Answer:
10 x 10, 2 x 50
Step-by-step explanation:
how far does a train go in 1 minute
Answer:
Step-by-step explanation:
umm we need more info. then that... like they can go all types of speeds in 1 minute..
The table shows how the radioactivity in iodine-131 decreases over time. The initial amount is 2.00 grams.
Radioactivity in Iodine-131
Day 1 2 3 45 7 8
Grams 1.83 1.68 1.54 1.41 1.30 1.19 1.09 1.00
6
Calculate the average rate of change in grams per day from day 4 to day 7. Enter your answer as a decimal rounded to the tenths place.
Answer:
The average rate of change in grams from day 4 to day 7 is approximately 0.11 grams/day
Step-by-step explanation:
The table for the radioactivity in iodine-131 can be presented as follows;
[tex]{}[/tex] [tex]{}[/tex]Radioactivity in iodine-131
Grams [tex]{}[/tex] Day
1.83 [tex]{}[/tex] 1
1.68 [tex]{}[/tex] 2
1.54 [tex]{}[/tex] 3
1.41 [tex]{}[/tex] 4
1.30 [tex]{}[/tex] 5
1.19 [tex]{}[/tex] 6
1.09 [tex]{}[/tex] 7
1.00 [tex]{}[/tex] 8
The average rate of change in grams from day 4 to day 7 is given as follows;
[tex]The \ rate \ of \ change \ from \ day \ 4 \ to \ day \ 7 = \dfrac{F(7) - F(4) }{7 - 4} = \dfrac{1.09 - 1.41 }{7 - 4} =-\dfrac{8}{75}[/tex]
The average rate of change in grams from day 4 to day 7 = -8/75 ≈ 0.11 g/day
The average rate of change in grams from day 4 to day 7 ≈ 0.11 grams/day rounded to the tenths place.
The average rate of change in grams per day from day 4 to day 7 is 0.11.
Calculation of the average rate of change:Radioactivity in iodine-131
Grams Day
1.83 1
1.68 2
1.54 3
1.41 4
1.30 5
1.19 6
1.09 7
1.00 8
Now the average rate should be
= F(7) - F(4) \ 7 - 4
= 1.09-1.41 \3
= -8\75
= 0.11
hence, The average rate of change in grams per day from day 4 to day 7 is 0.11.
Learn more about rate here: https://brainly.com/question/24656271
What is the slope of a line that passes through the points (0, 3) and (5,96)
Answer:
[tex]m = \frac{96-3 }{5-0}[/tex]
remember: slope is Δy/Δx :)
[tex]m = \frac{y_{1} - y_{2} }{x_{1} - x_{2}}[/tex]
[tex]m = \frac{96-3 }{5-0}[/tex]
[tex]m = \frac{93 }{5}[/tex]
if y=4 when x=12, ind y when x=24
Answer:
y=8
Step-by-step explanation:12 time what equals 24 its times two so you do 4 time 2 and you get your answer.
Use properties to rewrite the given equation. Which equations have the same solution as x + + x = – x? Check all that apply.
x + = – x
18x + 20 + 30x = 15 – 6x
18x + 20 + x = 15 – 6x
24x + 30x = –5
12x + 30x = –5
Answer:
options (a), (b), (c), and (e) have the same solution as the solution of 3/5 x + 2/3 + x = 1/2 -1/5x.
Step-by-step explanation:
The given equation is
3/5 x + 2/3 + x = 1/2 -1/5x
First, rearrange the equation to have constant terms and the terms having variable on the separate side.
3/5 x + x +1/5x= 1/2 - 2/3
9/5 x = -1/6
x= -1/6 ÷ 9/5
x= -1/6 x 5/9
x= -5/54 ...(i)
Now, find the solution of all the options in the similar way:
(a) 8/5 x +2/3 = 1/2 -1/5 x
8/5 x + 1/5 x = 1/2 - 2/3
9/5 x = -1/6
x= -1/6 ÷ 9/5
x= -1/6 x 5/9
x= -5/54 which is same as the solution of the mentioned equation. [ from equation (i)]
(b) 18x + 20 + 30x = 15 – 6x
18x+30x+6x = 15 -20
54x=-5
x= -5/54 which is same as the solution of the mentioned equation. [from equation (i)]
(c) 18x + 20 + x = 15 – 6x
18x+x+6x = 15 -20
25x=-5
x= -5/25 which is not the same as the solution of the mentioned equation. [ from equation (i)]
(d) 24x + 30x = –5
54x = -5
54x=-5
x= -5/54 which is same as the solution of the mentioned equation. [ from equation (i)]
(e) 12x + 30x = –5
42x = -5
42x=-5
x= -5/42 which not is same as the solution of the mentioned equation. [ from equation (i)].
Hence, options (a), (b), (c), and (e) have the same solution as the solutions of the given equation.
What is an equation of the line that passes through the point (-5, -3) and is
parallel to the line 3x + 5y = 15?
9514 1404 393
Answer:
3x +5y = -30
Step-by-step explanation:
The parallel line can have the same x- and y-coefficients. You can find the value of the new constant by using the given point for x and y:
3x +5y = 3(-5) +5(-3) = -30
3x +5y = -30
Answer:
I try the top answer and it didn’t work bc it’s y= -3/5x-6
Step-by-step explanation:
¿seria seguro enviar a un helicóptero a la cima de una montaña para llevar a cabo un rescate por aire? un grupo de senderistas se queda atrapado en la cima de una montaña. equipo de búsqueda y rescate sugiere ge se necesitará un trasporte aéreo en helicóptero pa rescatarles. el helicóptero disponible para el rescate puede volar con seguridad a una altura de 5.200 metros sobre el nivel del mar. desafortunadamente, se trata de una montaña inexplorada y no disponen de datos confiables acerca de la altura de la cumbre
la unica informacion que tienes es la siguiente :
un senderista tardó 6,5 horas en dar la vuelta alrededor de la base de la montaña y estimo que recorrió una distancia de 26 kilómetros aproximadamente
los senderistas atrapados se mantuvieron en contacto con el campamento base por radio y , aunque recorrieron mas de 32 kilómetros, estimaron que la distancia en línea recta hasta la cima de la montaña es de unos 6 kilómetros
Answer:
Is this question in Spanish
Express your answer as a polynomial in standard form.
f(x) = 3x² + 4x – 7
g(x) = 2x – 11
Find: g(f(x))
Answer:
g(f(x)) = 6x^2 + 8x - 25
Step-by-step explanation:
So, first we have to substitute f(x) into the place of x in the g(x). This will be shown as g(f(x)) (which is what we need to solve). Next, we have to substitute 3x^2 + 4x - 7 into the place of x in 2x - 11. We do this because we had to substitute f(x) into the place of x in g(x).
So this is how your equation should look, and then solve:
g(f(x)) = 2(3x^2 + 4x - 7) - 11
g(f(x)) = 6x^2 + 8x - 14 - 11
g(f(x)) = 6x^2 + 8x - 25 < ---- This is your answer
Hope this helps!
19. Find the perimeter of a triangle if the side lengths are 3 1/2 ft, 5 2/3 ft,
and 4 1/6 ft.
Answer: 13 1/3
Step 1: Find the LCD
Step 2: Add the fractions
Step 3: Simplify
May anyone please help me?
Answer:
8
Step-by-step explanation:
10-2
8
Shen’s mother gave him $10 to go buy groceries. He picked up a gallon of milk for $3.49, three pounds of oranges that cost $1.14 per pound, and a box of cereal for $3.46. Shen used front-end estimation to determine whether he had enough money for the groceries. How much did he estimate the total cost would be?
He estimated that he had about $7 worth of groceries.
He estimated that he had about $9 worth of groceries.
He estimated that he had about $10.30 worth of groceries.
He estimated that he had about $10.40 worth of groceries.
Answer:
He estimated that he had about $10.40 worth of groceries.
Step-by-step explanation:
SOMEBODY PLEASE HELP I WILL GIVE BRAINLIEST!! i need these answers Asap!! thank you!
Answer:
Simplifying
h(23) = 55
Reorder the terms for easier multiplication:
23h = 55
Solving
23h = 55
Solving for variable 'h'.
Move all terms containing h to the left, all other terms to the right.
Divide each side by '23'.
h = 2.391304348
Simplifying
h = 2.391304348
Step-by-step explanation:
Simplifying
H(4) = k
Reorder the terms for easier multiplication:
4H = k
Solving
4H = k
Solving for variable 'H'.
Move all terms containing H to the left, all other terms to the right.
Divide each side by '4'.
H = 0.25k
Simplifying
H = 0.25k
will mark as brainliest
Simplify 5 - 2 · 3 + 4.
Answer: 3
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
order of operations says, first we do the multiplication
5-6+4
then we do subtraction
-1+4
and do the addition
3
hope this helped!
E. To remove a zero pair, drag a box around the pair and click Remove. Remove all of the zero pairs.
What is the sum in simplest form?
Ans = Error
There is no problem for me to solve. Try re-posting the problem and I will try to solve it.
A line contains the points (82, -96) and (87, -86)
What is the slope of the line in simplified form?
A. -2
B. 1/2
C. 2
D. -1/2
==================================================
Explanation:
Subtract the y coordinates
y1-y2 = -96-(-86) = -96+86 = -10
Subtract the x coordinates in the same order
x1-x2 = 82-87 = -5
Divide the two differences to get the slope m
m = (y1-y1)/(x1-x2)
m = -10/(-5)
m = 2
You could also use the formula
m = (y2-y1)/(x2-x1)
to get the same result. All that matters is that you subtract in the same order for the x and y coordinates.
Which equations are equivalent
Answer:
Step-by-step explanation:
wheres the picture?
slope of the line will mark brainliest to who asnwers first
set up proportion and solve
Answer:
A.
Step-by-step explanation:
The Answer is A
What is 68% of 118
Show work
Answer:
80.24
Step-by-step explanation:
The easiest way to do this is to convert 68% to a decimal and multiply by 188. To convert a percent into a decimal, all you have to do is move the decimal point twice to the left. So...
68%=.68 Now, we can multiply by 118.
.68x118=80.24 68% of 118 is 80.24!
I hope this helped you out...have a nice day c:
Determine if (5,6) is a solution to the equation y=1+x
Answer:
YES
Step-by-step explanation:
Substitute values.
(6) = 1 + (5)
6 = 1 + 5
6 = 6 YES
Divide.
−4 1/3÷−2 3/5
123
145
215
235
Answer:
1 2/3
Step-by-step explanation:
Answer:
A. 1 2/3
Step-by-step explanation:
−4 1/3
−2 3/5
1 2/3
What is an inherent zero? Describe three examples of data sets that have inherent zeros and three that do not.
Choose the correct answer below.
O A. An inherent zero is a zero that occurs in the data set naturally.
O B. An inherent zero is a value that the variable can take.
Ос.
An inherent zero is a zero that implies none
Answer:
An inherent zero is a zero that implies none
Step-by-step explanation:
A zero which means that a phenomenon or variable does not exist or isn't represented is called inherent zero. It simply implies none.
Datasets that have inherent Zero:
1. Average age of participants In years
2.) Rainfall height in inches during rainy period
3.) Speed of wind during a storm.
Datasets with no inherent zero :
Dataset which involves measuring constructs usually have no inherent zero, such as :
1.) Average IQ level in a group of students
2.) Average level of satisfaction
3.) measurement involving temperature
Sara ran a race at a constant speed of 10 minutes per mile. The entire race was 10 miles long. How many minutes did it take her to finish the entire race?
Answer:
100 minutes or 1 hour and 40 minutes
Step-by-step explanation:
10×10=100
Answer: do the math
Step-by-step explanation: go on google find a calculator us it. and solve it
hope this helps
David made an error when determining the product of (–2.5)(–8.3). Step 1: (–2.5)(–8.3) = (–8.3)(–2.5) Step 2: = (–8.3)(–2) + (–8.3)(–0.5) Step 3: = (–16.6) + (–4.15) Step 4: = –20.75 In which step did David make his first error? Step 1 Step 2 Step 3 Step 4
Answer:
Step 3.
Step-by-step explanation:
We need to tell the incorrect step in the given problem for the product of (–2.5)(–8.3)
Step 1. (–2.5)(–8.3) = (–8.3)(–2.5)
Step 2:
We can write -2.5 = -(2+0.5)
(–8.3)(-(2+0.5)) = (–8.3)(-2)+(-8.3)(-0.5)
= 16.6 + 4.15
Step 3.
= 20.75
He has done an error in step 3. It should be 16.6 + 4.15 instead of (–16.6) + (–4.15). As a result, he get incorrect answer.
Answer:
it is step 3
Step-by-step explanation: i just took the test mark me brainliest lol :>
during a pickup basketball game the ratio of players on the red team to players on the blue team was 5:6. Write whether each statement is true or false
Answer:
false
Step-by-step explanation:
thats not fair for the other team
Write the function using (x, y) when moving right 7 and down 9.
Your answer
Answer:
7,-9
Step-by-step explanation:
move 7 right from 0 and -9 down from 0
The scale of a map is 1.5cm : 75km. What is the actual distance between two
towns that are 3.5cm apart on the map?
Answer:
175 km
Step-by-step explanation:
1.5/75=3.5/x
1.5x=262.5
x=175
can someone help?
( I need it by 10/20)
=====================================================
Explanation:
C is the midpoint of AB. This means AC is half as long as AB
Put another way, AB is twice as long as AC
AB = 2*AC
AB = 2*( AC )
32 = 2*( x/2 + 10 ) .... substitution
32 = 2*(x/2) + 2*10 ... distribute
32 = x + 20
x+20 = 32
x = 32-20 .... subtract 20 from both sides
x = 12
---------
If x = 12, then
AC = x/2 + 10
AC = 12/2 + 10
AC = 6+10
AC = 16
which is half of AB = 32, so it confirms our answer.
The morning temperature in Erin's apartment was 79°. Erin turned up the air conditioner and
the temperature in her apartment that afternoon was 68º. Write an integer to represent the
change in temperature. (1 point)
Enter your answer
Submit
O
BI
Answer:
The integer which represents the change in temperature from morning to afternoon is -11°
Step-by-step explanation:
Since the morning temperature in Erin's apartment was 79°, and the temperature in Erin's apartment that afternoon was 68°. If Erin turned up the temperature and the temperature in the afternoon was 68°. So, the temperature change from 79° down to 68° is thus 68° - 79° = -11°.
So, the integer which represents the change in temperature from morning to afternoon is -11°
Madisyn is planting crops in a triangular garden. The triangular garden can be
seen below. What is the amount of fencing that Madisyn needs?
Answer:
The amount of fencing Madisyn needs is approximately 20.77 m
Step-by-step explanation:
The coordinates of the vertices of the triangular garden are;
A(0, 6), B(6, 5), and C(5, -1)
The length of the sides of the triangle can be found through the given coordinates and the distance between coordinates formula presented as follows;
[tex]Distance \ between \ points \ given \ the \ coordinates = \sqrt{\left (y_{2}-y_{1} \right )^{2}+\left (x_{2}-x_{1} \right )^{2}}[/tex]
Therefore, the length of AB is [tex]\sqrt{\left (5-6 \right )^{2}+\left (6-0 \right )^{2}} = \sqrt{37}[/tex]
The length of BC is [tex]\sqrt{\left (5-(-1) \right )^{2}+\left (6-5 \right )^{2}} = \sqrt{37}[/tex]
The length of AC is [tex]\sqrt{\left (6-(-1) \right )^{2}+\left (0-5 \right )^{2}} = \sqrt{74}[/tex]
Therefore;
The amount of fencing Madisyn needs = The length of the sides of the triangular garden
The length of the sides of the triangular garden = The length of AB + The length of BC + The length of AC
The length of the sides of the triangular garden = √37 + √37 + √74 ≈ 20.77 m.
The amount of fencing Madisyn needs ≈ 20.77 m.
