Answer:
D
Step-by-step explanation:
Ecology definition of niche
if f(x)=mx+b what are the values of m and b
The m variable is the slope of the line and controls its 'steepness'. A positive value has the slope going up to the right. A negative slope goes down to the right. The b variable is the y intercept - the point where the line crosses the y axis.
example 1
y = mx + b
m = slope b = y-intercept
y = 3x - 1
m = 3 and b = -1
example 2
y = b + mx
b = y-intercept m = slope
y = 5 - 1/2x
m =- 1/2 and b = 5
(hope this helped!!)
can i have brainliest?
can anyone help? i suck at math lol
Answer:16384
Step-by-step explanation:
4*4*4*4+4*4*4
A veterinarian weighed a sample of 666 puppies. Here are each of their weights (in kilograms): 1, 2, 7, 7, 10, 151,2,7,7,10,151, comma, 2, comma, 7, comma, 7, comma, 10, comma, 15 The mean of these weights is \bar x=7\text{ kg} x ˉ =7 kgx, with, \bar, on top, equals, 7, start text, space, k, g, end text. What is the standard deviation? Round your answer to two decimal places. s_x\approxs x ≈s, start subscript, x, end subscript, approximately equals \text{kg}kgstart text, k, g, end text
Answer:
The standard deviation of the weight, σ, is approximately 4.73 kg
Step-by-step explanation:
The weights of the six puppies are;
[tex]x_i[/tex] = 1, 2, 7, 7, 10, and 15
The number of puppies, n = 6
Therefore, we have;
The mean = μ = ∑x/n = (1 + 2 + 7 + 7 + 10 + 15)/6 = 7
The standard deviation, σ, is given as follows;
[tex]\sigma =\sqrt{\dfrac{\sum \left (x_i-\mu \right )^{2} }{n}}[/tex]
By substituting, we have;
[tex]\sigma =\sqrt{\dfrac{ \left (1-7 \right )^{2} + \left (2-7 \right )^{2} + \left (7-7 \right )^{2} + \left (7-7 \right )^{2} + \left (10-7 \right )^{2} + \left (15-7 \right )^{2} }{6}}[/tex]
Simplifying gives;
[tex]\sigma =\sqrt{\dfrac{ \left (-6 \right )^{2} + \left (-5 \right )^{2} + \left (0 \right )^{2} + \left (0 \right )^{2} + \left (3 \right )^{2} + \left (8 \right )^{2} }{6}} =\sqrt{\dfrac{ 36 + 25 + 0 +0+ 9 + 64 }{6}}[/tex]
[tex]\sigma =\sqrt{\dfrac{ 134 }{6}} = \sqrt{\dfrac{67}{3} } \approx 4.72582[/tex]
The standard deviation of the weight, σ ≈ 4.73 kg to two decimal places.
Answer:
It’s actually 5.18 kg on khan
Step-by-step explanation:
Plz plz plz answer fast and sub to Pewdiepie
Answer:
(C)
Step-by-step explanation:
plz give brainlist
Help me with these questions 15points
Determine if the expression - s5 +8s5t² is a polynomial or not. If it is a polynomial, state the type and degree of the polynomial.
Step-by-step explanation:
Its a polynomial because it is
Pls help!!!! It takes Frank 12 minutes to walk a mile. How many miles can he walk in 1 hour?
Answer:
5 miles
Step-by-step explanation:
There are 60 minutes in 1 hour, so to find how many miles he can walk, we simply multiply:
[tex]60 min * \frac{1 mile}{12 min} = 5 miles[/tex]
Jameel Hardware sells door locksets for $74.99, including installation. The company hires
subcontractors to install the locksets. The subcontractors receive $22.00 per lockset installed.
Other overhead costs total $7.56 per set. If Jameel Hardware pays $32.55 for each lockset, what is
the company's net profit?
А
$6.44
$12.88
с
$20.74
D
$34.88
Answer:
12.88
Step-by-step explanation:
Answer:
its 12.88
Step-by-step explanation:
HELP HELP HELP PLEASE ASAP IM STUCK!!
Answer:
B
Step-by-step explanation:
only one that gives the y value of 9 for the x value of 1
Jordan bought a new sketchbook with 150 pages in it for art class. Each day, he uses 2 pages for assignments and sketchings. Which equation represents the total number of blank pages, p, remaining after d days?
A. p= -2d - 150
B. p= -2d + 150
C. p= 2d - 150
D. p= 2d + 150
Answer:
B.
Step-by-step explanation:
He uses two pages each day so they would be negative two and he had positive 150 pages, so the answer would be B.
Gabriella's school is selling tickets to a choral performance. On the first day of ticket sales the
school sold 14 senior citizen tickets and 14 child tickets for a total of $252. The school took in
$154 on the second day by selling 9 senior citizen tickets and 7 child tiekets. Find the price of a
senior citizen ticket and the price of a child ticket.
Answer:
Step-by-step explanation:
The Buddha taught that just as individual states had laws, there was a universal law. Each person's station in life was a reflection of their karma, or the cumulative extent to which they had followed or broken the universal law in previous lives. Chinese leaders began to appoint skilled bureaucrats rather than solely employing hereditary officeholders, and Confucian thinkers held that people became fully developed members of society through a process of education, rather than simply by noble birth.
guys i need help on the midpoint
S (-3, 3) and T (-8, 6)
Answer: It would be (-11/2,9/2)
Step-by-step explanation: Use the midpoint formula to calculate the answer, it is (x1+x2)/2,(y1+y2)/2
Answer:
(-5.5, 4.5)
Step-by-step explanation:
(x2+x1)/2
(y2+y1)/2
-8+-3=-11/2=-5.5
6+3=9/2=4.5
What is the equation of this graphed line?
I will mark brainlest!!
Answer:
y = -9/8x +7
Step-by-step explanation:
We know two points on the line so we can find the slope
m = ( y2-y1)/(x2-x1)
m = ( -2 -7)/(8 -0)
= -9/8
We also know the y intercept which is 7
The slope intercept form of the line is
y = mx+b where m is the slope and b is the y intercept
y = -9/8x +7
Answer:
[tex]y=-\frac{9}{8}x+7[/tex]
Step-by-step explanation:
Slope-intercept form is y=mx+b
Use the formula for slope: m=(y2-y1)/(x2-x1)
m=(-2-7)/(8-0)
m=-9/8
The graph shows that b, the y-intercept, is at (0,7)
Therefore, the final equation is [tex]y=-\frac{9}{8}x+7[/tex]
The social study teacher wants to know weather the students in the entire school prefers a model United national activity. The teacher draws a random sample from the following groups. Which group best represents the population he should take a random sample from to get the best results For His survey A All teachers in the school. B all boys in each grade. C all students in each grade D our students in the social studies club
Answer:
I'm pretty sure your answer would be B
Step-by-step explanation:
The teacher wants answers from all the students but it would take to long to ask every single person so it would only make sense to ask every boy in each grade
Factor the common factor out of each expression. PLEASE HELP! WILL GIVE BRAINLIEST
Answer:
1. 4(4-9m) 2. 8(x-5) 3. 7(5-3a) 4. 2(2n-1) 5. -10(3n+1) 6. 6(5n+1) 7. 10(3x+7) 8. -3(n+4) 9. 2(9-2a) 10. 8(1-k) 11. 5(8-7n) 12. 5(9x-5)
Step-by-step explanation:
It’s me, the girl who hates geometry and need help with figures!!!
Answer:
Yes. It is an obtuse triangle
help please it’s math
Answer:
Step-by-step explanation:
You should rewrite it in the form of [tex]a^{2} + b^{2}[/tex], where a=10 and b=3x, [tex]10^{2}-(3x)^{2}[/tex]. Then use the difference of squares. to get (10+3x)(10-3x)
Answer:
(10−3x) (10+3x)
Step-by-step explanation:
100 - 9x²
100 - 9x²10²−(3x)²
(10−3x) (10+3x)
1) x + y = -15
2) 2y+ 8x = 1
3)-2x + y = 1
4) 3y - 2x = 9
5) 2y = -1x - 8
6)y -4 = -3(x-3)
Answer:
Use Calculator
Step-by-step explanation:
E
The difference between 1/3 of a certain number and 1/4 of the same number is 3.
What is the number?
24. 36. 48. 60. or 72?
Answer:
36
Step-by-step explanation:
Let the required number be x.
[tex] \frac{1}{3} \: of \: x = \frac{1}{3}x = \frac{x}{3} \\ \\ \frac{1}{4} \: of \: x = \frac{1}{4}x = \frac{x}{4} \\ \\ according \: to \: the \: given \: condition \\ \\ \frac{x}{3} - \frac{x}{4} = 3 \\ \\ \frac{4x - 3x}{3 \times 4} = 3 \\ \\ \frac{x}{12} = 3 \\ \\ x = 12 \times 3 \\ \\ \huge \red{ \boxed{ x = 36}}[/tex]
The number is 36.
Given that,
The difference between one-third of a certain number and one-fourth of the same number is 3.Here we assume the number be x.
Based on the above information, the calculation is as follows:
[tex]\frac{x}{3} - \frac{x}4} = 3 \\\\\frac{4x - 3x}{12} = 3\\\\x = 36[/tex]
Learn more: brainly.com/question/17429689
i need help, please!!!
Answer: m = 1/3
Step-by-step explanation:
Reflection over the y-axis of the point ( − 4 , 1 )
Answer:
reflection would be (4,-1)
Step-by-step explanation:
find the equation of the line.
Please explain how to do this
Due tonight please help!!!!
Will give brainlist
Answer:
y=5x+11
Step-by-step explanation:
using point-slope equation, we substitute.
parallel lines have the same slope.
y-y¹=m(x-x¹)
y-6=5(x+1)
y-6=5x+5
y=5x+11
(please comment if you're confused on anything!)
Answer:
Find the equation of a line given that you know a point of point on the line in the slopes the equation of the line is typically written as y=mx+b where am is slope and b is the y- intercept
pls help
y = 4x + 2
Answer:
do you want a graph?
Step-by-step explanation:
x is -0.5
y= 2
answer quickly please
Answer:
Positive
Step-by-step explanation:
Answer:
positive
Step-by-step explanation:
Use the picture below to solve for the missing information, given PQ = 2x + 8, QR = x + 11, and PR = 5x - 3.
Answer:
Step-by-step explanation:
I think x=-2
The value of x is 11. Then the length of the line segment PR, PQ, and QR will be 52, 30, and 22, respectively.
What are collinear points?An axis is a term used to describe a line on which points are located, particularly if that line is connected to a triangle or other geometric shape. Since two factors determine a line, two points are transparently collinear. If the points are in a line, then the points are collinear points.
Let A, B, and C be the collinear points. Then the condition of the collinear will be
AB + BC = AC
PQ = 2x + 8, QR = x + 11, and PR = 5x - 3. From the figure, the points P, Q, and R are the collinear points. Then we have
PQ + QR = PR
2x + 8 + x + 11 = 5x - 3
3x + 19 = 5x - 3
22 = 2x
x = 11
Then the line segment PR, PQ, and QR will be
PQ = 2 × 11 + 8
PQ = 22 + 8
PQ = 30
QR = 11 + 11
QR = 22
PR = 5 × 11 - 3
PR = 55 - 3
PR = 52
The value of x is 11. Then the length of the line segment PR, PQ, and QR will be 52, 30, and 22, respectively.
More about the collinear points link is given below.
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Can someone pls help me / alguien me puede ayudar
Answer:
The simplified expression is:
[tex]\frac{2}{5}y+\frac{1}{5}x-0.2y-6+\left(-2\right)=0.2y+0.2x-8[/tex]
Step-by-step explanation:
Given the expression
[tex]\frac{2}{5}y+\frac{1}{5}x-0.2y-6+\left(-2\right)[/tex]
[tex]\mathrm{Remove\:parentheses}:\quad \left(-a\right)=-a[/tex]
[tex]=\frac{2}{5}y+\frac{1}{5}x-0.2y-6-2[/tex]
[tex]\mathrm{Group\:like\:terms}[/tex]
[tex]=\frac{2}{5}y-0.2y+\frac{1}{5}x-6-2[/tex]
Add similar elements
[tex]=0.2y+\frac{1}{5}x-6-2[/tex]
[tex]=0.2y+\frac{x}{5}-6-2[/tex]
[tex]=0.2y+\frac{x}{5}-8[/tex]
[tex]=0.2y+0.2x-8[/tex]
Thus, the simplified expression is:
[tex]\frac{2}{5}y+\frac{1}{5}x-0.2y-6+\left(-2\right)=0.2y+0.2x-8[/tex]
Express (x-5)^2 as a trinomial in standard form.
Answer:
x² - 10x + 25
General Formulas and Concepts:
Algebra I
Standard Form: ax² + bx + c = 0Expand by FOIL-ing (First, Outside, Inside, Last)Step-by-step explanation:
Step 1: Define
(x - 5)²
Step 2: Expand
Rewrite: (x - 5)(x - 5)Expand [FOIL]: x² - 5x - 5x + 25Combine like terms: x² - 10x + 25Answer: x^2 -10x + 25
Step-by-step explanation:
First example the expression.
(x -5)(x-5) Now find the product
(x -5)(x-5) = x^2 -5x -5x + 25
x^2 - 5x - 5x + 25 Now combine like terms to break it down.
x^2 -10x + 25
Please help please ASAP
Answer:
#1 parallel
#2 parallel
#3 perpendicular
Step-by-step explanation:
Lines parallel have the same slope 1 and 2 have same slope of -5/3
3 is perpendicular: slope is 3/5 ( slope of any line perpendicular to a line with slope m is negative reciprocal )
statistics what is meant by re-expressing or transforming data? what is the purpose of re expressing or transforming data
Re-expressing data means making the facts more appropriate for evaluation by our methods.
We can not use a linear version until the connection among the 2 variables is linear. Often re-expression (transformation) can save the day, straightening bent relationships in order that we are able to suit and use a easy linear version.
• Two easy approaches to re-specific facts are with logarithms and reciprocals.
• Re-expressions may be visible in regular life— all and sundry does it.
We can re-specific gas performance as gallons in step with hundred miles (a reciprocal) and get rid of the bend in the authentic scatterplot.
Therefore, re-expressing data means making the facts more appropriate for evaluation by our methods.
Learn more about re-expressing data here:
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how do you create equations with variable on both sides and use them to solve problems