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2 years ago

The equation y=1/9x relates proportional quatities x and y. what is the value of x when y is 4?

Mathematics

1 answer:

drek231 [11]2 years ago

5 0

An boy got no head

Step-by-step explanation:

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What is the vertex of y=-3x^2 4?

Ket [755]

The answer to the question is y=-24x

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2 years ago

Identify the center and radius of the circle given by the equation (x+2)^2+(y-5)^2=16

Andreyy89

Answer:

Center=(0,2) Radius=(4)

Step-by-step explanation:

give me 5 star and thank me plz

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3 years ago

A curve has equation<br> y = x²(x - 2)<br> Work out the gradient of the curve at the point (3,9).

slava [35]

Answer:

y = x^2 (x - 2) = x^3 - 2 x^2

dy/dx = 3 x^2 - 4 x

At x = 3 dy/dx = 3 * 9 - 4 * 3 = 15 The slope (gradient) of the curve

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1 year ago

A single die is rolled twice. Find the probability of rolling an even number the first time and a number greater than 3 the seco

IceJOKER [234]

Events

• A: an even number is rolled in the first time

• B: a number greater than 3 is rolled the second time

The probability of rolling an even number is:

$\begin{gathered} P(A)=\frac{\text{ number of favorable outcomes}}{\text{ total possible outcomes}} \\ P(A)=\frac{3}{6} \\ P(A)=\frac{1}{2} \end{gathered}$

The probability of rolling a number greater than 3 is:

$\begin{gathered} P(B)=\frac{\text{ number of favorable outcomes}}{\text{ total possible outcomes}} \\ P(B)=\frac{3}{6} \\ P(B)=\frac{1}{2} \end{gathered}$

Events A and B are independent, then the probability of one happening after the other is:

$\begin{gathered} \text{ P(A and B) = }P(A)\cdot P(B) \\ \text{ Substituting with the values previously found:} \\ \text{ P(A and B) = }\frac{1}{2}\cdot\frac{1}{2} \\ \text{ P(A and B) = }\frac{1}{4} \end{gathered}$

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10 months ago

Julia worked on her chores from 3:15 until 4:00 how long did julia work

Dafna1 [17]

45 minutes i m sure all you do is count up or subtract 60 from 15

7 0

2 years ago

Read 2 more answers