Answers
Answer:
here
x=2 then,
3*2^2 - 2*2+1
3*4-4+1
12-4+1
9
Step-by-step explanation:
Simplify:
3x^2 - 2x + 1
=> 3(2)^2 - 2(2) + 1 [∵ x = 2 (Given)]
=> 3(4) - 2(2) + 1
=> 12 - 4 + 1
=> 13 - 4
=> 9 Ans.
Related Questions
How many 1/4 cup servings are in 4 cups?
Answers
Answer:
16
Step-by-step explanation:
there are 4 1/4 servings in one cup
there are 4 cups so 4×4
Answer:
The answer of this would be 4.
Step-by-step explanation:
1/4 + 1/4 + 1/4 + 1/4 = 4
please respond quickly plz and thank you at least by 2:38
Answers
Answer:
bru im confused
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
because I think it makes sense if I'm wrong I'm am very sorry
Multiply the binomials: (x+6)•(x-8)
Answers
Answer:
[tex]\sf x^2-2x-48[/tex]
Step-by-step explanation:
[tex]\begin{aligned} &\sf (x+6)(x-8) \\=&\sf x^2-8x+6x-48 \\=&\boxed{\sf x^2-2x-48} \end{aligned}[/tex]
Marsha has $400 in a savings account. The interest rate is 5% per year and is not compounded. How much will she have in total in 1 year?
Answers
The total amount in the account after 1 year will be $420
Based on the information given, the following can be deduced:
Principal = $400
Interest rate = 5%
Time = 1 year
Therefore, the simple Interest will be:
= PRT/100
= ($400 × 5 × 1)/100
= $2000/100
= $20
Therefore, the amount will then be:
= Principal + Interest
= $400 + $20
= $420
Therefore, the total amount is $420
Read related link on:
https://brainly.com/question/24989563
if 42 watts are used in 3 seconds how many watts are used per second?
Answers
Answer:
14 watts per second
Step-by-step explanation:
42 watts/3 seconds=14 watts per second
Rewrite each number without using an exponent.
5. 5 to the second power
6. 12 to the second power
7. 4 to the third power
8. 6 to the 1st power
9. 4 to the 2nd power
10. 100 to the 1st power
Answers
5. 25
6. 144
7. 64
8. 6
9. 16
10. 100
5. 5 x 5
6. 12 x 12
7. 4 x 4 x 4
8. 6 x 1
9. 4 x 4
10. 100 x 1
I hope this helps
You are looking at the New York ball drop on New Year’s Eve at a distance of 100 m away from the base of the structure. If the ball drops at a constant rate of 2 m/s, what is the rate of change of the
angel between you and the ball when the angle is ( ?
Answers
The question is an illustration of related rates.
The rate of change between you and the ball is 0.01 rad per second
I added an attachment to illustrate the given parameters.
The representations on the attachment are:
[tex]\mathbf{x = 100\ m}[/tex]
[tex]\mathbf{\frac{dy}{dt} = 2\ ms^{-1}}[/tex] ---- the rate
[tex]\mathbf{\theta = \frac{\pi}{4}}[/tex]
First, we calculate the vertical distance (y) using tangent ratio
[tex]\mathbf{\tan(\theta) = \frac{y}{x}}[/tex]
Substitute 100 for x
[tex]\mathbf{y = 100\tan(\theta) }[/tex]
[tex]\mathbf{\tan(\theta) = \frac{y}{100}}[/tex]
Differentiate both sides with respect to time (t)
[tex]\mathbf{ \sec^2(\theta) \cdot \frac{d\theta}{dt} = \frac{1}{100} \cdot \frac{dy}{dt}}[/tex]
Substitute values for the rates and [tex]\mathbf{\theta }[/tex]
[tex]\mathbf{ \sec^2(\pi/4) \cdot \frac{d\theta}{dt} = \frac{1}{100} \cdot 2}[/tex]
This gives
[tex]\mathbf{ (\sqrt 2)^2 \cdot \frac{d\theta}{dt} = \frac{1}{100} \cdot 2}[/tex]
[tex]\mathbf{ 2 \cdot \frac{d\theta}{dt} = \frac{1}{100} \cdot 2}[/tex]
Divide both sides by 2
[tex]\mathbf{ \frac{d\theta}{dt} = \frac{1}{100} }[/tex]
[tex]\mathbf{ \frac{d\theta}{dt} = 0.01 }[/tex]
Hence, the rate of change between you and the ball is 0.01 rad per second
Read more about related rates at:
https://brainly.com/question/16981791
I will brainlist who can answer this 3 Questions!
Answers
Answer: 20. A 21. C 22. B
Step-by-step explanation: image attached below for explanation
Helpppppp omggg I’m gonna fail
Answers
Answer:
D.
Step-by-step explanation:
please help me please
Answers
Here's the solution in attachment :
Black Tuesday refers to the day:
Herbert Hoover was elected president.
World War I started.
the U.S. stock market had one of its worst days ever.
All of these choices are correct.
Answers
Answer:
all are correct
Step-by-step explanation:
Which quadratic function has an axis of symmetry of x = 3?
Answers
Answer:
the answer is: y= -x²+6x+2
Mr. Ross washed
1/4
of his laundry. His son washed
2/5
of it. Who washed most of the laundry? How much of the laundry still needs to be washed?
Answers
Answer:
the son. and 7/20
Step-by-step explanation:
you would ave the denominator to make them both 20 then the fractions would become 5/20 and 8/20 so it would be the son who washed the most. then add them together and get 13/20 so 7/20 laundry needs to be done
x^2-25y^2+6x+18=0
help me
Answers
Answer:
im not very good at that but my best problematic ratio is deviding the x ponet by the ^ and then using your y ponet multiplyed by your first couple of numbers which are "x^2"
20POINTS Given colon g (x) = StartRoot x minus 4 EndRoot and h (x) = 2 x minus 8. What is g(h(10))?
Answers
h(10) = 12
g(12) = root 12 - 4
q(12) = root 8
g(h(10)) = 2 root 2
The value of the function g(h(10)) will be 2√2.
What is a function?A function is defined as the expression that set up the relationship between the dependent variable and independent variable.
Given that g(x) is √(x-4) and h(x) is 2x - 8. The value of the function g(h(10)) will be calculated as:-
h(x) = 2x - 8
At x = 10 the value of the function h(x) will be:-
h(10) = ( 2 x 10 ) - 8
h(10) = 20 - 8
h(10 ) = 12
Calculate the value of the function g(h(10)):-
g(h(10)) = √(x-4)
g(h(10)) = √(h(10)-4)
g(h(10)) = √( 12 -4 )
g(h(10)) = √( 8 )
g(h(10)) = 2√2.
Therefore, the value of the function g(h(10)) will be 2√2.
To know more about functions follow
https://brainly.com/question/27918659
#SPJ2
2. A baseball game has a total of 9 innings. In each inning, there are 2 teams that each have
to make 3 outs in order for the inning to be complete. Which statement is true?
9
A. Each out is of all the outs in a 9-inning baseball game.
B. Each out is of all the outs in a 9-inning baseball game.
C. Each out is of all the outs in a 9-inning baseball game.
27
D. Each out is
of all the outs in a 9-inning baseball game.
18
Answers
Using proportions, it is found that each out is [tex]\frac{1}{54}[/tex] of all the outs in a 9-inning baseball game.
Supposing a 9-inning baseball game, each team has the right to 27 outs.
Two teams, thus, there are [tex]2 \times 27 = 54[/tex] outs.
This means that each out in a game [tex]\frac{1}{54}[/tex] of all the outs in a 9-inning baseball game.
A similar problem is given at https://brainly.com/question/24342347
greatest common factor for 50x^5 and 40x^3
Answers
Answer:
[tex]10x^{3}[/tex]
Step-by-step explanation:
hope this helps.
Help please! I need help with my math question!
Answers
Answer:
cc
Step-by-step explanation:
I need a equation written for this pleeeeeaaaassse! The constant of proportionality is 2.
but I need an equation for this, I have an attachment for you to help. g= c is not correct sorry.
Answers
It sounds like your teacher wants g = 2c as the answer. The constant of proportionality simply tells us what to multiply the input variable by, to get the output variable.
It's similar to saying y = 2x, but we use c in place of x and use g in place of y.
Find the discount on a leather recliner with a regular price of $240 if the recliner is 10% off. What is the sale price of the recliner?
The discount on the leather recliner is $___
Answers
Answer:
Sale price = $216, Discount = 24$
Step-by-step explanation:
100%-10%=90%
240 x .90 = $216 (sale price)
240-216 = $24 off
Here is a part 2 to my question
Answers
Answer:
1st is (D.) 2nd is (C.) 3rd is (D.) 4th is (A.) 5th is (C.)
2. If h(x) = 5x - 7 , for what value of x is h(x) = 23
Answers
Answer:
x=6
Step-by-step explanation:
5x-7=23
5x-7 +7=23+7
5x=30
30/5=6
x=6
what is the intersection of planes m and L
a. point D
b. line ab
c. line ce
d. they do not intersect
Answers
Answer:
d. they do not intersect
Step-by-step explanation:
Prove the following relations:
1) (1 - cos²A) (1 + tan²A) = tan²A
Answers
Step-by-step explanation:
(1 - cos²A) (1 + tan²A) = tan²A
(sin²A)(sec²A) = tan²A
(sin²A)(1/cos²A) = tan²A
(sin²A)/(cos²A) = tan²A
tan²A = tan²A → Proved
Step-by-step explanation:
So, this way we can do. Thank you!
PLEASE HELP!! Will mark Brainliest!
This unit is about polynomial and rational functions. What is a polynomial? What is a rational function? Are all polynomials rational functions, why or why not?
Answers
Answer:
What is a polynomial?
- In mathematics, a polynomial is an expression consisting of indeterminates and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponentiation of variables
What is a rational function?
- In mathematics, a rational function is any function that can be defined by a rational fraction, which is an algebraic fraction such that both the numerator and the denominator are polynomials.
Are all polynomials rational functions?
.A function that cannot be written in the form of a polynomial, so no they are not all functions.
In how many ways can Carlos draw a blue or a green marble from a jar containing 30 blue marbles and 6 green marbles?
5
36
24
180
Answers
Answer:
5 ways
Step-by-step explanation:
He can draw in 5 ways
Answer:
36
Step-by-step explanation:
I chose 5 and missed it. Review says correct answer is 36
If i get good grades in 8th grade will it affect the classes I get in 9th grade?
Answers
Answer:
It will result if you have advanced classes or get an Ap class
Step-by-step explanation:
It will not affect your 9th grade..
Yet, you should work hard to achieve your aim and gain knowledge not for getting better marks.
List at least 4 common variable expenses someone might have each month.
Answers
Answer:
water, food, toliet paper, toothpaste
Step-by-step explanation:
Jim is going from Town A to Town B. Town B is located at (-4, 5). He makes a stop at his friend’s house, which is halfway along the trip. What are the coordinates of his stop?
Answers
Answer:
tạo độ của anh ấy dừng là:
Step-by-step explanat ion(:-2,2.5)
help me
ans should be well explained
Answers
Perimeter:-
[tex]\\ \sf\longmapsto 2(L+B)[/tex]
[tex]\\ \sf\longmapsto 2(40+30)[/tex]
[tex]\\ \sf\longmapsto 2(70)[/tex]
[tex]\\ \sf\longmapsto 140m[/tex]
Area
[tex]\\ \sf\longmapsto LB[/tex]
[tex]\\ \sf\longmapsto 40(30)[/tex]
[tex]\\ \sf\longmapsto 1200m^2[/tex]
= 2(Length + Breadth)
= 2(40 + 30)
= 2(70)
= 140m
Area of Rectangle:-= Length × Breadth
= 40 × 30
= 1200m^2
Therefore, The perimeter of the rectangle is 140m and the area of the rectangle is 1200m^2.
