Answer:
x=3
Step-by-step explanation:
Here are the first four terms of a quadratic sequence
3 10 21 36
Work out an expression for the nth term
Please please answers this question ill give u like and mark as brainlist
Answer:
2n² + n
Step-by-step explanation:
Given sequence:
3, 10, 21, 36, ...
Work out the first differences between terms:
[tex]3 \underset{+7}{\longrightarrow} 10 \underset{+11}{\longrightarrow} 21 \underset{+15}{\longrightarrow} 36[/tex]
As the first differences are not the same, work out the second differences.
[tex]7 \underset{+4}{\longrightarrow} 11 \underset{+4}{\longrightarrow} 15[/tex]
As the second differences are the same, the sequence is quadratic and will contain an n² term.
The coefficient of n² is always half of the second difference. Therefore, as the second difference is 4, the coefficient of n² is 2.
To work out the nth term of the sequence, write out the numbers in the sequence 2n² and compare with the given sequence:
[tex]\begin{array}{|l|c|c|c|c|}\cline{1-5} n & 1 & 2 & 3 & 4 \\\cline{1-5} 2n^2 & 2 & 8 & 18 & 32\\\cline{1-5} \sf Operation & +1 & +2& +3& +4\\\cline{1-5} \sf Sequence & 3 & 10 & 21 & 36\\\cline{1-5}\end{array}[/tex]
Therefore, we need to add n to 2n² to match the sequence.
Therefore, the nth term of this sequence is 2n² + n.
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Graph the line y=−15x on the coordinate plane.
Answer:
The graph is provided in the image
Find the surface area of the figure.
6 in.
6 in.
6 in.
SA = [?]in.²
Hint: Area of Triangle = b•h
how do i solve -8 - -4 as an integer problem??
will give 30 points + brain
Answer:
-8 - (-4) = - 8 + 4
Because negative times a negative is positive
The sum of the squares of two consecutive integers is 25 find the integers
assignment means participants have an equal chance of being in the control group or in the experimental group. blind double-blind random nonbiased
Random assignment means participants have an equal chance of being in the control group or in the experimental group.
Assignment refers to putting people into experimental or control group. In this, the Random assignment involves dividing the participants into two groups through randomization. That is, selection is on random. Tis method provides equal chance for the participants to be in the experimental or control group.
This kind of assignment will be unbiased and the participants in two groups does not differ in any way. So random assignment makes the experiment and control group equivalent. Also this makes the experimental study more accurate, acceptable and scientific too.
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Find the product of √6 x √12
pls help for brianlest
The product of √6 and √12 is option b 6√2.
Given,
Two square roots : √6 and √12
We have to find the product of these square roots:
That is,
√6 × √12
Multiplying square roots:
Multiply the two numbers as usual without considering the square root.After multiplying consider the square root of the product.It will be the product of the square roots.So here,
Multiply the numbers,
√6 × √12 = 6 × 12 = 72
Now consider the square root of 72
√72 = √36 × √2 = 6√2
That is, the product of the square roots √6 and √12 is 6√2
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in a bowl containing 10 marbles, 5 are blue and 5 are pink. if 2 marbles are picked randomly, what is the probability that the 2 marbles will not both be pink?
Answer:from least to greatest:
1) g (x)
2) f (x)
3) h (x)
Step-by-step explanation:
Answer:
For f (x):
f (x) = (x + 3) ^ 2 - 2
For x = -1
f (-1) = (-1 + 3) ^ 2 - 2
f (-1) = (2) ^ 2 - 2
f (-1) = 4 - 2
f (-1) = 2
For x = 3
f (3) = (3 + 3) ^ 2 - 2
f (3) = (6) ^ 2 - 2
f (3) = 36 - 2
f (3) = 34
AVR = ((34) - (2)) / ((3) - (- 1))
AVR = 8
For g (x):
linear graph with and intercept of negative 3 over 2 and x intercept of 3
y = mx + b
b = -3/2
For me we have:
0 = m (3) - 3/2
3m = 3/2
m = 1/2
The function g (x) is:
g (x) = (1/2) x - 3/2
For x = -1
g (-1) = (1/2) (- 1) - 3/2
g (-1) = -1/2 - 3/2
g (-1) = -4/2
g (-1) = -2
For x = 3
g (3) = (1/2) (3) - 3/2
g (3) = 3/2 - 3/2
g (3) = 0
AVR = ((0) - (- 2)) / ((3) - (- 1))
AVR = 1/2
For h (x):
Using the table we have:
AVR = ((62) - (14)) / ((3) - (- 1))
AVR = 12
Step-by-step explanation:
Please help with problem 19
Algebra 1
The expression for r is n(4t-v) and the expression for the width is (P-2l)/2
Subject of formulaThis is a way of representing a variable with another variable.
