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FrozenT [24]
3 years ago
15

Find the value of x if Sin80 = Cos( 90 -x)

Mathematics
1 answer:
natita [175]3 years ago
5 0

Answer:

80

Step-by-step explanation:

\sin(80)  =  \cos(10)  \\ 90 - x = 10 \\ x = 80

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Pls help me and thank ya!!
algol13

Answer:

Option 1

Step-by-step explanation:

Rational numbers do not have infinite decimals.

Option 1:

-5, 3/4 and √49 are all rational. Correct

√49 = 7

3/4 = 0.75

-5 = -5

Option 2:

1/4 = 0.25

5 = 5

√12 = 3.4641...

Incorrect

Option 3:

-1/2 = -0.5

-3 = -3

√8 = 2.82841...

Incorrect

Option 4:

1/7 = 0.142857...

9 = 9

√11  = 3.31662...

Incorrect

5 0
3 years ago
Triangle LMN is located at L(2,3), M(1,2), and N(4,4). The triangle is then transformed using the rule (x+5, y+2) to form the im
charle [14.2K]
Using the rule (x+5, y+2) you would add 5 to the x value and 2 to the y value so the answer would be L' (7,5) M' (6,4) N' (9,6)
8 0
3 years ago
Is the following statement true or false?
a_sh-v [17]
Yes it is true that when you write a check you must write the amount to be paid in both numbers and words for security purposes
6 0
3 years ago
Read 2 more answers
What is the approximate area of the figure? Help pls.....
Vaselesa [24]
Okay, first we need to calculate the area of the rectangle. 

Area of Rectangle- 16 x 6 = 96 

Next, we need to calculate the area of the semicircles. 

Formula: Radius x Radius x pi (3.14) = Area of circle

 Since we know that the diameter is 6 we can figure out the radius. 
The radius is half of the diameter. So our radius is 3. 

3 x 3 x 3.14 = 28.26

Since it's a semi circle we now need to divide by 2. 

28.26 divided by 2 = 14.13 

Then, we add.  

Area of rectangle 
+
Area of 2 semi circles 

96 + 14.13 + 14.13 = Total Area of The Figure 

So our answer is 124.26

7 0
3 years ago
Nina can ride her bike 63,360 feet in 3,400 seconds, and Sophia can ride her bike 10 miles in 1 hour. What is Nina's rate in mil
avanturin [10]
5,280 feet → 1 mile
63,360 feet → 63,360/5,280 = 12 miles

60 x 60 seconds → 1 hour
3,400 seconds → 3,400/3,600 = 17/18 hours

Nina's rate = 12 miles / (17/18) hours = 12 12/17 miles per hour.
4 0
3 years ago
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