Given f(x) = 2 sin x, find the exact value of f (7pi/6) in simplest form with a rational denominator.
Answer:
[tex]\bold{f(\frac{7\pi}6)=-1}[/tex]
Step-by-step explanation:
[tex]f(\frac{7\pi}6)=2\sin(\frac{7\pi}6)=2\sin(\frac{7\pi}6)=2\sin(\pi+\frac{\pi}6)=-2\sin(\frac{\pi}6)=-2\cdot\frac12=-1[/tex]
Please help meeeeeeeeeeeee
Answer:
Equation 1: 50 + 5x = 80, Or 5(10 + x) = 80
Equation 1 answer: 6
Equation 2: 5x + 10 = 80
Equation 2 answer: 14
Which of these is the best definition of an ellipse?
A. The set of all points in a plane for which the sum of the distances
to two fixed points equals a certain constant
B. The set of all points in a plane for which the difference between
the distances to two fixed points equals a certain constant
C. The set of all points in a plane that are equidistant from a single
point and a line
D. The set of all points in a plane that are a certain distance from a
single point
Letter A just did it
Pls help me pls will mark brainliest
Answer:
69.08
Step-by-step explanation:
The circumference of a circle is given by 2*pi*r
If the radius is 11 m, then:
C = 2 * pi * 11 = 22 * pi = 69.08 m
Is (6, 8) a solution to y = 8/3x - 8?
Answer:
Yes it is a solution
Step-by-step explanation:
[tex] \frac{8}{3} \times 6 - 8 = \\ 16 - 8 = 8[/tex]
Answer:
Is (6, 8) a solution to y = 8/3x - 8?
Step-by-step explanation:
Please help me with this soon
Answer:
The answer is 20π
Step-by-step explanation:
C = dπ
C = 20π
Answer:
c, 40 feet
Step-by-step explanation:
if half the area of a circle is 20, the other half is also 20, so 20 plus 20 is 40
Here is a sequence of numbers:
1
3
6
10
15
What is the name given to these numbers?
Triangular number sequnce
if y=3 then 14y equals
Answer:
42
Step-by-step explanation:
14(3)
Answer:
42
Step-by-step explanation:
first, substitute 3 for y in 14y. 14y means you are multiplying 14 and y, so when you plug in 3 for y, you're multiplying 14 and 3! :)
14y ⇒ 14(3)simplify by multiplying 14 · 3.
14(3) = 42so, when y = 3, 14y = 42.
you can check the answer by solving for y in 14y = 42.
divide both sides of the equation by 14.
14y/14 = 1y or y42/14 = 3after dividing, you're left with y = 3. that means 14y does indeed equal 42 when y = 3! :)
i hope this helps! have a great rest of your day <3
Emily puts $10,000.00 into an account which earns 11% interest, compounded quarterly. How
much will she have in the account after 5 years? Round your answer to the nearest cent.
pls hurry it’s for a math test
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The owners were happy that the house had appreciated in value at a rate of 5% each year
Answer:
Exponential Growth
Step-by-step explanation:
The growth value is a positive number. So that mean's it's growing by 5%.
Plz help due tomorrow
Answer:
20.5+10x
Step-by-step explanation:
help me please. i have no clue what i’m doing!
Answer:
I believe transversal is the correct answer because it isn't a part of the triangle.
Are the two triangles congruent? (picture attached)
Answer:
c
Step-by-step explanation:
Randy’s circular garden has a radius of 1.5 feet. He wants to enclose the garden with edging that costs $0.75 per foot. About how much will the edging cost?
Answer:
$2.25 is answer
perimeter of circular garden=2πr=2×π×1.5=3πfeet
1 foot=$0.75
3πfeet=3×$0.75=$2.25
What is the value of y?
Y-10
y+130
y+45°
Answer:
Step-by-step explanation:
its 165
y= 3x – 6
y = -x + 2
Plot two lines by clicking the graph.
Answer: x=−2/17 and y=−6/17 look at the picture
Step-by-step explanation: hope this help :)
Helpppp pleaseeeeeeeeeeeeeeeeeeeee it's due at 12:00 odjsoisjsis please see helppp, with explanation pleaseee
4. The state of Neveda has 70 million arces of land. If 90%
of the acres of land is fedecally owned, How many arces of
land are not federally owed?
this is the correct answer
Which number represents 3.5 x 10^9
Answer:
3,500,000,000
Step-by-step explanation:
the exponent symbolizes how many places the decimal moves. since its positive, it moves to the right. if it where a negative exponent then it would move to the left.
I will check i do it on my phone ill help u out
Pls help will mark brainiest
Answer:
35x 10000500Step-by-step explanation:
35 divided by 7 is 5. 3,500 is 35 x 100. 35 hundreds (3,500) divided by 7 is 5 hundred (5 with 00 at the end). 3,500 divided by 7 is 500.
Hope it helps!
please help will give brainliest
Answer:
Answer is c
Step-by-step explanation:
A student answers 75% of the questions on a math exam correctly.If he answers 15 questions correctly,how many questions are on the exam
Answer:
20
Step-by-step explanation:
True of flase a point (0,2) can be reflected across the x-axis PLEASE HELP 50 POINTS
Answer:
The rule for reflecting over the X axis is to negate the value of the y-coordinate of each point, but leave the x-value the same. For example, when point P with coordinates (5,4) is reflecting across the X axis and mapped onto point P', the coordinates of P' are (5,-4).
So what do you think the answer is true or false
Answer:
True
Step-by-step explanation:
That is possible since the x is on 0. It can flip and then it lands on (0,-2) I think.
Hope this helped!
The vertices of a swimming pool are E(5, 5), F(5, 20), G(35, 20), and H(35, 5). The endpoints of a line that divides the pool into two sections are J(15, 5) and K(15, 20). The coordinates are measured in meters. What is the area of each section?
Answer:
Step-by-step explanation:
is -0.75 bigger or less than -0.4?
Answer:
Because they are both negative that means they are on the left side so -0.4 is closer to the 0 so less.
Below are Erica’s bowling scores from her last five games.
89, 98, 110, 98, 105
Erica added up all her scores and divided by 5. Which measure of central tendency did she find?
Question 1 options:
Mean
Median
Mode
Range
Answer:
Mean
Step-by-step explanation:
Fractions less then 1/2
Answer:
Step-by-step explanation:
16 fractions less than one half
1/9, 2/9, 3/9, 4/9, 1/8, 2/8, 3/8, 1/7, 2/7, 3/7, 1/6, 2/6, 1/5, 2/5, 1/4, 1/3
Answer:
1/3, 1/4, 1/5, 1/6
Solve each equation
2x = 10
-3x = 21
1/3x = 6
-1/2}x = -7
Use the quadratic formula to solve 2x2 + 2x - 12?
Answer:
2,-3
Step-by-step explanation:
i did the math lol- trust me
Answer:
yellow: 2 & -3
Step-by-step explanation:
Please answer both
Answer:
9) 5/10
10) 4/5
Step-by-step explanation:
A terminating decimal is a decimal that stops eventually
2/3 = 0.6666666...
5/6 = 0.833333...
5/10 = 0.5
6/9 = 0.6666666...
5/10 has a result of a terminating decimal
8/9 = 0.888888...
1/7 = 0.142857...
4/5 = 0.8
4/11 = 0.36363636....