Answer:
yes this is right that you have have done
Answer:
What is the constant speed of Fast Freddy?: 1/4
What is the constant speed of Speedy Sam? : 1/8
Who ran faster?: Freddy
Step-by-step explanation:
2021 edge
Need help with this ASAP
Given:
[tex](3x-2)^9[/tex]
To find:
The coefficient of [tex]x^6[/tex] in the expansion of [tex](3x-2)^9[/tex].
Solution:
We know that, in the expansion of [tex](x+y)^n[/tex],
[tex]T_{r+1}=^nC_rx^{n-r}y^r[/tex] ...(i)
[tex](3x-2)^9[/tex] has only one x and in [tex]x^6[/tex], the power of x is 6. It is possible if
[tex]n-r=6[/tex]
[tex]9-r=6[/tex]
[tex]9-6=r[/tex]
[tex]3=r[/tex]
Putting n=9, r=3, x=3x and y=-2 in (i), we get
[tex]T_{3+1}=^9C_3(3x)^{9-3}(-2)^3[/tex]
[tex]T_{4}=\dfrac{9!}{3!(9-3)!}\times (3x)^{6}(-8)[/tex]
[tex]T_{4}=\dfrac{9\times 8\times 7\times 6!}{3\times 2\times 1\times (9-3)!}\times (729x^{6})(-8)[/tex]
[tex]T_{4}=84\times (729)\times (-8)\times x^{6}[/tex]
[tex]T_{4}=-489888x^6[/tex]
Therefore, the coefficient of [tex]x^6[/tex] in the expansion of [tex](3x-2)^9[/tex] is -489888.
I hate school I’m supposed to be in 12th but I’m in 11th I’m doing my credit recovery classes it’s just exhausting for me
11. Jim travelled at a speed of 18km/h for 2 hours. What was the distance covered?
Answer:
d = 36 km
Step-by-step explanation:
Speed of Jim, v = 18 km/h
Time, t = 2 hours
We need to find the distance covered. We know that the speed of an object is equal to the distance covered by it divided by total time taken.
[tex]v=\dfrac{d}{t}\\\\d=v\times t\\\\d=18\ km/h\times 2\ h\\\\=36\ km[/tex]
So, he will cover 36 km.
9.
NOS
Maggie had $6856 in the bank.
She deposited another $1258 into her bank account.
How much more money must she deposit into her bank account
if she wants to have $9200 in the bank?
nts
3.2 Domain and Range
Score: 30/190 3/19 answered
Question 8
Complete the description of the piecewise function graphed below.
{
f(x) = {
{
+
2
+
8
8
if -6 ≤ x ≤ -1
if -1 < x≤2
if 2 < x≤6
the missing functions in the piecewise function are f(x) = - x - 4 for - 6 ≤ x ≤ - 1, f(x) = 4 for 1 < x ≤ 2 and f(x) = - 1 / 2 x - 6 for 2 < x ≤6.
We are given the graph of a piecewise function.
We need to complete the function to represent the graph completely.
We know that, a piecewise function is a function that has different functions for a particular set of values for x.
Here, we can see that:
For the values of x in between - 6 and - 1 that is - 6 ≤ x ≤ - 1, we get the function as:
f(x) = - x - 4
For the values of x in between - 1 and 2 that is - 1 < x ≤ 2, we get the function as:
f(x) = 4
For the values of x in between 2 and 6 that is 2 < x ≤6, we get the function as:
f(x) = - 1 / 2 x - 6
Therefore, we get that, the missing functions in the piecewise function are f(x) = - x - 4 for - 6 ≤ x ≤ - 1, f(x) = 4 for 1 < x ≤ 2 and f(x) = - 1 / 2 x - 6 for 2 < x ≤6.
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What is K=a-y;y solve for
giving brainliest to whoever gets it right
Answer: i know the answer
Step-by-step explanation: plz plz pick me
Answer:
umm... i'm not sure. all i know is that they were rotated and reflected. sorry
Step-by-step explanation:
the dot plot shows the heights of the players on two basketball team
Answer:
H. Team B has a greater range in player heights than Team A has.
Step-by-step explanation:
I just took the quiz
Need help with 5 and 6 will give branliest to the first to answer
Answer:
j
Step-by-step explanation:
Answer:
i think the first on is A.
Step-by-step explanation:
Solve the area formula fora triangle, A= 1/2bh, for b. A. b=A/2h. B. b=2h/A. C.b=h/2A. D.b=2A/h
Answer:
D. b=2A/hStep-by-step explanation:
GivenA= 1/2bhSolving for b A= 1/2bh ⇒ given2A = bh ⇒ multiply by 22A/h = b ⇒ divide by hb = 2A/hOption D is correct
What is the y intercept of this line?
Answer:
2
Step-by-step explanation:
2 is the y intercept of this line. y intercept is the point where the line intersects with y axis.
A spinner with 6 equally sized slices has 3 yellow slices, 1 red slice, and 2 blue slices. The dial is spun and stops on a slice at random. What is the probability
that the dial stops on a yellow slice?
Write your answer as a fraction in simplest form.
Answer:
Step-by-step explanation:
3/6
ANSWER ASAP
-2X=34
SHOW WORK
Answer:
-2x =34
Step-by-step explanation:
-2x = 34
or , -x = 34 ÷2
or , -x = 17
x = -17
Answer:
x = -17
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Step-by-step explanation:
Step 1: Define Equation
-2x = 34
Step 2: Solve for x
Divide -2 on both sides: x = -17Step 3: Check
Plug in x into the original equation to verify it's a solution.
Substitute in x: -2(-17) = 34Multiply: 34 = 34Here we see that 34 does indeed equal 34.
∴ x = -17 is the solution of the equation.
5) Write the equation of the line to the right.
Answer:
y = -3x - 4
Step-by-step explanation:
to get -3x, you calculate the slope, so you can pick a point and use rise over run, and to get -4, it starts -4 down on the x line
Ok, the explanation is horrible, but i promise the answer is correct
Answer:
y=-1/3x-4
Step-by-step explanation:
One bag of rocks can cover 1.5 square yards of ground. Joan needs to cover a rectangular plot of ground that is 12 feet by 50 feet. How many bags of rocks does she need? (Round your answer up to the nearest whole number of bags.)
Answer: 45 bags
Step-by-step explanation:
1.5 square yards = 13.5 feet
area sq ft = 600
= 44.44
= 45 bags
Alan got 72 questions correct on the last math exam. He got 85 questions correct this time. By what percent did the number of questions correct increase? (Round to the nearest whole percent)
A. 84%
B. 16%
C. 118%
D. 18%
Answer:
D.
Step-by-step explanation:
the difference between 85 and 72 is 13. 13 is 18% of 72.
The ratio of athletes to non-athletes at Taylor Middle School is 3 to 4. If there are 225 athletes in the school, how many non-athletes are there?
Answer:
0 because no one wants to be a nerd
Answer:
300 non athletes
Step-by-step explanation:
Find the length of GH
Answer:
y=√(x1-x2)^2+(y1-y2)^2
y=√(-3-(-11))^2+(15-0)^2
y=√8^2+15^2
y=√64+225
y=√289
y=17
Step-by-step explanation:
Answer:
17
Step-by-step explanation:
x₁ = -3 and x₂ = -11
y₁ = 15 and y₂ = 0
√(-3 - -11)² + (15 - 0)²
√( 8² ) + ( 15² )
17
K
The selling price of a refrigerator, is $724.50. If the markup is 5% of the dealer's cost, what is the dealer's cost of the refrigerator?
If the markup is 5% of the dealer's cost then the dealer's cost of the refrigerator is $690.
Markup can be calculated using the formula.
Markup= (Selling price - Cost )/Cost
In the given question
The selling Price = $724.50
markup = 5% = 0.05
let the dealer's cost be "x".
Substituting the values in the dealer's formula we get
Markup= (Selling price - Cost )/Cost
0.05=(724.50-x)/x
0.05x=724.50-x
x+0.05x=724.50
Solving further we get
1.05x=724.50
x=724.50/1.05
x=690
Therefore , the dealer's cost of the refrigerator is $690.
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Simplify the expression: 7(9x + 6y)
Answer:
63x + 42y
Step-by-step explanation:
P.S Can I have brainliest?
Sam bought an $85.00 jacket for 40% off of the regular price. He also has to pay 5% for tax. How much did he pay for the jacket after the discount and tax?
PLEASE HELP ME AGAIN I AM IN A TIMED ASSIGNMENT PLEASE HELP
Answer:
RSP~ZXY
Step-by-step explanation:
Jonathan has a summer job earns $8.15 per hour .one week , he works 15 3/4 hours . He deposits $120 in a bank and decides to use the rest of the money to buy raffle tickets. Each raffle ticket costs $0.50 . How many raffle tickets can Garth buy ?
Need answers ASAP pliss
Answer:
16....................
Line n is parallel to Line P. Find the measure of each angle.
Please help
Answer:
m<1=140
m<2= 40
m<3= 140
m<4= 40
m<5=140
m<6= 40
m<7= 140
Answer:
Step-by-step explanation:
m∠1 = 180-40= 140° (suplementary angles)
m∠2= 40° (vertical angles are ≅)
m∠3= 140° ( is ≅ to ∠1)
m∠4 = m∠6 = 40° ( same side corresponding ∠s, and vertical angles)
m∠5 = m∠7 = 140° ( same side corresponding ∠s, and vertical angles)
sort the words into a category based on welther they indicate a positive number or a negative number.
- loss
- gain
- below
- adding
- taking away
- above
Answer:
Negative numbers: Loss, below, taken away
Positive numbers: Gain, Adding, Above
What the input calue for y=3x + 5
1.the input value is x
2.The input value is y
Which one ??
the input value is x because when you use the equation you need x to get y.
A local hospital recently conducted a blood drive where they collected a total of 56 pints of blood from donors. The hospital was hoping to collect a total of 8 gallons of blood from the drive.
Answer:
Step-by-step explanation:
Math question....................
[tex]alternative \: interior \: angles[/tex]
<4 and <6
[tex]alternative \: exterior \: angles[/tex]
<1 and <7
[tex]corresponding \: angles[/tex]
<1 and <5
- Trace has 453 trading cards,
He puts an equal
number of cards into
А
each of 3 books,
Part A
Write an equation to show the
cards Trace put in each book
Find the expected payback for a game in which you bet $5 on any number from 0 to 499. If your number comes up, you get $1000