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ANTONII [103]
2 years ago
14

Need Help With Math Questions!!! Will reward Brainliest!!

Mathematics
1 answer:
Licemer1 [7]2 years ago
6 0
HL Theorem would prove these two triangles are congruent.
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-9y + 4x - 20 = 0<br> -7y + 16 - 80
ioda

Answer:

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
What is sin -1 (1/2) if the terminal side of 0 is located in quadrant 1
Lady_Fox [76]

Answer:

sin^-1 (1/2) = 30°

Step-by-step explanation:

* Lets explain how to find the trigonometry functions from the unit circle

- The unit circle is the circle whose radius is 1 unit

- It intersects the four axes at:

# Positive part of x-axis at (1 , 0) and negative part at (-1 , 0)

# Positive part of y-axis at (0 , 1) and negative part at (0 , -1)

- The terminal of any angle intersect it at point (x , y) where x² + y² = 1

- If The angle between the terminal side and the x-axis is Ф , then

# The adjacent side of Ф = x

# The opposite side of the angle Ф = y

- In the problem the terminal side lies in the first quadrant

∴ all the trigonometry functions are positive

∵ sin Ф = opposite/hypotenuse

∵ The opposite = 1/2 and the hypotenuse is the terminal side = 1

∴ sin Ф = 1/2 ÷ 1 = 1/2

- To find Ф use the inverse function sin^-1 Ф

∵ sin Ф = 1/2

∴ Ф = sin^-1 (1/2)

∴ Ф = 30°

* sin^-1 (1/2) = 30°

6 0
2 years ago
Free points insta: (jqyneii) giving Brainliest to the first person :D make sure to get outside its good for you ily &lt;3
kiruha [24]

Answer:

THANKS FOR THE POINTS

Step-by-step explanation:

3 0
2 years ago
Is all whole numbers are integers.
Vaselesa [24]
All whole numbers are integers, so since 0 is a whole number, 0 is also an integer.
5 0
2 years ago
Matt started doing extra chores around the house and his allowance changed from $30 per week to $40 per week. What is the percen
slega [8]

Answer:

33.3%

Step-by-step explanation:

Let's say the percent change is x%. Then the equation is:

30 + x% * 30 = 40

Subtract 30 from both sides:

x% * 30 = 10

Divide by 30:

x% = 10/30 = 1/3

Remember that % simply means "out of 100", so:

x/100 = 1/3

Multiply both sides by 100:

x = (1/3) * 100 = 33.3%

3 0
3 years ago
Read 2 more answers
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