Answer: 120!
Step-by-step explanation:
6 + 6 = 12
12 x 10 = 120
If the sum is twice the sum of 6 you would add 6 twice and then you would multiply 12 times 10.
Hope i helped! <333
At a charity fundra, adult tickets were sold for $8 each and children's tickets were sold for $2 each. Write an algebraic expression for the total amount of money raised from the sale of tickets. How much money was raised if the fundraiser sold 235 adult tickets and 372 children's tickets?
Answer:
$2624
Step-by-step explanation:
8x235=1880
2x372=744
1880+744=2624=$2624
PLEASE ANSWER ASAP!!!
Sammy is making a Cartesian plane in math class. She needs to draw all of the quadrants. How many quadrants are in a Cartesian plane?
a.) 3
b.) 2
c.) 4
Answer:
i think she should draw 3
show that:sin60=2tan60/1+tan²60
Answer:
Step-by-step explanation:
2 tan(60) = 2 * (sqrt(3)/2 = sqrt(3)
1 + tan^2(60) = 1/cos^2(60) = 1//1/4 = 4
The answer is going to look a little convoluted but it should be correct.
The answer so far is sqrt(3) /4
sin(60) = sqrt(3)/2
of the 4, two is needed to get sqrt(3)/2
So far then we have sin(60)/2
If we multiply by 2 as in (sin(60)/2) we get just sin(60)
2* sqrt(3) /4 then = 2 sin(60)
The top of a sailboat mast is 22 feet above the water surface. The bottom of the sailboat is 3 feet below the water surface. What is the difference in elevation?
Answer:
22 - (-3) = 22 + 3 = 25 ft.
Solve 2a5b=-19
3a+5b=9
Answer:
a=28, b=-15
Step-by-step explanation:
[tex]Method\ by\ linear\ combinaisons\\\left\{\begin{array}{ccc|c|c|}2a+5b&=&-19&-1&3\\3a+5b&=&9&1&-2\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}a&=&28\\5b&=&-75\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}a&=&28\\b&=&-15\\\end{array}\right.\\[/tex]
Question in photo. Explain it too
Step-by-step explanation:
it is easy and I think i explain it in better way.
Please help me..
Here is a data set:
1 2 3 3 4 4 4 4 5 5 6 7
What happens to the mean and standard deviation of the data set when the 7 is changed to a 70?
Your answer:
The mean is 4 because it is in the middle an it is used the most in the data set.
The mean shift to the right side of the data set and the standard deviation is increased.
What is mean?It is defined as the single number that represents the mean value for the given set of data or the closed value for each entry given in the set of data.
It is given that:
The data set is:
1 2 3 3 4 4 4 4 5 5 6 7
The mean of the data = ∑x/n
The mean of the data = 4
The standard deviation of the data set = 1.58
If data changed:
1 2 3 3 4 4 4 4 5 5 6 70
The mean of the data = 9.25
The standard deviation of the data set = 18.36
Thus, the mean shift to right side of the data set and the standard deviation is increased.
Learn more about the mean here:
https://brainly.com/question/22871228
#SPJ2
If x varies directly as y, and x=45 when y=60, find x when y=36.
Answer:
x=31
Step-by-step explanation:
When x=45 y=60
And when y=36
First find how y became 36For that let's take the amount as Z(to find how much was decreased)
60-z=36
60 =36+z
60-36=z
14=z
Now subract 14 from 4545-14
31
Therefore when y=36 x=31
Hope you got it
If you have any question just ask me
And if you think this is the best answer please mark me as brainliest
Find HI please will mark brainliest for first answer if correct
just trying hope that helps
Determine whether each equation is always, sometimes, or never true.
2x + 7 - x = 3 + x + 4
Always
Sometimes
Never
Empty Set
I said never but I want see if thats right
-9 - 8x = -2(7 + 4x) pls help it won’t
Answer:
no solution
Step-by-step explanation:
Given
- 9 - 8x = - 2(7 + 4x) ← distribute
- 9 - 8x = - 14 - 8x ( add 9 to both sides )
- 8x = - 5 - 8x ( add 8x to both sides )
0 = - 5 ← this is not possible
This indicates the equation has no solution
x-9 divided by -3 = 5
Answer:
X = -6 is the answer
Please Help!!!
Determine the intervals on which the function is increasing, decreasing, and constant.
Answer:
C. Increasing on all real numbersStep-by-step explanation:
As per graph, the function is increasing at all intervals.
Correct choice is C
Answer:
Increasing on all real numbers
Step-by-step explanation:
The line is a polynomial curve and it's increasing at all values
It has one y intercept alsoso option C is correct
Is 0.71 a integer ?
explain pi
its been a while since ive been on brainly <3
points , pi represents point that you can earn .
The product of two irrational number is always __-
Answer:
[tex]irrational \: or \: rational \\ for \: exmple \sqrt{2} \times \sqrt{2} = 2 \\ thnk \: you[/tex]
If 246 is a multiple of a number, then
123 is a multiple of the number.
Answer:
This is true.
Help! can someone help me on this question I would really appreciate it ;) ♡
Answer:
80 degrees
Step-by-step explanation:
they are adjacent angles -
115-35=80
GBE=80 degrees
The other person is correct. This is what the drawing looks like when we mark the angles given to us.
Plz plz plz plz plz plz
Help
Answer:
OK mate don't freak out its easy
First things first x and y are height and base and 10cm is hypotenuse.
40degree is the angle
Now.
The sin angle is an trigonometric angle which deals with height and hypotenuse.
It's formulae is...... Sin angle =height /hypotenuse
So sin 40 = x/10
X= 10 * sin 40
X= 10*0.64
Hence x=6.4 cm
Remainder sin 40 is 0.64
Again
The cos angle is an trigonometric angle which deals with base and hypotenuse
It's formulae is...... Cos angle =base /hypotenuse
So cos 40 = y/10
Y= cos 40 *10
Y= 0.76*10
Hence y = 7.6cm
Remainder cos 40 = 0.76.
Thank you
Answer:
do not worry it is 63,9 degrees
For his birthday, Torin got $25 more from his grandmother than from his cousin.
gave him $10 less than his cousin. Torin received $291 total. How much did he receive
from his cousin?
Answer:
11.69 or 256
Step-by-step explanation:
291 divided by equals 11.69
And 291 - 25 - 10 = 256
Why is division often referred to as repeated subtraction?
Answer:
because the same number is subtracted from another numberber until it hits zero or smaller than the number subtracted
Step-by-step explanation:
trust me bro
hope this helped homie
Answer:
⇨Because Repeated subtraction is a method of subtracting the equal number of items from a larger group.
Ťøp❶✍☺Hope its helpful
what is 2.75+(-2)+(-5.25)
Answer:
-4.5. 2.75+(2)+(-5.25) = -4.5. hope this helps
Step-by-step explanation:
- Zombie
How many ounces of a 15% alcohol solution must be mixed with 4 ounces of a 20% alcohol solution to make a 17% alcohol solution?
Answer:
6 ounces
Step-by-step explanation:
Let x = the number of ounces of the 15% alcohol solution needed to be mixed with the 4 ounces of 20% alcohol solution to obtain the 17% alcohol solution.
After converting the percentages to their decimal equivalents, set up the necessary equation as follows:
0.15x+0.20(4) = (x+4)(0.17) Simplify and solve for x.
0.15x+0.8 = 0.17x+0.68 Subtract 0.15x from both sides.
0.8 = 0.02x+0.68 Now subtract 0.68 from both sides.
0.12 = 0.02x Finally, divide both sides by 0.02
x = 6
You need to mix 6 ounces of 15% alcohol solution with 4 ounces of 20% alcohol solution to obtain 10 (x+4)ounces of 17% alcohol solution.
Answer:
Therefore 2 ounces of 11% alcohol solution must be mixed with 4 ounces of 20%alcohol to make a 17%alcohol solution
Step-by-step explanation:
Let x ounces of 11% alcohol must be mixed with the 2 ounces of 20% alcohol.
The amount of alcohol in 4 ounces solution is= ounces
= 0.8 ounces
The amount of alcohol in x ounces solution is= ounces
= 0.11 x ounces
Total amount of alcohol is = (4+x) ounces
According to the problem,
Therefore 2 ounces of 11% alcohol solution must be mixed with 4 ounces of 20%alcohol to make a 17%alcohol solution
⚠️ASAP⚠️Draw a line representing the "rise" and a line representing the "run" of the line. State
the slope of the line in simplest form.
