Answer:
6.5 square units
Step-by-step explanation:
There are MANY ways to do this problem, most of them involving breaking it into 3 or four shapes. But this one is easier if you do most of it by taking out the squares and half squares.
Squares - 3
Half squares - 4 (totals 2 squares)
Triangle - 1 - 1/2bh = 1/2x1x3 = 1.5
TOTAL = 3+2+1.5=6.5
Answer:
6 sq. un
Step-by-step explanation:
please tell me how to solve this step
fast correct answer will be marked brainliest and other copies from website will be reported........
Answer:
See Explanation
Step-by-step explanation:
From your question, what you need is the explanation;
Given that [tex](x - 1 - \sqrt{2})(x - 1 + \sqrt{2})[/tex] is a factor of p(x)
Required: Simplify
[tex](x - 1 - \sqrt{2})(x - 1 + \sqrt{2})[/tex]
Group the expression above
[tex]((x - 1) - \sqrt{2})((x - 1) + \sqrt{2})[/tex] -------- Expression 1
The expression can be expanded using difference of two squares;
[tex](a - b)(a + b) = a^2 - b^2[/tex]
By comparison, Expression 1 can be rewritten as
[tex](x - 1)^2 - (\sqrt{2})^2[/tex]
Open both brackets
[tex](x - 1)(x - 1) - (\sqrt{2})(\sqrt{2})[/tex]
Expand the above expression
[tex](x(x - 1) -1(x - 1)) - 2[/tex]
[tex](x^2 - x -x + 1)- 2[/tex]
[tex](x^2 - 2x + 1)- 2[/tex]
Remove bracket
[tex]x^2 - 2x + 1- 2[/tex]
[tex]x^2 - 2x - 1[/tex]
Hence,
If
[tex](x - 1 - \sqrt{2})(x - 1 + \sqrt{2})[/tex] is a factor of p(x)
Then
[tex]x^2 - 2x - 1[/tex] is a factor of p(x)
- 2x
f(x)= x +4,
4x - 7
XS-10
- 10
X2
20. Use the piecewise function to evaluate points f(-1), f(2), and f(12).
O A. f(-1) = 3, f(2) = 1, and f(12) = 41
B. f(-1) = 3, f(2) = 6, and f(12) = 41
O C. f(-1) = 2. f(2) = 1, and |(12) = 41
D. f(-1) = 2. f(2) = 6, and f(12) = 41
Answer:
[tex]f(-1) = 3[/tex]
[tex]f(2) = 6[/tex]
[tex]f(12) = 41[/tex]
Step-by-step explanation:
Given
The piece wise function can be split to:-
[tex]f(x) = -2x[/tex] [tex]x\leq -10[/tex]
[tex]f(x) = x + 4[/tex] [tex]-10<x\leq 2[/tex]
[tex]f(x) = 4x - 7[/tex] [tex]x> 2[/tex]
Required
f(-1), f(2) and f(12)
To solve for each of these functions, we first check the range they fall into, then we execute the corresponding function
Solving f(-1)
-1 is within the range of [tex]-10<x\leq 2[/tex]
Hence; we make use of [tex]f(x) = x + 4[/tex]
Substitute -1 for x
[tex]f(-1) = -1 + 4[/tex]
[tex]f(-1) = 3[/tex]
Solving f(2)
2 is within the range of [tex]-10<x\leq 2[/tex]
Hence; we make use of [tex]f(x) = x + 4[/tex]
Substitute 2 for x
[tex]f(2) = 2 + 4[/tex]
[tex]f(2) = 6[/tex]
Solving f(12)
12 is within the range of [tex]x> 2[/tex]
Hence; we make use of [tex]f(x) = 4x - 7[/tex]
Substitute 12 for x
[tex]f(12) = 4(12) - 7[/tex]
[tex]f(12) = 48 - 7[/tex]
[tex]f(12) = 41[/tex]
The probability of picking a quarter from a jar of coins is 0.125. If Noah has 250 coins in the jar, about how many quarters are in the jar?
Answer:
31.25
Step-by-step explanation:
There are about 31 quarters in a the jar so if you need to round do accordingly! Have a good day
Answer:
31 quarters
Step-by-step explanation:
Have an equation set
Then you solve the equation you get 31.25
Round the number since you can't have 31.25 quarters it just doesn't make sense.
Round it to 31
Therefore your answer is 31 quarters
Hope this Helps!
If f(x) = 1/6 x-8, then f^-1(x)=
Answer:
f^-1(x) is 6x + 48
f(x) = 1/6x - 8
To find f^-1(x) equate f(x) to y
That's
f(x) = y
y = 1/6x - 8
Next interchange the terms
We have
x = 1/6y - 8
Make y the subject
Multiply through by 6
We have
6x = y - 48
y = 6x + 48
Therefore f^-1(x) is 6x + 48
Hope this helps you
Answer:f(-1/6)-8
Step-by-step explanation:
cuz
help help help help plz plz
Answer:
Pretty sure Its B
Step-by-step explanation:
Answer:
I believe it's the third answer: 2b+20=240
Step-by-step explanation:
2b=The two buses
$20= the tip
240= the money raised
I NEED THIS BY 11:50!!! PLEASE HELP, WILL MARK BRAINIEST IF CORRECT!
Use these expressions to answer the questions.
Expression A: (x + y)
Expression B: (x) + (y)
Choose a positive value for x and positive value for y. Then, do the following steps:
Substitute the x- and y- values into expression A and expression B.
Simplify.
Write the result of each expression. Repeat these steps for the next three situations: Choose a negative value of x and a negative value y. Choose a positive value of x and a negative value of y. Choose a negative value of x and a positive value of y. 2.
Describe any patterns you notice. Are the two expressions ever equal? Can one be greater than the other?
Answer:
Both expressions are equal. One expression cannot be greater than the others.
Step-by-step explanation:
The given expressions are:
A: (x + y)
B: (x) + (y)
Let x = a and y = bA: (a+b) = a+b
B: (a)+(b) = a+b
Let x = -a and y = -bA: (-a+ (-b)) = -a-b
B: (-a)+(-b) = -a-b
Let x = a and y = -bA: (a+(-b)) = a-b
B: (a)+(-b) = a-b
Let x = -a and y = bA: ((-a)+b) = -a+b
B: (-a)+(b) = -a+b
We can see the pattern that both expressions are always equal to each other, no matter what value of x and y you plug in. One expression cannot be greater than the other
Graph the equation by plotting three points -3y=x-6
Answer:
Use a graphing calc
Step-by-step explanation:
find equation of vertical line through (-5, -3)
Answer:
x = -5
Step-by-step explanation:
Given that it is a vertical line, we know that it will only go through one x-value.
We are also given a point, (-5, -3).
This point tells us that the vertical line only goes through the x-value -5, so the equation will be x = -5.
Asap answer Needed (desperate)
Answer:
Part 1: [tex]2l+2w=34[/tex] Part 2: 10.5 Units
Step-by-step explanation:
We can find perimeter of a rectangle using formula [tex]2l+2w=P[/tex]. We are given [tex]w[/tex], which is 6.5. Put this into the equation.
[tex]2l+2(6.5)=342l+13=34\\2l=21\\l=10.5[/tex]
So, length(l) of the rectangle is 10.5 units.
Answer:
10.5
Step-by-step explanation:
The perimeter of rectangles is calculated by adding all lengths together
34 units = length + length + width +width
since width is given as 6.5 units
2l + 2 × 6.5 = 34 (l : length)
2l + 13 = 34
2l = 21
l = 10.5
please help!!!!!!!!!!
Answer:
Flipped across the y-axis and then rotated -90 degrees
Step-by-step explanation:
A large college wishes to determine the average SAT scores for students who apply from New York. They surveyed 95 students from New York and discovered a mean SAT score of 1509. Which of the statements below represent the statistic and the population, respectively, of the survey?
I. The mean SAT score of all students from New York
II. The mean SAT score of 95 students from New York
III. The 95 students who apply to the college from New York
IV. All students who apply to the college from New York
Statements I and II
Statements II and III
Statements I and IV
Statements II and IV
Answer:
statements 2 and 3
B
Step-by-step explanation:
express [tex]\frac{123}{65}[/tex] as a continuous fraction.
Answer: 1.89230769231
Step-by-step explanation:
PLS RESPOND ASAP 7th grade math
Answer:
3/4
Step-by-step explanation:
The constant of proportionality is y/x
3/4
BD is a diameter of circle Q. If M_ACB=30°, what is M<DBA?
A. 30°
B. 50°
C. 60°
D. 70°
E. 90°
Find the measures of the angles of the ∆ABC if m∠A : m∠B : m∠C = 2:3:4.
Answer:
m∠A = 2x = 2*20 = 40
m∠B = 3x = 3*20 = 60
m∠C= 4x = = 4*20 = 80
Step-by-step explanation:
we know sum of angles of triangle is 180 degrees
given
m∠A : m∠B : m∠C = 2:3:4
let the angle be
m∠A = 2x
m∠B = 3x
m∠C= 4x
we have taken such angle by applying rule of indices where
a:b:c = ax:bx:cx
which means that if we multiply all term of ratio by same number ratio remains same
thus,
2x+3x+4x = 180
9x = 180
x = 180/9 = 20
Thus,
m∠A = 2x = 2*20 = 40
m∠B = 3x = 3*20 = 60
m∠C= 4x = = 4*20 = 80
2. (07.02 MC)
An equation is shown below:
4(2x – 5) = 4
Part A: How many solutions does this equation have? (4 points)
Part B: What are the solutions to this equation? Show your work. (6 points)
Answer:
A. One solution.
B. x = 3.
Step-by-step explanation:
4(2x - 5) = 4
4*2x + 4*-5 = 4
8x - 20 = 4
8x = 24
x = 3.
The given equation has one solution and the solution to the given equation is 3
Solution to linear equationLinear equation has a leading degree of 1. Given the equation
4(2x - 5) = 4
Divide both sides by 4
4(2x-5)/4 = 4/4
2x - 5 = 1
Add 5 to both sides
2x = 1 + 5
2x = 6
x = 3
Hence the given equation has one solution and the solution to the given equation is 3
Learn more on linear equation here: https://brainly.com/question/14323743
Noah is planning his birthday party. He is deciding between three themes: space, safari, and comics. He also has to determine where he wants his party, at a skating rink or a park. Lastly, he needs to pick the day of the week that the party will happen. His options are Friday, Saturday, or Sunday. How many different possible party outcomes does Noah have with all of these options?
The number of different possible party outcomes does Noah have with all of the given options is 18 ways.
What is the Permutations?Permutations are different ways of arranging objects in a definite order. It can also be expressed as the rearrangement of items in a linear order of an already ordered set. The symbol nPr is used to denote the number of permutations of n distinct objects, taken r at a time.
Given that,
Number of themes = 3
Number of party places = 2
Number of days = 3
Number of outcomes = 3×2×3
= 18 ways
Therefore, the number of different possible party outcomes does Noah have with all of the given options is 18 ways.
To learn more about the permutation visit:
https://brainly.com/question/3867157.
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For the x-values 1,2,3, and so on the y values of a function form a geometric sequence that decreases in value. What type of function is it? A. increasing linear. B. Decreasing linear C. exponential growth D. exponential decay
Answer:
D
Step-by-step explanation:
BIG BRAIN
Makes no sense yea put D like it’s gonna be the answer for d on mine
Which document do you need to have on hand when preparing to file your tax return?
O A.
auto insurance card
OB.
birth certificate
OČ.
driver's license
OD.
Form W-2
O E.
Form W-4
Answer:
w-2
Step-by-step explanation:
To file your return, you'll need the following on hand: Your W-2: This form will come from your company and list not only your salary for the year but the amount of taxes withheld along the way. You're required to file your W-2 along with your taxes, so if you're a salaried employee, this form is non-negotiable.
The document you need to have on hand when preparing to file your tax return is Form W-2. The correct option is D.
What is tax return?A tax return is a document filed with the tax authorities by individuals or businesses to report their income, expenses, and other relevant financial information in order to calculate their tax liability or refund.
It is usually filed once a year, and the information on it is used to determine whether the taxpayer owes additional taxes or is eligible for a refund.
Form W-2 is a form that an employer provides to an employee at the end of the year that shows the employee's total earnings as well as the amount of taxes withheld from those earnings.
It is a necessary document for accurately preparing and filing an individual's tax return.
Thus, the correct option is D.
For more details regarding tax return, visit:
https://brainly.com/question/21214035
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1) -2q-5= -11 2)3(8+k) = 33 3)4/6=x/9 4)6(y+3)=24 5)4k+8=26 6)8y=6+2y 7)3x-7=20 pls help!!!!!!!!!
Answer:
1) -2q-5= -11
-2q = -11+5
q = -6/-2 =3
2) 3(8+k) = 33
24 + 3k = 33
3k = 33-24
K = 9/3 = 3
3) 4/6=x/9
By cross multiplication
4x9 = Xx6
36 = 6x
So, x = 6
4) 6(y+3)=24
6y + 18 = 24
y = (24-18)/6 = 1
5)4k+8=26
4k = 26-8
k = 18/4 = 4.50
6)8y=6+2y
8y - 2y = 6
6y = 6
So, y = 1
7)3x-7=20
3x = 20+7
x = 27/3 = 9
Answer: See below attachment
What is the greatest common factor of the polynomial below?
16x2 - 12x
Answer:
The GCF is 4x.
Step-by-step explanation:
Determine the greatest common factor of the given terms. The greatest common factor or GCF is the largest factor that all terms have in common. Factor out (or divide out) the greatest common factor from each term.4x( 4x -3 )
Hope this helped you!
can someone simplify (3x)^4
Answer:
81x^4
Step-by-step explanation:
Apply the product rule to 3x
3^4x^4
Raise 3 to the power of 4
81x^4
please mark me brainliest!
Find the value of X
A. 50
B. 36
C. 18
D. 25
A.50
I'm sure its correct
Answer:
It's (A) 50
Step-by-step explanation:
Questions in image below
Answer:
domain 0<=x<=infinty or [0,infinity)
Range 0<=y<=infinity or [0,infinity
Step-by-step explanation:
Find the measures of all four angles if 3·(m∠1+m∠3) = m∠2+m∠4.
Answer:
Step-by-step explanation:
m∠1=m∠3
m∠2=m∠4
3*(m∠1+m∠3)=m∠2+m∠4
3*(m∠1+m∠1)=m∠2+m∠2
3×2 m∠1=2 m∠2
m∠2=3 m∠1
now m∠1+m∠2=180°
m∠1+3 m ∠1=180
4 m∠1=180
m∠1=180/4=45°
m∠3=45°
m∠2=180-m∠1=180-45=135°
m∠4=135°
Which number line represents the solutions to |-2x| = 4?
Answer:
Step-by-step explanation:
Your answer is c
the absolute value of -2x would be positive 2x making x =2 and -2
The times for completing one circuit of a bicycle course are normally distributed with
a mean of 72.5 minutes and a standard deviation of 6.5 minutes. An association
wants to sponsor a race but will eliminate the bottom 75% of riders. In a trial run,
what should be the cutoff time?
Answer:
The answer is 76.9 rounded or rounds.
Step-by-step explanation:
Solution
Given that:
Mean = μ = 72.5
Standard deviation = σ = 6.5
Now
By applying the standard normal table we have the following:
P(Z < z) = 75%
= P(Z < z)
= 0.75
Thus
z =0.67 by using the standard normal z table
Applying the z-score formula we have:
x = z * σ + μ
x = 0.67*6.5+72.5
x= 76.855 ≈ 76.9
Therefore the cutoff time is 76.9 rounds.
A lottery ticket costs $5. You pick 3 two-digit numbers (anything from 00 to 99) in order. If you match the first number only, you win $200. If you match the first two numbers and not the third, you win $5000. If you match all three numbers, you win $100,000. In two or more complete sentences, explain whether or not the game is fair. In your explanation, include all necessary calculations.
Answer:
00 to 99 are 100 numbers.
If you match the first number only, you win $200. The Probability for this is 1/100.
If you match the first two numbers and not the third, you win $5000. The Probability for this is 1/50.
If you match all three numbers, you win $100,000. The Probability for this is 3/100.
And, If you are a customer, You will think is fair for you.
But if you are the lottery tickets company, you will think is not fair for you.
It depends who you are.
the game isn't fair because 100,000/3=3333 1/3, so each number should be worth $3333.3333...... dollars but you can't really give 1/3 dollars so the game is impossible to be fair. Also, if you match the first two numbers you apparently get $5000. That's also not fair because each number is worth $50 dollars more than if you get the first number matched. So, the game isn't fair but it will be pretty much impossible to be fair.
A researcher posts a newspaper advertisement offering 520 in exchange for participation in a short study. The researcher accepts the first five people who respond to the advertisement which
of the following statements is true about the sample?
It is not a valid sample because it is only a short study
It is a valid sample because money was offered to participants
It is a valid sample because the first five people were selected to participate
It is not a valid sample because it is not a random sample of the population
Answer:
It's a valid sample because the first five people were selected to participate.
Step-by-step explanation:
True because random people who saw the advertisement responded. By chance, not every person who saw the advertisement answered, therefore it was random, but it would be more random if he decided to reject the second, fourth, sixth, and eighth person, and only the first, third, fifth, seventh, and ninth were chosen.
The graph of y=ax^2+bx+c passes through points (0,5), (1,10), and (2,19). Find a+b+c.
Answer: a = 2 b = 3 c = 5
Literally a+ b+c = 10, but I don't think that's what the question means to ask.
the equation is 2x² +3x + 5
Step-by-step explanation: Substitute the values of the given coordinates into the formula and use algebra (solve a system of equations by substitution and elimination) to get the values of a,b & c
y=ax²+bx+c using (0,5), (1,10), and (2,19)
5=a(0)²+b(0)+c becomes 5= 0+0 + c .so we find c = 5
10=a(1)²+b(1)+c becomes 10 = a + b + c
19=a(2)²+b(2)+c . becomes 19 = 4a + 2b + c
Substitute the 5 for c. Then rewrite
10 = a + b + 5 becomes 5 = a+ b to eliminate b multiply this be (-2)
(-2)( 5 = a+ b) .to get -10 = -2a - 2b
19 = 4a + 2b + 5 becomes 14 = 4a + 2b
_______________ Add these two
14 = 4a + 2b
-10 = -2a - 2b this will eliminate the "b" term
4 = 2a divide both sides by 2 so you have a = 2
substitute in 10=a(1)²+b(1)+5 to find b
10=2(1)²+b(1)+5 .becomes 5 = 2 + b Subtract 2 from both sides
b = 3
So now you have all three values:
a = 2 b= 3 c = 5
I am attaching the graph. I hope this deserves Brainiest.
Best wishes in your studies!