Answers
You have two different situations, but both of them are solved the same way.
Step One
Solve for the 2 equal sides.
21x - 9 = 3x + 27 Add 9 to both sides.
21x = 3x + 27 + 9
21x = 3x + 36 Subtract 3x from both sides.
21x - 3x = 36
18x = 36 Divide by 18
x = 36/18
x = 2
That's not quite the answer
Step Two
Find JK
JK = 21x - 9
JK = 21*2 - 9
JK = 42 - 9
JK = 33 <<<<<<< Answer
Step Three
Solve for y
5y + 11 = 12y - 10 Subtract 5y from both sides.
11 = 12y - 5y - 10
11 = 7y - 10 Add 10 to both sides.
11 + 10 = 7y
21 = 7y Divide by 7
21/7 = y
3 = y
Step Four
Solve for M
M = 12y - 10
M = 12*3 - 10
M = 36 - 10
M = 26 <<<<< Answer
M = 74
Hope this Helped!
;D
Brainliest??
Related Questions
If f(x) = 2x - 8 and g(x) = square root of x - 5, what is (f ^ g)(30).
Answers
The output of the function (f ^ g)(30) in this context refers to first calculating the output of the g function given x = 30, then substituting this output into the f function. With g(30) = sqrt(x - 5) and f(x) = 2x - 8, we find that (f ^ g)(30) = 2.
Explanation:To find (f ^ g)(30), we first need to find the output of the g function when x = 30 and then substitute this output into the f function. This is also known as the composition of functions.
First, let's find the output of the g function when x = 30. Given that g(x) = sqrt(x - 5), for x = 30, g(30) = sqrt(30 - 5) = sqrt(25) = 5.
Next, we substitute this output into the f function. Given that f(x) = 2x - 8, when x = 5, f(5) = 2(5) - 8 = 10 - 8 = 2.
Therefore, (f ^ g)(30) = 2.
Learn more about Composition of Functions here:https://brainly.com/question/30143914
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To find the value of [tex](f ^ g)(30)[/tex], substitute 30 into both f(x) and g(x) to find f(30) and g(30). Then substitute g(30) into f(x) to find the final value.
Explanation:In this mathematics question, you're asked to find the value of [tex](f ^ g)(30)[/tex]where [tex]f(x) = 2x - 8[/tex]and g(x) = square root of x - 5. To calculate (f ^ g)(x), we first need to find the value x in both functions f and g. So, let's find f(30) and g(30) first.
Firstly, substitute x = 30 into f(x). So, [tex]f(30) = 2*30 - 8 = 52[/tex]. Now, substitute x = 30 into g(x). So, g(30) = square root of (30 - 5) = square root of 25 = 5.
Now, f ^ g(30) means we substitute the output of g(30) = 5 into f(x) which gives us [tex]f(5) = 2*5 - 8 = 2.[/tex]
Learn more about Composite Functions here:https://brainly.com/question/30143914
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Two people started from the same point at the same time and traveled in opposite directions. One traveled at 60 mph and the other at 50 mph. How long will it take before the two people are 440 miles apart?
Answers
x = hours
60x + 50x = 440
110x = 440
110x / 110 = 440/110 = 4
It will take 4 hours
60x+ 50x = 440
60(4) + 50(4) = 440
440 = 440
Solve the equation for x, where x is a real number:
-4x^2 + 5x - 7 = 0
Answers
_____
The complex solutions are x = 0.625 ±i√1.359375
x = [ -b ± √(b^2 - 4ac) ] / (2a)
x = [ -5 ± √((5)^2 - 4(-4)(-7)) ] / ( 2(-4) )
x = [-5 ± √(25 - (112) ) ] / ( -8 )
x = [-5 ± √(-87) ] / ( -8)
Since √-87 is nonreal, there are no real solutions to the given equation.
The price of a pair of jeans at a store increased by 25% to $40. Find the price of the pair of jeans before the increase
Answers
25&=0.25
0.25x40=10
Now all you gotta do it’s
40-10=30
You subtract becaus le they ask you to find the price before it was increased so that why you gotta subrtract it
helppppppppppppp stat
Answers
Which statements correctly describe the solid figure? Check all that apply.
It is an octagonal prism.
It is an octahedron.
It is oblique.
It is a Platonic solid.
It is a convex polyhedron.
Answers
A. It is an octogenarian prism.
C. It is oblique.
E. It is a convex polyhedron.
It is oblique.
It is a convex polyhedron.
Choose the equation of a line in standard form that satisfies the given conditions. perpendicular to 4x + y = 8 through (4, 3) A. x − 4y = −8 B. x + 4y = 16 C. 4x − y = 11 D. 4x + y = 19
Answers
Choose the equation of a line in standard form that satisfies the given conditions. perpendicular to 4x + y = 8 through (4, 3)
4x + y = 8-----> y=-4x+8-----> the slope m is -4
we know that
if two lines are perpendicular
then
m1*m2=-1
m1=-4
so
m2=1/4
with m=1/4 and point (4,3)
find the equation of the line
y=mx+b
3=(1/4)*4+b-----> 3=1+b-----> b=2
y=(1/4)*x+2------> (1/4)*x-y=-2-----> multiply by 4----> x-4y=-8
the answer is the option
A. x − 4y = −8
What is the formula for margin of error?
Answers
Formula for E is:
Critical Value x Standard Deviation / (Square Root of Sample Size)
[tex]E=critical* \frac{s}{ \sqrt{n} } [/tex]
The critical value is determined by the type of test that is to be used for the given scenario and the confidence level.
Answer:
ME=z×s/√n
Step-by-step explanation:
Basically the answer is C.
(Giving Brainliest)
what is the solution to...
[tex]|x| +19 \leqslant 3[/tex]
Answers
_____
On the graph, solutions correspond to values of x where the red line is in the blue region. (There are none.)
when you multiply 2/3 by a fraction less than one, how does the product compare to the factors. Explain.
please
Answers
This is because you are multiplying two fractions which will make your answer a fraction of a fraction.
Evaluate C(7, 7).
A: 0
B: 1
C: 7
If you can, could you please explain how you got your answer. These problems honestly don't make any sense to me and I'm turning towards here as a last resort. Thanks in advance.
Answers
C(n, k) = n!/(k!×(n-k)!)
where the "!" indicates the factorial, the product of all positive integers less than or equal to the given one.
Then C(7, 7) = 7!/(7!×0!) = 1/0!
You are supposed to know also that 0! ≡ 1, so C(7, 7) = 1.
This is the number of ways you can choose 7 objects from a pool of 7 objects without regard to order. (You can do it one (1) way: choose all of them.)
The appropriate choice is ...
B: 1
Answer:
Answer = 1
Step-by-step explanation:
American cheese 0.45 to 4.26 what is the percent increase
Answers
0.45 ------> 100%
4.26 ------> x
Clearing x we have:
x = (4.26 / 0.45) * (100)
x = 946.6666667%
Thus, the percentage of growth is:
946.6666667 - 100 = 846.6666667
Rounding:
846.7%
Answer:
the percent increase is:
846.7%
hey can you please help me posted picture of question
Answers
A horizontal shift is indicated by addition/subtraction to x rather than the function.
A right shift is indicated by subtracting the number from x. So a right shift of F(x) will be indicated by F(x-2)
Thus,
G(x) = F(x-2)
G(x) = (x-2)²
So, the answer to this question is option B
Show that the vector field f(x,y,z)=⟨ycos(−2x),−2xsin(y),0⟩f(x,y,z)=⟨ycos(−2x),−2xsin(y),0⟩ is not a gradient vector field by computing its curl. how does this show what you intended?
Answers
Final answer:
To show that the given vector field is not a gradient vector field, we need to compute its curl. The curl is computed by taking the cross product of the gradient operator with the vector field. By computing the partial derivatives and simplifying, we find that the curl of the given vector field is not zero, which indicates that it is not a gradient vector field.
Explanation:
To show that the vector field is not a gradient vector field, we need to compute its curl. The given vector field is f(x,y,z) = <ycos(-2x), -2xsin(y), 0>. The curl of a vector field is defined as the cross product of the gradient operator with the vector field. In this case, the curl of f(x,y,z) is computed as:
curl(f) = ∇ × f = (∂f_z/∂y - ∂f_y/∂z)i + (∂f_x/∂z - ∂f_z/∂x)j + (∂f_y/∂x - ∂f_x/∂y)k
By computing the partial derivatives and simplifying, we find that:
∂f_z/∂y = 0∂f_y/∂z = 0∂f_x/∂z = 0∂f_z/∂x = 2ycos(-2x)∂f_y/∂x = 0∂f_x/∂y = -2sin(y)Substituting these values back into the curl formula, we get:
curl(f) = (2ycos(-2x))i + 0j + (-2sin(y))k
This shows that the curl of the vector field is not zero, which means the vector field is not a gradient vector field.
{ x - y = 4 3x - 6y = -12 graph
Answers
y = 4
You can get this by graphing each equation and looking for the point of intersection.
If pluto's average distance is approximately 100 times mercury's average distance, how many units on the logarithmic scale is pluto from mercury?
Answers
The default base for logarithms is 10, so saying that something is 2 units means that we are raising the base 10 to the power of 2.
[tex]10^2=100[/tex]
Written as a logarithm, this would be:
[tex]log_{10}100=2[/tex]
Whatever number you plug into the function, the answer will be whatever power the base needs to be raised to in order to equal the original number.
For example:
[tex]log_{2}8=3[/tex]
because
[tex]2^3 = 8[/tex]
If the mean waiting time for the next arrival is 12 minutes, what is the median waiting time? 8.3 minutes 12 minutes 9.1 minutes 7.2 minutes
Answers
Since the mean waiting time is 12 minutes, the median waiting time would also be 12 minutes.
Here's how we can find the median waiting time:
Since the mean waiting time is 12 minutes, it means that if you were to add up all the waiting times of different arrivals and divide by the number of arrivals, you would get 12 minutes.
Now, for the median waiting time, we're looking for the value that falls exactly in the middle of all the waiting times.
If the distribution is symmetrical, which is often the case with waiting times, the mean and median will be the same.
(4k^4 + 2 - 3k) + (5k^4 + k - 8)
Answers
You can only add values that have the same terms
4k^4 + 5k^4 = 9k^4
-3k + k = -2k
-8 + 2 = -6
The answer is 9k^4 - 2k - 6
Hope this helps!
= 4k^4 + 2 - 3k + 5k^4 + k - 8
= 9k^4 -2k -6
The simplest form is 9k^4 -2k -6
WILL GIVE BRAINLIEST
An oil company fills 1 over 10 of a tank in 1 over 5 hour. At this rate, which expression can be used to determine how long will it take for the tank to fill completely?
1 over 5 ⋅ 10 hours
1 over 10 ⋅ 5 hours
1 over 5 ⋅ 1 over 10 hours
5 ⋅ 10 hours
Answers
Answer:
Option A. 1 over 5. 10 hours
Step-by-step explanation:
This question can be solved by the unitary method.
∵ Oil company fills [tex]\frac{1}{10}[/tex] of a tank in the time = [tex]\frac{1}{5}[/tex] hurs
∴ Full tank can be filled in the time = [tex]\frac{\frac{1}{5} }{\frac{1}{10} }[/tex] hours.
= [tex]\frac{1}{5}\times 10[/tex]
Therefore, the expression that can be used to determine the time that it will take to fill the tank completely will be Option A.
List all integers between -15 and 25 that are congruent to 3 mod (11)
Answers
3 is the first trivial choice since "three goes into 11 zero times with three left over" so
11 × 0 + 3 = 3
11 × 1 + 3 = 14
11 × 2 + 3 = 25
For the negative ones we want,
11 × -1 + 3 = -8
The numbers of rooms for 15 homes recently sold were: 8, 8, 8, 5, 9, 8, 7, 6, 6, 7, 7, 7, 7, 9, 9. what is the sample standard deviation?
Answers
8, 8, 8, 5, 9, 8, 7, 6, 6, 7, 7, 7, 7, 9, 9
to get the standard deviation we use the formula for variance given by:
σ²=[Σ(x-μ)²]/(n-1)
σ² is the variance
μ is the mean
The mean of the data will be:
μ=(8+8+8+5+9+8+7+6+6+7+7+7+7+9+9)/15=7.4
The variance will be found as follows:
σ²=[(8-7.4)²×4+(5-7.4)²+3×(9-7.4)²+5×(7-7.4)²+2×(6-7.4)²]/(15-1)
σ²=1.4
thus
σ=√1.4=1.1183
Hence, the sample standard deviation is:
1.1832
Step-by-step explanation:The data is given by:
8, 8, 8, 5, 9, 8, 7, 6, 6, 7, 7, 7, 7, 9, 9.
The mean of these data points is given by:
[tex]Mean(x')=\dfrac{8+8+8+5+9+8+7+6+6+7+7+7+7+9+9}{15}\\\\i.e.\\\\Mean(x')=\dfrac{111}{15}\\\\i.e.\\\\Mean(x')=7.4[/tex]
Now,
x x-x' (x-x')²
8 8-7.4=0.6 0.36
8 8-7.4=0.6 0.36
8 8-7.4=0.6 0.36
5 5-7.4= -2.4 5.76
9 9-7.4=1.6 2.56
8 8-7.4=0.6 0.36
7 7-7.4= -0.4 0.16
6 6-7.4= -1.4 1.96
6 6-7.4= -1.4 1.96
7 7-7.4= -0.4 0.16
7 7-7.4= -0.4 0.16
7 7-7.4= -0.4 0.16
7 7-7.4= -0.4 0.16
9 9-7.4=1.6 2.56
9 9-7.4=1.6 2.56
∑(x-x')²=19.69
Now the variance of the sample population is given by:
[tex]Variance=\dfrac{\sum (x-x')^2}{n-1}[/tex]
where n is the number of data points.
Here n= 15
Hence, n-1=14
Hence, we get:
[tex]Variance=\dfrac{19.6}{14}\\\\i.e.\\\\Variance=1.4[/tex]
We know that the standard deviation is the square root of the variance.
i.e.
[tex]Standard\ deviation=\sqrt{1.4}\\\\i.e.\\\\Standard\ deviation=1.1832[/tex]
The base of an isosceles triangle is 7 cm longer than the legs. Find the legs if the perimeter of the triangle is 43 cm.
Answers
43 cm = L + L + (L +7 cm)
36 cm = 3L
12 cm = L
The length of the legs is 12 cm.
This is a priority! The equation of a parabola is 1/16 (y+3)^=x+4 what are the coordinates of the focus?
Answers
1. You have the following equation of a parabola:
1/16(y+3)^2=x+4
2. Rewriting the equation of the parabola, you have:
(y+3)^2=16(x+4)
3. The vertex of the parabola is:
(h,k)=(-4,-3)
3. Now, you must find the coefficient of the unsquared part, as below:
4p=16
p=16/4
p=4
4. As you can see, the y part is squared and p is positive. This means that the parabola that opens to the right.
5. The focus of the parabola has to be 4 units to the right of the vertex. Therefore, the focus is:
(0,-3)
The answer is: (0,-3)
A cylinder has a height of 16 cm and a radius of 5 cm. A cone has a height of 12 cm and a radius of 4 cm. If the cone is placed inside the cylinder as shown, what is the volume of the air space surrounding the cone inside the cylinder? (Use 3.14 as an approximation of .) 452.16 cm3 840.54 cm3 1,055.04 cm3 1,456.96 cm3 NextReset
Answers
So,
Volume of air = Volume of cylinder - Volume of cone
[tex]= \pi r^{2}h- \frac{1}{3} \pi r^{2}h \\ \\ =3.14(5)^{2}(16)- \frac{1}{3}(3.14) (4)^{2}(12) \\ \\ =1055.04[/tex]
Thus, the volume of the air surrounding the cone and inside the cylinder will be 1055.04 cubic centimeter
cylinder = pi * r * r * h
cone = pi * r * r * h/3
substitute the values;
The volume of air is equal to 1055.05cu.cm
Fill in the blank 300mm =___m
Answers
Final answer:
To convert 300mm to meters, divide 300 by 1000 because there are 1000 mm in a meter, resulting in 0.3 meters.
Explanation:
To convert millimeters to meters, we use the conversion factor that 1000 mm equals 1 m. Therefore, to convert 300mm to meters, you divide 300 mm by 1000 because there are 1000 mm in a single meter. So, let's carry out the calculation:
300 mm ÷ 1000 = 0.3 m
Thus, 300 mm is equal to 0.3 meters.
Express Express 0.45 as a percent
Answers
To change 0.45 to a percent, we can move the decimal point 2 places to the right and add the percent sign.
If we move the decimal 2 places to the right, we will end up with 45 and then we will add the percent sign and it will become 45%
Therefore, 0.45 to a percent is 45%
A cylindrical can of cat food has a diameter of 3.5 inches and a height of 1.25 inches. A second brand of cat food is packaged in a cylindrical can with a radius of 1.2 inches and a height of 1.25 inches. What is the difference between the volumes of the cans? Show your work.
Answers
When the sample size and sample standard deviation remain the same, a 99% confidence interval for a population mean, µ will be narrower than the 95% confidence interval for µ?
Answers
In essence, you are casting a wider net which leads to the higher level of confidence. Imagine if there was a 100 mile stretch of straight land, and somewhere on this line was a special rock that you are looking for. You would be 100% confident if you said "the rock is somewhere on that piece of land", and less confident the more you shrunk the interval.
Using the equation for the margin of error, it is found that the 99% confidence interval will be wider than the 95% confidence interval for µ.
What is the margin of error of a confidence interval?The margin of error of a confidence interval is given by an equation in the following format:
[tex]M = t\frac{s}{\sqrt{n}}[/tex]
In which:
t is the critical value, which increases as the confidence level increases.s is the standard deviation of the sample.n is the sample size.In this problem, a 99% confidence interval will have a higher value of t than a 95% confidence interval, hence a higher margin of error, and thus will be wider.
You can learn more about the margin of error of a confidence interval at https://brainly.com/question/25779324
Michael has $1.95 totally in his collection, consisting of quarters and nickels. The number of nickels is three more than the number of quarters. How many nickels and how many quarters does Michael have?
Answers
9 Nickels = $0.45
Total= $1.95
Answer is 6 quarters and 9 nickels.
If you wanted to vertically stretch the graph of F(x) = |x| by five units, what would the equation of the new function, G(x), be?
A. G(x)=|x|-5
B. G(x)=|x+5|
C. G(x)=5|x|
D.G(x)=|5x|
mcr apex
Answers
Solution:
The Preimage function is , F(x)=|x|
Consider a point (a,b) on the function, F(x)=|x|. it means
b=|a|-----(1) satisfies the function.
Now the function F(x)=|x| is vertically stretched by 5 units.It means
x=a , y= b+5
x=a, b=y-5
So, putting the value of a and b in equation (1).
y-5=|x|
y= |x| + 5 is vertical stretch of y= |x| by 5 units.