Answer:
an = a+(n-1) d
this is the rule
Answer:
nth term = 21 - 3n
Step-by-step explanation:
18,15,12,9....
This is an arithmetic sequence.
a= first term = 18
Common difference = d = second term - first term
d = 15 - 18
d = -3
nth term = a + (n-1)d
= 18 + (n-1)*(-3)
= 18 + n*(-3) - 1*(-3)
= 18 - 3n + 3
= 21 - 3n
WILL GIVE BRAINLY IF CORRECT!
First, convert these two mixed fractions into improper fractions.
You can do that by following these steps:
Multiply the outside number by the number in the denominator
Add the product to the number in the numerator
5[tex]\frac{1}{4}[/tex] = [tex]\frac{21}{4}[/tex]
3[tex]\frac{7}{8}[/tex] = [tex]\frac{31}{8}[/tex]
Now, convert these fractions so that they share the same denominator. 4 and 8 share the same factor of 8. Multiply the numerator and denominator of [tex]\frac{21}{4}[/tex] by 2 so that the denominator becomes 8.
[tex]\frac{21}{4}[/tex] = [tex]\frac{42}{8}[/tex]
Now find how many inches of string each person has by using multiplication:
Sophie has [tex]\frac{42}{8}[/tex] × 5 = [tex]\frac{210}{8}[/tex] inches total
Cooper has [tex]\frac{31}{8}[/tex] × 4 = [tex]\frac{124}{8}[/tex] inches total
To find how much more inches Sophie has, subtract the two fraction from each other:
[tex]\frac{210}{8} - \frac{124}{8}[/tex] = [tex]\frac{86}{8}[/tex]
Simplify the fraction:
Sophie has 10[tex]\frac{6}{8}[/tex] or 10[tex]\frac{3}{4}[/tex] more inches than Cooper
a room is 15.75 square yards and the carpet costs $15 per square yard. how much will it cost to carpet the room
Answer:
236.25
Step-by-step explanation:
15.75 sq yards * 15 dollars per sq yards = 236.25
You multiply the amount of square yards with the amount each costs to get your answer.
Hope this helps!
Find the values of x and y. The diagram is not to scale.
A.) x=60, y=83
B.) x=83, y=60
C.) x=83, y=62
D.) x=42, y=60
Answer:
[B] x = 83, y = 60
Step-by-step explanation:
Find the value of x
we know that
[tex](x-3)=80[/tex] -------> by corresponding angles, because the given lines are parallel
Solve for x
[tex](x-3)=80[/tex]
[tex]x=80+3[/tex]
[tex]x=83[/tex]
Find the value of y
we know that
[tex]x-3+42+(y-2)= 180[/tex]
substitute the value of x and solve for y
[tex]83-3+42+(y-2)= 180[/tex]
[tex]80+42-2+y=180[/tex]
[tex]120+y=180[/tex]
[tex]y=180-120[/tex]
[tex]y=60[/tex]
Therefore, the answer is [B] x = 83, y = 60
[RevyBreeze]
7x3+32+100= so some people don’t know this (likely my cousin) so first u do 7x3=21 and then 21+32=53 so then you add 53+100=153 boom! You got the answer (I’m in year 9)
Answer:
153
Step-by-step explanation:
7x3+32+100=153
Give brainiest cause you greatest person alive
What is the quotient of 2,914 ÷ 37?
Answer: 79 when rounded
Step-by-step explanation:
Answer:
its 787567567568
Step-by-step explanation:
help me please, will give brainliest
Step-by-step explanation:
Mark me as brilliant plzzz
When x=4
1. Substitute the x into the equation.
y=3(4)+10
2. Solve for y
y=3(4)+10
y=12+10
y=22
When x=5
1. Substitute the x into the equation.
y=3(5)+10
2. Solve for y
y=3(5)+10
y=15+10
y=25
When x=6
1. Substitute the x into the equation.
y=3(6)+10
2. Solve for y
y=3(6)+10
y=18+10
y=28
The actual length of a table is 45 [tex]\frac{1}{2}[/tex] inches. Harriet estimates the length of the table and finds her percent error to be less than 4%.
What range of values represents Harriet's estimated length?
Enter your answers as decimals or mixed numbers in simplest form by filling in the boxes.
Give me answer ASP ( I will give the first person that's right all my points)
Answer: 43.68 and 47.32
Step-by-step explanation: I took the test
What is 0.1326 as a unit rate?
Answer:
0.13
Step-by-step explanation:
because you have to round up when the fourth number is from 0-4 it stays the same but when its from 5- and up it goes up one
Solve the system of equations -x + 2y = –2 and 6x – y = -43 by combining
the equations.
Answer:
{x,y}={-8,-5}
Step-by-step explanation:
/ Solve equation [2] for the variable y
[2] y = 6x + 43
// Plug this in for variable y in equation [1]
[1] -x + 2•(6x+43) = -2
[1] 11x = -88
// Solve equation [1] for the variable x
[1] 11x = - 88
[1] x = - 8
// By now we know this much :
x = -8
y = 6x+43
// Use the x value to solve for y
y = 6(-8)+43 = -5
Solution :
{x,y} = {-8,-5}
hope this helps!