Answer:
test
test
test
test
test
24÷2[70÷5{4+(12-(12-8÷6×3)}]
Step-by-step explanation:
24÷2[70÷5{4+(12-(12-8÷6×3))}]
12[14{4+(12-(12-4))}]
12[14{4+(12-8)}]
12[14{4+4}]
12[14{8}]
12[112]
1344
What is 965.000.000,000,000 in scientific notation?
The Scientific notation for above value is :
[tex] \boxed{ \boxed{9.65\times 10 {}^{14} }}[/tex]
1/1-cosα - 1/1+cosα=2cotα• cosecα
Answer:
see explanation
Step-by-step explanation:
Using the identities
1 - cos²x = sin²x
cotx = [tex]\frac{cosx}{sinx}[/tex] , cosecx = [tex]\frac{1}{sinx}[/tex]
Consider the left side
[tex]\frac{1}{1-cos\alpha }[/tex] - [tex]\frac{1}{1+cos\alpha }[/tex]
= [tex]\frac{1+cos\alpha - (1-cos\alpha )}{(1-cos\alpha )(1+cos\alpha )}[/tex]
= [tex]\frac{1+cos\alpha -1+cos\alpha }{1-cos^2\alpha }[/tex]
= [tex]\frac{2cos\alpha }{sin^2\alpha }[/tex]
= [tex]\frac{2cos\alpha }{sin\alpha }[/tex] × [tex]\frac{1}{sin\alpha }[/tex]
= 2cotα . cosecα
= right side , thus verified
what is the slope of the equation y= -3/4x+2 ?
Answer: Slope = -3/4
Step-by-step explanation:
Background information
The given equation [y = -3/4x + 2] is in the form of slope-intercept form of linear equation.
The slope-intercept form of a linear equation is where one side contains just [y]. So, it will look like: y = mx + b where [m] is the slope and [b] is the y-intercept.
Match the given equation with the base form of the equation
y = (-3/4)x + 2
y = m x + b
Finalize the match result
m = -3/4
b = 2
Therefore, the slope of the equation [y = -3/4x + 2] is [tex]\boxed{-\frac{3}{4} }[/tex]
Hope this helps!! :)
Please let me know if you have any questions
Can someone help mee?
Answer:
11x+3+8x+6=180(Linear pair)
19x+9=180
19x=171
x=9°
The proportion of values of X between -3 and 8, if ∼(5,4.2)
X
∼
N
(
5
,
4.2
)
. Round your answer to three decimal places.
If I'm understanding the question correctly, you're saying that X is a random variable following a normal distribution with mean 5 and standard deviation 4.2, and you want to find the proportion of the distribution that lies in the interval (-3, 8). In other words, the probability
P(-3 < X < 8)
Transform X to Z, which follows the standard normal distribution with mean 0 and standard deviation 1, using the rule
X = µ + σZ ==> Z = (X - µ)/σ
where µ and σ are the mean and standard devation of X, respectively.
We have
P(-3 < X < 8) = P((-3 - 5)/4.2 < (X - 5)/4.2 < (8 - 5)/4.2)
… ≈ P(-1.904 < Z < 0.714)
… ≈ P(Z < 0.714) - P(Z < -1.904)
… ≈ 0.762 - 0.028 ≈ 0.734
The proportion of values of X between - 3 and 5 is 0.734
The expression ∼(5,4.2) gives the mean and standard deviation of X
Mean, μ = 5
Mean, μ = 5Standard deviation, σ = 4.2
Using the normal distribution :
The proportion of values of X is given as :
z = (x - μ) / σ
P(Z < z) - P(Z < z)
P(Z < (x - μ) / σ) - P(Z < (x - μ) / σ)
For X = - 3 and x = 8
P(Z < (8 - 5) / 4.2) - P(Z < (-3 - 5) / 4.2)
P(Z < 0.7143) - P(Z < - 1.90476)
0.76248 - 0.0284 = 0.73408
Hence, the proportion of values of X between - 3 and 5 is 0.734
Learn more : https://brainly.com/question/17756962?referrer=searchResults
