Answer:
30
Step-by-step explanation:
What is the equation of the trend line in the scatter plot?
Someone pls help I will pay if you get it right
Given:
The graph of a trend line.
To find:
The equation of the trend line.
Solution:
From the given graph it is clear that the trend line passes through the points (0,4) and (9,7). So, the equation of the trend line is:
[tex]y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]
[tex]y-4=\dfrac{7-4}{9-0}(x-0)[/tex]
[tex]y-4=\dfrac{3}{9}(x)[/tex]
[tex]y=\dfrac{1}{3}x+4[/tex]
Therefore, the equation of the trend line is [tex]y=\dfrac{1}{3}x+4[/tex].
A map has a scale of 3 cm and 20 cm which statement is true or false two cities are actually 66 cm part are9.9 cm part
When Jaya goes bowling, her scores are normally distributed with a mean of 105 and a standard deviation of 10. Using the empirical rule, determine the interval that would represent the middle 95% of the scores of all the games that Jaya bowls.
Answer: (75, 135)
Step-by-step explanation:
Because the empirical rule is 3 standard deviations of the mean you would add and subtract to get your desired interval.
In this case our mean is 105 and our deviation is 10.
What you would do is add 10 to 105, 3 times to find your greatest number and the you would subtract 10 from 105, 3 times to get your lowest number.
105 + 10 + 10 + 10 = 135
105 - 10 - 10 - 10 = 75
Answer: (75, 135)
Answer:
Step-by-step explanation:
The answer is 85,125
Solve for x, 2-x= -6-4x
a . -2/3
b.-2/5
c-8/3
d.-8/5
Answer:
-8/3
Step-by-step explanation:
2 - x = - 6 - 4x <-- Add 4x to the left side
2 + 3x = - 6 <-- Subtract 2 from the left side
3x = -8 <-- Divide 3 on both sides
x = -8/3
Answer:
x = -8/3
Step-by-step explanation:
Consolidate x terms on the right side:
2-x= -6-4x becomes 2-x + x = -6-4x + x, which in turn becomes:
2 = -6 - 3x, or 3x = -8. Then, dividing both sides by 3, we get x = -8/3
What is the value of a2+0.4a for a=0.5?
Could you guys please help me solve this basic math. PLS OMG ITS DUE :(
Answer:
21÷-3=-7
I dont know what all those extra boxes are for but I hope I helped a little
Conditions of a triangle = AAA
50 degrees, 60 degrees, 70 degrees
What can you make:
O more than 1 triangle
O a unique triangle
O not a triangle
Answer:
One triangle
Step-by-step explanation:
That's the answer....
The diagonals in a kite __________.
a) bisect each other
b) are perpendicular
c) are congruent
Answer:
B
Step-by-step explanation:
Diagonals in a kite are perpendicular. I just learned this. Mark Brainliest if you get it right!!!
Which equation has the same solution as x^2-6x-12=0
1) (x+3)^2=21
2) (x-3)^2=21
3) (x+3)^2=3
4) (x-3)^2=3
Answer:
B) (x-3)^2=21
Step-by-step explanation:
BRAINLIEST 40 POINTS ALL QUESTIONS PLEASE!!
Answer:
Step-by-step explanation:
The shapes have the same height, but the base of the rectangle is half the base of the triangle. They have the same area.
:::::
area of rectangle = base × height = 4 units × 6 units = 24 units²
:::::
area of triangle = ½×base×height = ½×8 units × 6 units = 25 units²
:::::
The triangle looks bigger, but isn't. Shape affects area.
Zoe bought 5 chicken wings for $7.50. What's the unit cost of one wing? On the double number line below, fill in the given values, then use multiplication or division to find the missing value.
Answer:
Step-by-step explanation:1.10+1.10+1.10+1.00+1.00+1.00+1.00
Answer:
Step-by-step explanation: 1.50
please help me, I'm stuck on the second one. Also for i) i got angle ABD because angles in a semicircle measures 90 degree and OAX because the angle between the tangent and a radius is 90 degrees
Answer:
i)
DA is diameter and AX is tangent to circleYour answer is correct
m∠ABD = 90°, m∠DAX = 90°ii)
Given m∠BAX = 42° and ∠DAB is complementary with BAX ⇒
m∠DAB = 90° - 42° = 48°DC = BC ⇒ intercepted arcs are same ⇒
∠CDB = ∠BDCmDC = mCB ⇒ mDCB = ∠DAB = 48° ⇒
m∠CDB = m∠BDC = 1/2*48 = 24°iii)
∠CBA
∠CBA is supplementary with ∠ADC as opposite angles of cyclic quadrilateral (∠ADB = ∠BAX = 42°)
m∠ADC = m∠ADB + m∠CDB = 42° + 24° = 68°m∠CBA = 180° - m∠ADC = 180° - 68° = 112°∠BAE
EA║CB and AB is transversal ⇒ CBA and BAE are supplementary angles:
m∠BAE = 180° - 112° = 68°∠DCE
∠DCE = ∠DCB - ∠BCEm∠DCB = 180° - m∠DAB = 180° - 48° = 132°m∠BCE = 180° - m∠BAE = 180° - 68° = 112°∠DCE = 132° - 112° = 20°Sandy bought 1 1/4 pound of turkey and 1/2 pounds of cheese at the deli. Both items are on sale for $4 per pound. What is the total cost?
Sandy's $8.50 been on the deli counter.
5.
Loren is running in a long distance race. She is able to keep a steady pace of 10 feet per second.
Answer:
a or c Im not sure
Step-by-step explanation:
I think b though
The line which represents the speed as 10 feet per second is line B thus none of the given options are correct.
What is a graph?A graph is a diametrical representation of any function between the dependent and independent variables.
For example y = x² form a parabola now by looking at only the graph we can predict that it has only a positive value irrespective of the interval of x.
As per the given,
Loren is running at speed of 10 feet per second.
Speed = distance covered/time taken
10 = distance covered/time taken
In line B, the ratio of distance covered/time taken is 10.
Thus, line B will be correct.
Hence "The line which represents the speed as 10 feet per second is line B thus none of the given options are correct".
To learn more about graphs,
brainly.com/question/16608196
#SPJ5
PLSSS HELP 40 POINTSS ILL SEND 30 MORE IF U HELPP PLSSS
The cost of the hiking trip this year is 2/3of the cost of last year's trip. This year's trip cost $32
1. Write an equation that represents the cost of last years trip.
2.What was the cost of last year's trip
Answer:
The equation is ( 32/2 ) × 3 = 48.
Step-by-step explanation:
In order to find the answer, we must find one third of last years trip. To do this, we can simply divide the cost of this year's trip by two, 32/2=16.
Now if we multiply this years trip by 3, 16×3=48, we can see that the total cost of last years trip was $48.
If we'd like to turn this into a equation, it looks like this:
( 32/2 ) × 3 = 48.
Erika paid a self-employment tax last year. She calculated the self-employment tax for different amounts of net
earnings and recorded them in the table shown.
Self-Employment Tax
Net
Earnings, X
Self-Employment
Tax, Y
$0
$0
$15,000
$2,295
$30,000
$4,590
$45,000
$6,885
Which function describes the relationship between x, the amount of net earnings, and y, the self-employment tax?
1-12
5
10
11
13
14 15 16 17
Back
Review/End
Next
Answer:
y=153/1000x
Step-by-step explanation:
Answer:y=153/1000x
Step-by-step explanation:
which expression is equivalent to 6x + 8
Need help what is the answer, please.
I am so confused
NO SPAM ANSWERS!!!!
(YOU HAVE BEEN WARNED)
NO LINKS AS WELL!!!
(WILL BE REPORTED IF NOT APPLICABLE)
Answer:
V = 405.04
Step-by-step explanation:
Volume of a cone:
V = πr²(h/3)
V = 3.14(6.1²)(10.4/3)
V = 3.14(37.21)(10.4/3)
V = 405.04
Express as a trinomial.
(x-9)(x+4)
can someone please help. I need the answer
Answer:
Ella since it is m cubed in brackets X 5 and the 3 is not affected so stays as a 3
Answer:
Ella
Step-by-step explanation:
Ella, because 5(m times m times m)-3 is the same as 5m^3- 3, just expanded.
7. Find the slope of the line.
slope = rise/run
= ?/?, or ?
the slope is ___
Answer:
5
Step-by-step explanation:
You can find the slope with rise over run. Rise means up and run means moving right or left. In this case rise is 10 and run is 2. This means the fraction will look like 10/2. Simplify this to get 5 and that is your answer.
Hope this helps.
Answer:
slope 10/2=5
Step-by-step explanation:
10 rise
2 run
Solve for x:
3 - 2x = -7
A. 2
B. -5
C. 5
D. -2
what are the intercepts of this function f(x)= -x^2 + 6x - 5
What is an equation of the line that passes through the points (0,-5) and (-6,0)?
Put your answer in fully reduced form.
Answer:
y=-5/6x-5
Step-by-step explanation:
0-(-5)/-6-0
-5/6 slope
y-(-5)=-5/6(x-0)
y+5=-5/6x
y=-5/6x-5
MIDTERMS ARE HARD :((((((( PLZ HELP
Answer:
c. x-intercept is (6, 0) and the y-intercept is (0, 10).
Step-by-step explanation:
i hope this helps :)
Let x=−118 x = - 11 8 and y=−114 y = - 11 4 .
Answer:
Let x=−118 and y=−114 . On a number line
Which expression has a negative value?
Multiple choice question.
A) x+y
B) x−y
C) x·y
D) xy
Step-by-step explanation:
what is t- 40= 3 please help
Answer:
t = 43
Step-by-step explanation:
t - 40 = 3
t = 43
Add 40 to both sides.
Solve the system of equations by substitution.
y=3x-10, 2x+3y=14
Its 5-3 MathXL btw
What is the slope of the line that passes
through the points (3, 2) and (-1,-4)? Write
your answer as a fraction in simplest form
Answer:
Step-by-step explanation:
Slope = (Difference of y-coordinates)/(difference of x-coordinates)
= (-4 - 2)/(-1 - 3)
= (-6)/(-4)
= 3/2
[Exponential] |x|-2|-1|0|1|2| |y|2/9|2/3|2|6|18| When the x-value increases by 1, the y-value ________ (b-value)
Answer:
[tex]b = 3[/tex]
The value of y triples
Step-by-step explanation:
Given:
[tex]\begin{array}{cccccc}x & {-2} & {-1} & {0} & {1} & {2} \ \\ y & {\frac{2}{9}} & {\frac{2}{3}} & {2} & {6} & {18} \ \end{array}[/tex]
Required
Determine b value
An exponential equation is:
[tex]y = ab^x[/tex]
When [tex]x = 0; y =2[/tex]
So:
[tex]y = ab^x[/tex]
[tex]2 = a * b^0[/tex]
[tex]2 = a[/tex]
[tex]a = 2[/tex]
When [tex]x = 2; y = 18[/tex]
So:
[tex]18 = a * b^2[/tex]
Substitute 2 for a
[tex]18 = 2 * b^2[/tex]
Divide by 2
[tex]9 = b^2[/tex]
Take positive square roots of both sides
[tex]3 = b[/tex]
[tex]b = 3[/tex]