3.
The time taken, t seconds, that it takes a water heater to boil water is inversely
proportional to the power, p watts, of the water heater.
When P= 2000W, T = 252 seconds.
Find the time it takes to boil water when P = 800W?
which of the following is the cofficient in the algbraic expression 5y-z^3
Find the mean, median and mode of the weights of the people shown. Please
.. pls help me....!!!!! Determine whether the point (-2,4) satisfy y<3x+5,y=3x+5 or y >3x+5..
Answer:
[tex]y > 3\cdot x + 5[/tex]
Step-by-step explanation:
Let [tex]A(x,y) = (-2,4)[/tex] and [tex]y = 3\cdot x + 5[/tex]. Now we evaluate the given function at [tex]x = -2[/tex]:
[tex]y = 3\cdot x + 5[/tex] (1)
[tex]y = 3\cdot (-2)+5[/tex]
[tex]y = -6 +5[/tex]
[tex]y = -1[/tex]
Which means that [tex]y[/tex] is less than the y-component of A. Therefore, the right answer is [tex]y > 3\cdot x + 5[/tex].
what is the percent of 65% of 186
Answer:
im pretty sure 120.9
Step-by-step explanation:
Answer:
120.9
Step-by-step explanation:
0.65 times 186 is 120.9
Helppppppppppppppppppp
Answer:
The answer to the question is 23
5. What is the inverse of the following conditional?
(1 point)
Ifn is the sum of two even numbers, then n is even.
OIfnis even, then n is the sum of two even numbers.
OIfn is not even, then n is not the sum of two even numbers
OIf n is not the sum of two even numbers, then n is not even
If n is the sum of two even numbers, then n is not even.
Answer:
A
Step-by-step explanation:
because an even number plus and even number equals and even number
Answer:
(C) If n is not the sum of two even numbers, then, is not even.
Step-by-step explanation:
What is the simplified expression for
Answer:
c. 5/2
Step-by-step explanation:
Can someone please help me with this ASAP ill love you forever
Answer:
Step-by-step explanation:
I can help :D
apparently word won't work so this will I still need to pass tho
Answer:
Have you tried word online?
Step-by-step explanation:
tell me somthing <3 ^^
Answer:
like
Step-by-step explanation:
my favorite food is cheesecake and I'm lactose intolerant♡
what is the the slope of the line through (2, -2) and (9, 3)
Answer:
m = 5/7
Step-by-step explanation:
m = y2-y2/x2-x1
m= 3-(-2)/ 9-2
m= 5/7
Answer:
[tex]m=\frac{5}{7}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Point (2, -2)
Point (9, 3)
Step 2: Find slope m
Substitute [Slope Formula]: [tex]m=\frac{3+2}{9-2}[/tex]Add/Subtract: [tex]m=\frac{5}{7}[/tex]in general, if lim x->a m(x) does not exist and lim x->a n(x) does not exist, is it true that lim x->a [m(x) n(x)] does not exist?
The claim is untrue because, in the case of discrete functions, the absence of either function limit does not imply that the limit product of those two functions will also not exist.
What exactly are limit functions?When a variable approaches its limit from the right, the function's right-hand limit is the value that approaches. When a variable approaches its limit from the left, the function's left-hand limit is the value that approaches. The limit of a function in mathematics is a key idea in calculus and analysis regarding the behavior of that function close to a specific input. Below are formal definitions that were initially developed in the early 19th century. Informally, a function f gives each input x an output f(x). The limit of a constant multiplied by a function is the same as the limit of the function multiplied by the constant. A product's limit is equal to the product of its limits. A quotient's limit is the same as the quotient of its limits. A constant function's limit is the same as the constant.
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Write the following equation from the verbal description given
and then solve the equation.
"Two and three-fourths times the sum of twelve times a
number c and negative seven is equal to thirty-five and three-
fourths."
The equation for the given verbal descrption "two and three-fourths times the sum of twelve times a number c and negative seven is equal to thirty-five and three-fourths." is [tex]2\frac{3}{4}[/tex]( 12c -7) = [tex]35 \frac{3}{4}[/tex] and its solution is c = 5/6.
According to the given question.
We have a verbal description for a equation i.e. "two and three-fourths times the sum of twelve times a number c and negative seven is equal to thirty-five and three-fourths."
