Answers
Step-by-step explanation:
–5/6 + 7/5 = –25/30 + 42/30
= 17/30
Related Questions
The thermosphere is the fourth layer of the Earth's atmosphere. This layer
starts just above the
mesosphere and extends to 600 kilometers above the surface of the Earth. In this layer the temperature
increases as you go up in altitude. Temperatures can be as low as -120°C to as high as 2000°C. Select all
expressions that show the range of temperatures found in the thermosphere.
A
|--120 - 2000
B.
|- 1201 - 12000
С
2000| - |-120
D
2000 - (-120)
E
- 1-120 - 2000
Answers
Answer:
a
Step-by-step explanation:
The expressions of the range of temperatures would be 2000 - (-120) found in the thermosphere which is the correct answer would be option (D).
What are Arithmetic operations?Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions. The operator that performs the arithmetic operation is called the arithmetic operator.
The fourth layer of the Earth's atmosphere is the thermosphere. It begins just above the mesosphere and rises to a height of 600 kilometres above the Earth's surface.
As you go in height, the temperature in this layer rises. The range of temperatures is from -120°C to 2000°C.
The range of temperatures found in the thermosphere would be the difference between the final temperature and the initial temperature.
initial temperature = -120°C
final temperature = 2000°C
The range of temperatures = final temperature - initial temperature
The range of temperatures = 2000 - (-120)
Therefore, the expressions of the range of temperatures would be 2000 - (-120) found in the thermosphere.
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Mario earned a raise that increased his hourly pay rate from $8 to $10. What was the
percent increase in his hourly pay?
part (difference or change)
%
whole (original amount)
100
O 20%
O 25%
O56%
O 80%
Answers
Answer:
25%
Step-by-step explanation:
You notice 8 to 10 is 2. So take 2 divided by 8 to find the percent and add 8 to see if it makes 10.
Finally! After nearly two weeks of manual labor in the Georgia summer heat, all of the moving boxes are unpacked and all of your things have a place. You and your three roommates, Alex, Payton, and Jordan, got so lucky in the real estate department. Your apartment is right in the heart of midtown and in walking distance from the Georgia Tech Engineering building where you take the majority of your classes. Everything is perfect! Well… except one crucial component. The four of you cannot seem to agree on an internet and cable provider!
You have narrowed the list of options down to a few of the best companies. All companies offer exactly what the four of you need to continue being top engineering students.The big difference? The price. Your roommates are math enthusiasts and engineering majors just like you, so you know you need to provide extensive evidence to each of them to help move the decision along.
SignoCable has a program where you are able to waive the installation fee and offers your cable for $210 per month.
Urban Cable is offering a special promotion. They are requiring a $320 installation fee upfront. The month to month payment will be $115 for the first 12 months. After the first year, the monthly fee will increase.
ITP Cable requires a lower installation fee than Urban Cable. After six months with this company, you would have paid $1081 since the beginning of the year, and $1257 after 7 months of paying.
MonstroPin Cable company’s installation fee is $100.50. The total payment in August is $59 more than three times the total payment in February.
You’ve decided it’s up to you to save you and your friends money by presenting them with a clear model of the out of pocket expense for all cable companies. Not only do you plan on making a visual representation for Alex, you will even write a proposal that analyses your findings for Payton and Jordan. You will provide them with indisputable evidence of which cable company will provide the most cost effective service. The service you guys choose now will dictate how fast you can register for classes, when you can stream Game of Thrones, and turn your papers in on time. Needless to say, this is an important decision!
Answers
Choose True or False for each equation for x = 6.
6x = 12
5 + x = 11
x ÷ 2 = 3
17 – x = 11
Answers
Answer:
false true true true
Step-by-step explanation:
The equation for x = 6 is true and would be equal to 6x = 12. and the rest are false.
What does it mean to solve an equation?An equation represents the equality of two or more mathematical expressions. When someone asks you to solve an equation, then they usually mean to find the values of the unknowns for which that equation would be true (the equality between expressions should hold for those values). Solutions to an equation are those values of the variables involved in that equation for which the equation is true.
The given equations are;
6x = 12
Substitute x = 6 to check whether the solution satisfies the equation;
6(6) = 36
Thus, it is False.
5 + x = 11
Substitute x = 6 to check whether the solution satisfies the equation;
5 + x = 11
5+ 6 = 11
Thus, it is True.
x ÷ 2 = 3
Substitute x = 6 to check whether the solution satisfies the equation;
6/2 = 3
Thus, it is True.
17 – x = 11
Substitute x = 6 to check whether the solution satisfies the equation;
17 - 6 = 11
Thus, it is True.
Hence, the equation for x = 6 is true and would be equal to 6x = 12. and the rest are false.
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A sequence is shown in the graph.
points at 1 comma 48, 2 comma 12, 3 comma 3, and 4 comma 75 hundredths
Assuming the pattern continues, what is the formula for the nth term?
an = 48(4n)
an = 48(0.25n + 1)
an = 4(48n − 1)
an = 48(0.25n − 1)
Answers
Answer:
(d) 48(0.25^(n-1))
Step-by-step explanation:
The points shown on the graph have y-values that decrease by a factor of 4 as x-values increase by 1. The first couple are (1, 48), (2, 12). You want the formula for the n-th term.
Geometric sequenceThe terms of a geometric sequence have a common ratio (r). If the first term is a1, the general term is ...
an = a1(r^(n-1))
ApplicationThe given sequence has first term a1 = 48. The common ratio is ...
r = 12/48 = 1/4 = 0.25
Using these value in the formula for the general term, we find the n-th term to be ...
an = 48(0.25^(n-1)) . . . . n-th term of the pattern
[tex]\begin{array}{ccccccccc} 1&&2&&3&&4&&5\\\cline{1-9} \\48&,&12&,&3&,&\underset{0.75}{\frac{3}{4}}&&\underset{0.1875}{\frac{3}{16}}\\[2em]\cline{1-9} &&48\left( \frac{1}{4} \right)&&12\left( \frac{1}{4} \right)&&3\left( \frac{1}{4} \right)&&\frac{3}{4} \end{array}~\hfill \begin{array}{llll} a_1=48\\\\ r=\frac{1}{4} \end{array} \\\\[-0.35em] ~\dotfill[/tex]
[tex]n^{th}\textit{ term of a geometric sequence} \\\\ a_n=a_1\cdot r^{n-1}\qquad \begin{cases} a_n=n^{th}\ term\\ n=\textit{term position}\\ a_1=\stackrel{\textit{first term}}{48}\\ r=\stackrel{\textit{common ratio}}{\frac{1}{4}\to 0.25} \end{cases}\implies a_n=48\left( 0.25 \right)^{n-1}[/tex]
find the point of inflexion for the function f(x)=x^4-6x^2
Answers
The points of inflection for the function [f(x) = (x⁴ - 6x²)] are (1, -5) and
(-1, -5).
As per the question statement, we are provided with a function
[f(x) = (x⁴ - 6x²)].
We are required to determine the points of inflection for the above mentioned function.
To solve this question, we will have to calculate the second derivative of the given function. Then, we will have to equate the derivative to zero and solve for x. The obtained values for "x" will be our abscissa, and substituting these values of "x" in f(x), we will obtain our respective ordinates [Since, {y = f(x)}].
[tex]f(x)=(x^{4} -6x^{2})\\or,\frac{d[f(x)}{dx} = \frac{d(x^{4} -6x^{2}) }{dx}\\ or, f'(x)=\frac{dx^{4}}{dx}-\frac{d(6x^{2})}{dx}\\ or, f'(x)=\frac{dx^{4}}{dx}-6\frac{d(x^{2})}{dx}\\or, f'(x)=4x^{(4-1)}-(6*2)[x^{(2-1)}]\\ or,f'(x)=4x^{3}-12x\\[/tex]
Therefore, the second derivative of f(x) = [tex]\frac{d^{2}f(x)}{dx^{2} }[/tex]
[tex]or,f"(x)=\frac{d[f'(x)]}{dx}\\or,f"(x)=\frac{d(4x^{3} -12x)}{dx}\\or, f"(x)=\frac{d(4x^{3}) }{dx}-\frac{d(12x)}{dx}\\ or, f"(x)=4\frac{d(x^{3}) }{dx}-12\frac{d(x)}{dx}\\or,f"(x)=(4*3)[x^{(3-1)}]-(12*1)[x^{(1-1)}]\\ or, f"(x)=12x^{2} -12[/tex]
Now, equating (12x² - 12) to Zero, we get,
[tex](12x^{2} -12)=0\\or,12x^{2} =12\\or,x^{2} =1\\or,x=(1, -1)[/tex]
Now, substituting (x = 1) in f(x), we get,
[tex]y=f(1)=[(1)^{4}-6(1)^{2}]\\ or,y=[1-(6*1)]\\or,y=(1-6)\\or,y=(-5)[/tex]
Hence, one point of inflection for the function [f(x) = (x⁴ - 6x²)] is (1, -5).
Again, substituting [x = (-1)] in f(x), we get,
[tex]y=f(-1)=[(-1)^{4}-6(-1)^{2}]\\ or,y=[1-(6*1)]\\or,y=(1-6)\\or,y=(-5)[/tex]
That is, another point of inflection for the function
[f(x) = (x⁴ - 6x²)] is (-1, -5).
Inflection Point (Of a Function): In differential calculus and differential geometry, an inflection point, point of inflection or flex, is that point on a smooth plane curve at which the curvature changes its concavity i.e. from being "concave up" to being "concave down" or vice versa, or if stated in simpler terms, that point where the curve changes its sign.To learn more about Points of Inflection, click on the link below.
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A school carnival sold tickets to ride on a Ferris wheel. The charge was $3.00 for adults and $2.00 for students. If 54 tickets were sold for a total of $141.00, how many adult tickets were sold?
Answers
Answer:
33 adult tickets and 21 student tickets
Step-by-step explanation:
We will create a system of equations.
Let x = the number of adult tickets sold and let y = the number of student tickets sold
x + y = 54
3x + 2y = 141
We can cancel out the y by multiplying the first equation by -2.
-2x - 2y = -108
3x + 2y = 141
Adding these equations together we get:
x = 33
Plugging this into the equation, we have:
38 + y = 54
y = 21
There were 33 adult tickets and 21 student tickets
I WILL GIVE BRAIN THING
Use algebra tiles to model the expression and combine like terms. Complete the statements. x + x + x + x + 4 – 1 Combine the x tiles to get . Combine the integer tiles to get . The equivalent expression is . You can use to verify the expressions are equivalent.
Answers
Answer:
1) Combine the x tiles to get: [tex]\mathbf{4x}[/tex]
2) Combine integer tiles to get: 3
3) The equivalent function is: [tex]\mathbf{4x+3}[/tex]
4) If we Substitute any value of x both expressions will be equivalent
Step-by-step explanation:
We are given expression: [tex]x+x+x+x++4-1\\[/tex]
We need to complete following statements.
1) Combine the x tiles to get:
[tex]x+x+x+x\\=4x[/tex]
Combine the x tiles to get: [tex]\mathbf{4x}[/tex]
2) Combine integer tiles to get:
[tex]+4-1\\=3[/tex]
Combine integer tiles to get: 3
3) The equivalent function is:
[tex]x+x+x+x++4-1\\\\4x+3[/tex]
The equivalent function is: [tex]\mathbf{4x+3}[/tex]
4) If we Substitute any value of x both expressions will be equivalent
Verifying:
[tex]x+x+x+x+4-1=4x+3\\Let\: x = 1\\1+1+1+1+4-1=4(1)+3\\4+4-1=4+3\\7=7[/tex]
So, Both expressions are equivalent.
The answer is "4x" for the first box
"3" for the second box
"4x + 3" for the third box
And "Substitution" for the last box
You're Welcome!
PS: I want to thank the first person for answering, you are amazing,
thanks!
Min saved 334 pennies. Rami saved 6 times as many pennies as Min.
How many pennies did Rami save?
Answers
Answer: Rami saved 2004 pennies
Step-by-step explanation:
5(2x-10)-3(2x-10)=4 what is x????? helpppp
Answers
Answer:
x = 6
Step-by-step explanation: (See picture)
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Hope this helps!
Have a great day and God bless! :)
You wish to purchase a new car, and can afford monthly repayments of up to $150 per month. You see a car you like for $6,000, and are offered financing to secure the purchase. The terms of the deal are that the loan lasts for 5 years, and the annual interest rate is 15.9%. Can you afford to purchase the car on finance?
Answers
The monthly repayment of $145.59 is less than expected monthly payment of $150, hence, the individual can afford tp purchase the car on finance
How do we determine affordability in this case?
In order to determine whether the individual can afford to purchase the car on finance, we need to ascertain the monthly payment of the loan based on the terms of deal provided which would be compared to the expected monthly repayment of $150 using a financial calculator as below:
N=60(number of monthly payments in years=5*12)
I/Y=15.9/12(monthly interest rate without the % sign)
PV=-6000(loan principal)
FV=0(after 60 monthly payments, the balance would be nil)
CPT(press compute)
PMT=$145.59
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Flight times An airline flies the same route at the
same time each day. The flight time varies according
to a Normal distribution with unknown mean and
standard deviation. On 15% of days, the flight takes
more than an hour. On 3% of days, the flight lasts
75 minutes or more. Use this information to deter-
mine the mean and standard deviation of the flight
time distribution.
Answers
Answer:
Mean = 41.588
Standard Deviation = 17.765
Step-by-step explanation:
60 - N/D = 1.03643
75 - M/D
75 - (60 - 1.03643D)/D = 1.88079
15 + 1.03643D = 1.88079D
15 = 0.84436D
17.765 = D
D = 17.765
-----------------------------------
60 - M = 1.03643D
60 - 1.03643D = M
M = 60 - 1.03643(17.765)
M = 41.588
Olivia is adding the numbers 25, 35, and 9. She wants to make a ten to add. Which ones digits does Olivia add first?
Answers
Answer:
35+25
Step-by-step explanation:
Olivia first add 25 and 35 to get the sum 10.
What is Addition?Addition is a technique for merging items and counting them as one big group. In math, addition is the process of adding two or more integers together. Addends are the numbers that are added, while the total refers to the outcome of the operation.
Given:
Olivia had numbers as 25, 35 and 9.
So, to get the 10 the number should contain 5 at unit place.
then we first add 25 and 35
= 20+ 5 + 30+ 5
= 50+ 10
= 60
Then, 60+ 9= 69
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I WILL GIVE. BRAINLIEST IF YOU HAVE PROOF (I need help)
Answers
Answer: use this link
Step-by-step explanation:
Evaluate the following expression 2 x 1 + 2 x 4.
Answers
Answer:
2 × 1 +2 × 4= 10
Step-by-step explanation:
because 2×1 is 2 and 2×4 is 8 then you add them and get 10
I GIVE BRAINLILSET
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
Answers
Answer:
(C) $1.5
Step-by-step explanation:
Profit Percent * Cost Price = Profit
20% * $1.25 =
20/100 = .2 * $1.25 =
$.25
Selling Price = Profit + Cost Price
$.25 + $1.25 = $1.5
Which three cards have equal values?
Answers
Answer:
Top Middle, Top Right, Bottom Left.
Solve by graphing
y+5 = 2x
3y + 6x = -3
Answers
Answer:
(1, -3)
Step-by-step explanation:
Use Desmos! It's really useful.
HELP!!! Find the range of the function shown in the graph:
Answers
Answer:
4/12
Step-by-step explanation:
brainest plz
Answer:
b
Step-by-step explanation:
The stemplot displays 26 students’ scores on a 90-point statistics test.
