Answer:
140 minutes
Step-by-step explanation:
Using m = (y₂ - y₁)/(x₂ - x₁) , we find the rate at which Snail A moves which is also the gradient of the line with which it moves. Given that Snail A was 12.5 inches above the ground at 10 minutes and 16 inches above the ground at 24 minutes, x₁ = 10 min, y₁ = 12.5 inches, x₂ = 24 min and y₂ = 16 inches.
So, m = (y₂ - y₁)/(x₂ - x₁)
m = (16 - 12.5)/(24 - 10) = 3.5/14 = 0.25
Also, the equation of the line,
(y - y₁)/(x - x₁) = m
(y - 12.5)/(x - 10) = 0.25
cross-multiplying, we have
y - 12.5 = 0.25(x - 10)
expanding the bracket, we have
y - 12.5 = 0.25x - 2.5
adding 12.5 to both sides, we have
y - 12.5 + 12.5 = 0.25x - 2.5 + 12.5
y = 0.25x + 10
Since Snail B started at 3 inches above the ground and climbed 0.3 inch per minute. The snails continued at the same speeds, its distance y moved is y = 0.3t + 3
We now find the time x it takes the snails to cover the same distance by equating both expressions. So,
0.25x + 10 = 0.3x + 3
collecting like terms, we have
10 - 3 = 0.3x - 0.25x
7 = 0.05x
0.05x = 7
x = 7/0.05
x = 140 minutes
DUE TODAY HELP
It is not possible to plagiarize in math when the questions are multiple choice since
you don't have to write out your work.
True
False
Alicia uses 7.4 pints of white paint and blue paint to paint her bedroom walls. 2 5 of this amount is white paint, and the rest is blue paint. How many pints of blue paint did she use to paint her bedroom walls?
Answer:
4.9
Step-by-step explanation:
Help me out , plzzzzz
Answer:0.14%
Step-by-step explanation:
What is 5/8-1/8 in the simplest form
Answer:
1/2
Step-by-step explanation:
Write an exponential function whose graph passes through the given points (0, - 2) and (- 1, - 4)
Answer:
[tex]y = 2(0.5) {}^{x} [/tex]
Step-by-step explanation:
Use the general formula of exponential equation
[tex]y = ab {}^{x} [/tex]
Plug 0,2 into the function
[tex] - 2 = ab {}^{0} [/tex]
[tex] - 2 = a \times 1[/tex]
[tex]a = - 2[/tex]
[tex]y = - 2b {}^{x} [/tex]
[tex] - 4 = - 2b {}^{ - 1} [/tex]
[tex]2 = b {}^{ - 1} [/tex]
[tex] {2}^{ \frac{ 1}{ - 1} } [/tex]
[tex]2 {}^{ - 1} = 0.5[/tex]
B=0.5
[tex]y = 2(0.5) {}^{x} [/tex]
(HELP ME ASAP PLEASE) Line r is the image of the linear equation below after a dilation of scale factor 2 centered at (- 1, - 2) . What is the equation of the line r? (Note: you will need graph paper to complete this problem!) 6x - y = - 6
Answer:
th equation of the line can be considered a linear function equation
Step-by-step explanation:
hope it helps
2. You went out to eat with 3 friends and your meal cost $82.50. How much was the bill if
6.75% sales tax was included?
How much would you tip the waiter, if you wanted to leave a 20% tip?
Answer:
17.61
Step-by-step explanation:
82.50 x 0.0675 = 5.57
82.50 + 5.57 = 88.07
88.07 x 0.20 = 17 61
hope this helps
1. Add: 85 + (-96)
i need help
Answer: -11
Step-by-step explanation:
Who can give me the answer to this?
Answer:
x = 6
Step-by-step explanation:
9x - 11 + 57 + 80 = 180
9x + 126 = 180
9x = 54
x = 6
PLEASE HELP FAST 20 POINTS! I need A. And B.
Answer:
Diamater is independent because it will always be the constant so it will keep going up by 2
Cost is dependent because it relies on the diamater
Step-by-step explanation:
What is the measure of arc CD?
A. 124
B. 62
C. 64
D. 60
Help plz!
Answer:
Option D
Step-by-step explanation:
By inscribed angle theorem,
" Measure of an inscribed angle by the arc measures half of the measure of the arc"
m(arc BCD) = 2m(∠BED)
And m(arc BCD) = m(arc BC) + m(arc CD)
m(arc BC) + m(arc CD) = 2m(∠BED)
64° + m(arc CD) = 2(62°)
m(arc CD) = 124 - 64
= 60°
Option D is the answer.
The circle graph below shows the results of a survey about the number of TV's in a household. If you surveyed 250 households, how many would you predict to have 3 TV's?
Answer: answer
Step-by-step explanation: joe nuts
A new car is purchased for 25000 dollars. The value of the car depreciates at 8.25% per year. What will the value of the car be, , after 15 years?
Given:
Price of a new car = 25000
Depreciation rate = 8.25% = 0.0825
Time = 15 years.
To find:
The value of the car after 15 years.
Solution:
The exponential decay model is
[tex]y=a(1-r)^t[/tex]
Where, a is the initial value, r is the rate of decay and t is number of years.
Putting a=25000, r=0.0825 and t=15 in the above formula.
[tex]y=25000(1-0.0825)^{15}[/tex]
[tex]y=25000(0.9175)^{15}[/tex]
[tex]y=25000(0.274847)[/tex]
[tex]y=6871.175[/tex]
Therefore, the value of the car after 15 years will be 6871.175.
Here are some bank transactions from a bank account last week. Indicate which transactions represent positive values and which indicate negative values. (Note this request is different than what is in your book. Respond to each.)
Answer:
mmmmmmmmmmmmm bank
Step-by-step explanation:
anyoneknows the answer
Answer:
26 degrees
Step-by-step explanation:
Can someone find the answer key for this
Kayla wanted to choose a statistical question for a project in her math class.
Which of the following is a statistical question?
A. How old are you?
B. How many siblings do you have?
C. What is the favorite sport of the students in your class?
D. What is the address of your school?
Circle a is defined as (x+5)^2 + (y+6)^2 + 16, and circle b is defined as (x+3)^2+(y+2)^2 =9. Which transformation of circle a shows that circle b is similar?
Answer:
We should use the following transformation: [tex](x', y') = (x+2, y + 4)[/tex] (Translation of circle A to the center of the circle B)
Step-by-step explanation:
We should apply a translation prior to determine if both circles are similar. If we translate the circle A to the center of the circle B. The translation needed is the vectorial distance between both centers:
[tex]T(x,y) = B(x,y)-A(x,y)[/tex] (1)
Where:
[tex]T(x,y)[/tex] - Translation vector.
[tex]A(x,y)[/tex] - Location of the center of the circle A.
[tex]B(x,y)[/tex] - Location of the center of the circle B.
If we know that [tex]A(x,y) = (-5,-6)[/tex] and [tex]B(x,y) = (-3,-2)[/tex], then the translation vector is:
[tex]T(x,y) = (-3,-2)-(-5,-6)[/tex]
[tex]T(x,y) = (2,4)[/tex]
We should use the following transformation: [tex](x', y') = (x+2, y + 4)[/tex] (Translation of circle A to the center of the circle B)
Answer:
Step-by-step explanation:D
Find the value of x.
Answer:
x = 13
Step-by-step explanation:
3x + 5 = 44
3x = 39
x = 13
Change one number in the equation below to safely land the plane.
Press "Submit" to see if the plane lands safely.
HELp giving brainlest and more points
Answer:
[tex]\frac{121}{16}[/tex]
Step-by-step explanation:
[tex](-2\frac{3}{4})^2\\= (-\frac{4\times2+3}{4})^2\\=(-\frac{11}{4})^2\\=\frac{121}{16}[/tex]
I really don’t know the answer lol
Answer:
30
Step-by-step explanation:
I am sure
If correct which it is, can you please mark brainliest
Angle three would also be thirty, and the other two angles (2+4) would be 180 (the degrees in a straight line ALWAYS) minus 30, which would be 150. The answer your looking for would be 30 though.
Question 6 (1 point)
Which number is a rational number?
V8
12.51831800562...
03.141592653589...
5. 6464646464...
Answer:
12.....
Step-by-step explanation:
yeah that one
A.ASA postulate
B.SAS postulate
C.SSS postulate
D.AAS theorem
HELP PLESE I REALLY NEED YOUR HELP. AND PLEASE DON’T GIVE ME LINKS!!
Answer:
54 ft
Step-by-step explanation:
1/4=3 ft, if you convert the measurements to feet, it adds up to 54
Answer:
one side is 6 feet, one side is 21 feet
(21 x 2) + (6 x 2) = 54 feet
pls give brainliest
Step-by-step explanation:
Please help me!
[One Step Inequalities]
Answer:
x<6
Step-by-step explanation:
cos B = O.05. what is the approximate measure of angle B
The value of the measure of angle B will be;
⇒ ∠ B = 87.13°
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The value is,
⇒ cos B = 0.05
Now,
Since, The value is,
⇒ cos B = 0.05
Taking cos inverse both side, we get;
⇒ cos⁻¹ cos B = cos⁻¹ 0.05
⇒ B = 87.13°
Thus, The value of angle B = 87.13°
Learn more about the mathematical expression visit:
brainly.com/question/1859113
#SPJ2
rsula's grandfather gave her $20 to spend on new songs and games for her phone. Ursula has already spent $4.50 on new songs. If each game costs $1.75, how many games can Ursula buy without spending more than her grandfather gave her? Use the following inequality to solve the problem.
Graph y ≤ (x + 2)^2.
Click on the graph until the correct graph appears.
Answer:
the first one is the correct one
Step-by-step explanation:
a great way to check this is to use demos .com
Answer:
its the first one
Step-by-step explanation:
our vertex is (-2,0)
so replace it in the equation y ≤ (x + 2)^2
so, 0 ≤ (-2 + 2)^2
= 0 ≤ (-4)^2
= 0 ≤ 16
look at that statement, is 0 less than or equal to 16? Yes. Therefore it is correct, so you shade out side of the parabola.
TIP: If the parabola opens up and:
y <, then shade outside.
y >, then shade inside.
Do the opposite if the parabola opens down.
An ice tray holds 12 ice cubes. If the total volume of the ice in the
tray is 12 in. what is the total surface area of the ice cubes?
Answer:
the cubes are 1 in on all sides
but...
since there's gaps its more likely that there a 1/2 in or 3/4 in
Step-by-step explanation:
12/12=1
Answer:
24 ice sufaces
Step-by-step explanation: