Answer:
8.6
Step-by-step explanation:
Sine is opposite/hypotenuse so you have
Sin20° = a/25.
To get a you have to multiply 25 to both sides of the equation to get
25 Sin20° = a
Find Sin20° on a calculator and you'll get approximately 0.3420
Then you multiply Sin20° by 25 and you'll get approximately 8.5505 which rounds to 8.6 which is a.
Answer:
A cross section is the shape we get when cutting straight through an object. The cross section of this object is a triangle. It is like a view into the inside of something made by cutting through it. This is a cross-section of a piece of celery.
1. - B) <span>the diameter is 16
2. - C.) </span><span>diameter is 8
3. - D.) </span><span>a circle's circumference divided by its diameter.
4. - C.) </span><span>the radius.
5. - A.) 9.42
6. - D.) </span><span>16 inches or less.
7. - A.) </span><span>π
8. - B.) </span><span>2 (3.14) π
9. - A.) 8
10. - B.) Perimeter
Hope this helps!</span>
<h3>
Answer: Choice D) 22.5</h3>
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Explanation:
x = length of BC
AC = AB+BC
AC = 6 + x
CE = CD+DE
CE = 22+8
CE = 30
Triangles ACE and BCD are similar triangles (can be proven by the AA similarity theorem due to the fact that AE || BD)
Therefore the corresponding sides are proportional letting us set up the proportion below
AC/BC = CE/CD
(6+x)/x = 30/22 .... substitution
22(6+x) = 30x ... cross multiply
132+22x = 30x
132 = 30x-22x ..... subtract 22x from both sides
132 = 8x
8x = 132
x = 132/8 .... divide both sides by 8
x = 16.5
Now use this to find the length of AC
AC = 6+x
AC = 6+16.5
AC = 22.5
Answer:
hey there mate, i'll try and explain it to you. the question is asking what number is equivalent to to 18-30. the answer is -12. so therefore, the answer is C.
tldr: answer is C causw both question and answer is -12