Step-by-step explanation:
sin2x - sinx = 0
2sinxcosx - sinx = 0
(Double Angle Formula)
sinx(2cosx - 1) = 0
Either sinx = 0 or cosx = 1/2.
When sinx = 0,
x = 0 or x = π.
When cosx = 1/2,
x = π/3 or x = 5π/3.
Hence the solutions are
x = 0, x = π/3, x = π or x = 5π/3.
Bella measured the heights of her corn stalks in centimeters. The heights are 81, 88, 69, 65, 87.
What is the mean height of Bella's corn stalks?
A. 69 cm
B. 75 cm
C. 78 cm
D. 80 cm
E. 81 cm
a machine at a graphic design studio produces paper labels for juice bottles. This graph represents the number of labels produced over time.
Based on the graph, how many labels are produced per minute?
50 labels/minute
75 labels/minute
100 labels/minute
150 labels/minute
Answer:
150 labels/ minute
Step-by-step explanation:
As you can see on the graph there is a point on (1,1 1/2)=150/1
Also 150*2=300 so it all makes sence
Solve 3(x − 4) = 12x
x=?
Answer:
im pretty sure the answer is eight!
Step-by-step explanation:
Answer:
x = -4/3
Step-by-step explanation:
[tex]3(x-4)=12x\\\\3x-12=12x\\\\3x-12+12=12x+12\\\\3x=12x+12\\\\3x-12x=12x-12x+12\\\\-9x=12\\\\\frac{-9x=12}{-9}\\\\\boxed{x=-\frac{4}{3}}[/tex]
Hope this helps!
2x + 5y = 6
find the x-intercept of the line
Answer:
X=-2.5+3
Step-by-step explanation:
2x + 5y = 6
2X=-5Y+6
X=-2.5Y+3
A Solution of the equation,
3x2 + 2x + 1 = 0 is
Answer:
x = -3.5
Step-by-step explanation:
POE = PROPERTY OF EQUALITY
3*2 + 2x + 1 = 0
6 + 2x + 1 = 0 ## ^ Multiplication
7 + 2x = 0 ## ^ Combine like-terms
2x = -7 ## ^ Subtraction POE
x = -3.5 ## ^ Division POE
Answer:
X=0
Step-by-step explanation:
Use PEMDAS to get rid of some things. Do 3 x 2 = 6. Then distribute the like terms to one side seperating 2x and "0": +1 ---> 0-1 = -1. Now divide... 2x/2 = x (cancels out) and 0/2 = 0. Therefore X=0. But I'm not a computer so double check your answer.
What operation would you use to solve: x+7=10
Answer:
x=3
Step-by-step explanation:
x+7=10
x+7-7=10-7
x=3
Answer:
You would use subtraction
Step-by-step explanation:
To get 7 away, you need to subtract it
25 x 10^9 in standard form
Answer:
25000000000
Step-by-step explanation:
What is the value of y
To be able to go on a trip to South America, Salma decides to save for 2 years. She opens a savings account with $700 . The account pays simple interest at an annual rate of 5% . She doesn't make any more deposits.
(a) How much total interest will Salma earn?
(b) What will the total amount in the account be (including interest)?
Answer:
(a) I'm pretty sure it's $71.75
(b) the total would be $771.75 if i calculated it right...
please help√√√:-) 1111
Answer: 1246 for the first and 1400 for the second
Step-by-step explanation:
i need help with this. im confused.
A ship leaves port at 1 pm traveling north at the speed of 30 miles/hour. At 3 pm, the ship adjusts its course on a bearing of N 20º E. How far is the ship from the port at 4pm?
Write the following in standard form:
Write
A = 4
B = 2
C = 7
Answer:
4x + 2y = 7
Step-by-step explanation:
The standard form equation goes as follows: Ax + By = C
We know what A, B, and C is so all we need to do is fill them in.
HELP ASAP YALL- PLS
Answer: x = 4
Step-by-step explanation:
since it is showing us that the angles are congruent, we know that the smaller triangle is just a scaled-down version of the larger one. in other words, it is the EXACT SAME triangle, just slightly smaller.
so, i redrew them next to each other, so i could compare them easily.
i looked at the corresponding sides that were given, and realized that the side that is 10 on the larger triangle is equal to 5 on the smaller triangle. the side that is equal to 6 on the larger triangle is equal to 3 on the smaller triangle. this concludes that the smaller triangle is exactly half the size of the larger triangle!
so, i figured (using logic) that x must equal 4, simply dividing its corresponding side (with a measure of 8) in half.
hope this helps! xoxo
2s + (-4s) simplify
Answer:
-2s
Step-by-step explanation:
Answer:
-2s
Step-by-step explanation:
We have: 2s + (-4s)
Take -4s outside of the parentheses and we now have: 2s - 4s
Now subtract and the simplified equation will be: -2s
PLS HELP ASAP I DONT HAVE TIME FOR THIS, IT ALSO DETECTS IF ITS RIGHT IR WRONG
Answer:
a
Step-by-step explanation:
Sam had 1 1-2 m of rope. He cut off 5-8 m and used it for the project. How much does Sam have left
what is the other endpoint of a segment with one endpoint at(-3, 8) and the midpoint at (7, 1)?
Answer: The other point is (17, -6).
Step-by-step explanation:
Midpoint (x,y) of the line segment joining (a,b) and (c,d) is given by :-
[tex](x,y) =(\dfrac{a+c}{2}, \dfrac{b+d}{2})[/tex]
Here, we need to find the other endpoint of a segment with one endpoint at(-3, 8) and the midpoint at (7, 1).
Let other point be (a,b), then
[tex](7,1)=(\dfrac{-3+a}{2},\dfrac{8+b}{2})\\\\\Rightarrow\ \dfrac{-3+a}{2}=7\ \text{ and }\dfrac{8+b}{2}=1\\\\\Rightarrow\ -3+a = 7\times2 \text{ and } 8+b=1\times2\\\\\Rightarrow\ -3+a=14\text{ and }8+b=2\\\\\Rightarrow\ a=14+3, \ \ \ b= 2-8\\\\\Rightarrow\ a=17, b= -6[/tex]
hence, the other point is (17, -6).
Identify the horizontal asymptote of each graph.
y = 0
y = 1
y = 6
Identify the horizontal asymptote of each graph.
y = 0
y = –3
y = –5
Answer:
y = 0 and y = -3
Step-by-step explanation:
The horizontal asymptote of each graph is:
1. y=0
2. y= -3
What is asymptote?An asymptote of a curve y = f (x) that has an infinite branch is called a line such that the distance between the point (x, f (x)) lying on the curve and the line approaches zero as the point moves along the branch to infinity.
1.Given function:
t(x)= [tex]6^{x}[/tex]
If we apply limit x→∞, then we get y=c as horizontal asymptote
So, [tex]\lim_{x \to \infty} 6^{x}[/tex]= 0
Hence, the asymptote will by y=0.
2. Given function:
t(x)= [tex]5^{x}[/tex]-3
If we apply limit x→∞, then we get y=c as horizontal asymptote
So, [tex]\lim_{x \to \infty} 5^{x} -3[/tex]= -3
Hence, the asymptote will by y=-3.
Learn more about asymptote here:
https://brainly.com/question/4608493
#SPJ2
Pleasse Helppp Asapppp.
Answer:
77 degrees
Step-by-step explanation:
supplementary angles add up to 180 degrees
subtract 103 from 180 to get 77 degrees
A line has the slope of 5/3
Which of the following points could this line pass through?
o (15, 13) and (0, 4)
(3,9) and (6, 14)
o (0, 4) and (19,9)
o (5, 7) and ( 10, 10)
1 2 3 4
Answer:
(3,9) , (6,14)
Step-by-step explanation:
9 + 5 is 14
3 + 3 is 6
Answer:(3,9) , (6,14)
Step-by-step explanation:
Put the following equation of a line into slope-intercept form, simplifying all
fractions.
8x – 6y = 54
How many kilometers are there in 4 miles?
Hint: 1 mi ≈ 1.6 km
Round your answer to the nearest tenth.
Complete each statement with a number that makes the statement true.
_____ < 7°C
Do not include units (°C) in your answer.
copied for free from openupresources.org
Select one:
15
8
4
10
Answer:
4
Step-by-step explanation:
the answer is: 4
cause 4 is less than 7
What is the perimeter of a square with a length of 19 meters?
Answer:
76 m
Step-by-step explanation:
If each side has a length of 19 m, then the perimeter is 19m*4 = 76 m
Find the slope of the line from a graph! Will Give brainliest :)
Answer:
-4
Step-by-step explanation:
because the line is going from top to bottom it is negative
you take the rise ( the Y value) / the run (the X Value)
the Y and X value can be pulled from any two points
The diameter of a circle is 16 yards. What is the circle's area?
d=16 yd
Use 3.14 for n.
Answer: D=16km
r=8km
circumference of a circle= 2πr
= 2*3.14*8
=50.24km
P.S 3.14 is used as the value for π (pie)
Step-by-step explanation:
brianna caught 4 fish . gabi caught 8 times as many fish as brianna. which expression shows how many fish gabi caught
Answer:
multiplication
Step-by-step explanation:
brianna=4
gabi=8 x brianna
If 6x+3y=−1 and
5x+y=8 are true equations, what would be the value of
−x−2y?
Answer: 9
x = 2.778
y = -5.889
-x -2y
= -2.778 - 2(-5.889)
= 9
What is the slope of the line y=8?
Answer:
undefined or 0
Step-by-step explanation:
Answer:
The answer is 0 because undefined is straight up or vertical