Please help ! Use 1st and 2nd differences to determine if the following table is linear, quadratic or neither.
Answer:
Quadratic
Step-by-step explanation:
anytime the Y values repeat in that fashion, it's going to be a parabola aka quadratic function
please help me with this math
r = d x 3.14
6mm = 12 mm x 3.14
12 x 3.14 = 37.68
37.68 rounded is 38.
38 rounded is 40.
I believe the answer is A) 36(pi)mm^2.Let me know if this is the correct answer. :)
What is the equation of the line that contains the point (-1, 4) and has a slope of 3?
write -2x^3(4x^3+5x^6) in standard form, classify the degree and find the end behavior.
A) -8x^6-10x^9; 6th degree; up to down.
B) -10x^9-8x^6; 9th degree; up to down.
C) -10x^9-8x^6; 9th degree; down to up.
D) -8x^9-10x^18; 9th degree; up to down.
Answer:
[tex]-10x^9 - 8x^6[/tex]; up to down
Step-by-step explanation:
[tex]-2x^3(4x^3+5x^6)[/tex]
[tex]-2x^3(4x^3) + -2x^3(5x^6)[/tex]
[tex]-8x^6 + -10x^9[/tex]
[tex]-10x^9 - 8x^6[/tex]
Hope this helps!
Find the surface area in square inches of a right circular cylinder with a diameter of 1 foot and height of 1 foot
Answer:
678.58416 square inch
Step-by-step explanation:
4.71239ft² = 678.58416 square inch
what is the correct factorization of 6x^2 -2x -20?
Please get correct!
→ 6x² - 2x - 20
→ 6x² + 10x - 12x - 20
→ x(6x + 10 ) - 2 (6x + 10)
→ (6x + 10) (x - 2) .
for
6x - 10 = 0
6x = 10
[tex]{x\:=\:\frac{5}{3}}\\[/tex]
for x - 2
x = 2
The factored form of the expression is (6x+10)(x-2)
How to factorize expressionGive the quadratic expression
6x^2 -2x -20
On factorizing
6x^2 -2x -20
6x^2 -12x + 10x -20
6x(x-2) + 10(x-2)
(6x+10(x-2)
HEnce the factored form of the expression is (6x+10)(x-2)
Learn more on factorization here: https://brainly.com/question/25829061
what is the square root of 13?
Answer:
[tex]\sqrt{13} = 3.605[/tex]
in the computer lab there are 14 apple computers and 16 PC computers
approximately what percent of the computer are PCs
Answer:
14 + 16 = 20
16/20
= 80/100
80 %
Step-by-step explanation:
Answer:
Find the percentage of PCs
Total is 14+16=30 computers
PCs are 16
so, 16/20×100%= 80%
PLSSS HELP IF YOU TURLY KNOW THISS
Answer: A
Step-by-step explanation:
There are 8 ticks until the whole number 1. It is on the 2nd tick. 2/8
Answer:
A. 2/8
Step-by-step explanation:
2/8 = 0.25
6/8 = 0.75
8/2 = 4
The only one that makes the most sense is 2/8 or 0.25
Look at the number lines in the pictures
If consumers always spend 15 percent of their income on food, then the income elasticity of demand for food is
O a. 0.15
O b. 1.00
O C. 1.15.
O d. 1.50.
O e. none of the above.
The income elasticity of demand for food is 1.
What is income elasticity of demand?
The income elasticity of demand measures how quantity demanded changes when income changes.
income elasticity of demand = percentage change in quantity demanded / percentage change
When income elasticity of demand is one, it means that the good has a constant demand regardless of changes in income.
To learn more about elasticity of demand, please check: https://brainly.com/question/18850846
Can someone please help
Answer:
10.) If you buy all larger cans (aka the 7-gallon cans), you would have saved approx. $30.21
9.) Seth would need a score of 95% in order to average an 80%
Step-by-step explanation:
10.) It costs $15.50 per 5-gal. If you want to buy 45 gallons, it would cost you $139.50 if you bought 5-gallon cans.
It costs $17.00 per 7-gallon. If you want to buy 45 gallons, it would cost you $109.29 if you bought 7-gallon cans.
Now, let's compare prices. Buying 45 gallons worth of 7-gallon cans is less expensive by.... (139.50 - 109.29 = 30.21)
Therefore, you saved $30.21.
9.) An average is done by adding up all the numbers and dividing it by how many numbers you added it by. Let's write an equation to make things easier. So far, we don't know the score he needs to get on his fourth test so let's make it a variable x.
(82 + 68 + 75 + x) / 4 = 80
Let's solve for x.
(82 + 68 + 75 + x) / 4 = 80 *Multiply both sides by 4
82 + 68 + 75 + x = 320 *Add like terms
225 + x = 320 *Subtract 225 from boths to get x on one side
x = 95
There are four students working on a project in math class. Miguel has completed 1/8 of the project, Gina has completed 13% of the project, Jatziry has completed 0. 10 of the project, and Kwa has completed 1/9 of the project. Make a list of the students in order from least to greatest by the amount of the project they have completed.
There are a few methods to doing this, but lets make every number a fraction. (You could make them all percentages or decimals if you want, but it is more difficult in my opinion.)
Miguel: 1/8
Gina: 13/100
Jatziry: 10/100 = 1/10
Kwa: 1/9
Now we need to find the least common denominator, which is 1800.
Now you have these fractions:
Miguel: 225/1800
Gina: 234/1800
Jatziry: 180/1800
Kwa: 200/1800
Now you can easily list these in order
180/1800 < 200/1800 < 234/1800 < 225/1800
Jatziry < Kwa < Gina < Miguel
Sorry if I made any mistakes, I realized Jatziry was a part of the problem halfway through.
In an earlier lesson, we saw this graph that shows the percentage of all garbage in the U.S. that was recycled between 1991 and 2013.
1) Sketch a linear function that models the change in the percentage of garbage that was recycled between 1991 and 1995. For which years is the model good at predicting the percentage of garbage that is produced? For which years is it not as good?
2) Pick another time period to model with a sketch of a linear function. For which years is the model good at making predictions? For which years is it not very good?
Answer:
here we can use mathematics to make an equation but according to the questions rewarded marks we can only determine an sketch of best fit line
and not good in 1993 (predicted as graph is less accurate)
other period is 1995 to 2005
just somewhere you can see an line straight
A bag contains 3 red marbles, 6 blue marbles and 7 green marbles. If three marbles are drawn out of the bag, what is the probability, to the nearest 10th of a percent, that all three marbles drawn will be green?
What is the value of X?
A. 5
B. 2.5
C. 7.5
D. 10
Answer:
12. 5
11.
10
10
15. 7
14. 11
2
=
16
16
18. 3
+
11
17
3
4
co
loo
8
Step-by-step explanation:
12. 5
11.
10
10
15. 7
14. 11
2
Please help me with this question
Answer:
the first option
because when x is increased by 50 and y is decreased by 50 the equation goes thus
x+ 50 + y - 50 = 600
and + 50 -50 = 0
therefore x + y = 600
What is the coefficient in 5x + 13?
(please answer this immediate)
Answer:
The answer is 5
Step-by-step explanation:
The coefficient in any equation is the numerical or constant quantity placed before multiplying the variable.
what is the gradient of the blue line
Answer:4
Step-by-step explanation:
When you look at the two lines, you can see that the blue line is steeper than the red line. It makes sense the value of the slope of the blue line, 4, is greater than the value of the slope of the red line, 14 .
Help PLease this is another question
Answer:
A.
Step-by-step explanation:
The way the arrow faces, show whether the sign is greater or lesser
Which statements are true for the following expression? 30 · (8 + 7 + 3) Check all that are true. The solution is the product of two factors. The second factor is itself the sum of three terms. The solution is the sum of two terms. The coefficient is 3. The second factor is the sum of two terms.
Answer:
True:
The solution is the product of two factors.
The second factor is itself the sum of three terms.
False:
The solution is the sum of two terms.
The coefficient is 3. (This one I'm confused about. There is no x/letter term, so there shouldn't be a coefficient in this problem at all.)
The second factor is the sum of two terms.
Can you figure out the answer to this pencil problem?
The answer of this will be [tex]6[/tex] .
What are Addition and Subtraction?Addition is a mathematical operation that represents combining objects t into a larger collection. It is signified by the plus sign (+). Subtraction is a mathematical operation that represents process of finding the difference between numbers or quantities. It is signified by the minus sign (-)
We have,
In first line, we have
Two Red pencil [tex]+[/tex] One Red And Blue Pencil [tex]=21[/tex] [tex].........[/tex] First Row
Red pencil [tex]-[/tex] Blue pencil [tex]=3[/tex] [tex].........[/tex] Second Row
Red Pencil and Blue Pencil [tex]= 15[/tex] [tex].........[/tex] Third Row
Blue Pencil [tex]+[/tex] Blue Pencil [tex]= \ ?[/tex] [tex].........[/tex] Fourth row
We have,
From Second row ,
We will choose two numbers which have difference of [tex]3[/tex],
Let, [tex]6[/tex] and [tex]3[/tex]
i.e.
Red Pencil [tex]= 6[/tex]
Blue Pencil [tex]= 3[/tex]
So,
Red pencil [tex]-[/tex] Blue pencil [tex]=3[/tex]
[tex]6-3=3[/tex]
It means that the numbers we choose are best fir for the values of pencils.
Now, Put values of these pencil in Fourth row,
Blue Pencil [tex]+[/tex] Blue Pencil [tex]= \ ?[/tex]
[tex]3+3=6[/tex]
So, the values of the the Two blue Pencil will be [tex]6[/tex].
Hence, we can say that the answer of this will be [tex]6[/tex] . .
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