Answers
Answer:
it is a neg slope
Step-by-step explanation:
Related Questions
Which expression is equivalent to 3 + 4y – y(9 – 2y) + 5?
A. 8 – 7y
B. 2y^2 - 5y + 8
C. -2y^2 - 5y + 8
D. -6y^2 + 27y + 8
Answers
Answer:
C.
Step-by-step explanation:
Because the expression simplified is 2y^3-5y+8, so the answer is C.
Hope this helps! :)
~Angel
Answer:
The expression 3 + 4y – y(9 – 2y) + 5 is equivalent to 2y² -5y + 8 .
Option (B) is correct .
Step-by-step explanation:
As the expression given in the question be
= 3 + 4y – y(9 – 2y) + 5
First open the bracket
= 3 + 4y – 9y +2y² + 5
= 2y² -5y + 8
Therefore the expression 3 + 4y – y(9 – 2y) + 5 is equivalent to 2y² -5y + 8 .
Option (B) is correct .
PLEASE HELP ME I DONT UNDERSTAND.
Answers
width = 7cm
Length= 41cm
width=x
length=3x+20
96=3x+20+3x+20+x+x
96=8x+40
56=8x
x=8
Rectangle has 4 sides
You have the 2 side lengths (l) and the 2 side widths (w)
"The length is 20 centimeters more than triple the width" in math terms is
l = 20 + 3w
The perimeter is 96 centimeters, which is all the sides added up
2l + 2w = 96
2(20 + 3w) + 2w = 96
40 + 6w + 2w = 96
40 + 8w = 96
8w = 56
w = 7
now plug in w = 7 to get length in
l = 20 + 3w
What is the rule for the nth term, an, when the first 4 terms of the sequence are 4, 16, 64, 256?
A.
an=(‒4)^n ‒ 1
B.
an=4n
C.
an=4^n ‒ 1
D.
an=4^n
Answers
4, 16, 64, 256
4¹, 4², 4³, 4⁴
Do you see the pattern? [tex]a_{n} = 4^{n}[/tex]
Answer: D
The length of a rectangle is 2 more than 5 times its width. Find the perimeter of the garden if the perimeter is 160m.
Answers
Take the breadth as x,as its the smallest value--(1)
Length is 2 more than 5 times the breadth--(2)
perimeter=160m
l=2+5x
b=x
Perimeter=2(l+b)
2(2+5x+x)
=2(2+6x)
Opening the brackets
=4+12x
4+12x=160
12x=160-4
x=156/12
=13
Therefore , by substituting the value of x
l=2+5*13=67m
b=13m
Which statement best describes the domain of the function represented in the graph?
0 ≤ x ≤ 9 or x is between 0 and 9, inclusive
2 ≤ x ≤ 14 or x is between 2 and 14, inclusive
1 ≤ x ≤ 9 or x is between 1 and 9, inclusive
1 ≤ x ≤ 14 or x is between 1 and 14, inclusive
If you can as well, write an explanation for me thank you!
Answers
domain represents the x-values. the x-values start at 1 and end at 9. 1 is included and 9 is included (otherwise an open dot would be shown).
1 ≤ x ≤ 9
because as you can see on the graph the line starts at X cordinate 1 and ends at 9. so we can say 1<x<9. then we are going to have to add an equall sign because the line includes 1 and 9. so it will be like this---1 ≤ x ≤ 9.
Julianne opens a dance studio. Her start up costs for the building, advertising, and supplies total $52,000. Each day, she spends $680 on operating costs (like utilities and wages). she earns $960 per day from her students' lesson fees.
Part A: Write an equation or inequality to represent this situation. let d be the number of days.
Part B: When will Julianne begin making profit? Show all the work you did to arrive at your answer.
Answers
For this case we have:
Initial costs = $ 52,000 Operating costs = $ 680 per day Earnings = $ 960 per dayPart A:
Since d is the variable that represents the number of days, we can represent an inequality for the gains given by:
[tex]680d + 52000 <960d\\[/tex]
Part B:
We want to know the moment from which Julianne obtains earnings, for that we clear d of the previous inequality:
[tex]52000 <960d-680d\\\\52000 <280d\\\\\frac{52000}{280}<d\\[/tex]
[tex]185.7 <d\\\\d> 186 days\\[/tex]
To start making a profit, Julianne must work more than 186 days.
Answer:
[tex]680d + 52000 <960d\\\\d> 186 days\\\\[/tex]
What is 351,875 round to thew nearest hundred thousand
Answers
The answer to what is 351,875 rounded to the nearest hundred thousand is 400,000. I am positive.
The cafe where you work just ran out of coffee, and you are at the store to buy 112 pounds of coffee. You have put a can with 34 pound of coffee into your shopping cart. How many more pounds of coffee do you need?
Answers
The student needs 78 more pounds of coffee to reach the total of 112 pounds required.
The student's question:
The total amount of coffee needed is 112 pounds. You have already put 34 pounds into your cart. To find out how many more pounds you need, you subtract the amount you have from the total needed.
which of the following options correctly describes the graph below?
Answers
It is a step graph with slope of 2.
Answer: C
Whenever you are unsure, choose a coordinate, plug it into the equation, and see if it makes a true statement.
I choose (1/2, 1) → 1 = [2(1/2)] → 1 = [1] TRUE
I choose (1, 2) → 2 = [2(1)] → 2 = [2] TRUE
A reasonable estimate for 697 times 82 is
Answers
A reasonable estimate for 697 times 82 would be 56,000
What is rounding a number to some specific place?Rounding some number to a specific value is making its value simpler (therefore losing accuracy), mostly done for better readability or accessibility. Rounding to some place keeps it accurate on the left side of that place but rounded or sort of like trimmed from the right in terms of exact digits.
We could round both numbers to make estimation easier to find.
So let's consider that 82 is 80 and 697 is 700.
As we know that 8 x 7 is 56, then the product of them will be;
80 x 700 = 56,000.
Therefore, This is a great way to estimate of big numbers easily.
Hence, A reasonable estimate for 697 times 82 would be 56,000
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How many more year can a 75 year old person expect to live
Answers
Answer:
A 75-year-old person can expect to live 11.7 more years.
Step-by-step explanation:
edmentum/plato
PLEASE HELP! I HAVE LIMITED TIME, WILL MARK BRAINLIEST!
Answers
The answer is D. U and T
Why hello there
The correct answer to you question will be D. U and T
Important: If my answer did help please mark me as brainliest thank you and have a great day!
Match the reasons with the statements. GIVEN: x2 + 6x + 2x + 12 = 0 TO PROVE: x = -6 or x = -2 1. x2 + 6x + 2x + 12 = 0 Subtraction property of equality 2. x2 + 8x + 12 = 0 Distributive Postulate 3. (x + 6)(x + 2) = 0 Combining like terms 4. x + 6 = 0 or x + 2 = 0 Zero product postulate 5. x = -6 or x = -2
Answers
Given: [tex]x^2 + 6x + 2x + 12 = 0.[/tex]
1. Combining like terms (here terms 6x and 2x both contain x, then we can combine them):
[tex]x^2+(6x+2x)+12=0,\\\\x^2+8x+12=0.[/tex]
2. Distributive postulate:
[tex]x^2+8x+12=(x+6)(x+2).[/tex]
The equation is
[tex](x+6)(x+2)=0.[/tex]
3. Zero product postulate (zero product postulate state that if a product of two factors is equal to zero, then first factor is equal to zero or second factor is equal to zero):
[tex]x+6=0 \text{ or } x+2=0.[/tex]
4. Subtraction property of equality:
a) subtract 6 from the first equation:
[tex]x+6=0\Rightarrow x+6-6=-6, \ x=-6.[/tex]
b) subtract 2 from the second equation:
[tex]x+2=0\Rightarrow x+2-2=-2, \ x=-2.[/tex]
Answer:
1. x2 + 6x + 2x + 12 = 0 1. Given
2. x2 + 8x + 12 = 0 2. Combining like terms
3. (x + 6)(x + 2) = 0 3. Distributive Postulate
4. x + 6 = 0 or x + 2 = 0 4. Zero product postulate
5. x = -6 or x = -2 5 Subtraction property of equality
If 2 pounds of strawberry cost 4$50 how much would 3 pound cost
Answers
Evaluate 12x−3y 12x−3y when x=− 1 4 x=−14 and y=3 y=3 .
Answers
The value of the given expression would be = - 177.
How to calculate the given expression?
To evaluate the given expression, the following steps should be taken as follows:
Given:
12x-3y
where
X = -14
y = 3
= 12(-14)-3(3)
= -168-9
= -177
What is the radius of a sphere with a surface area of 144πcm2?
Answers
I believe the radius would be 3.39
Hope this helps! Good luck! :)
144(π)cm² = 4(π)r² Divide by π on both sides
144cm² = 4r² Divide by 4 on both sides
36 = r² Find the square root of both sides
√36 = √r²
6 = rComplete the chart to find the mean, variance, and standard deviation. Remember to use commas and round numbers to the nearest tenth. Need help
Answers
Answer: The mean of the data is 433.75, variance of the data is 99667.19 and the standard deviation of the data is 315.7011.
Explanation:
The given data is 900, 35, 500 and 300.
The number of observation is 4.
Formula of mean is,
[tex]\text{Mean}=\frac{\text{Sum of observations}}{\text{Number of observations}}[/tex]
[tex]\bar{X}=\frac{900+35+50+300}{4} =433.75[/tex]
The formula of variance is given below,
[tex]\sigma^2=\frac{1}{n}\sum{(X-\bar{X})^2}[/tex]
[tex]\sigma^2=\frac{398668.75}{4}[/tex]
[tex]\sigma^2=99667.19[/tex]
The variance of the data is 99667.19
[tex]\sigma=\sqrt{99667.19}[/tex]
[tex]\sigma=315.7011[/tex]
The standard deviation of the data is 315.7011.
The other information or values of given chart is shown in the attached table.
Answer:
i. mean of the data is 402.5
ii. variance of the data is 77556.25
iii. standard deviation of the data is 278.49
Step-by-step explanation: (x - ⁻x)²
from the chart given to me, the observation are: 45, 340, 400, 825
i. mean is the summation of the observation divided by number of observation. ∈x÷n =( 45 + 340 + 400 + 825)÷ 4 = 402.5
ii. variance is the square of the difference between the observation and mean divided by the number of observation.
variance = (45-402.5)²+(340-402.5)²+(400-402.5)²+(825-402.5)²÷4=77556.5
Determine the numbers of zeros of the polynomial function
g(x) = x^4-x^5
___ zero(s)
Answers
Factor out x^4 for find zeros:
g(x) = x^4 (1-x)
From this, we can see that if x = 0 or 1, it would cause g to result in 0.
So the zeros are 0 and 1.
The polynomial function g(x) = [tex]x^4 - x^5[/tex] has two zeroes, which are x = 0 and x = 1. This result is obtained by setting the polynomial equal to zero and solving for x.
Explanation:The given polynomial function is g(x) = [tex]x^4 - x^5[/tex]. To find the zeroes of the polynomial, this function should equal zero. Thus, we have[tex]x^4 - x^5[/tex] = 0.
We can simplify this function by factoring out the common factor, which is [tex]x^4[/tex]. The function thus becomes [tex]x^4[/tex](1 - x) = 0.
A product equals zero when one (or more) of the factors is zero. So, we need to set each factor to zero and solve for x. Setting [tex]x^4[/tex]= 0, yields x = 0. Setting (1 - x) = 0 results in x = 1.
This process gives two values of x that satisfy the equation [tex]x^4[/tex](1 - x) = 0 and therefore, the polynomial function g(x) has two zeroes, specifically x = 0 and x = 1.
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Plz help!!!you are purchasing four items and want to calculate the tax. The itemscost $2.50, $8.75, $3.00, and $10.25. The tax rate is 6%. How much is the tax? you exercised 24 hours each month for a year. How many hours did youexercise by the end of the year? You may be able to do the math mentally thanksto expanded notation and the distributive property. find the value of this integer expression: -2( 3+ -4 +-8+ 7)find the value of this fraction computation: 6( 1/2 + 2/3 + 3/4)find the perimeter of a rectangular area with a length of 13 inches anda width of 7 inches. give an original example of a situation in which the distributive property could beused.( calculate with and without the distributive property for all and i will put good things on your profile and mark you the brainlyest answer.)
Answers
1. The cost of items are= $2.50, $8.75, $3.00, $10.25
Total cost = $ 24.50
Tax rate = 6%
Hence tax amount is = [tex]\frac{6}{100} *24.50[/tex] = $ 1.47
2. Time involved in exercise in 1 month = 24 hours
Hence, total time involved in exercising for a year = [tex]24*12=288[/tex] hours
3. find the value of this integer expression: -2( 3+ -4 +-8+ 7)
Value is obtained by [tex]-2(3+(-4-8)+7)[/tex]
= [tex]-2(3-12+7)=-2(-2)=4[/tex]
4. find the value of this fraction computation: 6( 1/2 + 2/3 + 3/4)
[tex]6(\frac{1}{2}+\frac{2}{3}+\frac{3}{4})[/tex]
=[tex]6(\frac{6+8+9}{12})[/tex]
=[tex]6(\frac{23}{12}) = \frac{23}{2}[/tex]
5. find the perimeter of a rectangular area with a length of 13 inches and width of 7 inches.
Perimeter of a rectangle = 2(length + width)
perimeter = [tex]2(13+7)[/tex]
=[tex]2(20)=40[/tex] inches
6. a situation in which the distributive property could be used is the perimeter of a rectangle.
2(length + width) = 2length + 2width
example- suppose the length of the rectangle is 10 cm and width is 4 cm
so, perimeter is 2(10+4)
= 2(10) + 2(4) = 20+8 =28cm ..... with distributive property
or
2(10+4) = 2(14) =28cm ........ without distributive property
Find the equation of the line in slope-intercept form.Slope is 2/3 through (3, 4)
Answers
Answer:
y = (2/3)x + 2
Step-by-step explanation:
Start with the general slope-intercept form y = mx + b. Substitute 3 for x and 4 for y and 2/3 for m, and find the intercept, b:
4 = (2/3)(3) + b, or 2 = b. Then the desired equation is y = (2/3)x + 2.
Your name is included in a list of 6 names. One name is selected at random. Write the probability, as a decimal, that it is your name.
Answers
Answer:
The probability of my name being chosen is 1/6. As a decimal, that's 0.16666...
Step-by-step explanation:
As a decimal, that's 0.16666...
If u is <1,5> find ||u||
A.4
B.6
C. Square root 6
D. Square root 26
Answers
u = <1,5> is a vector in the form <a,b> with a = 1 and b = 5.
||u|| = sqrt(a^2+b^2) is the magnitude or length of the vector
||u|| = sqrt(1^2+5^2)
||u| = sqrt(26)
The answer is choice D
Check out the attached image below for a visual.
Ron made 2/3 of a quart of hot chocolate. Each mug holds 1/3 of a quart. How many mugs will ron be able to fill ?
Answers
pretty sure its 2 mugs
Answer:
2 mugs.
Step-by-step explanation:
We have been given that Ron made [tex]\frac{2}{3}[/tex] of a quart of hot chocolate. Each mug holds [tex]\frac{1}{3}[/tex] of a quart.
To find the number of mugs that can be filled by [tex]\frac{2}{3}[/tex] quart of hot chocolate, we will divide [tex]\frac{2}{3}[/tex] by [tex]\frac{1}{3}[/tex] as:
[tex]\frac{2}{3}\div\frac{1}{3}[/tex]
Now, we will convert the division problem to multiplication problem by flipping the 2nd fraction as:
[tex]\frac{2}{3}\times\frac{3}{1}[/tex]
[tex]\frac{2\times 3}{3\times 1}[/tex]
[tex]\frac{2\times1}{1\times 1}[/tex]
[tex]2[/tex]
Therefore, Ron will be able to fill 2 mugs.
What is the product of the ten one-digit numbers
Answers
10×1 = 10
10×2 = 20
10×3 = 30
10×4 = 40
This goes all the way up to 9.
The product of all ten one digits numbers will be 0.
What is Multiplication?
To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Given that;
All the ten one digit numbers are;
⇒ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
Now,
The product of all the ten one digit numbers is,
⇒ 0 × 1 × 2 × 3 × 4 × 5 × 6 × 7 × 8 × 9
⇒ 0
Thus, The product of all ten one digits numbers will be 0.
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find the equation of the line that contains the given point and the given slope. Write the equation in slope-intercept form.
1. (4, 1) slope = 6
2. (6,-3) slope= -5
3. (-8, 2) slope = -1/2
4. (-7,-1) slope = 0
Answers
Answer:
1. [tex]y=6x-23[/tex]
2. [tex]y=-5x+27[/tex]
3. [tex]y=-\frac{1}{2}x-2[/tex]
4. [tex]y=-1[/tex]
Step-by-step explanation:
- The equation of the line is:
[tex]y=mx+b[/tex]
Where [tex]m[/tex] is the slope and [tex]b[/tex] is the y-intercept.
- You have to find the y-intercept [tex]b[/tex], so, you must substitute the given point and the slope into each equation and solve for [tex]b[/tex], and then you must rewrite the equation of the line with the slope and the y-intercept calculated:
1. [tex]1=6(4)+b\\ b=-23\\ y=6x-23[/tex]
2. [tex]-3=-5(6)+b\\ b=27\\ y=-5x+27[/tex]
3. [tex]2=-\frac{1}{2}(-8)+b\\b=-2\\ y=-\frac{1}{2}x-2[/tex]
4. [tex]-1=0(-7)+b\\ b=-1\\ y=0x-1\\ y=-1[/tex]
The county fair charges $2.50 per ticket for the rides. Henry bought 15 tickets for the rides and spent a total of $55.50 at the fair. Henry spent his money only on ride tickets and far admission. The price of the fair admission is the same for everyone. Use x to represent the number of tide tickets and y to represent the total cost.
(A) Find the cost of admission to the fair. Explain how you found the cost of admission.
(B) Write a linear equation that can be used to determine the cost for anyone who pays for ride tickets and fair admission.
(C) Explain what the coefficient on x and the constant of your linear equation represent.
Answers
To find the cost of admission to the fair, subtract the cost of the ride tickets from the total spent. The linear equation 2.50x + y = 55.50 can be used to calculate the cost for anyone. The coefficient on x represents the cost per ride ticket, while the constant represents the total amount spent on ride tickets and admission.
Explanation:(A) To find the cost of admission to the fair, we need to subtract the cost of the ride tickets from the total spent. Since Henry bought 15 tickets and spent a total of $55.50, we can use the equation 2.50x + y = 55.50, where x represents the number of ride tickets. Substituting x = 15, we can solve for y to find the cost of admission.
(B) The linear equation that can be used to determine the cost for anyone who pays for ride tickets and fair admission is 2.50x + y = 55.50, where x represents the number of ride tickets and y represents the cost of admission.
(C) In the linear equation, the coefficient on x (2.50) represents the cost per ride ticket. The constant (55.50) represents the total amount spent on ride tickets and admission.
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-5.3 ≥ 6.7 + 4.3 + q
Please help and show work!!
Answers
Simplify both sides of the inequality.
−5.3≥q+11
Flip the equation.
q+11≤−5.3
Subtract 11 from both sides.
q+11−11≤−5.3−11
ANSWER: q≤−16.3
Graph the following lines and write the equation in slope-intercept form. Through the point (2,−4) with y-intercept of −2.
HELP!!!!!!!!
Answers
For this case we have that by definition, the equation in the form of slope-intersection is given by:
[tex]y = mx + b[/tex]
Where
m is the slope b is the cut pointSubstituting the given point: [tex](x, y) = (2, -4)[/tex] and the cutoff point [tex]b = -2[/tex] we can find the slope,
We have:
[tex]-4 = m * 2-2\\-4 = 2m-2\\-4 + 2 = 2m\\-2 = 2m[/tex]
[tex]m =-\frac{2}{2}\\m = -1[/tex]
Thus, the equation is given by:
[tex]y = -x-2[/tex]
Answer:
[tex]y = -x-2[/tex]
See attached image
For a student fundraiser Ronna needs to sell 56 boxes of cookies so far she has sold 13 boxes of lemon cookies to her aunt 14 boxes of chocolate cookies to her mother and three boxes of oatmeal cookies to her neighbor how many more boxes of cookies does Ronna need to sell
Answers
Question 7
Solve the following system of equations by using the elimination method.
-4x – 2y = -12
4x + 8y = -24
(5, 3)
(-6, -6)
(3, 1)
(6, -6)
Answers
To solve this problem you must apply the proccedure shown below:
1. You have the following system of equation:
[tex]\left \{ {{-4x-2y=-12} \atop {4x+8y=-24}} \right.[/tex]
2. As you can see, you can cancel out the variable [tex]x[/tex], because it has equal coefficient with different signs at both equations. Then, if you add both equations, you obtain:
[tex]6y=-36\\y=-6[/tex]
3. Let's substitute the value obtained into the second equation to calculate the other variable:
[tex]4x+8(-6)=-24\\4x-48=-24\\x=6[/tex]
The answer is: (6,-6).