Answers
Answer:
an = 6n - 18
Step-by-step explanation:
a3 = 0, a4 = 6, a5 = 12, a6 = 18, a7 = 24
a3 = a + 2d
a4 = a + 3d
a + 2d = 0 (1)
a + 3d = 6 (2)
Subtract (1) from (2) to eliminate a
3d - 2d = 6 - 0
d = 6
Substitute d = 6 into (1)
a + 2d = 0 (1)
a + 2(6) = 0
a + 12 = 0
a = -12
nth term,an = a + (n - 1)d
= -12 + (n - 1) 6
= -12 + 6n - 6
= 6n - 18
an = 6n - 18
Related Questions
Find the missing angle:
40°
?
Answers
Answer:
50
Step-by-step explanation:
180 − ( 90 + 40 )
180 − 130
50
50 degrees is the missing angle in the triangle
The given triangle is right angle triangle
One angle is 90 degrees and the other angle in the triangle is 40 degrees
We have to find the missing angle in the triangle
By angle sum property the sum of the three angles is 180 degrees in the right triangle
Let x be the missing angle
90+40+x=180
130+x=180
Subtract 130 from both sides
x=180-130
x=50 degrees
Hence, the missing angle in the triangle is 50 degrees
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To linear functions are shown below. Which function has a greater rate of change?
Answers
Which of these relations are functions? Select all that apply.
Answers
Answer:
the 1st one and the 3rd one hope that helps!
Step-by-step explanation:
Answer:
Answer C and B are the most resonable!
Step-by-step explanation:
There were 45 questions on a science quiz. Maria answered 36 correctly. What percent of the questions did Maria answer correctly?
Answers
Answer: 80%
Step-by-step explanation:
Answer:
80%
Step-by-step explanation:
Formula- a/b = n/100
36/45 = n/100
do cross multiplication:
3600/45 = 80
5. 3/4 divided by 1/5
Answers
Step-by-step explanation:
3/4÷1/5
15/20÷4/20
we flip the second fraction and change the ÷ into ×
15/20×20/4=300/80
and now you can simplify this fraction.
Step-by-step explanation:
3/4 / 1/5
3/4 x 5/1
=15/4
A map has the scale of 1 inch = 50 miles. if two cities are 1 inch apart on the map how many miles separate the cities?
Answers
Answer: 175
Step-by-step explanation:
To determine the actual distance using the map scale of 1 inch = 50 miles, you would multiply the number of inches shown on the map by 50.
For this problem: 3 1/2 • 50 = 7/2 • 50 = 175 miles
The two cities are 175 miles apart.
From the set {7.8, 8.5, 9.1, 9.9}, use substitution to determine which value of x makes the equation true. 3.2 (x - 6.7) = 5.76
Answers
Answer:
8.5
Step-by-step explanation:
Given the equation :
3.2(x - 6.7) = 5.76
x - 6.7 = 5.76 / 3.2
x - 6.7 = 1.8
x = 1.8 + 6.7
x = 8.5
Answer:
8.5
Step-by-step explanation:
Please Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
A-21 degrees more
B& degrees Fahrenheit
Step-by-step explanation:
Choose your answer
tan(-20°) = _____.
A. -tan 20°
B. tan 20°
C. tan (-160°)
D. -tan 160°
Answers
Answer:
I believe the answer is A) -tan 20°
Step-by-step explanation:
Answer:
tan(-20°) =A. -tan 20°
since angle is positive at only cos -∅ and sec-∅
9 - (-8) • 3
Order of Operations
Answers
Answer:
33
Step-by-step explanation:
Order of Operations:
1. Parenthesis
2. Exponents
3. Multiplication/Division (left to right)
4. Addition/Subtract (left to right)
Step 1: 9-(-8) • 3
Step 2: 9-(-24)
Step 3: 9 + 24
Answer: 33
Answer:
33
Step-by-step explanation:
Multiply and divide (left to right)
(-8)*3
=-24
Add and subtract (left to right)
9-(-24)
=9+24
9+24
=33
Determine whether the graphs of the given equations are parallel, perpendicular, or neither.
Y= -2x+3
2x+y=7
A. Parallel
B. Perpendicular
C. Neither
Answers
Answer:
A
Step-by-step explanation:
Because the have the same slope.
The second equation solving for y is:
Y= -2x+7.
Both equations have the same slope of -2
Answer:
Parallel
Step-by-step explanation:
If lines have the same slope, then they are parallel. If lines have slopes that are opposite reciprocals of each other, then they are perpendicular. If neither one of those statements are true, then the answer is neither.
1) First, find the slope of the first equation. [tex]y = -2x + 3[/tex] is already in [tex]y = mx + b[/tex] format, or slope-intercept form. The [tex]m[/tex], or the coefficient of the x term, represents the slope. Thus, by looking at the equation, -2 is the slope of [tex]y = -2x + 3[/tex].
2) Second, find the slope of the second equation. [tex]2x + y = 7[/tex] is in standard format, but we can change it to slope-intercept format by isolating the y like so (just subtract both sides by 2x):
[tex]2x + y = 7 \\y = -2x + 7[/tex]
Now that it is in slope-intercept form, we can look at the coefficient of the x term, or [tex]m[/tex], to find the slope. That number is -2, thus the slope of [tex]2x + y = 7[/tex] is -2.
