Answer:
cos 0=90 degrees
Step-by-step explanation:
If sin of 90 is 1 then cos 90 is 0. Since sin and cos are like complementary angles they angles add up to 90 degrees.
[tex] \sin(90) = \cos(0) [/tex]
and since sin 90 equal 1 cos of 0 equal 1.
What if we switch angles
Well they are still equal
[tex] \sin(0) = \cos(90) [/tex]
But this time sin of 0 is 0 and cos 90 is 0.
If the function sin 90° is 1, then the cos90° value is zero.
What is Trigonometry?Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.
Given that sin 90° is 1
We need to find the cos 90°.
We know that the function sine is Opposite side/ hypotenuse
cosine is Adjacent side/ hypotenuse.
sine is reciprocal of cosec
Sine = 1/ cosec
cosine = 1/ sec
The value of cos90 is zero.
Hence, If the sin 90° is 1, then the cos90° value is zero.
To learn more on trigonometry click:
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1/2x-2
One half multiply negative 2
Answer:
Step-by-step explanation:
11
Answer:
-1
Step-by-step explanation:
first 1/2 of 2 is 1
the 2 is negative so it makes the solution negative
Giveaway Contest!
Guess the total amount of coins I received from the 8 Mega Boxes in this offer. Winner gets $10! Money bag
Hint:
- The box with the fewest had 503 coins and the biggest was 696. So that means it must be a number between 4024 and 5568!
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y=x+5
y=3x
Solve each system algebraically
the correct answer is
3x = x + 5
3x - x = 5
2x = 5
x = 5/2
Given 100 grams of bacteria that decreases at the rate of 1/2 per year. What would be an appropriate range after 4 years
Answer: B 0
Step-by-step explanation:
69 = 50 + s; 17, 18, 19
Answer:
19
Step-by-step explanation:
Can y’all help me on question 17?!
Answer:
18 ft
Step-by-step explanation:
5 years for every 3 feet
30 years
Knowing this information, we can multiply or create an equation:
Multiplication:
5 x 6 = 30 so...
3 x 6 = 18
Equation:
5/3 = 30/x
5x = 90
/5 /5
x = 18
guys why does my bottle thats called shampoo taste like soap and its fluffy it says cucumber edition i wanted to taste it but it tastes nothing like cucumber and it makes me gassy please help and explain how to stop this
Answer:
I'm pretty sure you can stop it by not drinking shampoo.
Step-by-step explanation:
shampoo is bad for you.
Answer:
Stop eating the shampoo
Step-by-step explanation:
If, you don't eat the cucumber shampoo it will not make you gassy.
x^2+6x+9=16 solve by completing the square
First move the 9 to the right side by subtracting 9 from both sides.
So we have x² + 6x ___ = 7 ___.
Notice that I created a space on each side of the equation.
The space is what we need to complete the square.
The number that goes in the spaces comes from half the coefficient of the
middle term squared, which in this case is half of 6, or 3, squared, which is 9.
So we add 9 to both sides of the equation.
Once we have completed the square, out trinomial will always factor as a binomial squared, and the number that goes inside the binomial will always be half the coefficient of the middle term of the trinomial.
So we have (x + 3)² = 16.
Now square root both sides to get x + 3 = ± 4
So x + 3 = 4 or x + 3 = -4.
Solving each equation from here, we get x = 1 or x = -7.
So our solution set is {1, -7}.
Pls help extra points and mark brainlist
5n+2k = 25k or 7n but u have to divide by 2
25k divided by 2 = 12.5
7n divided by 2 = 3.5
12.5 + 3.5 = 16 therefore the answer is 16
Need help ASAP pleaseee
Like right nowww
Answer:
1,530
Step-by-step explanation:
sry if im wrong
Answer:
1106
Step-by-step explanation:
PLS HURRY
Use the protector to measure the angle.
Answer:85
Step-by-step explanation:
how do find the motion rule in dilation?
Answer: The Video Math Tutor. This is a great channel that provides several tutoring math videos covering different topics including Basic Math lessons,, calculator tips, brain teasers, and many more.
Step-by-step explanation:
2 / 3 doesn't equal 8..
Answer: 2 / 3 = 0.666666666667
I need help with this question answer ASAP
Answer:
A
Step-by-step explanation:
Plug 2 in for y in the second equation. You get 3 as x. So x=3 and y=2. (3,2)
Which is the smallest standard deviation?
Answer:
C
Step-by-step explanation:
Because I'm smart.
PLEASE HELP!!!
1 + 1 = ?
Step-by-step explanation:
1+ 1 Is equal to 2
Hope it helps :)
Answer:
2
Step-by-step explanation:
I really hope this helped .....I know how hard maths can be but I believe in u:)))))))))
Find the difference
Answer:1.)-21. 2.)33. 3.)12. 4.)6. 5.)24
Step-by-step explanation:
Please help I dont get this
Answer: The commutative property
Step-by-step explanation: The commutative property is where an equations can be swapped and not change the answer. The following is true with that problem.
A triangle has an area of 64 cm² and a base of 10 cm².
What is the height of the triangle?plsssssssssssss help
Will give 5/5 if 2 ppl answer I can give brainlest
Answer:
Your answer is 12.8
Hope that this is helpful. Tap the crown button, Like & Follow me
Hello please answer these questions for me I do not get them.
Pls help me I have to finish this by tomorrow so does anyone know this !
Answer:
[tex]605[/tex]
Step-by-step explanation:
[tex]605[/tex]
[tex]47[/tex]√[tex]28435[/tex]
[tex]-282[/tex]↓
[tex]23[/tex]
[tex]-0[/tex]↓
[tex]235[/tex]
[tex]-235[/tex]
[tex]0[/tex]
Hope this helps!
plz mark me brainliest. :)
Which scenario best matches the inequality x>3?
A. Joanna needs to be in bed by 10 p.m. It’s now just past 7 p.m. How many more hours, x, can Joanna stay up?
B. Lana stays after school from 3 p.m. until 6 p.m. How many hours, x, does she spend at school during that time frame
C. Ricardo has a math exam. He started studying at 4 p.m. and will not stop until after 7 p.m. How much time, x, will he spend studying?
D. Jared’s baseball game starts at 12 p.m. The game needs to end before 3 p.m. because another team must use the field. How much time, x, can Jared’s team play?
Answer:
B
Step-by-step explanation:
Help me pls pls pls pls
Answer:
1. 300
2. x-axis
3. 150
Step-by-step explanation:
Help!! Problem solving with angles.
PLEASE HELP!!! URGENT!!
Answer
234
Step-by-step explanation:
I don't really understand exponents well I was wondering if I could get some help on this plz
Ok so do 9 times itself 5 times so basically its this:
9*9*9*9*9
Next do the same but 3 times:
9*9*9
Exponents are not this:
9*3
But this:
9*9*9
Your answer:
59049/729
Another way to say it:
59049 over 729
There is your answer hope this helps
Answer:
9^2 (9 to the power of 2)
Step-by-step explanation:
Ok, this is how you find exponents:
Well, exponents are really just abbreviated multiplication, so to find the numerical value of 9^5 and 9^3, you need to multiply 9 by itself 5 times and 3 times, then divide.
9*9*9*9*9= 59049
9*9*9= 729
Then you divide: 59049/729= 81.
But the question asks to rewrite the answer using a single positive exponent, so now we simplify 81 into an exponent.
The square root of 81= 9
9*9=81
81 as an exponent= 9^2 (or 9 multiplied 2 times)
Another simple trick for solving exponents is to subtract the exponents:
9^5-9^3= 9^2 (5-3=2)
I hope this answer was helpful!
Natalie uses a 15% off coupon when she buys a camera. The original price of the camera is $45.00. How much money does Natalie save by using the coupon?
Answer:
she saves 6.75 with the coupon
Solve for the value of W
Answer:
8°
Step-by-step explanation:
5w + 1° + 7w - 7° + 90° = 180° { being linear pair }
12w = 180° - 84°
12w = 96°
w = 96° / 12
w = 8°
Hope it helps :)
Answer:
5w+1+90+7w-7=180(linear pair)
12w=180-84
w=96/12=8
due today helpppppppp meeeeeeeee
help me pls the possible answers are 50⁰ 60⁰ 100⁰ and 240⁰
9514 1404 393
Answer:
(b) 60°
Step-by-step explanation:
The sum of angles in a pentagon is 540°, so you have ...
90° +90° +150° +x +150° = 540°
x = 540° -480°
x = 60°