Answer:
1 / 4 ( m + 2 ) - 7k
Step-by-step explanation:
Kendra was asked to find the number of students who planned to attend the evening symphony performance. She
was told that 40 percent of the 50 students planned to attend. Kendra's work is shown below.
part 40x2 80
whole 100x2 – 200
What mistake did Kendra make?
ОООО
Kendra should have multiplied by 4 instead of multiplying by 2.
O Kendra should have divided by 2 instead of multiplying by 2.
Kendra should have added 40 and 50.
Kendra should have subtracted 40 from 50.
Answer:
I actually think it’s c I’m sorry if I’m wrong
Step-by-step explanation:
Answer:its B guys not c because kendra should of divde both by 2 and not multiplie it by 2 trust me
Step-by-step explanation:
It is B not A,C,D!
Use the interactive to adjust the values, r and 0, and
choose the correct statements based on your
observations.
The point revolves around the pole when ris
changed.
The point revolves around the pole
counterclockwise when 0 is negative.
The point revolves around the pole
counterclockwise when 0 is positive.
The point gets closer to or farther from the pole
when r is changed.
The point gets closer to or farther from the pole
when is changed.
Answer:
Numbers 3 and 4
Step-by-step explanation:
- The point revolves around the pole counterclockwise when θ is positive.
-The point gets closer to or farther from the pole when r is changed
Jalen measured a bookcase to be 8.4 feet. The actual measurement is 5.6 feet. What is Jalen's percent error?
Answer:
hey man thats my name im about to answer my own question. i used my caculator and i got 150.0 if its not right sorry
Step-by-step explanation:
Answer:
50
Step-by-step explanation:
Kimberly's family has a dinner bill of $26 and wants to leave a 15% tip for their server. How much tip are they leaving?
A.3.90
B.$4
C.$29.90
D.$39
Answer:
uuummm i need this answer too actually
Step-by-step explanation:
Answer:
A.$3.90
Step-by-step explanation:
So we have $26 and the tip is 15%, so we just find 15% of $26A percentage is a number divided by 100, so 15% is the fraction [tex]\frac{15}{100}[/tex] Now what fraction of 26 is [tex]\frac{15}{100}[/tex] ? We multiply and seeSo [tex]\frac{15}{100}*26=\frac{15*26}{100}=\frac{390}{100}=3.90[/tex] so $3.90 is 15% 0f $26 Then $3.90 is the amount of the tipwhich is is equivalent to the given expression?
[tex] - 5y {}^{2} + 50y - 105[/tex]
pls give me the answer....
7½ – 4/7 ×7/8
= 15/2 – 1/2
= 7
Answer:
its 7
Step-by-step explanation:
Evaluate 4 + (m - n) ^4when m
7 and n = 5.
) The value of the expression is
Answer:
20
Step-by-step explanation:
An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
The value of the expression 4 + [tex](m - n)^4[/tex] at m = 7 and n = 5 is 20.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example:
2 + 3x + 4y = 7 is an expression.
3 + 4x = 5 is an expression.
We have,
An expression:
4 + [tex](m - n)^4[/tex]
We will solve the expression when m = 7 and n = 5.
Now,
4 + [tex](m - n)^4[/tex]
= 4 + [tex](7 - 5)^4[/tex]
= 4 + [tex]2^{4}[/tex]
[tex]2^{4}[/tex] = 2 x 2 x 2 x 2 = 16
= 4 + 16
= 20
Thus,
The value of the expression 4 + [tex](m - n)^4[/tex] at m = 7 and n = 5 is 20.
Learn more about expressions here:
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What is the value of x in the equation −6 + x = −3?
Answer:
x = 3
Step-by-step explanation:
Simply solve for x.
In this equation all we have to do is add 6 to both sides of the equation to solve for x.
x = 3
The answer is 3.
#teamtrees #WAP (Water And Plant)
Answer:
3
Step-by-step explanation:
Help plz due tomorrow
Answer:
D, (6,3)
Step-by-step explanation:
When you are reflecting something, you are reflecting the exact point, except any negative sign on the x-val, turns positive, so first, you end up with (4,3), shifting two units to the right, would cause it to go to (6,3).
What is the perimeter of the figure?
Answer:
21.2 yd
Step-by-step explanation:
8 + 6 + 7.2 = 14 + 7.2 = 21.2
21.2 yd
To find the perimeter of a rectangle or square you have to add the lengths of all the four sides. x is in this case the length of the rectangle while y is the width of the rectangle.
The sum of two numbers is 56. Their product is 108. Find the larger number?
Write in solution i will mark brainliest...
Lesson: Word problems involving quadratic and rational equations
Answer: the larger number is 54
Step-by-step explanation:
x + y = 56
xy = 108
x = 56 - y
substitute the x value in equation
(56 -y) y = 108
56y - y^2 = 108
y^2 - 56y + 108 = 0
=(y - 2)(y - 54)
The two numbers are 2 and 54.
What is multiplication?Multiplication is the process of adding a number up to a given number.
Given that, the sum of the two numbers is 56 and their product is 108.
Let the numbers are x and y then,
x + y = 56 (1)
xy = 108
x = 108/y
Substitute x = 108/y into equation (1):
108/y + y = 56
108 + y² = 56y
y² -56y + 108 = 0
y² -54y -2y + 108 =0
y(y - 54) -2(y - 54) = 0
(y - 2)(y - 54) = 0
y =2 or y = 54
Now, for y = 2 the value of x is 54 and for y = 54 the value of x is 2.
Hence, the two numbers are 2 and 54.
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Consider continuous functions f,g,h and I. Then complete the statements. Select the correct answer from each drop down menu. The function that has the least minimum value is function . The function that has the greatest minimum value is function .
Answer:
The least minimum value is continuous function
The greatest minimum value is quadratic function.
Step-by-step explanation:
The minimum and maximum value of function is different for the different equations. The minimum value is the point below the vertex. The maximum value of the quadratic function is the positive value and it has minimum value as negative.
Answer:
Least
Most
Step-by-step explanation:
Roberto must make his costume for the school play. He needs a piece of fabric that is 2 and 2/3 yards long and 1 and 1/2 yards wide. What is the area of the piece of fabric Roberto needs?
Answer:
4 yd².
Step-by-step explanation:
From the question given above, the following data were obtained:
Length (L) = 2⅔ yards
Width (W) = 1½ yards
Area (A) =.?
The area of the piece of fabric that Roberto needs can be obtained by using the formula for calculating the area of a rectangle. This is illustrated below:
Area (A) = Length (L) × Width (W)
A = 2⅔ × 1½
A = 8/3 × 3/2
A = 8 × ½
A = 4 yd²
Thus, the area of the piece of fabric that Roberto needs is 4 yd²
help please!!!!!!!!!
A. (1, -2)
B. (1, 2)
C. (2, -1)
D. Infinite number of solutions
Answer:
(1, -2) Option A in your list of possible answers
See attached image.
Step-by-step explanation:
We need to graph the lines by using a couple of points on the plane for each equation.
For example:
the points (0, -3) and (3, 0) for the line y = x - 3
and the points (0, 1) and (-1, 4) for the line y = - 3 x + 1
Please see the lines in the attached image, and notice that they intersect at the point (1, -2), which gives you the solution for the system.
Simplify 32 divided by 7 eigths
Answer:
256/7 = 36 4/7 =36.571
Step-by-step explanation:
Question 1 of 10
Multiple Choice
Identify if first number is divisible by the second number, and if so, the reason why.
Is 26 divisible by 2?
A.
No
B.
Yes, because 2 + 6 = 8 and 8 is divisible by 2.
C.
Yes, because the last digit is 6, which is divisible by 2.
can you please help me with this question .
Answer:
The answer is 4
Explanation:
5 divided by 20 is 4 right?
Errol bought a skateboard helmet on sale at 40% off. The original price was $49.95. What is the amount of discount?
Answer:
[tex]Discount = \$19.98[/tex]
Step-by-step explanation:
Given
[tex]Amount = \$49.95[/tex]
[tex]Price\ Off = 40\%[/tex]
Required
Determine the discount
The discount is calculated by multiplying the price off by the original price:
[tex]Discount = Amount * Price\ Off[/tex]
[tex]Discount = \$49.95 * 40\%[/tex]
Convert % to decimal
[tex]Discount = \$49.95 * 0.40[/tex]
[tex]Discount = \$19.98[/tex]
Hence, the amount of discount is $19.98
The graph of g is a vertical shrink by a factor of 1/3 and a reflection in the y-axis, followed by a translation 3 units right of the graph of f(x)=x2. Write a rule for g.
Answer: g(x) = (1/3)*(-x)^2 + 3.
Step-by-step explanation:
Let's define all the transformations in a general way,
A vertical contraction/dilation of a scale factor a is written as:
g(x) = a*f(x)
where if a > 1, it is a dilation.
if 0 < a < 1, it is a contraction.
A reflection in the y-axis changes the value of the x-component and leaves the y-component invariable, then this transformation is written as:
g(x) = f(-x).
A translation of A units up (A positive) is written as:
g(x) = f(x) + A.
Then for this case we have:
A dilation with scale factor 1/3.
g(x) = (1/3)*f(x)
A reflection over the y-axis.
g(x) = (1/3)*f(-x)
A translation of 3 units up.
g(x) = (1/3)*f(-x) + 3
(in that order, remember that the order in which you applly the transformations matters)
Then g(x) = (1/3)*f(-x) + 3
and f(x) = x^2, so we can replace that in the equation for g(x)
g(x) = (1/3)*(-x)^2 + 3.
Transformation involves changing the position of a function.
The rule for g is: [tex]\mathbf{g(x) = \frac 13(x - 3)^2}[/tex]
The parent function is given as:
[tex]\mathbf{f(x) = x^2}[/tex]
The rule of vertical shrink by a factor of 1/3 is:
[tex]\mathbf{(x,y) \to (x,\frac 13y)}[/tex]
So, we have:
[tex]\mathbf{f'(x) = \frac 13x^2}[/tex]
The rule of reflection across the y-axis is:
[tex]\mathbf{(x,y) \to (-x,y)}[/tex]
So, we have:
[tex]\mathbf{f''(x) = \frac 13(-x)^2}[/tex]
[tex]\mathbf{f''(x) = \frac 13x^2}[/tex]
The rule of translation 3 units right is:
[tex]\mathbf{(x,y) \to (x - 3,y)}[/tex]
So, we have:
[tex]\mathbf{g(x) = \frac 13(x - 3)^2}[/tex]
Hence, the rule for g is: [tex]\mathbf{g(x) = \frac 13(x - 3)^2}[/tex]
Read more about transformations at:
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A population of geese doubles every 18 months. If there are 5 geese initially, how many years will it take for there to be 111 geese?
Answer: 7 years
Step-by-step explanation:
Let t be the number of periods in which geese doubles .
The exponential growth function:[tex]y=Ab^t[/tex] , where A = initial value , b= growth factor.
As per given , A = 5 , b=2
i.e. Number of geese after t periods = [tex]y=5(2)^t[/tex]
Put y=111, we get
[tex]111=5(2)^t\\\\\Rightarrow\ \dfrac{111}{5}=2^t\\\\\Rightarrow\ 22.2=2^t[/tex]
Taking log on both sides , we get
[tex]\log 22.2 = t\log 2\\\\\Rightarrow\ 1.346353=t(0.30103)\\\\\Rightarrow\ t=\dfrac{1.346353}{0.30102}\\\\\Rightarrow\ t=4.47263636\approx4.47[/tex]
Now , total months = 4.47 x 18 =80.46≈ 80 months
since 1 year =12 months
Number of years it will take [tex]=\dfrac{80}{12}=\dfrac{20}{3}=6.66666666667\approx7[/tex]
Hence, it will take 7 years (approx.)
3x – 8y > 32
what the answer
Answer:
y < 3/8x-4
Step-by-step explanation:
what is the height of the cone if a metal sphere of radius 4m is melted to form a cone of base 5m?