3) We found out that the slopes of both equations are -2. Thus, since they share the same slope, the lines are parallel.
a. True/False
To complete the square on the left side of the equation x2 - 6x = 9,
you must subtract the number 9 from both sides.
Answers
Answer:
True
Step-by-step explanation:
[tex]x^{2} -6x=9[/tex]
subtract [tex]9[/tex] from both sides
[tex]x^{2} -6x-9[/tex]
plz mark me brainliest. ;)
10. Jacob ran at a rate of 7 miles per hour. At this rate, how far does he run in 30 minutes?
Answers
Answer: Jakob will run 3 1/2 miles in 30 min
Step-by-step explanation: you need to take 7 in half because half of an hpur is 30 minutes so half of seven is 3 1/2 so that is the answer
Answer:
3.5 miles
Step-by-step explanation:
1 hour = 60 minutes
Proportions:
7 miles = 60 minutes
J miles = 30 minutes
J = 7*30/60
J = 3.5 miles
in an equilateral triangle the sides are 14sqrt7. find the length of the altitude
Answers
Answer:
1
Step-by-step explanation:
omg it's so hard what is 2 + 2 (yes)
Answers
Answer:
5
Step-by-step explanation:
A scooter tracked 30 feet in 2 seconds at a constant speed what is the speed of the scooter in feet per second
Answers
James wants to buy a house.
The price of the house is a quarter of a million pounds.
James has to pay a deposit for the house.
The deposit is 15% of the price of the house.
James already has part of the deposit.
He has £32 000
(a) How much more money does James need for the deposit?
Answers
Answer:
27,200
Step-by-step explanation:
15% of 32,000 pounds is 4,800. Just subtracting them will end you with 27,200.
Will be the answer for this question
3. Diego measured the length of a pen to be 20 cm. The actual length of the pen is 22 cm.
Which of these is closest to the percent error for Diego's measurement?
A. 2%
B. 4.5%
C. 10%
D. 9%
Answers
22cm—>100%
2cm—->2x100\22=9.09%
Diego’s error was 2cm Which represents 9.09% of the actual length of the pen
Sloan works 7 1/2 hours each day. How many hours h does Sloane work in d days?
Answers
A triangle has two sides that are 4 in. and 10 in. What could be the length of the third side of the triangle? Select three that apply.
Group of answer choices
12 in.
11 in.
14 in.
6 in.
4 in.
8 in.
Please i need this asap
Answers
Answer:
6 in
Step-by-step explanation:
Evaluate. 8^4 · 8^–6
Answers
Answer:
0.015625
Step-by-step explanation:
8⁴×8⁻⁶
= 8⁴⁺⁻⁶ = 8⁻² = 0.015625
Answer:
x/64 hope this helps
Step-by-step explanation:
Raúl is mixing a cleaning spray. The instructions say to combine 2 cups vinegar with 1 cup water. Raúl wants to make 15 cups of spray. How many cups of vinegar and how many cups of water should Raúl use?
Answers
vinegar = 5x2 = 10 cups
water = 5x1 = 5 cups
Another chance for brainliest if it correct ! Please help
Answers
Answer:
Step-by-step explanation:vdcdcdcdcdc
WILL GIVE BRAINLIEST AND 20 POINTS!
One side of a square room measures 24 ft. How many square yards of carpet are necessary to carpet the room? Hint: 1 yd2 = 9 ft2.
yd2
Answers
Answer:
2.6
Step-by-step explanation:
24 ft. divided by 9 is 2.6666666666...
= 24^2
=576 ft^2
=576/9
=64 yd^2
a lesson ends at 2:30 it lasts for 55 minutes. when does the lesson starts
Answers
Answer: 1:35
Step-by-step explanation:
Just go and hour back from 2:30 and add 5 minutes
Answer:
1:35
i subtracted at a 1 back from 2:30 -5 minutes which would be 1:35 sorry if i confused you
Bianca has to drive 180 miles to her aunt’s house. She drove 30% of the total distance before lunch. How many miles did Bianca drive before lunch? Show your work.
Answers
Answer:
6 miles
Step-by-step explanation:
180 ÷ 30 = 6
Bianca drove 6 miles before lunch to her Grandma's house.
A package of 5 pairs of insulated socks costs $37.45. What is the unit price of the pairs of socks? The unit price is $nothing per pair of socks.
Answers
Answer:
i think 6.59
Step-by-step explanation:
Please answer this question
Answers
Answer:
b
Step-by-step explanation:
Answer:
a
Step-by-step explanation:
In the city where sonya lives, it rains and average of 8.05 centimeters each month last year.About how many centimeters of rain fell in all last year? Show your work.
Answers
You would multiply 8.05 times the #of momths which is twelve.
The total centimeters of rainfall in the city for the past year where Sonia lives is given by the equation A = 96.6 cm
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the total centimeters of rainfall for the past year be A
Now , the equation will be
The centimeters of rainfall every month in the city = 8.05 cm
The total number of months in a year = 12 months
So ,
The total centimeters of rainfall in the city for the past year A = centimeters of rainfall every month in the city x total number of months in a year
Substituting the values in the equation , we get
The total centimeters of rainfall in the city for the past year A = 8.05 x 12
On simplifying the equation , we get
The total centimeters of rainfall in the city for the past year A = 96.6 cm
Therefore , the value of A is 96.6 cm
Hence , the total rainfall is 96.6 cm
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Plz answer fast it is due tmrw
Answers
Answer:
your answer is correct
Step-by-step explanation: