Answer:
12 minutes
Step-by-step explanation:
First substitute 141°F for T in the given equation.
Then isolate the exponential term.
Now rewrite the equation as a natural log, and solve for x.
After 12 minutes will the temperature of the coffee be approximately 141°F.
What is temperature?Temperature is the degree of hotness or coldness expressed in terms of any of numerous scales, such as Fahrenheit and Celsius. Temperature suggests the route wherein heat strength will spontaneously flow—i.e., from a warmer body (one at a better temperature) to a less warm frame (one at a lower temperature).
diploma measures of temperature are typically expressed with the ° temperature scale: The sample became heated to 80 °C.
Substitute the 141°F in the equation
⇒T = 75 + 120e-0.051
⇒ 141 = 75 + 120x - 0.051
⇒ 120x = 141 -75 + 0.051
⇒120x = 66.051
Learn more about temperature here:-https://brainly.com/question/24746268
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Please help !!
Select the correct answer.
Factor the expression.
(49x^2 - 16) | (Choices in the picture.)
Answer:
B.
Step-by-step explanaBtion:
The answer would be B
(7x+4)(7x-4)
you can tell because when you expand it e.g.
49x^2 +28x - 28x -16
simplify
49x^2 - 16
equals the expression
Answer:
The answer would be B: (7x+4)(7x-4)
What does 4.57x0.08
Answer:
0.3656 :)
Step-by-step explanation:
Answer:
0.3656
Step-by-step explanation:
You do 4.57 X 0.08 and get 0.3656
CAN ANYONE HELP ME WITH THIS
Answer:
Considers each unit is equal to one my answers are bellow.
Step-by-step explanation:
D: -4,3
E: 2, 0
F: -2 ,-7
G: -6 , -5
Correct me if I'm wrong
The first one is done and the options for number four are:
w(2w+12)=160
2w^2+12w-260=0
2w^2+12w=260
w^2+6w-130=0
Answer:
Step-by-step explanation:
Part A
w² + 6w + c = 130 + c
w² + 2(3w) + c = 130 + c
To make left side of the equation a perfect square we will replace c by (3)².
w² + 2(3w) + 3² = 130 + c
[By formula → a² + 2ab + b² = (a + b)²]
w² + 2(3w) + 9 = 130 + 9
Therefore, c = 9 will be the answer.
Part B
From part A,
(w + 3)² = 139
Option (2) and Option (6) are the correct options.
Part C
w + 3 = √139
w = 11.79 - 3
w = 8.79
w ≈ 8.8 inches
3 to the power of 15 is how many times larger than 3 to the power of 12
Answer:
27
Step-by-step explanation:
[tex] \dfrac{3^{15}}{3^{12}} = 3^{15-12} = 3^3 = 27 [/tex]
Answer: It is 27 times larger.
Answer:
3 to the 15 power is 14,348,907. 3 to the 12 power is 531,441 and 531,441 x 27 is 14348907 the same as 3 to the 15 power.
Step-by-step explanation: soooooo just control C control V the answer.
if x+3/3=y+2/2 then x/3 =
Answer:
x/3=y/2
Step-by-step explanation:
Multiply both sides of the equation by the Common Denominator 6
2x + 6 = 3y + 6
2x = 3 y
x/3 = y/2
The point slope form of the equaton of the line that passes through (-9, -2) and (1, 3) is y-3=1/2(x-1). What is the slope-intercept form of the equation for this line?
Answer: y=1/2x+5/2
Step-by-step explanation:
y-3=1/2 (x-1)
y-3(-3)=1/2x-1/2(+3)
y=1/2x-1/2+6/2
y=1/2x+5/2
hope this helped!!
PLEASE HELP ME ANSWER THIS PLEASE PLEASE PLEASE
Answer:
see explanation
Step-by-step explanation:
(a)
The turning point is the vertex of the graph
The coordinates are (2, - 4 )
(b)
The zeros are the values of x where the graph crosses the x- axis
The graph crosses the x- axis at
x = - 1, x = 5 ← zeros
(- 1, 0 ), (5, 0 ) in coordinate form
In the triangle below, what is the cosine of 60°?
PLEASR HELP THIS IS THE LAST QUESTION AND ITS DUR IN 4 MINUTES
Answer:
3x(3x-5)
Step-by-step explanation:
I can do this in my head but I hope it is right but if not I'm sorry
Answer:
- 3x ( x² - 4x + 5 )
Step-by-step explanation:
- 3x ( x² - 4x + 5 )
In the orthonormal system (O; i⃗,j⃗) below, consider point A(3, −1), vector v⃗(2,1), and
straight line (d).
Let (d’) be the line of equation y = −2x + 5.
1. Show that A belongs to (d’).
2. Draw the straight line (d’).
3. Write a Cartesian equation of line (d).
4. What is the relative position of the lines (d)
and (d’)? Justify your answer.
5. Write the reduced equation of the straight
line(D) defined by (A, ⃗v⃗).
6. Deduce that the two lines (D) and (d) are
perpendicular.
7. Determine the coordinates of the point of
intersection I of the two lines (d) and (D).
Answer:
Step-by-step explanation:
What is Your Budget?
Task 2
Directions:
You are offered a job with a starting annual salary of $50,000 and two options for
determining your annual raise:
Option 1: An annual raise of $3,000 per year.
Option 2: A 5% raise each year.
what does m equal please help me i give brainliest plss.
Answer: m[tex]>=[/tex] 1/2
Step-by-step explanation:
what is 2/7 into a percent
2/7 into percentage would be 28.571429%
Note to you:
I hope this helped and have a good one!! Correct me if I am wrong. Did some outside research.
HELP ME PLZZZZZZZZZZZZZZZZZ
Answer:
254.3
Step-by-step explanation:
The formula for the area of a circle is A = pi(r^2).
Shown in the picture is the diameter of the circle. To find the radius, or R, simply divide 18 by 2. The definition for a radius is basically half of the diameter.
Now...
3.14(9^2) = 254.34
Round to the nearest tenth: 254.3
The graph below shows the #tal distance, in miles, traveled by a towboat over time,
in hours.
AVERAGE SPEED
OF TOWBOAT
21.00
Total Distance (miles)
15.75
10.50
5.25
0 1 2 3 4
Time (hours)
Which statement best describes the meaning of the coordinates of point Fon
the graph?
It shows the unit rate of the graph in hours per mile
Answer:
it shows the unit rate of the graph in miles per hour.
Step-by-step explanation:
Answer:
It shows the unit rate of the graph in miles per hour
Step-by-step explanation:
...
I need help on this question
Answer:
11
Step-by-step explanation:
h(-4)= -13
h(-2)=8
-13+3(8)=11
write the equation of the line in fully simplified slope-intercept form??
Answer:
y=-2/3x+3
Step-by-step explanation:
(m)slope :rise over run
(b)y-intercept :where the line crosses the y axis
slope intercept for y=mx+b
Please help me!! Thanks
Answer:
A
Step-by-step explanation:
B
Find the measure of 21.
21
42°
86
GEOMETRY. Is this correct? Why or why not
Answer:
No x doesn't equal 30 because 4(30)+8+68=196 instead of 180. It should be x=26
Step-by-step explanation:
Hope this Helped
Which graph can be used to find the solution to the system of equations below?
2x + y = -4
-3y = 2x + 12
Answer:
x = 0, y = -4
Now plug it in:
y = mx + b
-4 = b
So the y intercept is -4
You can also graph the equation.
Theo budgets $154 for karate classes. He buys a karate uniform, called a dogi, for $12. If it costs $8 to attend each karate class, which inequality below represents the number of classes, c, that Theo can take?
Answer- 1234
Step-by-step explanation:
sorry
Answer:
An inequality that represents the number of classes. C, that Theo can take is: 8c+12<=154.
Step-by-step explanation:
If pears cost $0.65, how many pears could you buy if you have $5.20 to spend? Write the equation you would use to answer the question. also, how was you alls day?
Answer:
0.65x = 5.20, 8 pears
Step-by-step explanation:
We put x beside 0.65 because that is the unknown number of pears we can buy with $5.20. To find out how many pears you could buy, we just solve for x. So let's do it!
0.65x = 5.20
x = 8
8 pears
Hope that helps, let me know if you need more help or have questions! :)
Andre says that 5 + 2 and 2 + 5 are equivalent.
Do you agree with Andre? Explain your reasoning.
Answer:
I agree because both equations have the same solution.
Answer:
yes
Step-by-step explanation:
because 5 + 2 is 7 2+5 is also 7
add or subtract to simplify IHML
Answer:
A) 6x^2 + 8x
Step-by-step explanation:
2x^2 + 4x^2 = 6x^2
7x + x = 8x
6x^2 + 8x
Hope this helped! Have a nice day! Plz mark as brainliest!!! :D
-XxDeathshotxX
4b+5=1+5b
Anyone know it ??
Answer:
b = 4
Step-by-step explanation:
4b+5=1+5b
1️⃣Rearrange terms
4b+5=1+5b
4b+5=5b+1
2️⃣Subtract 5 from both sides of the equation
4b+5=5b+1
4b+5-5=5b+1-5
3️⃣Simplify
4b=5b-4
4️⃣Subtract 5b from both sides of the equation
4b=5b-4
4b-5b=5b-4-5b
5️⃣Simplify
-b=-4
6️⃣Divide both sides of the equation by the same term
-b=-4 subtract -1
7️⃣Simplify
b=4
Answer: b=4
Done ✔
If Alfie tosses the paper cup more times, what is the expected number of times that the cup will land on its side?
Question:
Alfie tossed a paper cup in the air 150 times and recorded the side it landed on.
Right side up = 60 Upside down = 53 Side = 37
If Alfie tosses the paper cup 100 more times what is the expected number of times the cup will land on its side?
Answer:
The expected number of times the cup will land on its side is 25 times
Step-by-step explanation:
Given
[tex]Right = 60[/tex]
[tex]Upside\ down = 53[/tex]
[tex]Side = 37[/tex]
Required
First, we calculate the probability of landing on side
[tex]P(Side) = \frac{n(Side)}{Total}[/tex]
[tex]P(Side) = \frac{37}{150}[/tex]
[tex]P(Side) = 0.247[/tex]
Next, we calculate the expected value; E(x) using:
[tex]E(x) = n * P(x)[/tex]
When tossed 100 more times:
n = 100 and P(x) = P(Side) = 0.247
So:
[tex]E(x) = 100 * 0.247[/tex]
[tex]E(x) = 24.7[/tex]
[tex]E(x) = 25[/tex] --- approximated
Hence, it is expected that it will land on its side 25 times
Please help im desperate :)
Answer:
-2
Step-by-step explanation:
You can see that the line is passing through the negative point, which is -2.
I hope this helped!
~natasha
Please can someone solve thiss !!! T~T
I have no idea what its saying and Im AlMosT doNE :(
Please help , it would mean so much
Answer:
y=2x
Step-by-step explanation:
Answer:
y=2x
is the answer answer