Hey there! Every mile is 1760 yards, so multiply that by 4
1760 x 4 = 7040, so she walks 7040 yards.
Hope this helped!
Answer: False
Step-by-step explanation:
Triangle is a polygon with 3 sides. The formula for calculating the sum of angle in a polygon is given as :

where n is the number of sides , so to calculate the sum of angles in a triangle we have :

= 1 x 180
= 180
Therefore : The triangle angle sum property states that the measures of the 3 angles of any triangle must add to 180 degrees.
The measure of the value of x is 70.52 degrees.
Given
A 12-foot ladder is placed 4 feet away from a house as shown.
According to the manufacturer, if the angle the ladder forms with the ground, x, is between 70° and 75°, then it meets safety standards.
<h3>What is cos angle?</h3>
The cos theta is defined as the ratio of the side adjacent to the angle and the hypotenuse.
The following formula is used to calculate the value of x;

Where the side adjacent to angle = 4 and hypotenuse is 12.
Substitute all the values in the formula;

Hence, the measure of the value of x is 70.52 degrees.
To know more about Trigonometric ratios click the link given below.
brainly.com/question/3630461
2x + 40 = 60 (Subtract 40 from both sides)
- 40 - 40
--------------------------------
2x = 20 (Divide both sides)
2x/2 = 20/2
x = 10 (This is your final answer)
The question should be accompanied with choices, below are the choices:
a) sqrt(1-x^2)
<span>b) x/sqrt(1-x^2) </span>
<span>c) sqrt(1-x^2)/x </span>
<span>D) 1/sqrt(1-x^2)
</span>
The answer should be <span>c) sqrt(1-x^2)/x .
</span><span>cos u = sqrt (1 - sin^2 u) = sqrt(1 - x^2), and cot u = cos u / sin u.</span>