Cos(0.5)+cos(0.5+2(3.14159265))+cos(0.5+4(3.14159265))
Answer:
2.63274768567
Step-by-step explanation:
First, note that 3.1415... is p, so 2(3.1415...) is 2pi and 4(3.1415...) is 4pi.
2pi and 4pi are full rotations, which will lead to the same cosine (i.e. cos(x) = cos (x+2pi) = cos(x+4pi) = ... = cos (x+2k*pi)).
So, the expression equals cos0.5 + cos 0.5 + cos0.5 = 3cos0.5 = 3(0.87758256189) = 2.63274768567
I hope this helps! :)
b. 3 ice cream cones cost $3.75.
At this rate, how much do 2 ice cream cones cost?
Answer:
2.50
Step-by-step explanation:
Lets find the unit rate first! 3.75/3 because that is the problem. Now once we divide that we get 1.25. With 1.25 we multiply by 2 to get your answer of 2.50!
Have a good day!
Answer:
The answer am almost postive is 2.5
Step-by-step explanation:
Solve for the value of p.
(8p+4)
54°
Answer:
p=-6 I hope I helped! Enjoy your day
help fast please it's timed
Answer:
2x= 3x-7
-x=-7
x=7
so, the first option
Step-by-step explanation:
In order to graph a line your equation must be set equal to y. If I gave you the following equation would you be able to graph it in the form it is given? If not, rewrite the equation so that you could graph it. - 6x + 12y = 9
Answer:
Step-by-step explanation:
Graphing the equation in the form it is given is eventually hard so we always rewrite the equation in the form of y. Lets rewrite the equation in the form of y.
[tex]-6x+12y=9\\12y=6x+9\\\\y=\frac{6x+9}{12} \\\\y=\frac{6x}{12}+\frac{9}{12} \\\\y=\frac{1}{2}x+\frac{3}{4}[/tex]
now if we compare it to our slope-intercept form which is
[tex]y=mx+b[/tex]
m is the slope which is 1/2 which tells us that if the slope is positive the graph is a positive slope means that two variables are positively related that is, when x increases so does y, and when x decreases y also decreases. Graphically, a positive slope means that as a line on the line graph moves from left to right, the line rises, and b is the y-intercept which is 3/4.
Intercept means where the line intersects the specific axis. In this case b is y-intercept which is 3/4 which means the line intersects the y-axis at 3/4
so we have our first point (0 , 3/4)
now in order to graph the line we need one more point that is the x-intercept which means where the line would intersect the x-axis the coordinate would be (x , 0) so lets insert this coordinate into our equation that we rewrote above.
[tex]y=\frac{1}{2}x+\frac{3}{4} \\\\0=\frac{1}{2}x+ \frac{3}{4}\\\\-\frac{3}{4}=\frac{1}{2} x\\\\-6=4x\\\\\frac{-6}{4}=x \\\\x=\frac{-3}{2}[/tex]
so our x-intercept is (-3/2 , 0)
Below I have attached the graph file you check it out for better understanding
Sam is flying a kite that is 20 m from her along the ground and 15 m above her. How long is the string between Sam and the kite?
Answer:
35
Step-by-step explanation:
20 + 15 = 35
BRAINLIEST PLEASE
Drag and drop the answer into the box to match each point to its coordinates.
Please answer fast, thank you. :)
Answer:
A. 2, 1/2
B. -2, 1/2
C. -1.5, 1/4
Step-by-step explanation:
just solve
Answer:
point a: (2, 1 1/2)
point b: (-2,1 1/2)
point c: (-1 1/2, 1/4)
Step-by-step explanation:
someone please give me the answers for this lol
Answer:
A is the correct answer.
Step-by-step explanation:
y and x meet on those numbers. And i did the test.
hope this helps
Investigate Ratios and Rates: Investigation 1
1. Which size jar of peanut butter has the least price per ounce?
A. 9-oz jar for $4.77
В. 18-oz jar for 39.18
с. 24-jar for 1.76
D. 40-oz jar for $20.80
Answer: A. 9-oz jar for $4.77
Step-by-step explanation:
2. What is a positive coterminal angle to -123° that is between 500° and 750° and a negative coterminal angle to -123° that is between −300° and −500°?
Answer:
The two angles are 597° and -483°
Step-by-step explanation:
A coterminal angle to a random angle A, is an angle that has the same terminal side as A.
If we know the angle A, all the coterminal angles to A can be written as:
A + n*360°
Where n is an integer number.
In this case, we know that:
A = -123°
And we want to find a coterminal angle that is between 500° and 750°
Then we can do:
X = -123° + n*360°
And find the value of n such that X is between the desired values.
if we use n = 1 we get:
X = -123° + 1*360° = 237°
This is not enough, we can discard it.
If we use n = 2, we get:
X = -123° + 2*360° = 597°
This is a coterminal angle to -123°, and is in between 500° and 750°.
Now we want to find a coterminal angle to -123° that is in between -300° and -500°, we can do the same thing as before, but now we can try with negative values of n.
We can start with n = -1, then:
X = -123° - 1*360° = -483°
This is a coterminal angle to -123°, and is in between -300° and -500°.
Then the two angles are:
597° and -483°
la medida del vector se llama:
Step-by-step explanation:
suususisissiaisisjsjx
A freshly cut Christmas tree is sold for $30. The tree is 6 feet tall. How much a foot is it for the tree?
Answer:
$5 a foot for the tree
3) Is this relationship a function? Why or why not?
Answer:
The relationship is not a function
Step-by-step explanation:
A function may NOT have two y-values assigned to the same x-value.
Which of the following is the correct slope-intercept form of the equation -4x + 2y = 14?
y = 2x + 7
y = 4x + 14
y = -2x + 7
y = -4x + 14
What is the slope of the line that passes through the points
Answer:
The slope is -2
Step-by-step explanation:
(−4,7);(2,−5)
(x1,y1)=(−4,7)
(x2,y2)=(2,−5)
m= y2−y1 /x2−x1
−5−7 /2−4
−12 /6
−2
this is my third time asking brainly for this question. Find the perimeter and in standard form.
5 The backyard at Selena's new house is in the shape of a square and has an area of 250 square feet. What is
the approximate side length of her yard? (Between which two whole numbers?
A) 15 and 16
C) 16 and 17
B) 17 and 18
D) 18 and 19
Solve the system of equations by using the substitution method.
2x - 3y = 11
y=x-4
help ya girl out?:(
Answer:
Fourth choice, -2
Step-by-step explanation:
If you look at the t-chart at your right, when f(x) is -6, x is -2
Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help Help
Answer:
18:12
Step-by-step explanation:
Answer:
answer is 18 divided by 12
Step-by-step explanation:
please mark brainliest
A 6-foot tall observer casts a 3.5-foot shadow at the same time a silo casts a 49-foot shadow. How tall is the silo?
Answer:
about 28.8 ft.
Step-by-step explanation:
what is the simplest form of this ratio?
100:40:20
Answer:
52
Step-by-step explanation:
The variables x an y vary directly. When x=13, y=52. Which equation correctly relates x and y?
Answer:
The equation which correctly relates x and y is y = 4x
Step-by-step explanation:
The equation of the direct variation is y = k x, where
k is the constant of variationTo find the value of k, use the initial values of x and y∵ The variables x and y vary directly
→ Use the form of the equation above
∴ y = k x
∵ When x = 13, y = 52
→ That means the initial values of x and y are 13 and 52
∴ x = 13 and y = 52
→ Substitute them in the equation above to find k
∵ 52 = k (13)
∴ 52 = 13k
→ Divide both sides by 13
∴ 4 = k
∴ The value of k is 4
→ Substitute it in the equation
∴ y = 4x
∴ The equation which correctly relates x and y is y = 4x
What is the population density of the US if the area of the United States is 4,000 square miles?
Answer:
82050 people/mi^2
Step-by-step explanation:
The population of the US is 328.2 million people and the area of the US is 4000 mi^2 as given. The population density is found by (population)/(area), so we input our values in:
Population density = 328, 200, 000/4000 = 82050 people/mi^2
I hope this helps! :)
Rewrite in simplest terms: (x+10y)-(x+5y)(x+10y)−(x+5y)
Answer:
-x^2-15xy-50y^2+14y
Step-by-step explanation:
helppp i’ll give brainliest if it’s right :)
Answer:
2 real solutions
Step-by-step explanation:
Pamela's age is three times Jiri's age. The sum of their ages is 68. What is Jiri's age?
Answer:
17
Step-by-step explanation:
x + 3x = 68
4x = 68
x = 17
What is the scale factor in the dilation?
Answer: 6
Step-by-step explanation:
can u help me on this pl
Answer:
B) [tex]9d^8[/tex]
Step-by-step explanation:
To find the expression equivalent to [tex](3d^4)^2[/tex], we must simplify the given expression. This can be done by applying an exponent rule:
[tex](a*b)^x=a^xb^x[/tex]
In the context of our problem, we would have:
[tex](3*d^4)^2[/tex]
Therefore, when that exponent is distributed, we get:
[tex](3^2d^8)[/tex]
Simplified, we have:
[tex]9d^8[/tex]
Pls help me pls....
Choices are in the pic pls...
I’ll mark as Brainiest and that’s a promise
Answer:d would make the most sense :)
Step-by-step explanation:
