Answer:
x= [tex]-\frac{1}{14}[/tex]
Step-by-step explanation:
im going to assume the 3x2 mean 3 times 2
Please can y’all help. I’m terrible at maths.
Answer:
x = 49°, and y = 63°
Step-by-step explanation:
Starting with x, you can see that it is in a corner where two lines cross each other. That means that x is equal to the angle on the other side of that intersection, which we are given. x then, is equal to 49°
And with y, You'll notice that is formed with two lines, a horizontal one and and a diagonal one. At he bottom of the shape you can see another horizontal one intersecting with the same diagonal one. Notice also that the two lines use the ">" symbol, noting that the lines are parallel. Because those lines are parallel, the angles between each of those and the diagonal one are the same. This tells us that y is equal to 63°
Write the equation for the circle with center (2, 4) and radius 7 in standard form
Answer:
Step-by-step explanation:
Let's get the equation first and then look at the circle when it has been graphed.
(x - 2)^2 + (y - 4)^2 = 7^2
(x - 2)^2 + (y - 4)^2 = 49
You will notice that the center of the circle has been marked and it is at (2,4) just as the question required.Another point has been added. It is at (2,11).It is the radius of the circle11 - 4 = 7 which is the radius that has been requested1
What is the measure of A?
The measure of A is: 78°
As the earth revolves around the sun, it travels at a speed of approximately 18 miles per second. Convert this speed to kilometers per second. At this speed, how many kilometers will the earth travel in 2 seconds? In your computations, assume that 1 mile is equal to 1.6 kilometers. Do not round your answer.
Answer:
i dont know have an amazing day
Step-by-step explanation:
be kind ppl
What are the new vertices of quadrilateral ABCD if the quadrilateral is reflected across the x-axis?
Question 12 options:
A)
A′ = (–5,–4), B′ = (–5,2), C′ = (–1,5), D′ = (–1,–2)
B)
A′ = (–4,–5), B′ = (2,–5), C′ = (5,–1), D′ = (–2,–1)
C)
A′ = (4,5), B′ = (–2,5), C′ = (–5,1), D′ = (2,1)
D)
A′ = (4,–5), B′ = (–2,–5), C′ = (–5,–1), D′ = (2,–1)
Answer:
C.
Step-by-step explanation:
Yuri earns a 12% commission on all of his sales. He sold $4,720 in
merchandise last week. How much was Yuri's commission last week?
Answer: $566.40 ($5,286.40 in total)
Step-by-step explanation: This is a multiplication problem. You multiply .12 by 4,720.
(also, i'm doing your math instead of mine in my math class, so you're welcome)
1. In order to draw a straight vertical line segment that is 4 units long, which point must be connected to (1, 2)?
A. (7,2)
B) (5,2)
C. (2,7)
D. (1,6)
Answer:
D. (1,6)
Step-by-step explanation:
Vertical line segment:
A vertical line segment has fixed x coordinate.
In this question:
Vertical line segment that is 4 units long and is connected to (1,2).
The x-coordinate is x = 1.
The y-coordinate can be y = 2 - 4 = -2 or y = 2 + 4 = 6.
(1,6) is one of the options, so the correct answer is given by option D.
What is the perimeter of this tile? inz 10 in. 8 in. 6 in.
Answer:
24 in
Step-by-step explanation:
Perimeter is the sum of all side lengths
10 in + 6 in + 8 in = 24 in
24 in is the perimeter
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Johann uses 42 ÷ 7 to represent the number of players who are on teams. Explain what 42 ÷ 7 means. Enter a number in each box. 42 ÷ 7 means that [blank] players are on teams in all and that each team has [blank] players.
Answers for these two questions
Answer:
1. a) the square root of 20
2. d) the square root of 52
Explanation:
we can use the formula of pythagoras' theorem, which is a² + b² = c² (with c being the hypotenuse of a right-angled triangle while a and b are its other two sides), to solve these questions.
for the first question, we can place the given values into the equation to get 4² + b² = 6², with b being the unknown here. b is thus equivalent to 6² - 4², or √20.
for the second question, we can get 4² + 6² = c², which is the unknown value in this question. it would be √52.
i hope this helps! :D
calcular el número de lados de aquel poligono cuyo número de diagonales.
moby max help help help help
How many different passwords can be made if it is three letters, followed by two digits, followed by a letter?
(Repetition is allowed.) Use the fundamental counting principle.
Infinitely many passwords can be made.
There are 45,697,600 different passwords.
What is Multiplication?To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Since, Fundamental counting principle states that if there are p ways to do a thing, and q ways to do another thing, and these two things are independent,
Then, there are p x q ways to do both things.
Hence, In this question:
3 letters, each with 26 possible options(ways).
Two digits, each with 10 possible options.
One digit, with 26 possible options.
And, Each digit/letter is independent,
Thus, Number of ways are;
26 x 26 x 26 x 10 x 10 x 26 = 45,697,600
Thus, There are 45,697,600 different passwords are possible,
Learn more about the multiplication visit:
https://brainly.com/question/10873737
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Solve for h.........
the answer is h = -8.2
Help Plis................
Answer:
B should be where C is, C is A, and A is B
The Family Fine Arts Center charges $ 22 per adult and $ 14 per child under 12
years old for its performances. On a recent weekend evening when 551 people
paid admission, the total receipts were $ 9290. How many who paid were
children under 12 years old?
Let A = number of adult tickets, let C = number of child tickets
1. Using the variables A and C, write a system of linear equations that reflect the
above problem.
2. Solve the system of equations for both A and C.
3. How many tickets sold were for children under 12?
Answer:
197 adult tickets and 354 child tickets were sold for the event.
Step-by-step explanation:
Given that the Family Fine Arts Center charges $ 22 per adult and $ 14 per child under 12 years old for its performances, and on a recent weekend evening when 551 people paid admission, the total receipts were $ 9290, to determine how many who paid were children under 12 years old the following calculation must be performed:
22 - 14 = 8
551 x 14 = 7.714
9,290 - 7,714 = 1,576
1,576 / 8 = 197
551 - 197 = 354
197 x 22 + 354 x 14 = X
4.334 + 4.956 = X
Therefore, 197 adult tickets and 354 child tickets were sold for the event.
According to the eScience Lab Manual for Lab 1, Experiment 3, you need to prepare 65 ml of 60% soda/syrup prescription. To do this you can use the 80% soda solution and the syrup solution (0% strength) that you have in inventory. How many mls of soda solution do you need to create this final solution?
Answer:
16.25 mL
Step-by-step explanation:
Since we are mixing from the syrup in the inventory, we can say that the syrup in the inventory must be equal to that in the final solution. Thus, we will use the dilution equation to solve for the Initial volume;
Dilution equation is;
V₁C₁ = V₂C₂
Where;
V₁ is initial volume
C₁ is initial concentration or initial molarity
V₂ is final volume
C₂ is final concentration of final molarity
We are given;
C₁ = 80% = 0.8
C₂ = 60% = 0.6
V₂ = 65 mL
Making V₁ the subject in the dilution equation, we have;
V₁ = (V₂C₂)/C₁
V₁ = (65 × 0.6)/0.8
V₁ = 48.75 mL of inventory syrup
Since we have 48.75 mL of inventory syrup and the dilute solution is 65 ml, then the volume of soda solution required = 65mL - 48.75 mL = 16.25 mL
Which are correct representation of the inequality minus 32X -5 less than 52 minus X select two options
Answer:
The value of X is more than equal to -1.83.
Step-by-step explanation:
We need to find the correct representation of the inequality 'minus 32X -5 less than 52 minus X'
LHS of the inequality will be : -32x-5
RHS of the inequality will be : (52-X)
So,
[tex]-32X-5\leq 52-X[/tex]
Adding X both sides
[tex]-32X-5+X\leq 52-X+X\\\\-31X-5\leq 52[/tex]
Adding 5 to both sides,
[tex]-31X-5+5\leq 52+5\\\\-31X\leq 57[/tex]
Dividing both sides by -31.
[tex]X\geq \dfrac{-57}{31}\\\\X\geq -1.83[/tex]
So, the value of X is more than equal to -1.83.
PLSSS HELP ME thanks :))
that's all , all the best
Jenny has five exam scores of 79,66, 71, 89, and 84 in her biology class. What score does she need on the final exam to have a mean grade of 80?
Round your answer to two decimal places, if necessary. (All exams have a maximum of 100 points.)
Answer:
she needs to get a 99
Step-by-step explanation:
Answer: 76.34
Step-by-step explanation:
79.66 + 71 + 89 + 84 + 76.34 = 400/5 = 80
Convert the following equation into
slope-intercept form.
x + y = -1
y = [? ]x+[ ]
Enter
write the log equation as an exponential equation
Answer:
[tex] \displaystyle {9}^{2x - 1} = 2[/tex]
Step-by-step explanation:
we are given a logarithmic equation
[tex] \displaystyle \log_{9}(2) = 2x - 1[/tex]
we want to rewrite it as exponential equation
remember that,
[tex] \displaystyle\log_{a}(b) = c \iff {a}^{c} = b[/tex]
here our a is 9,b is 2 and c is 2x-1
altogether
our exponential equation is
[tex] \displaystyle {9}^{2x - 1} = 2[/tex]
and we're done!
I need help with this!
9514 1404 393
Answer:
see attached
Step-by-step explanation:
12. The first attachment has the rate of change on each interval. (It is listed at the end of the interval.) It is computed by dividing the difference in length by the corresponding difference in months. The units of rate of change are inches per month.
The baby was growing fastest in the first 3 months.
__
13. The first attachment has the rate of change on each interval. It is computed by dividing the difference in height by the corresponding difference in seconds. The units of rate of change are meters per second. A negative number indicates the elevator is going down.
The second attachment shows a graph of the distance versus time.
_____
I find it convenient to let a spreadsheet do repetitive calculations. I can enter the formula once and copy it where needed. I don't have to worry about the accuracy of the arithmetic, and the result can be formatted to suit the problem requirements. (The basics of most spreadsheet programs can be learned in a few minutes.)
the volume of a sphere is increasing at a rate of 2cm^3/sec. Find the rate of change of its surface area when its volume is 256pi/3 cm^3.
Answer:
The rate of change of the surface area of the sphere is 0.99 cm²/s.
Step-by-step explanation:
The surface area (A) of a sphere is given by:
[tex] A = 4\pi r^{2} [/tex]
If we derivate the above equation with respect to the time we have:
[tex] \frac{dA}{dt} = 4\pi (2r)\frac{dr}{dt} [/tex]
[tex] \frac{dA}{dt} = 8\pi r\frac{dr}{dt} [/tex] (1)
Where:
r: is the radius
We need to find [tex]\frac{dr}{dt}[/tex] and r.
From the volume we can find the radius:
[tex] V = \frac{4}{3}\pi r^{3} = 256 \frac{\pi}{3} cm^{3} [/tex]
[tex] r = \sqrt[3]{\frac{3V}{4\pi}} = \sqrt[3]{\frac{3*256*\frac{\pi}{3}}{4\pi}} = 4 cm [/tex]
And by derivating the volume of the sphere with respect to the time we can calculate [tex]\frac{dr}{dt}[/tex]:
[tex]\frac{dV}{dt} = \frac{4}{3}\pi(3r^{2})\frac{dr}{dt}[/tex]
[tex]\frac{dV}{dt} = 4\pi r^{2}\frac{dr}{dt}[/tex]
[tex] \frac{dr}{dt} = \frac{\frac{dV}{dt}}{4\pi r^{2}} = \frac{2}{4\pi(4)^{2}} = 0.0099 cm/s [/tex]
Now, we can calculate the rate of change of the surface area (equation 1):
[tex] \frac{dA}{dt} = 8\pi r\frac{dr}{dt} = 8\pi*4*0.0099 = 0.99 cm^{2}/s [/tex]
Therefore, the rate of change of the surface area of the sphere is 0.99 cm²/s.
I hope it helps you!
Which statement is true?
A. All squares are similar to each other
B. All rectangles are similar to each other
C. All squares are similar to each other, and all rectangles are similar to each other
D. None is true
f(x) = 2x2 - 5
and
g(x) = 5x + 7
Find
f(g(x)) = [ ? ]x2 + [ ]x +
Answer:
See below
Step-by-step explanation:
What you need to do is put g(x) in for 'x' of f(x)
f(g(x) = 2(5x+7)^2 -5
2 ( 25x^2 + 70x + 49) - 5
= 50x^2 + 140x + 93
5. Solve the following system using Gauss-Jordan Elimination. Indicate all row
operations and show all steps.
3x + 4y + 2z = 3
4x – 2y - 8z = -4
x + y - z= 3
Answer:
(-3,4,-2)
Step-by-step explanation:
Answer:
x=0
Step-by-step explanation:
A random sample of 8 Samsung Galaxy smartphones being sold over the Internet in 2013 had the following prices, in dollars:
249 349 299 249 149 135
199169
Assume the population standard deviation is alpha = 85.
If appropriate, construct a 99.5% confidence interval for the mean price for all phones of this type being sold on the Internet in 2013.
Answer:
The 99.5% confidence interval for the mean price for all phones of this type being sold on the Internet in 2013 is between $140.39 and $309.11
Step-by-step explanation:
Sample mean:
Sum of all values divided by the number of values. So
[tex]S_{m} = \frac{249+349+299+249+149+135+199+169}{8} = 224.75[/tex]
Confidence interval:
We have the standard deviation for the population, so the z-distribution is used.
We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:
[tex]\alpha = \frac{1 - 0.995}{2} = 0.0025[/tex]
Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].
That is z with a pvalue of [tex]1 - 0.0025 = 0.9975[/tex], so Z = 2.807.
Now, find the margin of error M as such
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.
[tex]M = 2.807\frac{85}{\sqrt{8}} = 84.36[/tex]
The lower end of the interval is the sample mean subtracted by M. So it is 224.75 - 84.36 = $140.39
The upper end of the interval is the sample mean added to M. So it is 224.75 + 84.36 = $309.11
The 99.5% confidence interval for the mean price for all phones of this type being sold on the Internet in 2013 is between $140.39 and $309.11
Please help I really need now
a 713
498
215
hope it will help
The required missing values are 6, 0, and -5 respectively in the sum (a).
The required missing values are 4, 11, and -4 respectively in the sum (b).
What is Algebra?The analysis of mathematical representations is algebra, and the handling of those symbols is logic.
Let the missing terms x, y and y in the given sum,
_ x , 1 , 3
4 , y , 8
_________
2 1 z
As per the fundamental algebra,
x - 4 = 2 | 1 - y = 1 | 3 - 8 = z
x = 2 + 4 | y = 1 - 1 | z = -5
x = 6| y = 0 | z = -5
Let the missing terms a, b, and c in the given sum,
_ 7 , b , 5
a , 3 , 9
_________
3 8 c
As per the fundamental algebra,
7 - a = 3 | b - 3 = 8 | 5 -9 = c
a = 7 - 3 | b = 8 + 3 | c = 5 - 9
a = 4 | b = 11 | c = -4
Thus, the required missing values are 6, 0, and -5 respectively in the sum (a). The required missing values are 4, 11, and -4 respectively in the sum (b).
To learn more about the Algebra link is given below.
brainly.com/question/953809
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WHICH HAT HELP THANK YOU WHICH HAT HELP THANK YOU
Answer:
They're both cool but I personally like the first one better lol