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2 years ago

Kira exercises no less than 40 minutes per day. Use t to represent Kira's amount of exercise (in minutes per day).

1 answer:

4 0

Kira's time exercising every day can be represented as t ≥ 40 because she exercises for 40 minutes or more.

<h3>How can this situation be represented?</h3>

This situation can be represented with an inequality. An inequality is an expression that is used to represent variables. This type of expression uses symbols such as >, < or ≥ to represent different variable values.

<h3>What inequality is represented in this situation?</h3>

The expression is: t ≥ 40

The inequality represented in this situation implies that Kira exercises is equal or more time than 40 minutes every day.

Learn more about time in: brainly.com/question/26941752

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0.0162 as a fraction

irga5000 [103]

Answer:

81/4999

Step-by-step explanation:

0.0162 = 0.0162/1 = 0.162/10 = 1.62/100 = 16.2/1000 = 162/10000 = 81/4999

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3 years ago

The weight gain of beef steers were measured over a 140 day test period. the average daily gains (lb/day) of 10 steers on the sa

diamong [38]

Answer:

$\bar x = 3.545$

$Median = 3.435$

Step-by-step explanation:

Given

$x:3.89, 3.51, 3.97, 3.31, 3.21, 3.36, 3.67, 3.24, 3.27$

$10th: 4.02$

Solving (a): The mean

This is calculated as:

$\bar x = \frac{\sum x}{n}$

So, we have:

$\bar x = \frac{3.89 +3.51 +3.97 +3.31 +3.21 +3.36 +3.67 +3.24 +3.27+4.02}{10}$

$\bar x = \frac{35.45}{10}$

$\bar x = 3.545$

Solving (b): The median

First, we sort the data; as follows:

$3.21, 3.24, 3.27, 3.31, 3.36, 3.51, 3.67, 3.89, 3.97, 4.02$

$n = 10$

So, the median position is:

$Median = \frac{n + 1}{2}th$

$Median = \frac{10 + 1}{2}th$

$Median = \frac{11}{2}th$

$Median = 5.5th$

This means that the median is the average of the 5th and 6th item

$Median = \frac{3.36 + 3.51}{2}$

$Median = \frac{6.87}{2}$

$Median = 3.435$

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3 years ago

Match the following equations with the conic sections formed by them. 1. x 2 + y 2 - 4x + 6y - 5 = 0 hyperbola 2. x 2 - 6y = 0 c

REY [17]

<span>1. circle
2. parabola
3. ellipse
4. hyperbola
Let's look at each equation and see what they are:
1. x^2 + y^2 - 4x + 6y - 5 = 0
* There's a lot of crud in this equation, but the thing to note is that the x^2 and y^2 terms have the same scaling factor (which is 1). This should scream "circle" to you.

2. x^2 - 6y = 0
* Key thing to note here is that the y term isn't squared, but the x term is squared. This is a key sign that the equation is a parabola.

3. 4x^2 + 9y^2 = 1
* Here we have the sum of an x squared term and a y squared term. That kinda sounds like a circle, but there's those 2 coefficients scaling the results. And they're different. So we're looking for a closed curve that kinda looks like a circle, but it's stretched out a bit. And that's an ellipse.

4. 7x^2 - 9y^2 = 343
* Here we have a couple of squared terms for x and y. But we're not adding them together, we're subtracting. And that indicates a hyperbola.</span>

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The sum of two numbers is no more than 28. Let x represent the first number, and let y represent the second number. Which

Sphinxa [80]

The answer is the first one

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3 years ago

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3 years ago