So, the equation for the above verbal description is given by
[tex]2\frac{3}{4}[/tex]( 12c -7) = [tex]35 \frac{3}{4}[/tex]
Therefore, the solution for the above equation is given by
11/4(12c - 7) = 143/4
⇒ 11(12c - 7) = 143 (multiply both the sides by 4)
⇒ 132c - 77 = 143
⇒ 132c = 143 + 77
⇒ 132c = 220
⇒ c = 220/132
⇒ c = 110/66
⇒ c = 55/66
⇒ c = 5/6
Hence, the equation for the given verbal descrption "two and three-fourths times the sum of twelve times a number c and negative seven is equal to thirty-five and three-fourths." is [tex]2\frac{3}{4}[/tex]( 12c -7) = [tex]35 \frac{3}{4}[/tex] and its solution is c = 5/6.
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Write a linear function f with the values f(−1)=5 and f(3)=4.
Answer:
1 Expert Answer When they say f(0) = -5 they mean the point (0, -5) is on the line. When they say f(3) = 4 they mean the point (3, 4) is on the line. In y = mx + b form, we would have f(x) = 3x - 5.
Step-by-step explanation:
The function is to be determined from the given points.
The linear function is [tex]f(x)=-\dfrac{1}{4}x+\dfrac{19}{4}[/tex]
The given values are
[tex]f(-1)=5[/tex]
[tex]f(3)=4[/tex]
The ordered pairs are [tex](-1,5),(3,4)[/tex]
The equation of the line is
[tex]y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)\\\Rightarrow y-5=\dfrac{4-5}{3-(-1)}(x-(-1))\\\Rightarrow y-5=-\dfrac{1}{4}(x+1)\\\Rightarrow y-5=-\dfrac{1}{4}x-\dfrac{1}{4}\\\Rightarrow y=-\dfrac{1}{4}x-\dfrac{1}{4}+5\\\Rightarrow y=-\dfrac{1}{4}x+\dfrac{19}{4}[/tex]
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find [t]-1 given that cos sin sin cos and show that [t]21 5[t]t and hence that [t] is an orthogonal matrix.
TT is equal to T-1, so the given matrix is an orthogonal matrix.
What is an orthogonal matrix?
A matrix is said to be orthogonal if its antipode is also its transpose and if its relationship to the inner product is established. A real square matrix with orthonormal vectors in its columns and rows is known as an orthogonal matrix or orthonormal matrix in direct algebra. Where QT is the transpose of Q and I is the identity matrix is one system to put this into words. However, the matrix is said to be orthogonal, If the transpose of a square matrix with real figures or values is equal to the inverse matrix of the matrix. In other words, an identity matrix will always be affected by the product of a square orthogonal matrix and its transpose.Here, the determinant of T,
|T| = cos²∅ + sin²∅
= 1
Now, its cofactors,
[tex]T_{11}[/tex] = cos ∅
[tex]T_{12[/tex] = sin ∅
[tex]T_{21[/tex]= -sin ∅
[tex]T_{22[/tex] = cos ∅
Now, the adjoint matrix of cofactors matrix transpose [tex]T^T[/tex] is equal to [tex]T^{-1.[/tex]
Hence, the given matrix is an orthogonal matrix.
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The meal total was $50. If we leave a 20% tip, then what will the meal cost us total. (Hint: meal total plus tip = overall total: tip = meal x %(in decimal form)
Answer:
Total cost of meal is $60
Step-by-step explanation:
The cost of meal = $50
Tip = 20%
We need to find total cost of meal
First find 20% of 50 to get the amount given for tip
[tex]20\% \:of\: 50\\=\frac{20}{100}\times 50\\=10[/tex]
So, tip given is $10
Total cost of meal = 50+10 = $60
So, total cost of meal is $60
what is the product of 5/12 and 8/15
Answer: 2/9
Step-by-step explanation:
Simplify the expression.
What is the slope of the line that passes through the points (9,-5) and
(1, -1)? Write your answer in simplest form.
Answer: -1/2
Step-by-step explanation:
See attached
describe the error below
plz hurry I make you brainlist
Answer:
Instead of subtracting 5 from both sides you would need to add because the equation is technically saying 5y - 5 = 10.
Which table represents a linear function
Answer: It is the Top right one
Step-by-step explanation: Because number sequence is consistent
It starts with a 7 and you add 2 that is a 9 add two more that is 11 and add 2 it is 13. With the others you cant add the same number for all of them and get a linear function. Hope this helped :3
Mrs. Stoddard has 264 crayons for her art class of 22 students. How many crayons will each student get if the crayons are divided equally? Use a model to help you solve the problem.
Answer:
12
Step-by-step explanation:
264/22
evaluate 9.3s + 8.5t when s=7 and t=8
Answer:
17.95
Step-by-step explanation:
SLOPEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEREEEEEEEEEEEEEEEEEEEEEEEEE
Answer:
Slope=1
Step-by-step explanation:
What is the answer???
This table represents a quadratic function. and The graph of a quadratic function is represented by the table. please help :)
Answer :
D
Step-by-step explanation:
Because when you put it in the calculator it will show if the solution is right. For example,
f(x) = a(x-h)^2 +k
Vertex is (2,-4)
Plug in the vertex and Pick a coordinate to test
I pick (0,-3)
f(x) = a(0-2)^2 -4= -3
Plug in each a to shows that the equation is true . In this case, 0.25 worked!
Test
0.25(0-2)^2-4= -3
-3 = -3
Hope this helped!
Pls make me the Brainliest if the answer is right it would meant a lot. Thanks
Answer:
D. 1/4 and [tex]f(x)=-2(x-8)^{2}+6[/tex]
Step-by-step explanation:
I did the test.
Use the given information to find f(x + 1)
g(x) − f(x) = −2x + 5, g(x) = 5x − 3
Answer:
[tex]\mathbf{ f(x+1)=7x-1}[/tex]
Step-by-step explanation:
We need to find f(x+1)
We are given:
[tex]g(x) - f(x) = -2x + 5\:and\:g(x) = 5x -3[/tex]
First we need to find f(x)
By putting value of g(x) into g(x)-f(x)
[tex]g(x) - f(x) = -2x + 5\\\Put\:value\:of\:g(x) = 5x -3\\5x-3-f(x)=-2x+5\\-f(x)=-2x+5-5x+3\\-f(x)=-2x-5x+5+3\\-f(x)=-7x+8\\f(x)=-(-7x+8)\\f(x)=7x-8\\[/tex]
We have, [tex]f(x)=7x-8[/tex]
Now finding f(x+1) by putting x=x+1
[tex]f(x)=7x-8\\Put\:x=x+1\\f(x+1)=7(x+1)-8\\f(x+1)=7x+7-8\\f(x+1)=7x-1[/tex]
So, [tex]\mathbf{ f(x+1)=7x-1}[/tex]
1# Mr. Sanchez bought 2 magazines for $9.95 each and 1 book for $14.95. If the sales tax is 6%, what is the total cost of Mr. Sanchez’s purchases?
2# The price of gas increases from $2.20 per gallon on Monday to $2.31 per gallon on Tuesday. What is the percent of increase?
3# Dennis estimated the width of the space he has in his kitchen to fit a new refrigerator to be 36 inches. The actual width is 33 inches. What is the approximate percent error?
4# Megan purchased 8 square yards of flooring for a total of $432. What was the price of this flooring per square foot? **BE CAREFUL! You need to convert SQUARE YARDS into SQUARE FEET! If 3 feet = 1 yard, how many square feet are in 1 square yard?
5# A rectangular photograph measuring 2 inches by 4 inches is enlarged by a scale factor of 8. What is the area of the new photograph?
HELP ME WITH THE 5 QUESTIONS!!!!! PLEASE :) QUICK
Answer:
#1: $36.94
#2: 4.9 continuous
#3?
#4 $18
#5 64in squared
Step-by-step explanation:
#1 2x9.95+19.9
$19.90+$14.95=34.85
6% of 34.85=2.09
$34.85+$2.09=
$36.94
#4 8 yards = 24 feet
432/24=
18
#5 4x2=8
8x8=64
remember to make sure it is squared because it is area
Gabby is an aspiring country artist. She has a record contract that pays her a base rate of $200 a month and an additional $12 for each album sold. Last month she earned a total of $644. Identify the y-intercept in the equation.
Answer:
From the formula above, you see that your slope would be the $12.
Step-by-step explanation:
So, from this problem the base rate is the y-intercept because it is fixed. The slope of the is the additional fee because it's changing by the number of albums sold. Below is the equation that should have been created using the slope intercept formula.
220 + 12x = 644
You will need the slope intercept form, y = mx + b
m is the slope
b is the y-intercept
Get it?whats 1 +4? i honestly have no idea-
Answer:
its 5 dude...............