Answer:
i got x = -1
Step-by-step explanation:
all i did is find the x intercep nor zero
pls help me i give brainliest
Answer:
Hello!
~~~~~~~~~~~~~~~~~~~~
[tex](m = \frac{1}{3})[/tex]
[tex]m = 1[/tex]
Step-by-step explanation: Use the slope formula to find the slope or Use the slope-intercept form y = mx + b to find the slope m.
Hope this helped you!
Answer:
1/3(x - 1) is the answer.Step-by-step explanation:
Point slope formula = y-y₁=m(x-x₁)
Slope = y1 - y2
m = 1/3
y - 6 = 1/3(x-1)
1/3(x-1) goes in the box.
Hope this helped!
Figure JUMP is a parallelogram. Which of these is congruent to UM?
A. JP
B. UJ
C. MP
D. UP
Problems 27: the number X is the number of car which passed through the
specific stop sign in 1 minutes :
X 0 1 2 3 4 5
P(x) a 0.30 0.05 0.03 0.02 0.01
a) find out the value of a. (1pt)
b). the probability that there are at least 3 cars passing through the stop sign.
(1pt)
c). the expected value of X. (1pt)
d). the variance of X. (1pt)
e) the standard deviation of X. (1pt)
Answer:
a) The value of a= 0.59
b) The probability that there are at-least 3 cars passing through the stop sign
P(x>3) = 0.03
c)
The Expected value of X = 0.62
d)
The variance of X is σ² = 0.9556
e)
The standard deviation of X
σ = 0.9775
Step-by-step explanation:
Given data
X : 0 1 2 3 4 5
P(x) : a 0.30 0.05 0.03 0.02 0.01
a)
∑ [tex]p(x_{i} )[/tex] = 1
a + 0.30+ 0.05+ 0.03+ 0.02+0.01 = 1
a + 0.41 = 1
a = 1 - 0.41
a = 0.59
b)
The probability that there are at-least 3 cars passing through the stop sign
P(x >3) = P( x=4) + P( x=5)
= 0.02 +0.01
= 0.03
c)
X : 0 1 2 3 4 5
P(x) : 0.59 0.30 0.05 0.03 0.02 0.01
The Expected value of X
E(X) = ∑ x P(X= x)
= 0 + 1 ×0.30 + 2×0.05 + 3×0.03 + 4×0.02 + 5×0.01
= 0.30 + 0.1 + 0.09 +0.08 +0.05
= 0.62
The Expected value of X
E(X) = 0.62
d)
The variance of the discrete distribution
σ² = ∑ x²p(x) -μ²
σ² = 0 + 1² ×0.30 + 2² ×0.05 + 3² ×0.03 + 4² ×0.02 + 5²× 0.01 - (0.62)²
= 1.34 - 0.3844
= 0.9556
σ² = √0.9556
e) The standard deviation of the discrete distribution
σ = 0.9775
Which expressions are equivalent to -90 - 60w? Choose three. *Hint: On each answer choice below, use the distributive property to decide which ones match -90-60w. Also remember that -60w-90 is equivalent to -90-60w a) -30(3 + 2w) b) (-9 − 6w) x 10 c) -3(30 - 20w) d) (6 + 4w) × 15 e) −20(4.5 + 3w)
Answer:
a), b), e)
Step-by-step explanation:
a) -30(3 + 2w) = -90 - 60w
b) (-9 − 6w) x 10 = -90 - 60w
c) -3(30 - 20w) = -90 + 60w
d) (6 + 4w) × 15 = 90 + 60w
e) −20(4.5 + 3w) = -90 - 60w
Mathematics, Help, not sure about my answer on this one
Answer:
F. 2 1/9
Step-by-step explanation:
Step 1: Substitute q
[tex]r = 3(\frac{1}{3^n} )+2[/tex]
When you plug in n = 1, 2, 3:
n(1) = 3
n(2) = 2.11111
n(3) = 2.3333
So our answer is F.
expression
equation
formula
identity
inequality
term
factor
multiple
Choose only two words from the box above to make this statement correct.
8y is a _____in the_____7x + 8y
Answer:
Term
Expression
Step-by-step explanation:
8y is a term in the expression
7x + 8y
There are two terms in the expression 7x + 8y
First is 7x
Second is 8y
7 and 8 are coefficient of x and y respectively
7x+8y is an expression because there is no equality sign(=), it doesn't equate to any value.
Unlike an equation that has the Equal to sign(=)
There are three basic types of expression:
1. Arithmetic expression
2. Character expression
3. Logical or relational expression
What point is a solution to the inequality shown in this graph
Answer: A
Step-by-step explanation:
The solution to the graph of inequality given above is the shaded portion or the shaded part of the graph.
Since the point ( -3, -3) and ( 3, -1 ) are on the point line, and the line is a broken line, the inequality means greater than. That means that solution must be greater than those point. They are therefore not part of the solution.
Point ( 5, -5), where x = 5 and y = -5, according to the graph, the shaded portion does not cover y at -5.
Option C is therefore the correct answer which is within the shaded portion. (1, 5)
PLEASE HELP!!!
1) Points: A, B, C, and D are the vertices of a square in the coordinate plane. Give possible coordinates for A, B, C, and D.
2) How do you know your points form a square without plotting the points?
3) Describe a real-world square that your points could represent.
Answer:
(1,1)(2,1)(1,2)(2,2) They create a square because there is an equal distance between adjacent points. They could reperesent a 1x1 square.
Step-by-step explanation:
:)
One line passes through the points (−3,−1) and (1,−9). Another line passes through points (1,4) and (5,6). Are the lines parallel, perpendicular, or neither?
Answer:
the lines are perpendicular
Step-by-step explanation:
the first step to this question will be to find the slope intercept form of each of these lines. to do this we will first:
find the slope-
(-3,-1) and (1,-9)
y2-y1 / x2- x1
-9 - (-1) / 1 - (-3) (negative - negative = positive)
-8 / 4
therefore the slope is:
-2
we know that slope intercept form is y=mx+b
so.. y= -2x +______
I left the last part blank, because we only have the first half of the equation, now we will substitute the value of x and y into the equation from one of the coordinate points given above.
(-9) = -2(1) + _____
now we can simplify:
-9 = -2
this equation (-9 = -2) is not true, therefore we need to determine what we have to do to -2 to make it equal to -9.
-9 = -2 - 7 is true
therefore the answer is :
y= -2x-7
therefore the slope intercept form is y= -2x - 7
now that you know how to find the slope intercept form, you can find the other slope intercept form, and i'll provide the answer:
the slope intercept form you should find is
y= [tex]\frac{1}{2}[/tex]x + [tex]\frac{7}{2}[/tex]
now when we plot both of these lines we can see that:
the lines are perpendicular, meaning the lines pass through each other.
Answer:
the two lines are perpendicular to one another
Step-by-step explanation:
Find the slopes of the two lines and then compare them.
If the slopes are the same, the lines are parallel.
If the slopes are negative reciprocals, the lines are perpendicular.
If neither of these conditions hold, then the lines are neither parallel nor perpendicular.
(−3,−1) and (1,−9): As we go from the first point to the second, x (the "run") increases by 4 and y (the "rise") decreases by 8. Thus, the slope of the line through (−3,−1) and (1,−9) is m = rise / run = -8/4, or m = -2.
(1,4) and (5,6): As we go from the first to the second, x increeases by 4 and y increases by 2. Thus, the slope of the line through (1,4) and (5,6) is
m = rise / run = 2/4 = 1/2.
Because 1/2 is the negative reciprocal of -2, we know that the two lines are perpendicular to one another.
Which points lie on more than one plane?
O A ands
X and Y
O Mands
M and R
Answer:
x and y
Step-by-step explanation:
x and y are on the intersection of the 2 planes, meaning they lie on more than 1 (two) planes.
If we're being technical, it's all of them, because an infinite amount of planes go through 2 points.
Question 3(Multiple Choice Worth 1 points)
(06.02 LC)
A scatter plot is shown below:
Graph shows numbers from 0 to 10 at increments of 1 on the x axis and number s from 0 to 10 at increments of 1 on the y axis. Scatter plot shows ordered pairs 1, 9.1 and 2, 8 and 3, 7.6 and 4, 6.1 and 5, 5 and 6, 4 and 7,4 and 8, 3 and 9, 2.5 and 10, 1.
