2 years ago

The value of y varies directly with x. When y = 75, x = 1/2 What is the value of y when x = 18?

Mathematics

1 answer:

kondaur [170]2 years ago

3 0

Answer: 2700

Step-by-step explanation:

Y = KX

75 = K × ½

75 ÷ ½ = K

75/1 × 2/1 = K

K is 150

Y = 150 × 18

You might be interested in

Determine the radius and center of the circle with the following equation <br> x^2+y^2-12x+24y-10=6

PolarNik [594]

Answer:

Center: (6, -12)

Radius: 4

Step-by-step explanation:

<u>Complete the squares</u>

<u /> $x^2+y^2-12x+24y-10=6\\\\x^2-12x-10+y^2+24y=6\\\\x^2-12x-10+46+y^2+24y+144=6+46+144\\\\(x^2-12x+36)+(y^2+24y+144)=196\\\\(x-6)^2+(y+12)^2=196$

Comparing with the standard form equation $(x-h)^2+(y-k)^2=r^2$ , since $r^2=196$ , then the radius of the circle is $r=14$ . Also, the center of the circle would be $(h,k)\rightarrow(6,-12)$ .

8 0

2 years ago

Dominik [7]

Answer:

SQR = 60

Step-by-step explanation:

BISECTS both angles are equal

RQS = SQP

5x+10=7x-10

20=2x

10=x

-------------------

5(10)+10=50+10=60

60 + 60 =120

4 0

3 years ago

What is the slope of a line that passes through the points (4, - 3) and (- 2, 9)

oee [108]

Answer:

-2

Step-by-step explanation:

slope = y2 - y1 / x2 - x1

= 9 - (-3) / -2 -4

= 12 / -6

= -2

3 0

2 years ago

If you know the y-intercept of a line what else do you need to write it equal

andreev551 [17]

Answer: do you mean, “if you have the y-int, what else do you need to write an equation?”

If that’s what you mean then you need the slope

Step-by-step explanation:

4 0

3 years ago

What is true about the complex number -5 - 5i?

Svetlanka [38]

Answer:

B: quadrant 3

D: 5sqrt2

Step-by-step explanation:

7 0

3 years ago