A stemplot titled Test scores has values 43, 45, 46, 51, 52, 53, 55, 57, 60, 63, 63, 65, 66, 67, 67, 69, 69, 71, 71, 72, 74, 76, 77, 79, 84, 85.
Which of the following best describes the center and variability of the distribution?
The scores on the test are centered around 63 and vary from 45 to 85.
The scores on the test are centered around 66 and vary from 43 to 85.
The scores on the test are centered around 66 and vary from 40 to 80.
The scores on the test are centered around 69 and vary from 45 to 85.
Answers
The scores on the test are centered around 66 and vary from 43 to 85.
What is the center and variability of the dataset?A stemplot is a type of table where figures are divided into a stem and a leaf. The stem is the first number in the digit while the leaf is the last number. For example in the number 31, 3 would be the stem and 1 would be the leaf.
The range is used to measure variation. The range is the difference between the highest number and the smallest number. The largest number is 85 and the smallest number is 43.
The data would be centered around the median. The median is the number at the center of a dataset. The median is a measure of central tendency.
Median = (sum of numbers + 1) / 2
(26 + 1) / 2
= 27 / 2 = 13.5th number
(66 + 67) / 2 = 66.5
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A wall is 412 feet long and has an area of 1534 square feet. What is its height in feet?
Answers
Answer:
3.72 ft
Step-by-step explanation:
Height of the wall will be equal to the width of the wall because we are considering over surface area of the wall
Therefore,
Area of the wall = length * height
1534 = 412 * height
Height = 1534/412
Height = 3.72 ft
6-2d=42
What is D please help me find what it is
Answers
Answer: -18
Step-by-step explanation:
if 6-2d=42
just subtract 6 from both sides
-2d=42-6
-2d=36 now divide by 2
-d=18
multiply by -1
d=-18
Answer: d=-18
Step-by-step explanation:
6-2d=42
First subtract 6 from both sides
-2d=36
Now divide both sides by -2 to get d alone
d=-18
Collect like terms
−
8
d
2
−
3
d
2
Answers
Answer:
8,2,2,3
d,d,
HOPE THIS HELPS
Answer:
5d²
Step-by-step explanation:
Given
8d² - 3d² ← collect like terms by subtracting the coefficients, that is
(8 - 3)d²
= 5d²
11. 1. What value of x makes the equation 3x - 6 = 9 true?
Answers
Answer:
5
Step-by-step explanation:
6+9=15
15/3=5
Mrs. Jones wants to make cookies.
She can make chocolate, vanilla, butter, or oatmeal cookies.
She will add either chocolate chips, nuts, or raisins.
How many different types of cookies can Mrs. Jones make?
Answers
Answer:
16
Step-by-step explanation:
Davita jogs 2000 feet in four minutes. At this rate, how many feet can she jog in eight minutes?
Answers
Answer:
In 8 minutes, she can jog 4000 feet.
Step-by-step explanation:
Davita jogs 2000 feet in 4 minutes.
Her rate is 2000/4 or 500 feet per minute.
500*8 = 4000
4x+3=8x-9 what does x equal
Answers
Answer:
x=75/4
Step-by-step explanation:
4x+3=8x-9
4x+3= -72
4x= -72-3
4x= -75
x=75/4
write a paragraph about what the Hawthorne Studies tells us about workers and what happens when they are being observed and why that is important
Answers
Answer:
is important because yo understand more with paragraph
Step-by-step explanation:
2(7m−5)+(−8+9m)=?
Does anybody know what the answer to this question is?
If you know, please tell me. I'm really in a hurry.
Answers
Answer:
23m-18
Step-by-step explanation:
2(7m−5)+(−8+9m)
Remove parenthesis
2(7m-5)-8+9m
expand
14m-10
14m-10-8+9
simplify
23m-18
Ask me for more questions brainliest please.
HELP!
I’m having a hard time solving this.
Log x + log (x+15)=2
Answers
Answer:
Step-by-step explanation: log x +log x +log15=2
2log x=2-log 15
log x= 0.823/2
x=antilog (0.411)
x=2.58