In a unit circle, ø= 90°. Identify the terminal point and sin Ø.
A. Terminal point: (0,1); sin ø= 1
B. Terminal point: (1,0); sin ø=0 C. Terminal point: (1, 0); sin ø=1
D. Terminal point: (0,1); sin ø=0
Answer:
Terminal point: (0, 1); sinФ = 1 ⇒ A
Step-by-step explanation:
In the unit circle, Ф is the angle between the terminal side and the positive part of the x-xis.
The terminal point on the positive part of the x-axis is (1, 0),which means Ф = 0° or 360° and cosФ = 1, sinФ = 0The terminal point on the positive part of the y-axis is (0, 1),which means Ф = 90° and cosФ = 0, sinФ = 1The terminal point on the negative part of the x-axis is (-1, 0),which means Ф = 180° and cosФ = -1, sinФ = 0The terminal point on the negative part of the y-axis is (0, -1),which means Ф = 270° and cosФ = 0, sinФ = -1In a unit circle
∵ Ф = 90°
→ By using the 2nd rule above
∴ The terminal point is (0, 1)
∴ sinФ = 1
∴ Terminal point: (0, 1); sinФ = 1
I need help on this its really confusing too!
THIS IS DUE TODAYYY!!!!!
Answer:
D.
Step-by-step explanation:
If I am wrong let me know.
Have a good one.
Find the area of a square with radius of 10
Which line has an equation of y = -5x + 4 in slope-intercept form?
a line passing through the points (1,9) and (3,19)
a line passing through the points (2,-14) and (4,-24)
a line passing through the points (1,1) and (3,11)
a line passing through the points (2,-6) and (4,-16)
Answer:
its the forth one i got it right
Step-by-step explanation:
David joined a new gym. The gym charges a registration fee $75 and a monthly fee of $45. After how many months, m will David have spent $435. Write an equation for the given scenario.
Answer:
8 months
Step-by-step explanation:
45x8=360+75=435 the 75 dollars is from the registration fee.
Evaluate 0.1m+8-12n0.1m+8−12n0, point, 1, m, plus, 8, minus, 12, n when m=30m=30m, equals, 30 and n=\dfrac14n=
4
1
n, equals, start fraction, 1, divided by, 4, end fraction.
9514 1404 393
Answer:
8
Step-by-step explanation:
Apparently, you want to evaluate ...
0.1m +8 -12n
for m = 30 and n = 1/4.
Put the numbers where the corresponding variables are and do the arithmetic.
= 0.1×30 +8 -12×(1/4) = 3 + 8 -3
= 8
How to divide 7 divided by 7/4
Answer:
4
Step-by-step explanation:
7÷7/4
in these cases we multiply by the reciprocal
7× 4/7
7 and 7 can be cancelled with each other
the remaing answer = 4
Answer:
1/4
Step-by-step explanation:
First, since the numerator is 7 you want to see how many times you can divide that.
So, you can only divide 7 by 7 1 time so that turns into 1.
Hence, your numerator is now 1 and denominator stays the same so its..
1/4
Evaluate 1.3 x 0.03
Answer:
0.039
Step-by-step explanation:
Multiply.
1.3 x 0.03 = 0.039
help help! i’ll give brainly
Answer: 119
Step-by-step explanation:
we will replace x and y with the given values x=3, y=-2
-3(3^3)(-2)-4(3)(-2)^2+5= -3(27)(-2)-4(12)+5=
=119
Solve in PEMDAS:
3 + [2 + 3 X (6 X 3)]
I picked the blue one, was I correct?
Answer:
yes
Step-by-step explanation:
The given formula
[tex]a_{n}[/tex] = 5n + 3 ← is an explicit formula for an arithmetic sequence
WILL GIVE BRAINLIEST
Answer:
(6x - 1) • (2x + 9)
Step-by-step explanation:
STEP
1
:
Equation at the end of step 1
((22•3x2) + 52x) - 9
STEP
2
:
Trying to factor by splitting the middle term
2.1 Factoring 12x2+52x-9
The first term is, 12x2 its coefficient is 12 .
The middle term is, +52x its coefficient is 52 .
The last term, "the constant", is -9
Step-1 : Multiply the coefficient of the first term by the constant 12 • -9 = -108
Step-2 : Find two factors of -108 whose sum equals the coefficient of the middle term, which is 52 .
-108 + 1 = -107
-54 + 2 = -52
-36 + 3 = -33
-27 + 4 = -23
-18 + 6 = -12
-12 + 9 = -3
-9 + 12 = 3
-6 + 18 = 12
-4 + 27 = 23
-3 + 36 = 33
-2 + 54 = 52 That's it
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -2 and 54
12x2 - 2x + 54x - 9
Step-4 : Add up the first 2 terms, pulling out like factors :
2x • (6x-1)
Add up the last 2 terms, pulling out common factors :
9 • (6x-1)
Step-5 : Add up the four terms of step 4 :
(2x+9) • (6x-1)
Which is the desired factorization
HOPE IT HELPS! :))
Given: a//b c//d e//f, m<7=24, and m<20 = 80 what is m<1
Answer:
m∠1 = 100
Step-by-step explanation:
m∠2 = 80
m∠1 = 180 - 80 = 100
An oil rig has a height of 74.98 m visible above water and extends 518.16 m below the surface to the sea floor. What is the total height of the oil rig?
please help i really need help A.S.A.P :). pls help me
Answer:
591.14 m
Step-by-step explanation:
74.98 (above water level) + 518.16 (below water level) = 593.14 m (total height of the oil rig)
Hope this helps :)
Add (16n2 + n + 1) + (4n2 - 5n - 2).
Answer:
20n2-4n-1
Step-by-step explanation:
You combine like terms, so you add 16n2 with 4n2 to get 20n2. Then you add n with -5n to get -4n. Finally, you add 1 with -2 to get -1.
Select ALL the answers that apply.
A student is solving the equation 21 y + 3) = 14 for y. Which of these could be the next step?
1. Distribute on the left hand side to get 2y +3 = 14
2. Divide both sides by 2 to get y+3 = 7
3. Distribute on the left hand side to get 2y +6 = 14
4. Subtract 3 from both sides to get 2y = 11
5. Divide both sides by 2 to get y+3 = 14
Find the number that belongs in the green box.
Round your answer to the nearest tenth.
Answer:
49.4 degrees
Step-by-step explanation:
SOHCAHTOA
tan x = opposite / adjacent
tan x = 7 / 6
using graphing calculator, you get x = 49.398 round to tenth = 49.4 degrees
please give thanks :)
Calculate the slope through the points (2, 3) and (2,-6) The slope = _
Answer:
m = undef
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Point (2, 3)
Point (2, -6)
Step 2: Find slope m
Simply plug in the 2 coordinates into the slope formula to find slope m
Substitute [SF]: [tex]m=\frac{-6-3}{2-2}[/tex]Subtract: [tex]m=\frac{-9}{0}[/tex]Define: m = undef
anyone know this? i’m to lazy
Answer:
1215
Step-by-step explanation:
Which is the correct way to express 489.65 in expanded form?
A
400 + 80 + 9 + 0.06 + 0.05
B
400 + 80 + 9 + 0.6 + 0.05
C 400 + 80 + 9 + 6 + 0.5
D
400 + 80 + 9 + 0.065
Original price is $16.45, markdown is 33%. The sales price is (only use numbers): $
Answer:
$11.02
Step-by-step explanation:
Write two truths and a lie about the graph shown below (I have no idea what they are trying to ask)
HELP PLEASE HELP!!!!!
(i): A triangle where all three sides are equal and the same.
(ii): A triangle where all three sides are unequal in length.
(iii): A triangle that has two sides of equal length.
(iv): A triangle where all three internal angles are acute(they measure less than 90 degrees.
(v): A triangle where all three internal angles are obtuse(measure above 90 degrees).
(vi): A triangle where one internal angle is a right angle(90 degrees).
Hope this helps
Answer:
(i): A triangle where all three sides are equal and the same.
(ii): A triangle where all three sides are unequal in length.
(iii): A triangle that has two sides of equal length.
(iv): A triangle where all three internal angles are acute(they measure less than 90 degrees.
(v): A triangle where all three internal angles are obtuse(measure above 90 degrees).
(vi): A triangle where one internal angle is a right angle(90 degrees).
Hope this helps
Step-by-step explanation:
I WILL GIVE YOU BRAINLIST HURRY
Which expression is equivalent to 3(2x+1)−(x−1)
?
A
3x+6
B
5x+2
C
5x
D
5x+4
Answer:
b
Step-by-step explanation:
3(2x+1)-(x-1)
\ / / /
5x+2
Answer:
fgcgfcgchgcchcgccghccghcgcghgghcgchchchgcgcghchgchg
Step-by-step explanation:
PLEASE HELP ASAP
Which function has an inverse that is a function
Answer:
Options (1) and (3)
Step-by-step explanation:
Option (1)
f(x) = x²+ 3
We can rewrite the function in the equation form as,
y = x² + 3
By interchanging y by x,
x = y² + 3
Now we solve it for y,
y² = x - 3
y = ±√(x - 3)
So the inverse function is,
[tex]f^{-1}(x)=\pm \sqrt{x-3}[/tex]
It's a function.
Option 2
d(x) = -9
Equation form of the function is,
y = -9
Replacing y by x,
x = - 9
Therefore, inverse function will be,
x = -9
Inverse is not a function
Option 3
m(x) = -7x
Equation form of the function,
y = -7x
Interchanging y by x,
x = -7y
Now solve for x,
y = [tex]-\frac{1}{7}x[/tex]
So the inverse function will be,
[tex]m^{-1}(x)=-\frac{1}{7}x[/tex]
Inverse is a function.
Option 4
p(x) = |x|
As this function not a one to one function inverse function is not possible.
Inverse of |x| is not a function.
expand and simplify 5(2x-1)+2(3x-6)
Answer:
16x - 17
Step-by-step explanation:
Answer:
16x-17
Step-by-step explanation:
Question below in image
I need help on this and that’s it!
Answer: 22 mor packages.
Give me brainlyest please.
Step-by-step explanation:
Sharon's brother works at a shoe store and earns a commission. He earns 2.5% of the amount he sells. Last week he sold $900 worth of shoes, how much did he earn in commission?
Answer:
her brother either earns 12.6$ or 22.6$
Step-by-step explanation:
If any of those answer where correct thanks add me as a brainlist
Out of 30 girls who tried out for the lacrosse team, 12 were selected. Out of 40 boys who tried out, 16 were selecte. Are the ratios of the number of students on the team to the number of students trying out the same for both boys and girls:? How do you know?
Answer:
The answer is yes
Step-by-step explanation:
The ratio for both is 2.5
Answer:
Boys:
ratio = 16/40 = 2/5
Girls:
ratio = 12/30 = 2/5
They are the same.