9514 1404 393
Answer:
10.24 m
Step-by-step explanation:
The volume formulas for the figures are ...
V = 4/3πr³ . . . sphereV = 1/3πr²h . . . coneYou can fill in the given radii and set the volumes equal:
4/3π(4 m)³ = 1/3π(5 m)²h
h = (4^4)/(5^2) m . . . . . divide by the coefficient of h
h = 10.24 m
The height of the cone is 10.24 meters.
Jasmine bought 3 chocolates for Dhs.12.34 and her brother Alan bought 2 packets of biscuits for Dhs 3.5 each. How much they paid in total?
Answer:
$39.02
Step-by-step explanation:
$12.34 *3=37.02
$3.5*2=7
37.02+7=39.02
What does 6 1/2 mean in the situation
Answer:
2 ÷ 61
Step-by-step explanation:
The / means division so it's practically means you must divid
what is the perimeter of an angle with a sides of 10cm, 15cm, 40cm and 5cm
Answer:
10 + 15 + 40 + 5 = 70cm
Step-by-step explanation:
How long is 50% of a 24-hour day?
Answer: Its 12 hours
Step-by-step explanation:
50% is equal to 1/2 so half of a day is 12 hours :)
what positive whole number can you multiply by 3 and add1,or multiply by 2 and add 8?
Answer:
7 is the positive whole number which we can multiply by 3 and add 1, or multiply by 2 and add 8; and it will give the same answer.
Step-by-step explanation:
Multiplying the positive whole number 7 by 3 and adding 1 will get:
(7 × 3) + 1 = 21 + 1 = 22
Multiplying the positive whole number 7 by 2 and adding 8 will get:
(7 × 2) + 8 = 14 + 8 = 22
Therefore, 7 is the positive whole number which we can multiply by 3 and add 1, or multiply by 2 and add 8; and it will give the same answer.
Help I don't understand my kids work, we have been doing this for 30 mins now
Answer:
Step-by-step explanation:ygvt fvbygtfr5nBHY$nujmk,mjnhbygtf
Answer: divide thats all i know what to do bye
Step-by-step explanation:
divide
Tyra's family is spending the afternoon in Millersville. They plan to see a movie and then explore
the town. The movie will cost the family $36, and parking costs $4 per hour,
How long will the family be able to spend in Millersville if they want to spend less than $60 and
they don't have any other expenses?
Follow the steps to answer this question
I
1. Write an inequality that shows that Tyra's family spends less than their limit.
2. Solve your inequality Show your work
Answer:
They have to spend less that 6 hours in the town.
(60-36) = m
m divided by 4= 6
Step-by-step explanation:
Answer:
They have to spend less that 6 hours in the town.
(60-36) = m
m divided by 4= 6
Step-by-step explanation:
HOPE IT HELPSSS! :D
Courtney makes 80 % 80%80, percent of the free throws she attempts. She often stays after practice to shoot sets of 10 1010 free throws. Assume that the results of free throws are independent from each other. What are the mean and standard deviation of the number of free throws she makes in each set of 10 1010?
Answer:
Mean: 8 free throws
Standard Deviation: 1.3 free throws
Step-by-step explanation:
This is a binomial random variable, so we can use the formula [tex]ux = np[/tex], where n is the number of trials, and p is the probability. Since we know both of these values, just plug it in for the mean. [tex]ux = .8*10 = 8[/tex]
For the standard deviation, we use the formula σ = [tex]\sqrt{np(1-p)}[/tex]. Since we know what np is, we can replace those 2, giving us [tex]\sqrt{8(1-p)}[/tex]. Again, p is our probability, so this gives us our final equation of [tex]\sqrt{8(1-.8)}[/tex], which simplifies to [tex]\sqrt{8(.2)}[/tex]. Using a calculator, we get 1.264, which is 1.3 rounded to the nearest tenth.
Hope this helped :)
Answer: Mean: 8
Standard Deviation: 1.3
Step-by-step explanation: