Answer:
No Solutions
Step-by-step explanation:
Step 1:
25 - 2z - 10z = - 3 ( 4z + 8 ) - 1 Equation/Given
Step 2:
25 - 12z = - 12z - 25 Combine Like Terms/Multiply
Step 3:
25 = - 25 Add 12z on both sides
Answer:
No Solutions
Hope This Helps :)
What information can be used to compare linear relationships? Explain why.What information can be used to compare linear relationships? Explain why.
How can I compare linear relationships?
We have measured simple relationships between the size of different species and their weight (biomass). They are linear regressions (sometimes semilog). The type of question I would like to answer is, for example, if I have 4 species of snail, each with a separate linear equation representing the relationship between size and biomass, are those relationships significantly different, or does one relationship suffice for all my snail species?
I'm not sure how to do this comparison. Each species often has different sample sizes. I thought about just doing the separate relationships, then pooling all samples and comparing the resulting slope to the species-wise relationships with t tests. However I'm worried that species with more samples will bias the results. I could randomly remove samples from those species to equalize them. Another alternative might be to do an ancova with species put in as a dummy variable and look for interactions with species as a test of parallelism. Does that seem reasonable? It seems like a good idea to me because it will also be a test of whether the intercepts are the same.
The approach using a dummy variable and looking for interaction terms will work. It only works for comparing models of the same type (transformed or not). The pooling idea is the start of trying randomization tests (or computer intensive methods in general), but it will not work well if used in the way that you suggest.
The randomization test starts by treating the data as if the null hypothesis was true. One then calculates the probability of withdrawing two samples from your data that have a difference that is equal to or greater than the observed difference. So you resample the data, calculate differences, order these differences, and see how many are equal to or larger than the observed difference. Divide that by the total number of randomizations, and you have your answer.
Answer: Linear relationships can be compared using their initial values, or y-intercepts, and their rates of change, or slopes. Initial values can tell you which relationship started with a greater value. Comparing slopes can tell you which relationship is rising or falling faster.
Step-by-step explanation:
The Kettings have several bird feeders in their yard. They started with a 10.5 pound of bird seed. After two months, 12 ounces remained. What is the percent of change in the amount of bird seed after two months?
Answer:
Step-by-step explanation: i think its 21.3
The required percentage of the remaining birdseed after two months is 7.14%
Given that, the Kettings have several bird feeders in their yards. They started with a 10.5-pound of birdseed. After two months, 12 ounces remained, what is the percent of change in the amount of bird seed after two months is to be determined
What is the percentage?The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.
Here,
In, 1 pound = 16 ounces
Multiply both sides by 10.5,
10.5 pound = 16 * 10.5 ounces
10.5 pound = 168 ounces
Now after 2 months 12 ounces remained
Percentage of the remaining = 12 / 168 * 100
= 7.14%
Thus, the required percentage of the remaining birdseed after two months is 7.14%.
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Jesse wants to purchase three binders and a backpack. If the backpack costs $16, which equation represents the situation in which x denotes the cost per binder and y denotes the total cost of Jesse’s purchase?
The equation represents the situation in which x denotes the cost per binder and y denotes the total cost of Jesse’s purchase is 16+3x=y.
What is a linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
It is given that:
Jesse wants to purchase three binders and a backpack. If the backpack costs $16
From the data given in the question:
The linear equation can be framed as follows:
y = 16 + 3x
Or
16 + 3x = y
Thus, the equation represents the situation in which x denotes the cost per binder and y denotes the total cost of Jesse’s purchase is 16+3x=y.
The options are:
16+y=3x
16+3x=y
y+3x=16
3+16x=y
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An observation deck extends 199 feet out above a valley. The deck sits 149 feet above the valley floor. If an object is dropped from the observation deck, its height h in feet, after t seconds, is given by h= -16t^2+149. How long will it take for the object to be 5 feet above the valley floor?
Answer:
Step-by-step explanation:
Give the height of the observation deck modeled by the equation
h= -16t^2+149 where t is in seconds;
To get the time it will take the object to be 5 feet above the valley floor, we wil substitute h = 5ft into the modeled equation and calculate t;
h= -16t^2+149
5= -16t^2+149
-16t^2 = 5-149
-16t^2 = -144
t² = 144/16
t² = 9
t = √9
t = 3secs
Hence the time it will take for the object to be 5 feet above the valley floor is 3secs
Please help!!
(a - b)(a^2 + ab + b^2)
It should be solved using FOIL
Use the distributive property (of which the FOIL method is a special case):
(a - b) (a² + ab + b²)
= (a - b) a² + (a - b) ab + (a - b) b²
= (a³ - a²b) + (a²b - ab²) + (ab² - b³)
= a³ - b³
Alternatively, you can distribute the quadratic expression over each term in a - b :
(a - b) (a² + ab + b²)
= a (a² + ab + b²) - b (a² + ab + b²)
= (a³ + a²b + ab²) - (a²b + ab² + b³)
= a³ - b³
Round 21.994 to the nearest whole number.
Answer:
22
Step-by-step explanation:
21.994
5+ round up
Which are composite numbers?
Select all that are true.
49
35
32
41
47
Answer:
49, 35, and 32 are composite.
Step-by-step explanation:
Answer:
49, 35, and 32
Step-by-step explanation:
Evaluate the left hand side to find the value of a in the equation in simplest form.
[tex]\frac{x^{^\frac{4}{3} } }{x^{^\frac{2}{3} } } = x^{a}[/tex]
Answer:
[tex]x^{2}[/tex]
Step-by-step explanation:
LHS (left hand side)
[tex]x^{4/3}[/tex] / [tex]x^{2/3}[/tex]
[tex]x^{4/3}[/tex] x [tex]x^{2/3}[/tex]
[tex]x^{4/3 + 2/3}[/tex]
[tex]x^{4+2/3}[/tex]
[tex]x^{6/3}[/tex]
[tex]x^{2}[/tex]
Plant A
Use the data for each plant's growth to determine and
compare the rates of change
How fast does Plant Agrow each week?
Height in.)
TO
How tast does Plant grow each week?
Time (weeks)
Which plant grows faster each week?
Plant B
Weeks
2
3
Height (in)
7.3
8.7
4
10.1
Answer:
1.8, 1.4, plant A,0.4in.
Step-by-step explanation:
it was right on edge
Answer:
1.8, 1.4, plant A, 0.4 in.
Step-by-step explanation:
It was right on edge.
What is -2•3x simplified?
Answer:
Multiply
3 by − 2 =− 6 x
Step-by-step explanation:
Answer:-6x I hope this is helpful
Step-by-step explanation:
-2•3x
Multiplying a negative and a positive equals a negative: (-) • (+)=(-)
-(2•3)x
Multiply the numbers
-6x
List in increasing order
182.205 182.05 182.105 182.025
I think is 182.205,182.105,182.0.25,182.05
A function f(x) is graphed on the coordinate plane.
What is the function rule in slope-intercept form?
Enter your answer in the box.
Answer:
y = -4x - 2
Step-by-step explanation:
y-intercept: -2
Slope: -4
Write and solve an equation for the situation.
The perimeter of a parallelogram is 44 meters meters. The width of the parallelogram is 6 m less than its length. Find the length and the width of the parallelogram
The length of the parallelogram is____
The width of the parallelogram is____
Answer:
18.6667 = w
9.3333 = l
ITS WRONG
IT'S WRONG
WRONG ANSWER
Step-by-step explanation:
w-6 = l
w=w
Act like it is a rectangle, two lengths, and two sides.
w-6 + w-6 + w + w = 44
w-12 + 2w = 44
3w - 12 = 44
add 12 to both sides
3w=56
divide both sides by 3
18.6667 = w
______________ is a metric unit used to measure length.
A. Meter
B. Pounds
C. Gram
D. Liter
I'll give 45 points!!
Answer: A
Step-by-step explanation:
Meter
Answer:
A) Meter
Step-by-step explanation:
Pounds is not a metric unit, pounds is used in the english system or the customary system
Grams is used to measure mass
Liters are used to measure volume
There are kilometers (km) meters (m) and centimeters (cm) as well as other units of measurements for length in the metric system, which is used in most parts of the world.
Hope this helps :-)
Mr. Barker has 18 boys and 27
girls in choir. He wants each
student standing in a row that
is either all boys or all girls.
What is the greatest number of
students that can stand in each
row? How many rows of boys
are there? How many rows of
girls are there?
Answer:
The greatest number of students that can stand in one row is 9. There are 2 rows of boys, and 3 rows of girls.
Step-by-step explanation:
I added translation
Answer:
E.f(x)=log(x-1)
Step-by-step explanation:
f(x)=log(2-1)
=log1 (log1=0)
=0
On Average, Mercury is about 57,000,000 Km from the sun, whereas Neptune is about 4.5 x 10^9 km from the sun. What is the difference between Mercury’s and Neptune’s distances from the sun?
Answer:
4.443 x10^9
Step-by-step explanation:
Please help. Brainliest mark
[tex]2(4)( \frac{1}{16} ) = [/tex]
I need help plz
Answer:
0.5
Step-by-step explanation:
[tex]2*4*\frac 1 {16}\\8 / 16\\0.5[/tex]
Hope this helped :)
Help i will mark brainliest to who first
Answer:
Chapter 2 The Language of Algebra
Simplify:
1.5(3+2·6)−82
Solve:
2.17=y−13
3.p+14=23
Translate into an algebraic expression.
4.11 less than the product of 7 and x.
Translate into an algebraic equation and solve.
5.Twice the difference of y and 7 gives 84.
6.Find all the factors of 72.
7.Find the prime factorization of 132.
8.Find the least common multiple of 12 and 20.
Chapter 3 Integers
Simplify:
9.|8−9|−|3−8|
10.−2+4(−3+7)
11.27−(−4−7)
12.28÷(−4)−7
Translate into an algebraic expression or equation.
13.The sum of −5 and 13, increased by 11.
14.The product of −11and8.
15.The quotient of 7 and the sum of −4andm.
16.The product of −3 and is −51.
Solve:
17.−6r=24
Chapter 4 Fractions
18.Locate the numbers on a number line.
7
8
,
5
3
,3
1
4
,5.
Step-by-step explanation:
NEED ANSWER ASAP FOR QUIZ
Solve the equation x2 = 5. Round to the nearest tenth.
Answer:
1.41421356
Step-by-step explanation:
I think
Answer:
Well first what times itself equals 5 if you have a calculator Find the square root symbol and put 5 inside it
Use f(x) = 1
2
x and f -1(x) = 2x to solve the problems.
f(2) =
f−1(1) =
f−1(f(2)) =
Answer: f-1x(fx2) answer = -f
f(2)= 2 answer 2f
f-1x1 answer f-1
I need the definition of angle
Answer: D
Step-by-step explanation:
Two rays that have a common endpoint
Round 12.478 to the nearest tenth.
Answer:
12.5
Step-by-step explanation:
Answer:
12.5
Step-by-step explanation:
If the number after the place you are trying to round is less than five it doesn't change. If it is five or higher, the number goes up by one.
How would you convince a fellow student that the number 0.57 is a rational number?
[HELP NEEDED]
Answer:
because a fraction are not rational it is like fraction and whole numbers are one number hope this helps
Consider the function represented by the equation y-6x-9 = 0. Which answer shows the equation written in function
notation with x as the independent variable?
O F(x) = 5x + 9
O f(x) = 1/3 x + 2 / 2
Of) = 5y+9
O fox = 1/3 + 2 / 2
Answer:
f(x) = 5x+9
Step-by-step explanation:
This meets the criteria:
function notation - all this means is replace the'y' with 'f(x)
x as the independent variable - basically means don't change the letter for x
Can someone please help me with these questions?
Answer:
"of" means multiply in math terms!
= 8/13 IS THE ANSWER
Hope this helps!!!! :)
Step-by-step explanation:
Use mental math to find the product
0.4• 3.29•25
Answer:
32.9
Step-by-step explanation:
"At an ice cream shop, customers pay $3.00 for a medium ice cream plus $0.75 per topping. At a second ice cream shop, customers pay $5.25 for a medium ice cream plus $0.25 per topping. How many toppings would a customer have to order for the ice cream to cost the same at either shop?"
Answer:hope this helps
0.75x + 3 = 0.25x + 5.25
Constants are $3 and $5.25 respectively
Topping costs $0.75 and $0.25 respectively
To have same cost the toppings number would be different as cost is different.
Suppose the number of toppings is x in one shop and y in the other, then the spending if same, we get this equation:
0.75x + 3 = 0.25y + 5.25
Constants are $3 and $5.25 respectively
the game of checkers is played on a square board if the length of one side of the board is 4^2 inches what is the are in square inches
Answer:
256
Step-by-step explanation: