Answer:
the answer is D
Step-by-step explanation:
makes sense...
A
3
The ratings of a popular TV show are increasing. The number of
viewers can be modeled by the function, N (2) = 1.73(1.15)",
where x is the number of weeks after the first week of June and N(x) is
the number of viewers in terms of millions. Rounded to the nearest
hundredth, how many viewers are there when x = 5?
Answer:
I need. help to
Step-by-step explanation:
i dont now i need help to
A sample of a radioactive isotope had an initial mass of 540 mg in
the year 2009 and decays exponentially over time. A measurement
in the year 2011 found that the sample's mass had decayed to 300
mg. What would be the expected mass of the sample in the year
2021, to the nearest whole number?
Answer:
16 mg
Step-by-step explanation:
[tex]N_0[/tex] = Initial mass of sample = 540 mg
t = Time taken = 2 years
[tex]t_{1/2}[/tex] = Half life of isotope
N = Final mass of sample = 300 mg
Radioactive decay is given by
[tex]N=N_0e^{-\dfrac{\ln 2}{t_{1/2}}t}\\\Rightarrow \ln\dfrac{N}{N_0}=-\dfrac{\ln 2}{t_{1/2}}t\\\Rightarrow t_{1/2}=-\dfrac{\ln2}{\ln\dfrac{N}{N_0}}t\\\Rightarrow t_{1/2}=-\dfrac{\ln2}{\ln\dfrac{300}{540}}2\\\Rightarrow t_{1/2}=2.358\ \text{years}[/tex]
In 2021 the number of years passed from 2009 would be 12 years
[tex]N=N_0e^{-\dfrac{\ln 2}{t_{1/2}}t}\\\Rightarrow N=540e^{-\dfrac{\ln 2}{2.358}12}\\\Rightarrow N=15.86\approx 16\ \text{mg}[/tex]
The expected mass of the sample in the year 2021 would be 16 mg.
plz i need help i don't understand it
Answer:
y=5,2 and -3
we have to put the values of X and then solve the equation.
Have a good daylast question please get it right
Which shape has two sets of parallel sides only?
rhombus
rectangle
parallelogram
quadrilateral
Answer:
Rectangle
Step-by-step explanation:
1 up and down and one side to side that makes two. Hope this helps!! Good Luck!!! :) :) :) :)
HELP URGENT DUE IN 5 MINUTES URGENT PLEASE
what is this 59 divided 535
Answer:
9.07 [Rounded]
Step-by-step explanation:
535 divided by 59 is 9.07, which I rounded.
The value of the division 535 ÷ 59 is 9 with a remainder of 4 and the decimal form can be expressed as 9.067.
To find the value of division 535 ÷ 59, we can perform a long division.
To perform the calculation, we can use long division:
59 ) 535 ( 9
- 531
______
4
Divide the first digit of the dividend (5) by the divisor (59). Since 5 is less than 59, we bring down the next digit, making it 53.
Divide 53 by 59. The result is 0, as 53 is less than 59.
Bring down the next digit, making it 535.
Divide 535 by 59. The result is 9, as 59 can go into 535 nine times.
Multiply 9 by 59, which equals 531.
Subtract 531 from 535, which gives us a remainder of 4.
Therefore, the value of the division 535 ÷ 59 is 9 with a remainder of 4.
In decimal form, the division can be expressed as 9.067, indicating that 59 goes into 535 nine times with a remainder of 4.
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Find the value of the following division:
535÷59
1.
Brady rented a car for two days at $25 a day plus
$0.15 per mile. If his total bill came to $102.50, how
many miles did Brady drive?
Answer:
He drove 350 miles.
Step-by-step explanation:
I need points.
Brady drove 16.67 miles extra.
What is division?One type of operation in mathematics is division. We divide the expressions or numbers into the same number of components during this operation.
Given, Brady rented a car for two days at $25 a day plus $0.15 per mile.
His total bill is $102.50.
We divide the 102.50 by 25.
That means, 102.50 / 25
= 4 is quotient and 2.50 is remainder.
Now we divide 2.50 by 0.15
That means, 2.50 / 0.15
= 16.67 miles
Therefore, 16.67 miles, Brady drove.
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Write down the coordinates of the letters A, B, C, D, E, F, G, H from the below graph..
plss my exam is tomorrow
will mark you the brainlliast
Answer:
A = (2,1)
B = (4,2)
C = (5,3)
D = (6,6)
E = (4,6)
F = (3,4)
G = (1,6)
H = (6,0)
I = ( 0, 4)
Step-by-step explanation:
tips:
the format for coordinates is (x,y)
the horizontal line is the x axis, so you plot which number of x it lands on, like how A is on the second mark on the x axis.
The vertical line is the y axis, so you plot which number of y it lands onn like how A is on the first mark
At a bakery, each pecan braid has 30 more milligrams
of sodium than each chocolate pastry. If 3 pecan
braids and 4 chocolate pastries have a total of 1840
milligrams of sodium, how many milligrams of
sodium does a pecan braid have?
Answer:
1840 minus 90
1750 divided by 7
Each chocolate pastry has 250 milligrams of sodium
Each pecan braid has 280 milligrams of sodium.
What are Arithmetic operations?Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions.
The operator that performs the arithmetic operation is called the arithmetic operator.
Operators which let do a basic mathematical calculation
+ Addition operation: Adds values on either side of the operator.
For example 12 + 2 = 14
- Subtraction operation: Subtracts the right-hand operand from the left-hand operand.
for example 12 -2 = 10
* Multiplication operation: Multiplies values on either side of the operator
For example 12*2 = 24
/ Division operation: Divides left-hand operand by right-hand operand
For example 12/2 = 6
Given that each pecan braid has 30 more milligrams of sodium than each chocolate pastry
If 3 pecan braids and 4 chocolate pastries have a total of 1840 milligrams of sodium.
So, the number of milligrams of sodium present in chocolate pastry as
⇒ 1840 - 90
⇒ 1750
1750 milligrams of sodium are present in chocolate pastry.
Now, the number of milligrams of sodium present in chocolate pastry as
⇒ 1750/7
1750 divided by 7
Each chocolate pastry has 250 milligrams of sodium.
So, each pecan braid has 280 milligrams of sodium.
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Solve tree he system of equations by the substitution method.
12x + 3y =8
-4x = y + 8
Answer:
8x + 2y
Step-by-step explanation:
12x + 3y = 8 you need to transfer the no. 8 to left since it's positive, it will be negative once you tranfer that and the result is this 8x + 3y -8 =0. Then do it again on the second given, -4x = y + 8.
Tranfer the y variable to left, y is positive then it will be a negative. No need to transfer the no. 8. Then the result would be -4x - y + 8=0
To this solve this, wrote it like this:
12x + 3y –8
-4x - y + 8
——————
8x + 2y
Solve h + 8 = -8
H= ?
h+8= -8
h=-8-8
h=(-16)
Hope it helps. Please mark brainliest.
7x + 49y + 21
need the answer
Answer:
factor: 7(x+7y+3)
simplifies: There are no like terms.
Step-by-step explanation:
From her yearly salary of $193,837, Alina spent a total of $102,938 on rent, bills, and personal items. About how much did she save?
Note: The values of salary and the total expense must be rounded off to the nearest thousand before estimation.
Answer:
92,000i think this is the answer
A forest covers 73,000 acres. A survey finds that 0.2% of the forest is old-growth trees. How many
acres of old-growth trees are there?
There are acres of old-growth trees.
Type an integer or a decimal)
Answer:
143 acres.
Step-by-step explanation:
To find how many acres of old-growth trees there are, we need to find what 0.2% of 73,000 is.
To find a percent of a number, multiply the percent by the number.
0.2% is equal to 0.002.
73,000 x 0.002 = 143
So, 143 acres of the forest is old-growth trees.
I would appreciate brainliest, if not that's ok!
PLEASE HELP ILL GIVE YOU BRAINLIIEST
The common ratio of a geometric sequence is 3 and the 8th term is 4,374. What is the 4th term in this sequence?
Answer:
the first term is a1
the 8th term is a8
the 4th term is a4
we have:
[tex]a8=a1.3^{7}\\\\<=>4374=a1.3^{7}\\\\<=>a1=2[/tex]
with a1 = 0,002 => a4 = a1.3³ = 2.27 =54
Step-by-step explanation:
The 4th term of the given geometric sequence is 54.
What is geometrical progression series?A geometric progression is a sequence in which any element after the first is obtained by multiplying the previous element by a constant which is called a common ratio denoted by r.
For example, the sequence 1, 4, 16, 64,… is a geometric sequence with a common ratio of r = 4.
The nth term of a GP is given as a[tex]r^{n-1}[/tex]
As per the given,
Common ratio r = 3
8th term = 4374
a(3)⁸⁻¹ = 4374
a = 2
The 4th term will be as, 2 x (3)⁴⁻¹ = 54
Hence "The 4th term of the given geometric sequence is 54".
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16. If x and y are positive integers such that the greatest
common factor of xy2 and xy” is 50, then which of
the following could equal y ?
F. 50
G. 25
H. 10
J. 5
K. 2
30 POINTS!!! I WILL MARK YOU AS BRAINLIEST!!!!
Parallelogram PQRS is shown on the coordinate grid. Parallelogram PQRS is dilated with the origin as the center of a dilation using the rule (x, y) → (1.5x, 1.5y) to create parallelogram P'Q'R'S'.
Which statement is true?
A) Parallelogram P'Q'R'S' is larger than parallelogram PQRS, because the scale factor is greater than 1.
B) Parallelogram P'Q'R'S' is smaller than parallelogram PQRS, because the scale factor is less than 1.
C) Parallelogram P'Q'R'S' is smaller than parallelogram PQRS because the scale factor is greater than 1.
D) Parallelogram P'Q'R'S' is larger than parallelogram PQRS, because the scale factor is less than 1.
Answer:
C) Parallelogram P'Q'R'S' is smaller than parallelogram PQRS because the scale factor is greater than 1.
Step-by-step explanation:
1.5x, 1.5y is greater than 1 for the value of x.y
Write the measure in descending order 0.5m - 480mm - 55cm
Answer:
480mm<55cm<0.5m
Step-by-step explanation:
millimeters means 100
centimeters means 10
meters means 1
there are 10mm in every 1cm and 100cm in every 1m
Answer:
55cm>0.5m>480mm
Step-by-step explanation:
as we know
1000mm=1m
100cm=1m
So we see
55=55cm
0.50=50cm
480=48cm
Hope it helps you thanks
Please mark as The Brainlist
Thank you
Please help with this look below! : )
Answer:
$0.40
Step-by-step explanation:
5.60/14 = .40
Solve the linear system of equations
3x+2y=7
-3x+4y=5
X=
Y=
Graph the image of the figure using the transformation given. (across y=-x)
simple easy multiple choice question
Answer:
The answer is B because if you take the line of y=-x (which you can look up on desmos if you don't know what y=-x looks like) and reflect over that line you can see that when the dot reflects over the line y=-x it goes to points (0,2)
Step-by-step explanation:
Gabrielle's age is three times Mikhail's age. The sum of their ages is 68 . What is Mikhail's age?
Answer:
17
Step-by-step explanation:
3x + x=68
68: 4= 17
Mikhail is 17
The points represented by the (x, y) coordinate pairs all lie on line "k". These are the points: (1,3), (2, 1), (3,-1). (4.-3), and (5,-5). What is the slope of line k? A.2 B.5 C.-3 D.-2
Answer:a
Step-by-step explanation:
Bsnanna
If the points (1,3), (2, 1), (3,-1). (4.-3) lie on line k, then the slope of line k is -2
Option D is the correct choice
The points that lie on the line k are:
(1,3), (2, 1), (3,-1). (4.-3), and (5,-5).
We can find the slope of the line k by picking any two points on the line
The slope m of a line passing through the points (x₁, y₁) and (x₂, y₂) is given by the formula:
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
On the line k, let us select the points (1,3) and (2, 1)
x₁ = 1, y₁ = 3, x₂ = 2, y₂ = 1
[tex]m = \frac{1-3}{2-1} \\\\m= \frac{-2}{1}\\\\m= -2[/tex]
Therefore, the slope of the line k is -2
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x-7=13
one step equation
Answer:
x=20
Step-by-step explanation:
Answer:
x=20
Step-by-step explanation:
Add 7 to both sides, x = 13+7 = 20
Given f(x) = x4 – 3x3 + x – 3.
Step-by-step explanation:
hope this will help you.....
Given [tex]f(x) = x^4 - 3x^3 + x -3[/tex]. The Limit of f (x) as x approaches negative 2 is 35.
What is a system of equations?A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.
It is Given that
[tex]f(x) = x^4 - 3x^3 + x -3[/tex].
The Limit of f (x) as x approaches negative 2
[tex]f(x) = x^4 - 3x^3 + x -3\\ f(-2) = (-2)^4-3(-2)^3+(-2)-3\\= 16+24-2-3\\= 35[/tex].
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*WILL MARK BRAINLIEST*
simplify the irrational number square root of 45, then estimate it to two decimal places.
Answer:
3[tex]\sqrt{5}[/tex] which is approx 6.71
Step-by-step explanation:
[tex]\sqrt{45}[/tex] = [tex]\sqrt{9}[/tex]·[tex]\sqrt{5}[/tex] = 3[tex]\sqrt{5}[/tex]
alguien me ayuda??
lo necesito hoy :ccccc ☕
Answer:
no se entiende la imagen
Answer:
La A
Step-by-step explanation:
Mentira no se ve nada solo escoge la D de Dios
Candace makes a sugar-water mixture for hummingbirds. She knows the amount of sugar used in the mixture is proportional to the amount of water used.
Which of the following could represent the relationship between the amount of sugar and water Candace should use in the mixture?
Answer:
the first image (the image with the upward sloping line)
Step-by-step explanation:
If the amount of sugar used in the mixture is proportional to the amount of water used, as more water is used, the more sugar is used. So, as more water is used, more sugar is used.
If the amount of water used is constant regardless of the amount of sugar, the appropriate graph would be the second graph. the graph with the straight line
8. In the first two basketball games, Lee scored a total of
40 points. If he scored 21 points in the second game,
how many points did he score in the first game?
Answer:
19
Step-by-step explanation:
40-21+19
what is 6/7 divided by 4/7 as an improper fraction
Answer:
3/2
1.5
1 1/2
Step-by-step explanation:
Answer:
Exact Form:
3
2
Decimal Form:
1.5
Mixed Number Form:
1
1
2
Step-by-step explanation: