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! :)
which of the following is an irrational number
Answer:
the last sum is the only irrational number
Step-by-step explanation:
sum 1 = 12
sum 2 = 1
sum 3 = 0
What is the slope of a line perpendicular to the line with a slope of 35? Question 1 options: 35 −35 53 −53
Answer:
35
-35
because perpendicular lines have the opposite slope
Is the order pair (3,-4) a solution of the system of linear equations x+y=1 and -6x-3y=-3
↝ A single coordinate point must make both equations true in order for the point to be a solution.
Substitute x = 3 and y = -4 in both equations.
[tex]3-4=1\\-1=1[/tex]
The equation isn't true. Therefore, this isn't the solution for the system.
[tex]-6(3)-3(-4)=-3\\-18+12=-3\\-6=-3[/tex]
The equation isn't true for this one.
Conclusion ↝ The (3,-4) isn't the solution.
What is y? make sure to show all your work for full points
Explain how both predators and prey can be carnivores or herbivores
Answer:
Predators can sometimes eat vegetation. For example, dogs often eat grass and raccoons eat fruits and vegetables. Herbivores also sometimes eat meat in dire conditions. Sometimes rabbits can eat meat to survive.
Step-by-step explanation:
3. Find the rate of change in the represented table.
Explanation:
Pick two columns from the table to form the (x,y) points.
I'll pick the last two columns, since everything is positive here. So we have the points (2, 17) and (4, 45)
Apply the slope formula to those points
m = (y2 - y1)/(x2 - x1)
m = (45 - 17)/(4 - 2)
m = (28)/(2)
m = 14
The rate of change is 14.
someone answer dis asap
Answer:
6-(4+n)
n=6-4
n=2
it may be answer
Answer:
- 17
Step-by-step explanation:
[tex]3m - (m { }^{2} + n \:) \\ = (3 \times 2) - (2 { }^{2} + 19) \\ = 6 - (4 + 19) \\ =6 - 23 \\ = - 17 [/tex]
I need help with this question asap. can someone plz help me:
5. What is the equation in slope-intercept form for the graph of the line shown?
Answer:
[tex]5. \: y = - 2x - 1 \\ 6. \: y - 4 = 3(x + 2) \\ 7. \: the \: cost \: to \: rent \: the \: game \: center[/tex]
Please solve. I will mark as brainliest if right.
Answer:
Try B
Step-by-step explanation:
Solve for x: 5x + 4 = 2(x - 5) *
1)-4 2/3
2)-3
3)-2.
4)-1/3
Answer:
14/-3 or -4 2/3
Step-by-step explanation:
First distribute the 2 into the parenthesis. Then Isolate the variable by subtracting 2x from both sides to get.
3x+4=-10
Next subtract 4 from both sides to get.
3x=-14
To isolate x divide by three on both sides to get.
x=-4 2/3
Brailiest Plz.
Since an instant replay system for tennis was introduced at a major tournament, men challenged 1425 referee calls with the results that 412 of the calls were overturned. Women challenged 739 referee calls, and 221 of the calls were overturned. Use a 0.05 significance level to test the claim that men and women have equal success in challenging calls. Test the claim using a hypothesis test. Consider the first sample to be the sample of male tennis players who challenge referee calls and the second sample to be the sample of female tennis players that challenged referee calls. What are the null and alternative hypotheses for the hypothesis test.
Answer:
CI = (-0.0445, 0.0225)
there is no sufficient evidence to men and women have equal success in challenging calls
Step-by-step explanation:
Sample size for men; n1 = 1425
Number of success for men; x1 = 412
Sample size for women; n2 = 739
Number of success for women; x2 = 221
Significance level; α = 0.05
Sample proportion for men;
p1 = x1/n1 = 412/1425
p1 = 0.2891
Sample proportion for women;
p2 = x2/n2 = 221/739
p2 = 0.2991
From tables, z-score at significance level of 0.05 is 1.96.
Formula for margin of error is;
E = z√[(p1(1 - p1)/n1) + (p2(1 - p2)/n2)]
Plugging in the relevant values;
E = 1.96√[(0.2891(1 - 0.2891)/1425) + (0.2991(1 - 0.2991)/1425)]
E = 1.96 × 0.0170687
E = 0.0335
Coordinates of the confidence interval will be;
[(p1 - p2) - E], [(p1 - p2) + E]
[(0.2881 - 0.2991) - 0.0335], [(0.2881 - 0.2991) + 0.0335]
CI = (-0.0445, 0.0225)
This means that the confidence interval contains 0 since it's between (-0.0445 and 0.0225). Thus we can conclude that there is no sufficient evidence to men and women have equal success in challenging calls
JUST DO IT PKEASE DIWOSJJDNKA
are the two triangles below similar please let me know fast
Answer:
no because there are not two pairs of congruent corresponding angles
Answer: I think the answer is A but I’m not 100% positive
Step-by-step explanation:
A local clothing store has hats on sale at 4 hats for $20. At this rate, how many hats can be bought with $160?
Answer:
32 hats
Step-by-step explanation:
20÷4=5 so now you know a hat is 5 dollars so then you do 160÷5= 32
Which lists the angles angles from least to greatest .
Answer:
answer A
Step-by-step explanation:
if you can look at it closely it you can see that the lines are closer together with P and you go to R thay are abit further apart and Q is the furthest apart
A 3-gallon bottle of fabric softener costs $57.12. What is the price per cup?
Answer:
0.60, or 60 cents
Step-by-step explanation:
2 cup=1 pint
4 cups , 2 pint= 1 quart
32 cups , 8 pints, 4 quart =1 gallon
32*3=96
57.12/96=0.595, 0.60
−7+11p=3p−47
what is p?
Answer:
p= -5
Step-by-step explanation:
because UwU and also −7+11p=3p−47
−7+11p=3p+−47
11p−7=3p−47
11p−7−3p=3p−47−3p
8p−7=−47 8p−7+7=−47+7
8p=−40 8p /8 = −40 /8
Answer:
P= -5
Step-by-step explanation:
Solve the following equation:
3x^2=-12
A. X=2
B. X=-2
C. No real solution
D.x=+2
https://socratic.org/questions/how-do-you-solve-3x-2-12
go to this site
Answer:
X= -1.333333333 and so on.
Step-by-step explanation:
3X^2 is 9X
So 9X= -12
Divide both sides by 9 to create 0 pairs
Answer is X= -1.3333333333
Will mark brainliest!!!! Please answer correctly, the questions are in the picture.
Answer:
1. A
2. B
Step-by-step explanation:
1. Only option A creates that graph, the other options are either backwards or are on top of each other.
2. Because the two lines are parallel, and do not intersect at all, there will be 0 solutions.
10% of that sale price is $10.5 so after using the coupon the sale price is
What is half of 4 5/8
Answer:
2.3125
Step-by-step explanation:
Answer:
[tex]2\frac{5}{16}[/tex]
Step-by-step explanation:
[tex]4\frac{5}{8}=\frac{37}{8}[/tex]
[tex]\frac{37}{8}:2=\frac{37}{16} = 2\frac{5}{16}[/tex]
heyyyy help me out please? don’t scam please!
Answer:
D
Step-by-step explanation:
I think it is D, pretty sure
Consider the function below. Find f(x) = 32.
f(x) = 3x-1
Answer:
f(32) = 95
Step-by-step explanation:
f(32) = 3(32)-1
f(32) = 96 - 1
f(32) = 95
Hope this helped!
Consider the equation 6x+3y=9. Which equation, when graphed with the given equation, will form a system with infinitely
many solutions?
y+ 2x - 3
Oy+ 2x - 9
Oy - 2x+3
Oy--2x9
Answer:
y=-2x+3
Step-by-step explanation:
[tex]6x+3y=9\\ \\3y=-6x+9\\y=-2x+3[/tex]step 1: subtract 6x on both sides step 2: divide all numbers by 3 to get y by itself.Maria fills up her car at the gas station for $38.24 and purchases a drink for $1.99. If she pays with a $50 bill, how much change will Maria receive
Answer:
big money
Step-by-step explanation:
There are 6 triangles and 10 circles. What is the simplest ratio of triangles to circles?
Answer:
6:10
Step-by-step explanation:
Answer:
3:5
Step-by-step explanation:
half it
i promise it is right
Write an equation in point-slope form of the line
that passes through (6,2)
Answer:
Can't answer this, need 2 points or more information
Step-by-step explanation:
I need help with this
Answer:
no
Step-by-step explanation:
no
Mary is 21 years old. Her age is 9 years more than 3 times Harry’s age. Which equation can be used to determine x, Harry’s age in years?
Answer: 21=3x+9 hope i helped
Answer:
4 is his age
Step-by-step explanation:
