a heater is turned on in a cold room the scatterplot shows the relationship between the length of time since the heater was on in the temperature of the room the y-intercept of the estimated line of best fit is at (0, b). enter the approximate slope of the estimated line of best fit in the second response box
Answers
Answer:
A estimation of the slope is (1/2) °C/min
Step-by-step explanation:
A linear relationship can be written as:
y = a*x + b
Where a is the slope and b is the y-intercept.
If the line passes through the points (x₁, y₁) and (x₂, y₂), then the slope is:
a = (y₂ - y₁)/(x₂ - x₁)
Then we just need to look at the graph and find two points that belong to the graphed line (not the points) and estimate the slope
We can see that the line passes near the points (14 min, 14°C) and (18 min, 16°C)
Then the slope is:
a = (16°C - 14°C)/(18 min - 14 min) = (2°C)/(4 min) = (1/2) °C/min
Answer:
what were the answers? IStep-by-step explanation:
Related Questions
SOMEONE PLEASEEEE HELPPPP?!?!?!?!!?
Answers
Answer:
Step-by-step explanation:
Top/Bottom = 12
Sides = 15
Front/Back = 20
20 + 15 + 12 = 47
47 / 1/2 = 23.5
Here are two rectangular prisms: K, L. K= 6, 4, 5. L=5,5,5 1. Which figure do you think has the longer diagonal. 2. Calculate the lengths of both diagonals. Which one is actually longer?
Answers
Answer:
sorry. I need points.
Step-by-step explanation:
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What is the percent increase or decrease between $7.80 and $6.63?
Answers
Amount One: $7.80
Amount Two: $6.63
You’re looking for what percent of 7.80 is 6.63.
$7.80 * X = $6.63.
X = $6.63/$7.80
X = .85
So $6.63 is 85% of $7.80.
Percents are out if 100, so if you want to know what the percent difference is, subtract 85% from 100%.
100% - 85% = 15%.
As you’re going form $7.80 to $6.63, the number is getting smaller so it’s a decrease. Overall, it’s a 15% decrease from $7.80 to $6.63.
whitch is greater 2 yards or 5 feet
Answers
Answer:
Two yards
Step-by-step explanation:
2 yards = 6 feet
*SOCIAL DISTANCE RULES APPLY IN YOUR STATE*
Answer:
2 yards
Step-by-step explanation:
Yes 1 yard equals 3 feet so 2 yards is 6 feet making 2 yards greater than 5 feet
Simplify:
- 5 1/4 -( -7 1/2)
Answers
Answer:
-5 1/4-(-7 1/2 is simplified to 9/4
Step-by-step explanation:
-5 1/4 is simplified to -21/4 -(-7 1/2
-7 1/2 is simplified to -15/2 and two negatives make a positive.
so the equation now becomes
-21/4+15/2
15/2 times 2 is 30/4
-21/4+30/4 is 9/4
The answer is 9/4
Circle any part of this problem where you see a mistake (there is at least one) then explain why it was a mistake in the textbox and type in the correct answer.
Answers
Answer:
Circle the -3 or the -2 in the final product
Step-by-step explanation:
If you multiply it out, the last terms are -2 and -3 which equal 6, not negative 6 so, that would be wrong factoring.
The perimeter of a rectangular painting is 270 cm.
If the length of the painting is 82 cm, what is its width?
Width of the painting: []
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Answer:
p/2 _l step 1. 270 ÷2= 135. 135- 82 = 53 width of the painting = 53
!!!!NEED HELP ASAP!!!! NO LINKS OR REPORT
Answers
Answer:
Step-by-step explanation:
Infinitely many solutions means that one side of the equals sign is exactly the same as the other side. We can achieve that easily by multiplying through the parenthesis and then combining like terms.
2(6x + 4) - 5x is 12x + 8 - 5x which simplifies down to 7x + 8. That is what goes on the right side of your equation.
Which of the following are possible rational roots of the polynomial function? Check all that apply. F(x) = 5 x2-3x+3
A. ±3
B. ±1
C. ±1/3
D. ±5
E. ±1/5
Answers
The possible rational roots are (a) ±3, (b) ±1, (e) ±5
How to determine the possible roots?The polynomial function is given as:
f(x) = 5x^2 - 3x + 3
Take the factors of the first term and the last term
5 = 1, 5
3 = 1, 3
The rational root is then calculated using:
Roots =±(Factors of 3)/(Factors of 5)
This gives
Roots =±(1, 3)/(1, 5)
Solve the expression
Roots = ±1, ±3/5, ±1/5, ±3
Hence, the possible rational roots are (a) ±3, (b) ±1, (e) ±5
Read more about rational roots at:
https://brainly.com/question/17754398
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Calculate the value of this
Answers
Answer: here’s your answer
Step-by-step explanation:
The equation of the trend line is y = -0.36x + 12.6 use the equation to of the trend line to predict the wind chill for a wind speed of 51 mi/h round your answer to the nearest degree. The wind chill at 51 mi/h
Answers
Given:
The equation of the trend line is:
[tex]y=-0.36x+12.6[/tex]
In this equation y represents the wind chill and x represents the wind speed.
To find:
The wind chill at 51 mi/h.
Solution:
We have,
[tex]y=-0.36x+12.6[/tex]
Putting [tex]x=51[/tex], we get
[tex]y=-0.36(51)+12.6[/tex]
[tex]y=-18.36+12.6[/tex]
[tex]y=-5.76[/tex]
Round the answer to the nearest degree.
[tex]y\approx -6^\circ[/tex]
Therefore, the wind chill at wind speed 51 mi/h is -6°.
Plz hurry find the surface area and volume to the nearest whole number
Answers
Answer:
87.96 or 88 - surface area
62.83 or 63 - volume
Step-by-step explanation:
Answer:
Surface area: 89 yd
Volume = 63 yd
Step-by-step explanation:
Surface area:
A=2πrh+2πr^2
=2·π·2·5+2·π·2^2
=87.96459
Volume:
V=πr2h
=π·22·5
=62.83185
Herman joins three of his friends at the movies. They decide to share a jumbo box of popcorn to save money. A jumbo box is twelve inches on all sides. What is the volume of a jumbo box of popcorn?
Answers
Answer:
$4.25
Step-by-step explanation:
Let price of drink be x
price of tub y
You have 4x+2y=32.5 (1) and
x = y -3.5 (2)
Plug for x from (2) into (1):
4(y-3.5) + 2y = 32.5
4y -14 +2y = 32.5
6y = 14+32.5
y = (46.5)/6 = $7.75 the price of tub
x= y-3.5 = 7.75 - 3.5 = $4.25
Jello someone please help me
No links or files please
Answers
Answer:
3. 43 4. 84 5. 522
Step-by-step explanation:
You can write the equation of the line if you have two points on the line.
Is that true or false?
Answers
If F(x) = 4(x-8) + 2, what is the value of F(2)?
Answers
I’m not 100% sure on this
Answers
Answer:
it's D I think
Step-by-step explanation:
..........
Answer:
D
Step-by-step explanation:
A line segment is a straight line that ends , the arrows mean the the ray or line dont end
Help please Thank you!!!!!
Answers
Answer:
B
Step-by-step explanation:
B because the graph doesn't show a liner line
but im not really sure nout it tho
If a cylinder has a height of 7 m and its base has a radius of 6 m, what is its volume? Use 3.14 for 5 and
round the answer to the nearest whole number.
O 490 m3
791 m3
923 m3
1,583 m3
Answers
Answer:
Step-by-step explanation:
Applying fertilizer increases yield by 3 bushels an acre for corn. If you have 2304 acres, how much will your yield increase?
Answers
Answer:
6912 bushels
Step-by-step explanation:
The increase is 3 bushels per acre.
For 2304 acres, the increase is
2304 acres * 3 bushels/acre = 6912 bushels
The area of a triangular sail is given by the expression 12bh, where b is the length of the base and h is the height. What is the area of a triangular sail in a model sailboat when b = 12 inches and h = 7 inches?
Answers
Answer:
42 square inches
Step-by-step explanation:
Area of a triangle = (1/2)(base)(height)
A = 1/2(12)(7)
A = 1/2(84)
A = 42
Andre and Mai are discussing how to solve for side AB. Andre thinks he can
use the equation tan(12 degrees)=x/6 to solve for AB. Mai thinks she can use
the equation tan(78 degrees)=6/x to solve for AB. Do you agree with either of
them? Show or explain your reasoning.
Answers
Answer:
Both Andre and Mai are correct
Step-by-step explanation:
A drawing of the the triangle ΔABC is created with MS Visio and attached here
In the drawing, we have;
Segment AB = x
Segment AC = 6
By trigonometric ratio, in a right triangle we have;
[tex]Tan(\angle X) = \dfrac{The \ length \ of \ the \ opposite \, side \ to \ \angle X }{The \ length \ of \ the \ adjacent\, side \ to \ \angle X}[/tex]
Where 'X' = 12° as shown in the figure, we have;
[tex]tan(12 ^{\circ}) = \dfrac{AB}{BC} = \dfrac{x}{6}[/tex]
Therefore, Andre is correct
Similarly, we have;
[tex]tan(78 ^{\circ}) = \dfrac{BC}{AB} = \dfrac{6}{x}[/tex]
Therefore, Mai is also correct
Therefore, Andre and Mai are correct.
Ron made a scale drawing of his bedroom. The scale in
the drawing is 2 inches represents 5 feet. The actual
length of his bedroom was 13 feet. What is the length of
the bedroom on the scale drawing?
PLEASE HELP!!
Answers
Answer:
[tex]5.2\:\mathrm{in}[/tex]
Step-by-step explanation:
We can set up the following proportion and solve for length ([tex]\ell[/tex]):
[tex]\frac{2}{5}=\frac{\ell}{13},\\\\\ell=\frac{2\cdot 13}{5}=\frac{26}{5}=\boxed{5.2\:\mathrm{in}}[/tex]
There are 1,024 players in a tennis tournament. In each round, half the players are eliminated. Which function can be used to find the number of players remaining in the tournament at the end of x rounds?
Answers
Answer:
1,024 ÷ by how many number of rounds= x
Answer:
1,024(0.50)^x That is the answer......................................
A game has a deck of cards with 5 red cards and 3 blue cards. You randomly choose one card and without replacing it choose another card. What is the probability of choosing a red card and then a blue card?
A: 2/7
B:10/49
C:15/56
D:15/64
Answers
Answer: C (15/56)
Step-by-step explanation:
probability of red card: 5/8
probability of blue card (after): 3/7
5/8 times 3/7 = 15/56 so C
Find the fourth proportional of 5,9,4
Answers
Answer:
let
Step-by-step explanation:
let the third proportion be x
Since 5,9,4,x
5.x=9.4
5x=36
x=36/5
x=7.2
answer
How do I find the indicated value for this problem?
Answers
Answer:
t_n =a +(n-1)d
t_100 = 2+ (100-1)6
= 2+99× 6
= 2 +594
= 596
hello please help i’ll give brainliest
Answers
Answer:
Living
Step-by-step explanation:
What is the surface area of this figure? Round to the nearest tenth if necessary.
10 ft
12 ft
6 ft
8 ft
Answers
Data about cell phone usage was collected from 14 different people. The list shoes the number of incoming calls each person received during the month of August. 87, 102, 131, 132, 155, 173, 178, 204, 211, 244, 253, 278, 301, 371, What is the interquartile range of data?
Answers
The interquartile range (IQR) of the given data = Upper Quartile (Q3) - Lower Quartile (Q1) = 121.
What is the Interquartile Range of a Data?The interquartile range (IQR) = Upper Quartile (Q3) - Lower Quartile (Q1)
Given the data:
87, 102, 131, 132, 155, 173, 178, 204, 211, 244, 253, 278, 301, 371
Upper quartile (Q3) = 253
Lower Quartile (Q1) = 132
Interquartile range (IQR) of the data = 253 - 132
Interquartile range (IQR) of the data = 121
Learn more about the interquartile range (IQR) on:
https://brainly.com/question/17083142
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