Answer: Solution :
Step 1 :
Make a scatter plot of Lily’s running data.
Step 2 :
To draw a trend line, use a straight edge to draw a line that has about the same number of points above and below it. Ignore any outliers.
Step 3 :
Find the slope of the trend line.
The line passes through points (2, 20) and (4.5, 45).
Use the slope formula.
m = (y2 - y1) / (x2 - x1)
Substitute x1, = 2, y1 = 20, x2 = 4, and y2 = 45.
m = (45 - 20) / (4.5 - 2)
m = 25 / 2.5
m = 10
Step 4 :
Find the y-intercept of the trend line.
Slope-intercept form equation of a line :
y = mx + b
Plug y = 20, m = 10 and x = 2.
20 = 10 · 2 + b
20 = 20 + b
Subtract 20 from both sides.
0 = b
Step 5 :
Use your slope and y-intercept values to write the equation.
Slope-intercept form equation of a line :
y = 10x + 0
So, the equation for the trend line is
y = 10x
Example 2 :
David records the number of chapters and the total number of pages for several books as given below.
No. of chapters
3
4
5
8
10
11
15
17
19
No. of pages
20
44
50
95
90
130
125
170
160
Step-by-step explanation:
4(3m+9-7)
I need help plz
Answer:
12m+8
12m+36-28
find an Equation for the perpendicular bisector of the line segments whose in points are (8,3) and (2,-7)
I need help!!! BADLY
Answer:
118 degrees
Step-by-step explanation:
Opposite angles always have the same angle measure.
Solve.
4(2z - 8) = 16
Answer:
z = 6
Step-by-step explanation:
Given
4(2z - 8) = 16 ( divide both sides by 4 )
2z - 8 = 4 ( add 8 to both sides )
2z = 12 ( divide both sides by 2 )
z = 6
Answer:
z =6
Step-by-step explanation: hope this help
How to solve and answer please.
Answer:
sin 77°
cos 49°
tan 22°
Step-by-step explanation:
use your calculator with trig functions to find the arcsin, arccos, and arctan
I have no idea what this is anymore can someone help
Answer:
Ohh I Learned this! so You Would just do 3.14 x 10 which is 31.4 so you just write 31.4 in and the little two in the top of the In.
Step-by-step explanation:
I hope this helps:> If correct feel free to mark brainliest
Answer:
A=31.4in
Step-by-step explanation:
everything is in front of your eyes, I don't know what's hard in it
the area of the circle rule is:
A=πr²
the givens is the that the radius is 10in and use 3.14 instead of π as the question said
A=3.14(10)
A=31.4in
Write an equation in point-slope form of the line that passes through the two given
points.
(4,7) and (5, 1)
Answer:
y-7=-6(x-4)
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(1-7)/(5-4)
m=-6/1=-6
y-y1=m(x-x1)
y-7=-6(x-4)
what is 5 to the power of 9 equal to ?
Answer:
1953125 I calculated it... Thanks for the points
Step-by-step explanation:
5^9
=1953125 that's the answer trust me
PLEASE HELP ME ASAP??!!
Find the missing side lengths using your notes on the 45-45-90 and 30-60-90 special triangles.
It says that there was an error with my answer, but I don't know what, so I screenshotted what I typed and attached them as 4 images below:
You need a piece of paper to measure 56.34 cm if you tape two together that each measure 35.87 cm, how much do you need to cut off?
Answer:You need to 56.34, by 35.87. And you get your answer. 20.47!
Step-by-step explanation:
PLEASE ANSWER MY QUESTION FROM MY PROFIL!
Have a great day!
Answer:
If
KM
and
NP
are parallel lines and mNOQ = 55°, what is mPOL?
97.8
Step-by-step explanation:
ohh plz help me i really could use it
Answer:
c
Step-by-step explanation:
7.5p - 3 + 4 = -29
what is p?
P = _
Answer:
p = -4
Step-by-step explanation:
7.5p - 3 + 4 = -29
7.5p + 1 = -29
7.5p = -30
p = -4
A male polar bear is 2 7/9 meters long. A female polar bear is 1 5/6 long. Sidney thinks the male polar bear is 1 2/3 meters longer than the female polar bear. She is incorrect. How did she get that answer?
Answer: See explanation
Step-by-step explanation:
The difference in the length of the polar bear will be:
= 2 7/9 - 1 5/6
The lowest common multiple of 9 and 6 is 18.
= 2 7/9 - 1 5/6
= 2 14/18 - 1 15/18
= 17/18
She is incorrect as she subtracted the denominator from the numerators and didn't find their lowest common multiple. She got the answer this way:
= 2 7/9 - 1 5/6
= (2 - 1) (7-5)/(9-6)
= 1 2/3
Seven times the sum of a number and six subtracted from four times the number results in negative twenty
Answer:
-20.67
Step-by-step explanation:
Let the number be represented = x
Seven times the sum of a number and six subtracted from four times the number results in negative twenty
7 ×(x + 6) - 4 x x = -20
7(x + 6) - 4x = -20
7x + 42 - 4x = -20
7x - 4x = -20 - 42
3x = -62
x = -62/3
x = -20.67
The number is -20.67
Three partners in a business venture have incurred a debt of $9,876. Use an integer to express the amount of debt for each one.
Answer:
$3292
$9,876/3 = 3292
gallon of gas: $2.15, 15% markup
Find the 101th term in the arithmetic sequence -3,-5,-7,-9,-11
What did the teacher say to the vampire when he failed his math test?
Answer:
What did the teacher say to the vampire when he failed his math test?
Step-by-step explanation:
what is 5.5% of $24.9
Answer:
1.3695 US$
Step-by-step explanation:
Answer:
1.37
Step-by-step explanation:
First, convert the percent (5.5%) to a decimal by dividing it by 100 and you get 0.055 After this you multiply 0.055 by 24.9 and get 1.37
I’ll give u a kiss if u help me with this ASAP plzzz ;) with an explanation too plzzzz
Answer:dezzzzz znu
Ss s
Step-by-step explanationasaaa
My old account is h acked lol <3
Answer:
PUK me montoon are 8ii88iiii8
I need help..........
Kendra plans to go to the gym on 15 different days this month.
• A one-day pass to the gym is $3.75.
• A monthly membership to the gym is $39.00.
How much money will Kendra save by buying a monthly pass?
$17.25
$16.75
$16.25
$15.75
Answer:4 answer
Step-by-step explanation:
i will mark brain thing help me what is A and B
please help me quickly.
-2x+4y=40 find the y intercept and find the x intercept
What is the solution to this inequality?
−4x−8>−20
Answer:
x < 3
Step-by-step explanation:
−4x − 8 > −20
Add 8 to both sides.
-4x > -12
Divide both sides by -4. Remember that when you multiply or divide both sides of an inequality by a negative number, the direction of the inequality sign changes.
-4x/(-4) < -12/(-4)
x < 3
I need help with geometry
Answer:
70
Step-by-step explanation:
Answer:
∠T=70°
Step-by-step explanation:
360-110+(2×90)=70°
∠T=70°
Examine the following tables of ordered pairs and identify which relations are function select two that apply
How do you solve fractions and multiplication in algebraic, ex:1/3× -4
Answer: x=12
Step-by-step explanation:
1/3 x -4
1/3x=4 <---- First add 4 to each side of the equation (moves the "-4")
1/3x(3)=4(3) <---- Muliply each side by "3" to get rid of the fraction
x=12