Which two ordered pairs can be joined to draw most accurately the line of best fit for this scatter plot?
(4.5, 10) and (10, 6.5)
(0, 9.8) and (10, 1.2)
(0, 4) and (5, 0)
(0, 6) and (7, 0)
Answer:
(0,9.8) and (10,1.2)
Step-by-step explanation:
it makes the best line
The two ordered pairs can be joined to draw most accurately the line of best fit for this scatter plot are (0, 9.8) and (10, 1.2).
Option B is the correct answer.
What is a scatterplot?A scatterplot is a type of graphical display that is used to represent the relationship between two continuous variables.
In a scatterplot, each point represents the values of the two variables, with one variable being plotted along the x-axis and the other variable being plotted along the y-axis.
The position of each point on the graph represents the values of both variables for that particular observation.
We have,
To determine which two ordered pairs can be joined to draw the most accurate line of best fit for the scatter plot, we need to look for pairs of points that are representative of the overall trend in the data.
We can plot the given points and visually inspect the scatter plot to find the line of best fit.
10| o
| o
9 | o
| o
8 | o
| o
7 | o
| o
6 | o
|o
5 |o
| o
4 | o o
| o
3 | o
| o
2 | o
| o
1 | o
|____________________________
0 1 2 3 4 5 6 7 8 9 10
From the scatter plot, we can see that there is a general downward trend from left to right and that the points are somewhat scattered around this trend.
One possible way to draw the line of best fit is to connect the points (0, 9.8) and (10, 1.2).
This line represents the overall trend in the data and passes close to many of the given points.
Therefore,
The two ordered pairs can be joined to draw most accurately the line of best fit for this scatter plot are (0, 9.8) and (10, 1.2).
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Which simplified fraction is equivalent of 5.6 3/15 14/25 5/6 14/250
Answer:
4/25
Step-by-step explanation:
What is the degree of the polynomial given below?
F(x) - 2x3 - x2 +5x - 3
Answer:
3
Step-by-step explanation:
3 is the degree of polynomial [tex]f(x) = -2x^3-x^2+5x-3[/tex]
=> Degree of the polynomial is the highest power/exponent contained by the variable in the expression.
Answer:
The degree of the polynomial would be 3, since 3 is the largest exponent
Step-by-step explanation:
How many units
above the x-axis
is the point
located at (9, 6)?
pls help
Answer:
6 units above the x-axis
Step-by-step explanation:
The pair (9,6) are a set of coordinates that indicate how far away from the origin (0,0) the point is.
The coordinates are written (x,y) where 'x' is how far to the left or right of the y-axis (vertical) the point is. The 'y' is how far above or below the x-axis (horizontal) the point is.
So in this case, the set of (9,6) means that the point is located at 9 units to the right of the origin and the y-axis and 6 units above the x-axis
Answer:
6 points
Step-by-step explanation:
the y coordinate is 6, so therefore it is 6 higher
The sum of all the interior angles in a triangle is blank degrees.
Answer:
180 degress
Step-by-step explanation:
triangles always add up to 180
1. Label and display your new polynomial identity 2. Prove that it is true through an algebraic proof, identifying each step 3. Demonstrate that your polynomial identity works on numerical relationships (x + y)* (x^2 + 2xy + y^2) the new polynomial
Answer:
(ax+b) (x+a)
Step-by-step explanation:
(Will mark brainliest if corret.)
Margaret is saving money for her summer vacation. She calculates that her starting amount is 0.4% of the total amount she wants to save. What is 0.4% written as a decimal?
Answer:
0.4% = 0.40 or 0.4
Solve for x
X-5= -9 please help
Answer:
A. x = -4
Step-by-step explanation:
We are given the equation:
x - 5 = -9
In order to solve for x, we must "undo" the -5 by adding 5 to both sides:
x - 5 + 5 = -9 + 5
x = -4
The answer is thus A.
~ an aesthetics lover
x-5= -9
we need to put everything in the right part to easily calculate it:
x=5 -9 or you can write (-9+5)
then, we have that x= -4
Write an equation of a ine in slope-intercept form that passes through a point (4,-6) and has a slope of -3.
Answer:
y= -3x +6
Step-by-step explanation:
slope-intercept form:
y=mx +c, where m is the slope and c is the y-intercept.
Given that the slope is -3, m= -3.
Susbt. m= -3 into the equation:
y= -3x +c
Since the line passes the point (4, -6),
(4, -6) lies on the line and must therefore satisfy the equation. Thus, susbt. (4, -6) into the equation to find the value of c.
y= -3x +c
when x=4, y= -6,
-6= -3(4) +c
-6= -12 +c
c= 12 -6
c= 6
Hence, the equation of the line is y= -3x +6.
Find the missing length indicated.
Answer:
It will be 35 inches sq
Step-by-step explanation:
The values of x is 120.
What is Pythagoras theorem?A theorem stating that the square of the length of the hypotenuse of a right triangle is equal to the sum of the squares of the lengths of the other sides.
in ABC
AC²= AB² + BC²
289²= AB² + BC²........................(1)
In ABD
AB²= AD² + BD²
AB²= 225² + x²
In BCD
BC²= CD² + BD²
BC²= 64² + x²
Put the values in (1)
289²= 225² + x² + 64² + x²
2x² = 28800
x= 120
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What is the maximum possible number of unique zeros for the
function
F(x)= ax 5 +bx+cx-1?
3
4
10
5
Answer:
5 zeros maximum
Step-by-step explanation:
Recall that a polynomial has as many roots (zeros) in the Complex number system, as its degree. So in the given case, where the leading term of the polynomial carries order 5, the maximum number of zeros for the given function cannot be larger than 5.
Suppose you roll a number cube. What is the theoretical probability of rolling a 5?
Answer:
1/6
Step-by-step explanation:
There are 6 possible outcomes when you roll a die
1,2,3,4,5,6
P(5) = number of outcomes with a 5/ total outcomes
=1/6
Which equation shows the inverse property of multiplication?
4+ (-4) = 0
-8 + (-3) = -3+ (-8)
اه انا
1
N
loo
100
Il
Answer:
C
Step-by-step explanation:
The options are:
A. 4 + (-4) = 0
B. -8 + (-3) = -3 + (-8)
C. 2 × 1/2 = 1
D. 8/5 + 0 = 8/5
The inverse property of multiplication states that the product of a number and its inverse is one.
The inverse of 2 is 1/2. The multiplication of 2 × 1/2 = 1 , as the property states.
Can you find the missing segment to the triangle in the image
Choose the equation that represents a line that passes through points (-1, 2) and (3, 1).
0 4x - y = -6
O x + 4y = 7
Ox - 4y = -9
O 4x + y = 2
Answer:
The answer is x + 4y = 7
Equation of a line is y = mx + c
Where m is the slope
c is the y intercept
Slope of the line between the points
(-1, 2) and (3, 1) is
Slope = 1-2/ 3+1 = - 1/4
Equation of the line using point
(-1, 2) is
y - 2 = -1/4(x + 1)
4y - 8 = - x - 1
x + 4y = 7
Hope this helps you
Each person in a community was asked, "What is your favorite type of pet?" The pie chart below summarizes their responses.
(a) Which category was chosen by approximately one-third of
the community?
Bird
C
Fish
Bird
(b) Approximately what percentage of the community chose Cat
or Dog?
Write your answer as a multiple of 10% - that is, 10%, 20%,
30%, ...
None
Other
Dog
(c) If 15% of the community chose Fish, approximately what
percentage chose Other?
Cat
2%
5%
33%
45%
5
?
Answer:
(a) Bird
(b) 40%
(c) 7%
Step-by-step explanation:
The pie chart is attached below.
Approximate the portion of each type of pet as follows:
Fish ≈ 15%
Bird ≈ 33%
Dog ≈ 17%
Cat ≈ 23%
Other ≈ 7%
None ≈ 5%
(a)
The pet category "Bird" was selected by approximately one-third of
the community.
(b)
The proportion of the community that chose Cat was, 23%.
The proportion of the community that chose Dog was, 17%.
So, the proportion of the community that chose Cat or Dog was:
Cat% + Dog% = 23% + 17%
= 40%
(c)
The proportion of the community that chose "Other" was approximately 7%.
5.2 is 23.7 % Of what number? (Round to the nearest hundredth.)
Answer:
21.94
Step-by-step explanation:
Convert the percentage to a decimal.
23.7% = 0.237
Divide the number the decimal.
5.2/0.237 = 21.94
The answer is 21.94.
Help! Please try to do both of u can! 10 pts!
Answer:
54. slope: -1/5 y-intercept: -6
55. slope: -3x y-intercept: 12
Step-by-step explanation:
Answer:
54: slope = m = -1/5
y-intercept = b = -6
55. -3x + 12
Step-by-step explanation:
Note the equation formula:
y = mx + b
Note that:
m = slope
b = y-intercept
x & y = (x , y)
Note the equation:
y = (-1/5)x - 6
slope = m = -1/5
y-intercept = b = -6
Simplify the expression:
-3(x - 4)
To solve, distribute -3 to all terms within the parenthesis. Multiply:
(-3) * (x) = -3x
(-3) * (-4) = 12
-3x + 12 is your answer.
~
Three congruent isosceles triangles $DAO$, $AOB$ and $OBC$ have $AD=AO=OB=BC=10$ and $AB=DO=OC=12$. These triangles are arranged to form trapezoid $ABCD$, as shown. Point $P$ is on side $AB$ so that $OP$ is perpendicular to $AB$.
Point $X$ is the midpoint of $AD$ and point $Y$ is the midpoint of $BC$. When $X$ and $Y$ are joined, the trapezoid is divided into two smaller trapezoids. The ratio of the area of trapezoid $ABYX$ to the area of trapezoid $XYCD$ in simplified form is $p:q$. Find $p+q$.
Answer:
p+q = 12
Step-by-step explanation:
Let's draw the diagram obtained from the given information. Find attached the diagram.
When X and Y divides the line AD and line BY into half respectively, the diagram splits into two trapezoid.
See attachment for diagram.
Ratio of area ABYX to XYCD = p:q
p+q = ?
Area of trapezoid = ½(base 1 + base 2)height
For trapezoid ABYX:
Base 1 = AB = 12, Base 2 = XY
Using Pythagoras theorem to find height of ∆AOB
AO² = AP² + PO²
PO² = (10²-6²) = (100-36)
PO = √64 = 8
height of trapezoid ABYX =h = ½ PO
= 8÷2 = 4
base of triangles in trapezoid ABYX:
base² = 5² -4² = (25-16)
base = √9 = 3
XY = 12+3+3 = 18
Area of trapezoid ABYX = ½(AB + XY)height
= ½(12+18)×4
= ½(120) = 60
Area of trapezoid XYDC = ½(XY + DC)height
Height of both trapezoid = ½ PO = 4
base of triangles in trapezoid XYCD = 3
DC = 3+18+3 = 24
= ½(18+24)×4
= ½(168) = 84
Ratio of both areas
p:q = 60: 84
p:q = 5:7
p+q = 5+7
p+q = 12
A trader claims that the proportion of stocks that offer dividends is different from 0.14. If the trader wants to conduct a hypothesis test, should they use a left-, right-, or two-tailed hypothesis test to analyze whether the proportion of stocks that offer dividends is different from 0.14? Select the correct answer below: Left-tailed test Right-tailed test Two-tailed test
Answer:
The correct option is;
Two-tailed test
Step-by-step explanation:
From the interpretation of the question statement, the trader wants to conduct a hypothesis test on the trader's claim that the proportion of stocks that offer dividends is different from 0.14
Given that the difference is hypothesized, then the null hypothesis, H₀ and the alternative hypothesis, H₁ should be written as follows;
H₀: Null hypothesis (no difference, or no change)
H₁: μ ≠ μ₀ which is hypothesizing difference which is known as a two-tailed test
The confidence level is then selected and the test statistic is calculated