Given the expression below:
r/n + t = 4v
Making r the subject
r/n = 4v - t
r =. n(4t-v)
Hence the expression for r is n(4t-v)
For the expression
P = 2l + 2w
P - 2l = 2w
2w = P - 2l
w = (P-2l)/2
Hence the expression for the width is (P-2l)/2
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A librarian's salary was $25000 in 2000 and $30500 in 2006. the librarians alary follow a linear growth pattern. What will the salary be in 2025
y=47,916.666 dollar after 25 years
librarian salary =25000 dollar in 2000
librarian salary=30500 dollar in 2006
in 6 years increment is 30500 - 25000= 5500dollar
in one year increment is 5500/6= 916.666
m= 916.666 each year
b= 25000
y=mx+b
y=916.666*25+25000 given x=25
y=47,916.666 dollar after 25 years
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What is x if f(x) = -2
in that function x would be -2
A food manufacturer donates money to schools based on the number of
its product labels the school collects. The students at one school collected
2,100 product labels in three months. The number of labels collected in the
first two months was three times the number of labels collected in the thirc
month. How many product labels were collected in the third month?
The total number of labels collected by the students in the third month is equal to 525 by the equation 3 x + x = 2100.
Let the number of labels collected in the first two months be 3 x.
We are given that the number of labels collected in the first two months was three times the number of labels collected in the third month.
So, the number of labels collected in the third month = 3 x / 3 = x
Now, we are also given that:
The total number of labels collected by the students at the school = 2100.
So, we get the equation as:
3 x + x = 2100
4 x = 2100
x = 2100 / 4
x = 525 labels.
Therefore, we get that, the total number of labels collected by the students in the third month is equal to 525 by the equation 3 x + x = 2100.
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The answersssssssssss
Answer:
pic 1 goes first second pic second slot
Step-by-step explanation:
After watching baking shows on T.V., Latrell signs up for a cake-decorating class. To practice
his new skills, he decorates a batch of cupcakes with sugar flowers. Latrell puts 4 sugar
flowers on each cupcake. In all, Latrell puts 32 sugar flowers on the cupcakes.
Which equation can you use to find the number of cupcakes c Latrell decorates?
34. THOUGHT PROVOKING
A runner's times (in minutes) in the four races
he has completed are 25.5, 24.3, 24.8, and 23.5.
The runner plans to run at least two more races
and wants to have an average time of less
than 24 minutes. Write and solve an inequality
to show how the runner can achieve his goal.
Answer:
Step-by-step explanation: I'm not sure it's an interesting question I hope you figure it out soon(:
Answer: x<45.9?
Step-by-step explanation:
25.5+24.3+24.8+23.5=98.1
So (x+98.1)/6<24?
x<45.9?
find the equivalent fractionsss with large denominatorsss
Answer: 27/45
Step-by-step explanation:
[tex]\displaystyle\\\frac{3}{5} =\\\\\frac{3}{5}*1=\\\\ \frac{3}{5}*\frac{9}{9} =\\\\\frac{3*9}{5*9}= \\\\\frac{27}{45}[/tex]
In the diagram, what is the ratio of patterned circles to plain circles?
Four arrays of circles are represented. First array has a plain circle. Second array has 4 patterned circles and 1 plain circle. Third array has 1 patterned circle and 4 plain circles. Fourth array has a plain circle.
The ratio of the patterned circles to plain circles is 6 : 7.
We are given the four arrays of the circles.
In the first array, we have only 1 plain circle.
In the second array, we have 4 patterned circles and 1 plain circle.
In the third array, we have 1 patterned circle and 4 plain circles.
In the fourth array, we have only 1 plain circle.
So, total patterned circles = 5 + 1
Total patterned circles = 6
Total plain circles = 1 + 1 + 4 + 1
Total plain circles = 7
Ratio of patterned circles to plain circles will be given as:
6 : 7
Therefore, we get that, ratio of the patterned circles to plain circles is 6 : 7.
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set up the equation relating the new ratio of broth to solution to the new percentage of broth to solution. 25/60
The new percentage of broth to solution 25/60 is 41.67
Broth, also known as bouillon is a savory liquid made of water in which meat, fish or vegetables have been simmered for a short period of time .It can be eaten alone, but it is most commonly used to prepare other dishes, such as soups.
Commercially prepared liquid broths are available, typically chicken, beef, fish, and vegetable varieties. Dehydrated broth in the form of bouillon cubes were commercialized beginning in the early 20th century.
Broths have been used as a nutrition source for the sick in Great Britain since at least the early 1700s, such as for dysentery patients
Let,
60 represents the 100% of the broth to solution
25 represents the x percentage of the broth to solution
Now,
Solving for the 25 which represents the x percentage of the broth to solution.
25/100 = x/100*
25/60 = x/100*x
25(100) = 60x
x = 2500/60
x = 41.67
Therefore,
25 represents the 41.67 percentage of the broth to solution.
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Answer:
a) 25/60=x/100
Step-by-step explanation:
m∠K=(6x+12)°. Find the measure of the complement of ∠K.
A. (102 + 6x)°
B. (112 + 6x)°
C. (67 − 6x)°
D. (78 − 6x)°
The measure of the complement of angle K is (78 - 6x)°. The correct option is D. (78 − 6x)°
Complement of an AngleFrom the question, we are to determine the complement of the given angle measure
From the given information, the measure of angle K (m ∠K) is (6x + 12)°
NOTE: If two angles are complementary, the measures of the angles sum up to 90°
Let the complement of angle K be angle L.
Thus,
∠K + ∠L = 90°
(6x + 12)° + ∠L = 90°
6x° + 12° + ∠L = 90°
∠L = 90° - 12° - 6x°
∠L = 78° - 6x°
∠L = (78 - 6x)°
Hence, the measure of the complement of angle K is (78 - 6x)°. The correct option is D. (78 − 6x)°
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the following are like terms and can be combined together through addition: 5x and 3y question 2 options: true false brainly
It is false that 5x and 3y are like terms. They can not be combined together through addition.
Like terms are those who encompass the same variables raised to the identical power. The most effective difference is within the numerical coefficients. only we are able to integrate like terms in an expression. To make algebraic formulation simpler to work with, we integrate like phrases to shorten and simplify them.to combine like phrases, upload the coefficients while retaining the variables consistent.We integrate like terms to form one term.in contrast to terms are algebraic words that don't have the equal coefficients and can't be raised to the identical strength.An algebraic expression with unlike phrases is 5x + 3y as it consists of wonderful variables, x and y, and they're not raised to the same power.To learn more about like terms, visit :
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4x1+6-9x3-6; answer 7
Add Brackets Or Parentheses to solve
Answer:
-23
Step-by-step explanation:
Remember Bedmas/Pedmas
P/B = Bractets or parentheses ( )
E = Exponents 3⁵
D = Division ÷
M = Multiply ×
A = Addition
S = Subtract
(4x1)+6-9x3-6
4+6-(9×3)-6
(4+6)-27-6
(10-27)-6
-17-6
-23
anna bought 8 tetras and 2 rainbow fish for her aquarium. the rainbow fish cost $6 more than the tetras. she paid a total of $37.
Answer-
The cost of one tetra is $2.5 and one rainbow fish is $8.5
Explanation
Let the cost one tetra be 'x';
Cost of rainbow fish = x + 6;
According to question;
8x + 2(x + 6) = 37;
10x = 25
x = $2.5;
the amount or equivalent paid or charged for something : price
The average cost of a university training has gone up dramatically.
the outlay or expenditure (as of attempt or sacrifice) made to acquire an item
He executed repute, but at the fee of dropping numerous buddies.
loss or penalty incurred specially in gaining some thing
the price of lives during war
three
costs plural : charges incurred in a judicial process
particularly : those given by the law or the courtroom to the triumphing party in opposition to the dropping birthday party
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Determine the values of x in the equation x2 = 64.
x = ±32
x = 32
x = ±8
x = −8
Answer:
32 or +-8 depending on question
Step-by-step explanation:
If question is 2x = 64, then x= 32
If question is x^2 = 64, then x= +-8
what is the sum of 5x and 9x
Answer:
14x
Step-by-step explanation:
We just add the bases because they have the same variable terms, (they are like terms)
9 + 5 = 14
14x
7. Which statements about the values of 7.055
and 70.55 are true? Select all that apply.
7.055 is 10 of 70.55.
7.055 is 100 of 70.55.
70.55 is 10 times 7.055.
70.55 is 100 times 7.055.
7.055 is 10 times 70.55.
The statement which is true to the values of 7.055 and 70.55 are true is:
70.55 is 10 times 7.055. is true.
Given, the values are 7.055 and 70.55
statement A.
7.055 is 10 of 70.55
= 70.55×1/10
= 705.5
⇒ 705.5 ≠ 7.055
Statement B.
7.055 is 100 of 70.55.
= 70.55×1/100
= 0.7055
⇒ 0.7055 ≠ 7.055
Statement C.
70.55 is 10 times 7.055.
= 10 × 7.055
= 70.55
⇒ 70.55 = 70.55
hence true.
Statement D.
70.55 is 100 times 7.055.
= 100 × 7.055
= 705.5
⇒ 705.5 ≠ 70.55
Statement E.
7.055 is 10 times 70.55.
= 10 × 70.55.
= 705.5
⇒ 705.5 ≠ 70.55
hence the correct option is 70.55 is 10 times 7.055.
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Please help me!!! In calculus
Answer::
:i
Step-by-step explanation:
.
How to convert 7/18 into a decimal number using long division
The conversion of 7/18 into a decimal number using long division would be 7/18 = 0.39
In this question, we have been given a fraction.
We need to convert given fraction into a decimal number using long division.
Given fraction: 7/ 18
Consider the long division of 18 ÷ 7
0.388
_________
18 ) 7
- 0
__________
70
- 54
__________
160
- 144
__________
160
- 144
___________
16...
This means, the 7/18 = 0.3888...
If we round the number 0.3888... to two decimal places then it would be, 0.39
Therefore, the conversion of 7/18 into a decimal number using long division would be 7/18 = 0.39
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In a class of 36 students for every four students who could only speak one language, five students could speak more than one language. How many students in the class can speak more than one language?
7 students in the class can speak more than one language.
Given that,
Total student = 36
For every four students who could only speak one language
For every five students who could only speak one language.
To determine how many students in the class can speak more than one language.
Since,
For every five students who could only speak one language,
= 36 / 5
quotient = 7 ; remainder = 1
Implies that, 7 students in the class can speak more than one language.
Thus, 7 students in the class can speak more than one language.
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25 points plus brainliest
Answer:
x = -7
Let the first integer be x.
Given the next two integers are consecutive, it would be: x+1, x+2
The problem states: "4 more than the smaller number plus twice the 3rd number is 7 less than the 2nd number."
Translating English to Algebra, you'll get:
(x + 4) + 2(x + 2) + 7 = x + 1
x + 4 + 2x + 4 + 7 = x + 1
3x + 15 = x + 1
2x = -14
x = -7
That would be the third option.
What’s the answer to 4x(x+3) < -24
The answer to the inequality is expressed as x< 1 and x< -4
What are inequalities?Inequalities are mathematical expressions having both sides unequal or rather not equivalent to each other.
Given the inequality;
4x (x+3) < -24
First, expand the bracket
4x² + 12x < - 24
Let's turn to quadratic inequality
4x² + 12x - 24 < 0
Factorize further
4 ( x² + 3x - 4) < 0
4 ( x² + 4x - x - 4) < 0
4 ( x(x + 4) - 1 (x + 4) ) < 0
4(x - 1) ( x + 4) < 0
expand the bracket
4x - 4 < 0
x < 1
And
4x + 16 < 0
x < -4
Thus, the answer to the inequality is expressed as x< 1 and x< -4
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