $(m_{2})$ of second line $=3$

Since slope of two lines are equal

$m_{1}=m_{2}=3$

hence these lines are parallel.

7 0

3 years ago