Answers
This type of problem, you set them equal to each other. And then solve. Don’t forget you can multiply each side by denominator to eliminate the fraction.
Work:
Related Questions
Can the following question be considered a statistical question and why or why not?
Do students at Bryan Middle School exercise?
Yes, it specifies the population
No, it does not specify the population
Yes, it anticipates enough variability in responses
No, it does not anticipate enough variability in responses
Answers
Answer: Yes, it anticipates enough variability in responses
Step-by-step explanation:
A statistical question is a question that can be answered by collecting data that vary. For example, “How old am I?” is not a statistical question, but “How old are the students in my school?” is a statistical question.
Write sin(x+1) in terms of unshifted sine and cosine. Write your answer using decimals.
Please provide explanation, I’m confused.
Answers
Answer: sin(x + 1) = 0.841*cos(x) + 0.540*sin(x)
Step-by-step explanation:
Here we can use the relation:
Sin(a + b) = sin(a)*cos(b) + sin(b)*cos(a)
In this case we have:
sin(x + 1)
This means that the graph of sin(x) is shifted one unit to the left.
But we can write this, using the above relation, as:
sin(x + 1) = sin(x)*cos(1) + sin(1)*cos(x)
Now we have no longer a shift, and we can replace:
sin(1) = 0.841
cos(1) = 0.540
Then:
sin(x + 1) = 0.841*cos(x) + 0.540*sin(x)
Which graph represents a function? Edge 2020
Answers
Answer:
Last Graph
General Formulas and Concepts:
Algebra I
Vertical Line Test - A function's x-values must have only 1 y-value corresponding to it. If the function fails to pass this, it is not a function.Step-by-step explanation:
When we apply the Vertical Line Test to the 1st graph, it does not pass it. Therefore, the 1st graph is not a function.
When we apply the Vertical Line Test to the 2nd graph, it does not pass it. Therefore, the 2nd graph is not a function.
When we apply the Vertical Line Test to the 3rd graph, it does not pass it. Therefore, the 3rd graph is not a function.
When we apply the Vertical Line Test to the 4th graph, it does pass it. Therefore, the 4th graph is a function.
Nina likes to tip restaurant staff 18% when she enjoys the meal and has good service. Which expression represents the amount of tip, in dollars, that Nina will give when she has a positive experience eating a meal that cost n dollars? 0.18n 18n StartFraction n over 18 EndFraction n + 0.18
Answers
Answer:
18n
Step-by-step explanation:
just got done taking the test
Answer:
0.18n
Step-by-step explanation:
Which number sets (i.e. Natural, Whole, Integer, Rational, Real, etc.) are best suited to represent discrete functions? Why? Which number sets are best suited to represent continuous functions? Why?
Answers
Answer:
They are considered discrete
Step-by-step explanation:
because
can't rely see it lol
Answers
Answer:
x = 60
Step-by-step explanation:
Answer:
x = 60°
Step-by-step explanation:
we know that triangles have 180 degrees so we can set up an equation:
86 + 34 + x = 180
now we subtract the sum of 86 and 34 from both sides to get a final answer:
x = 60
so lets plug our x value into the previous equation to check our answer:
86 + 34 + 60 = 180
when we add these numbers together, the equation checks out so we know our answer is correct.
hope this helps!
50 percent of 25 percent of the number is 96
Answers
Answer:
12
Step-by-step explanation:
25 percent of 96 is 24. 50 percent of 24 is 12.
If the number of dates Anna and John had is represented by three consecutive integers, what is the algebraic expression for
the total number of dates they have had?
Answers
Step-by-step explanation:
x,x+1,x+2
Topic: algebraic expression
If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!
Let x represent the first date. The expression x+1 represents the second date. The expression x+2 represents the third date. The total number of dates as follows
The area of the postcard pictured below is 24 square inches. What is the width b of the message section (in inches)? Pick the equation that would best model this situation.
A. 4(b + 3) = 24
B. 3(4 + b) = 24
C. 4(b - 3) = 24
D. 3(b - 4) = 24
Answers
Answer:
Step-by-step explanation:
4(b + 3) = 24
Answer:
A. 24 = 4(b + 3)Step-by-step explanation:
Area is equal to length times width. In this case, the length is b + 3 (since both b and 3 are part of the width, with the length being 4.
Substitute into the equation for area:
a = lw
a = 4(b + 3)
The area is 24, so the final answer is:
A. 24 = 4(b + 3)Which figure is shown in the drawing?
Answers
ray XY is the answer
Please give Brainliest also I hope this helps!
In the figure, of the given alternatives, a ray XY is shown.
What is a ray?The definition of ray in math is that it is a part of a line that has a fixed starting point but no endpoint. It can extend infinitely in one direction.Given is the figure as shown in the image.
Of the given options, only a ray given by XY{with overhead arrow} can be seen as it has one starting point at [x] and extends along.
Therefore, in the figure, of the given alternatives, a ray XY is shown.
To solve more questions on geometry, visit the link below -
https://brainly.com/question/13254913
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Martin finished sewing LaTeX: \frac{7}{8}7 8 of his outfit. Kary finished sewing LaTeX: \frac{3}{7}3 7 of what Martin had finished. What fraction of Kary's outfit was finished?
Answers
Kary's outfit is 3/7 sewn
How to calculate slope?
Answers
Answer:
Rise/run rise over run
Step-by-step explanation:
y2-y1/x2-x1
PLEASE HELP!!!!!!!!!!
please answer all these questions
Answers
2.) 9
3.) 1/2
4.) 0.5
5.) 1
6.) -8
anyone help???
Thank you
need it in 3 min
Answers
Answer:
$40.352
Step-by-step explanation:
Answer:
666 ni\gdre
Step-by-step explanation
what is the sum of (-2.1x + 3.7) and (5 + 4.9x)?
Answers
Answer: [tex]=2.8x+8.7[/tex]
[tex]=-2.1x+3.7+5+4.9x[/tex]
[tex]=(-2.1x+4.9x)+(3.7+5)[/tex]
[tex]=2.8x+8.7[/tex]
Najat is selling raffle tickets. The table shows the cost (in dollars) of buying different numbers of tickets.
Using x for the number of tickets and y for the cost, do the following.
Write an equation relating x and y
Answers
Answer:
The equation relating x and y is: y=4x
Step-by-step explanation:
Let x represent number of tickets
and y represent cost
a) Plot the ordered pairs
The ordered pairs (1,4),(2,8),(3,12),(4,16) is plotted in figure attached.
b) Write an equation relating x and y
y= 4x
Now checking by putting values of x to see, if we get values of y
if x=1, then y=4x => y=4*1 =>y=4
if x=2 then y=4x => y=4*2 =>y=8
if x=3 then y=4x => y=4*3 =>y=12
So, we get same values as table.
The equation relating x and y is: y=4x
Multiply 3 over 7 times 5over 8
Answers
Answer:
0.26785714285
Step-by-step explanation:
Answer:
Step-by-step explanation:
3/7 * 5/8
This equates to 15/56.
Multiply 3 and 5 (which equals 15).
Multiply 7 and 8 (which equals to 56)
#teamtrees #WAP (Water And Plant)
what is the variance of the following set of data? 5 ,55 , 505, 255, 5, 75 , 85, 65
Answers
Answer:
27964.286
Step-by-step explanation:
i just used calculator soup
Answer:
28,912
Step-by-step explanation:
i also used calculator soup but gave the right answer
Factor the following expression:
14x+49
Answers
14x+49
7(2x+7)
Factor out 7
Answer: 7 out of 14x+49 = 7(2x+7)
14x+49
7(2x+7)
Hope this helps... Stay safe and have a great day/night!!!! :D
This why is the product of 2 rational numbers always rational
Answers
Answer:
Adding two rational numbers is like adding two positive numbers, or two like fractions.
5r + 2d
I need to know the answer to this equation.
R = 3 and d = 5
brainliest and 30 points for correct answer and first person ONLY
Answers
Answer:
=25
Step-by-step explanation:
plug in the numbers for the variables
5(3)+2(5)
15+10
25
Which exponential expression represents the numerical expression 9⋅9⋅9?
93
39
3×9
9×3
Answers
Answer:
93
Step-by-step explanation:
Answer: The first one 9³
Step-by-step explanation:
Note: 9³ or nine to the third power or 9-cubed is correct, because we are multiplied the number 9 by itself, three times
The value equal to:
9*9*9 is equal to: 9³
that is, nine to the THIRD power or:
nine to the power of three
Write 0.0000000068 as a scientific notation
Answers
Answer:
10×6.8 to the 9th power
write an equation of the line that passes through (-1, 3) and has a slope of -4
Answers
Answer:
y = -4x - 1
Step-by-step explanation:
We are given the slope so we can find the y intercept using slope intercept [ y = mx + b ]
y = -4x + b
3 = -4(-1) + b
3 = 4 + b
-1 = b
Now, put everything we know and solved for back into the formula.
y = -4x - 1
Best of Luck!
i will give brainilest
The table shows the number of each score earned by 120 students on a sixth grade mathematics test.
Score Number of Students
100 9
95 18
90 72
85 15
80 6
What is the ratio of students scoring above 80 to students scoring exactly 80 on this test?
Group of answer choices
1 to 20
19 to 1
1 to 19
20 to 1
Answers
Work:
Students scoring above 80 -
9+18+72+15= 114
Students score exactly 80-
6
114/6 = 19
19 students scored above 80 for every 1 student that scored exactly 80.
Which line is parallel to the line given y=-5/2x-7
Answers
Answer:
xzy567
Step-by-step explanation:
Mr mogi barrowed $9,000 for 10 years to make home improvements if he paid a total of $11,000 in interest in interest at what I test rate did he barrow the money
Answers
Answer:
Step-by-step explanation:
These polygons are similar find the value of Y. PLLZZZ HELP
Answers
y=4
8 ÷6= 1.3
6÷1.3=4
Solve for n.
n + 1 = 4(n-3)
n = 1
n = 8
n = 11
n = 16
Answers
Answer:
I think its n=1 but not quite sure.
Find the value of the variable, x
Group of answer choices
45
42
2
21
Answers
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[tex]2x + 3 = 45[/tex]
Subtract sides 3
[tex]2x + 3 - 3 = 45 - 3[/tex]
[tex]2x = 42[/tex]
Divide sides by 2
[tex] \frac{2}{2} x = \frac{42}{2} \\ [/tex]
[tex]x = 21[/tex]
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Thus the correct answer is the last option.
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Answer:
The value of x is 21.
Step-by-step explanation:
The angles of a triangle all add up to 180 degrees. One side has an angle of 90 (right angle). So to find the others you would subtract 180 from 90 and divide it by 2. And you will get 45, so both acute angles will be 45 degrees.
If you subsitute 21 for x you will get 2*21 + 3 = 45, which is true (42 + 3 = 45)
please mark brainliest