Solve for k, the constant of variation, in a joint variation problem where y = 520, x = 5, and z = 6.5

Please help ! Will mark brainliest!

kow [346]

1/2^3 would be the answer!

Hope this helps!

3 0

4 years ago

What two values of x are roots of the polynomial below

Anarel [89]

Both A and B will be answers to the solution.

Since you already have the equation set and equal to 0, you can find the roots by first getting your a, b, and c values for the quadratic equation.

a = 1 (number attached to the x^2)
b = -3 (number attached to the x)
c = 5 (number not attached to a variable)

Then we can use these values in the quadratic equation.

$\frac{-b +/- \sqrt{ b^{2} -4ac } }{2a}$

$\frac{3 +/- \sqrt{ -3^{2} -4(1)(5) } }{2(1)}$

$\frac{3 +/- \sqrt{-11 } }{2}$

6 0

3 years ago

Haydin chooses a jersey at random and then replaces it. He then selects a second jersey at random. What is the probability that

Elena L [17]

<em>Question:</em>

<em>Haydin chooses a jersey at random and then replaces it. He then selects a second jersey at random. What is the probability that Haydin selects a striped jersey both times. 2 are striped,5 are colored and 3 are white.</em>

Answer:

$Probability = 0.04$

Step-by-step explanation:

Given

$Striped = 2$

$Colored = 5$

$White = 3$

Required

Determine the probability that both selections are stripped

This is calculated as:

$Probability = P(Stripped) * P(Stripped)$

$Probability = \frac{n(Stripped)}{Total} * \frac{n(Stripped)}{Total}$

$Probability = \frac{2}{2 + 5 + 3}* \frac{2}{2 + 5 + 3}$

$Probability = \frac{2}{10}* \frac{2}{10}$

$Probability = \frac{4}{100}$

$Probability = 0.04$

3 0

3 years ago

Read 2 more answers

there are only blue counters, red counters and yellow counters in a bag. There are twice as many blue counters as yellow counter

Vanyuwa [196]

The ratio of blue counters to red counters to yellow counters will be given as 3: 2: 6.

<h3>What are ratio and proportion?</h3>

A ratio is a collection of ordered integers a and b represented as a/b, with b never equaling zero. A proportionate expression is one in which two items are equal.

There are only blue (B) counters, red (R) counters, and yellow (Y) counters in the bag.

There are twice as many blue counters as yellow counters.

There are three times as many red counters as yellow counters.

Then the relationship will be

Y = 2B ..1

Y = 3R ..2

From equations 1 and 2, we have

2B = Y = 3R

B/3 = Y/6 = R/2

Then the ratio of blue counters to red counters to yellow counters will be

B:R:Y::3:2:6

More about the ratio and the proportion link is given below.

brainly.com/question/14335762

#SPJ1

3 0

2 years ago

Sine and Cosine of any angle will always give a number less than 1. Why? (*HINT* Think about fractions and how Sine is oppositeh

MatroZZZ [7]

Answer:

Hope this helped!

Step-by-step explanation:

The most easiest way to understand this is by considering a simple right angled triangle:-

For any right angled triangle

sin(theta)=perpendicular/hypotenuse

cos(theta)=base/hypotenuse

Since hypotenuse is the largest side so neither sin nor cos could be larger than 1.

8 0

3 years ago