What is the area of the circle shown? Use 3.14 for pi.
Help me please I need to pass this test
Answers
A=3.14 x 10^2
A=3.14x100
A=314
314cm is your answer
Related Questions
Anne Kates house is 20c. She had just made a fresh cup of tea (100c). Five minutes after she made her mad scientist nephew came in,stuck a thermometer in the cup and announced that the tea was now only 70c Write the possible equation with asymptotes
Answers
Answer:
The possible equation is; T(t) = 20 + 80·[tex]e^{(-0.094 \cdot t)}[/tex]
The horizontal asymptotes is Lim(t → ∞), T → 20°C
The vertical asymptote is Lim(t → 0) T → 100°C
Step-by-step explanation:
The given parameters are;
The temperature of the house = 20°C
The initial temperature of the tea = 100°C
The temperature of the tea after 5 minutes = 70°C
From Newton's law of cooling, is given as follows;
[tex]T(t) = T_s + (T_0 - T_s) \cdot e^{k \cdot t}[/tex]
[tex]\dfrac{dT}{dt} = -k(T - T_a)[/tex]
Where;
T(t) = The temperature after time, t =
[tex]T_s[/tex] =The room temperature = 20°C
T₀ = The initial temperature of the tea = 100°C
k = Constant
T(5) = 70°C, therefore, we have;
[tex]70 = 20 + (100 - 20) \cdot e^{k \cdot 5}[/tex]
50/80 = [tex]e^{k \cdot 5}[/tex]
5·k = ㏑(5/8)
k = ㏑(5/8)/5 ≈ -0.094
Therefore, the possible equation is given as follows;
T(t) = 20 + 80·[tex]e^{(-0.094 \cdot t)}[/tex]
The asymptotes are Lim(t → ∞), T → 20°C and Lim(t → 0) T → 100°C
What is the vertex of the function (X) = -x + 71 - 4?
O A. (-7,-4)
B.
(7,4)
O C. (-7,4)
OD. (7,-4)
Answers
Answer:
C
Step-by-step explanation:
Hope this Helps.
The coordinate of the vertex is ( 7 ,4), the correct option is B.
What is an Absolute value function?An absolute value function is a function that gives positive value for a number or variable. It has a V shaped graph, it is also called as a modulus function.
The absolute function is y = | -x +7| +-4
The v shaped curve has a vertex and it can be determined by following method.
The value of the x coordinate is determined by equating the modulus to 0, the point at which the modulus is zero.
-x +7 = 0
Adding -7 to both sides.
-x = -7
x = 7
The value of y at this point is the y coordinate of the vertex.
y = 0 +4
y = 4
(x,y) = ( 7,4)
To know more about Absolute value function
https://brainly.com/question/10664936
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A company charges a flat fee of 1500 dollars to rent a yacht in addition renters must pay 100 dollars per hour
Answers
Answer:
[tex]y= 1500+100x[/tex]
Step-by-step explanation:
Given data
Flat fee= $1500
additional fee= $100 per hour
let the number of hours be x
Hence the total charges for x hours y is given as
[tex]y= 1500+100x[/tex]
(3/4)^-1 (4/3)^-2 exponent solving
Answers
Answer:
7/12
Step-by-step explanation:
3/4 - 4/3 = 7/12 or 0.583
HELP WILL MARK BRAINLIEST IF GOTTEN RIGHT!!! GET IT WRIBNG ON PURPOSE I REPORT YOU!
Answers
Answer:
A
Step-by-step explanation:
Can anyone help my little sister with her math I tried helping her but I couldn’t figure out how to do the math!!
Answers
Answer:
1: the wooden part is 3.725 kilograms.
2: 10 Children
Answer:
1 3.725 kg of wood
2 10
Step-by-step explanation:
For question 1 you multiply the total weight by 3/4 to find the weight of the metal, you then subtract this from the total to find the weight of the wood
For question 2 you look at it as a fraction 1/3 kids + 2/3 adults equal 30, since there are twice as many adults. Then you multiply 30 by 1/3 and get 10
Which value of x from the set { 8 , 11 , 61 , 67 } makes the equation ( x − 3 )² = 64 true?
8
11
61
or 67
Answers
Answer:
I
Step-by-step explanation:
this its 61 ok thanks you
Estimate the sum of 872 and 121 by rounding both values to the nearest hundred. What is the best estimate of the sum?
Answers
Answer:
872
Step-by-step explanation:
Joe made a frozen yogurt shake with 10 ounces of milk and some strawberry frozen yogurt. He used the mixture to fill three 5-ounce glasses and had 2 ounces left over. How much-frozen yogurt did he use?
Answers
Answer:
2x - 9y = 23
5x - 3y = -1
Step-by-step explanation:
Alyssa had 191 dollars to spend on 6 books. after buying them she had 17 dollars. how much did each book cost?
Answers
So you subtract 191 from 17 which will get you 174 and you divide that by 6 and you get 29
To check you can multiply 29 by 6 and you’ll get 174
Calculate the sum of the first n terms of the arithmetic progression (an)
a) a, = -4; d = 2; n = 16
please help me
Answers
Answer:
n²-5n
Step-by-step explanation:
The sum of the nth term is expressed as;
Sn =n/2[2a+(n-1)d]
Given
a, = -4; d = 2; n = 16
Sn = n/2[2(-4)+(n-1)2]
Sn =n/2[-8+2n-2]
Sn = n/2[2n-10]
Hence the sum of the nth term is 2n²-10n/2
2n(n-5)/2
= n(n-5)
= n²-5n
The sum of the nth term is n²-5n
What is
h(x) = 1/(x-5)3
Answers
Answer:
lim_( 3\/(-5 + x) = 0
Step-by-step explanation:
h(x) = 1\/(x - 5)×3
{x element R : x!=5}
{h element R : h!=0}
d\/dx(3\/(x - 5)) = -3\/(x - 5)^2
integral 3\/(x - 5) dx = 3 log(x - 5) +
Lauren got 321$ for her birthday. She wants to put 20% in her savings account. How much will she have left over to buy new clothes?
Answers
Answer:
$256.80
Step-by-step explanation
Change the 20% to a decimal, .20, the multiply it by the total amount of $$$, 321, and you get $64.20. Subtract that by the total amount to get the amount left over for her to get new clothes.
Hope it helps!! :))))
find the slope given the following points (8,-6) (-9,-12)
Answers
Please Hurry!!
simplify the expressions
1. 2x + 1 + 3x + 7
2. 5x + 2(3x + 5)
(two different questions)
Answers
Answer:
1. 5x + 8
2. 11x + 10
Step-by-step explanation:
1. 2x + 1 + 3x + 7
Combine like terms:
2x + 3x + 1 + 7
Add coefficients
5x + 8
2. 5x + 2(3x + 5)
Distribute the 2 by multiplying by each term inside the parentheses:
5x + 6x + 10
Combine like terms by adding coefficients
11x + 10
2. 11x + 10
Hope that helped!!
The area of a square floor on a scale drawing is 81 square centimeters, and the scale drawing is 1 centimeter:2 ft. What is the area of the actual floor? What is the ratio of the area in the drawing to the actual area?
Answers
so the original area is
A = 81 sq cm ( 2 ft / 1 cm)^2a = 324 sq ft
so the ratio of the ratio the area in the drawing to the actual area is:
r = 81 sq cm / 324 sq ftr = 1 sq cm / 4 sq ft1 sq cm : 4 sq ft
Answer:
4 sq ft is the answer to your question
I’m trying to figure out #’s 31 and 32. I don’t need the answers I just need guidance on how to figure them out.
Answers
Answer:
open circle means less than OR greater to
closed circle means less than or equal to OR greater than or equal to
what is the [?]
which one answers this equation. please help
24 [?] 3/4= -32
answer choices:
x (times)
+ (plus)
- (minus)
/ (divided by)
Answers
Answer the photo below thanks
Answers
17 x 3.4 = 53.38
53.38 Rounded Down Is 53
what is the distance between points A(3,-5) and B(-8,2) on the coordinate plane?
Answers
Answer:
use distance formula
Step-by-step explanation:
Please help
I will give 40 points ☺️
Answers
Answer:
Its 62
Step-by-step explanation:
B Mrs. Sayers made a rectangular fence
around the school vegetable garden so it
would not get destroyed by students. She
constructed a fence that was 4 feet long, 2 feet
wide, and 3 feet high. How much material did
she use to build her fence?
Answers
Answer:
Mrs. Sayers utilized 24 sq. ft material to build her fence
Step-by-step explanation:
length x width x height = volume
4 x 2 x 3 = 8 x 3 = 24
If x(x + y) = 3 and y(x + y) = 10, which of the following is a possible value of x + y?
(A) radical 7
(B) radical 13
(C) 6.5
(D) 7
(E) 13
With steps and explanation please.
Answers
Answer:
I believe that the answer is D: 7
4(w + 1) = -6; w =
help asap
Answers
Answer:
w = -10/4 or -2.5
Step-by-step explanation:
4(w + 1) = -6
4w + 4 = -6
4w = -10
w = -10/4 or -2.5
Answer:
W = 1/2 or 0.5
Step-by-step explanation:
Distribute
4w + 4 = 6
-4. -4
4w/4 = 2/4
W = 1/2
please helpp!!
The exponential function f(x) has a horizontal asymptote at y = 3.
What is the end behavior of f(x)?
A.
As x decreases, f(x) approaches, but never reaches, 3. As x increases, f(x) increases.
B.
As x decreases, f(x) decreases. As x increases, f(x) approaches, but never reaches, 3.
C.
As x decreases, f(x) approaches, but never reaches, 3. As x increases, f(x) decreases.
D.
As x decreases, f(x) approaches, but never reaches, 0. As x increases, f(x) increases.
Answers
Answer: A
Step-by-step explanation:
a
Step-by-step explanation:
Please help!! ill give 20pts
1) y=x2+24x+43
find the vertex form by completing the square SHOW ALL WORK!!!
2) Given the function f(x)=−x2+8x+9, state whether the vertex represents a minimum or maximum point for the function. Explain your answer.
Answers
Answer:
1. Vertex is (-12, -101)
2. Vertex is (4, 25)
Step-by-step explanation:
1)
[tex]y = x^{2} + 24x + 144 + 43 - 144\\ = (x + 12)^{2} - 101[/tex]
Vertex is (-12, -101)
2)
[tex]y = -x^{2} + 8x + 9\\ = -(x^{2} - 8x + 16) +9 + 16\\ = -(x - 4)^{2} + 25[/tex]
Vertex is (4, 25)
Which expression is equivalent to 8(2x + 4)?
A. 16x + 32
B. 2x + 32
C. 16x + 4
D. 10x + 12
Answers
If you distribute 8 to 2x and 4, you’ll get 16x+32.
Find another point in the pattern that passes through the points (0, 4) and (2, 12)
Answers
Answer:
3
Step-by-step explanation:
In which step did Carson make his first mistake?
1 - 4x = 2/3 (-2 + x)
Step 1: 1 - 4x = - 4/3 + x
Step 2: 1 = -4/3 + 5x
Step 3: 7/3 = 5x
Step 4: 7/15 = x
Answers
Answer: the first because he didn’t distribute the 2/3 with all the things in the parentheses
Step-by-step explanation: it’s supposed to be -4/3 + 2/3x the first step
need help from An Expert i really need your help help with the whole thing
Answers
Answer:
free points
Step-by-step explanation:
Answer:
etm
Step-by-step explanation:
yc