Answer:
-87
Step-by-step explanation:
So, first to find <em>x</em> you need to subtract 121 from 180. You do this because both the angle which measures 121 degrees and <em>x</em> lie on the same line, and since a line has an angle measure of 180, you do 180-121 to find <em>x</em>. The same thing can be done for <em>y</em>. Since the angle measure of 34 degrees and y lie on the same line you can calculate 180-34 to get <em>y. </em>So, let's do that.
180-121=x
59=x
180-34=y
146=y
Once you've done that you can easily subtract the two and get your answer.
x-y
substitute the answer for the variables and get
59-146
and then your answer is
-87
Answer:
Step-by-step explanation:
All vertices meet at right angles, so sealing off these two rectangles will give you this:
![\displaystyle [2][4] + [4][8] = 8 + 32 = 40; 40mm.^2 \\ 4 + 6 + 2 + 4 + 8 + 8 = 32; 32mm.](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5B2%5D%5B4%5D%20%2B%20%5B4%5D%5B8%5D%20%3D%208%20%2B%2032%20%3D%2040%3B%2040mm.%5E2%20%5C%5C%204%20%2B%206%20%2B%202%20%2B%204%20%2B%208%20%2B%208%20%3D%2032%3B%2032mm.)
* The missing sides are 4 and 6.
I am joyous to assist you anytime.
Answer:
Step-by-step explanation:
Chelsea is making a kite in the shape of a triangle. To determine if the triangle is a right triangle, Chelsea completed the following steps.
Step 1:
Find the side lengths of the triangle: 30 inches, 24 inches, 18 inches.
Step 2:
Substitute the values into the Pythagorean theorem: 18 squared + 24 squared = 30 squared.
Step 3:
Combine like terms: (18 + 24) squared = 30 squared.
Step 4:
Evaluate each side: 1764 not-equals 900.
Chelsea says the triangle is not a right triangle. Which best describes the accuracy of her explanation?
The triangle is actually a right triangle. In step 2, Chelsea incorrectly substituted the values into the Pythagorean theorem.
The triangle is not a right triangle, but in step 2 Chelsea incorrectly substituted the values into the Pythagorean theorem.
The triangle is actually a right triangle. In step 3, Chelsea incorrectly rewrote the expression on the left side of the equation.
The triangle is not a right triangle, but in step 3, Chelsea incorrectly rewrote the expression on the left side of the equation.
Answer:
C. (8.5, 14.72)
Step-by-step explanation:
You can translate the coordinates using ...
(x, y) = (r·cos(θ), r·sin(θ))
Filling in the given polar coordinates, (r, θ) = (17, 60°), we have ...
(x, y) = (17·cos(60°), 17·sin(60°)
(x, y) = (8.5, 14.72)
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If you sketch the vector, you realize that the short side of the triangle (the x-coordinate) is half the length of the hypotenuse (17). This is because you recognize the side-length relationships in a 30°-60°-90° triangle. Only one answer choice shows that value.
sometimes
Step-by-step explanation:
irrational numbers are numbers that cannot be expressed as a quotient of 2 numbers
rational numbers are numbers that can be expressed as a fraction.
for example let's take these examples of iirational numbers:
the 1st product <u>(</u><u>2</u><u>)</u><u> </u><u>can</u><u> </u><u>be</u><u> </u><u>written</u><u> </u><u>as</u><u> </u><u>a</u><u> </u><u>fraction</u><u> </u><u>but</u><u> </u><u>the</u><u> </u><u>second</u><u> </u><u>one</u><u> </u><u>cannot</u><u> </u><u>be</u><u> </u><u>written</u><u> </u><u>as</u><u> </u><u>a</u><u> </u><u>fraction</u>
