Answers
Answer:
La respuesta es c
Step-by-step explanation:
Related Questions
A 256- gallon barrel of radioactive Urikium is spilled at a factory. The entire area is evacuated. Experts say that the area can be deemed safe after only 2 gallons remain. Unfortunately, it is to toxic for any clean-up efforts, so residents will just have to wait for the Urikium to evaporate. Fortunately, Urikium has a half-life of only three hours. That means that half of the Urikium will evaporate every three hours
Answers
Answer:
21 hours
Step-by-step explanation:
Since 2^8 = 256, that means it will take 7 half-lives to become two gallons
7 half-lives * 3 hours = 21 hours
256, 128, 64, 32, 16, 8, 4, 2
Answer:
Experts say that the area can be deemed safe after only 2 gallons remain. Unfortunately, it is too toxic for any clean-up efforts. She residents will
Step-by-step explanation:
To solve half-life problems, you use the equations:
f(t) = T0 (1/2)^(t/t1/2). where T0 is the initial mass and T1/2 is the half-life.
So we get f(20)= 5 = T0•(1/2) ^ 20/11
T0 = 17.63 mg
For the second part of the question, we plug 0.5 mg into the equation:
0.5 = 17.63 • (1/2)^ t/11
t = 56.5 days
Aiden walked 2 miles in 2/5 hour. Find the unit rate.
Answers
Answer:
1 mile- 2/10 hr
Step-by-step explanation:
2 miles- 2/5 hr
1 mile- 2/10 hr
(divide by 2)
hope this helped :)
Help please
WILL MARK YOU BRAINLIEST!!!!!
Answers
HELPPP PLSSS 8TH GRADE MATH!!!!!
Answers
...............................
Which sentence is not written correctly?
Group of answer choices
previous clocks only showed the hours and minutes.
I never knew that it was the first clock to show hours, minutes, and seconds.
I think Benjamin Franklin was an amazing person.
Dad and I read that it was the first clock to show hours, minutes, and seconds.
Which quotation is not written correctly?
Group of answer choices
"What are some things that Benjamin Franklin is noted for?" asked Ms. Kane.
"Yes, he invented the lightning rod," replied Ms. Kane.
"Benjamin Franklin wrote Poor Richard's Almanac," answered Jason.
Maria asked, "wasn't he an inventor, too?"
Which name is not written correctly?
Group of answer choices
Mr. Arnold Skelly
Ms. Andrea tillis
Miss Molly McRea
Dr. B. Rimmins
Which street name is written correctly?
Group of answer choices
72 country Acres Lane
1157 Wakeshire Terrace
4049 Cambridge ct.
5443 nothingham dr.
Which city and state is written correctly?
Group of answer choices
Fox Ridge, Indiana
west Haven, Connecticut
Grand isle, NE
Grand rapids, MI
Which sentence is not written correctly?
Group of answer choices
The Ganges is a river in India.
The Hawaiian Islands are in the Pacific Ocean.
Is Mt. Everest in nepal?
Crete is an island in the Mediterranean Sea.
Which sentence is not written correctly?
Group of answer choices
Yes, my birthday is October 31.
Isn't your birthday on halloween?
Jana's birthday is on the Fourth of July.
That's another name for Independence Day.
Which sentence is written correctly?
Group of answer choices
Memorial day is always the fourth Monday in May.
We do not have school on Martin luther King Day.
The girl scouts have an annual food collection in our town.
Have you ever been to the Strawberry Festival?
Which title of a poem is written correctly?
Group of answer choices
"The snow man"
"Yesterday in Oxford Street"
"A Charm For Spring Flowers"
"Something told the wild Geese"
Which sentence is written correctly?
Group of answer choices
I liked it better than "Atlantis, The Lost Empire."
Troy liked "Recess: School's Out" better.
My favorite movie is "The Parent trap."
Troy and I saw "The lion king" at the theater.
Answers
Answer:
1. previous clocks only showed the hours and minutes.
2. Maria asked, "wasn't he an inventor, too?"
3. Dr. B. Rimmins
4. 1157 Wakeshire Terrace
5. Fox Ridge, Indiana
6. Is Mt. Everest in nepal?
7. Jana's birthday is on the Fourth of July.
8.The girl scouts have an annual food collection in our town.
9. "Yesterday in Oxford Street"
10. My favorite movie is "The Parent Trap."
Step-by-step explanation:
1. Does not have proper capitalization.
Solve the equation. 1/2y+4=2 4 –4 –1 12
Answers
Answer:
y = - 4Step-by-step explanation:
¹/₂y + 4 = 2 {subtract 4 from both sides}
¹/₂y = -2 {multiply both sides by 2}
y = -4
mike is training to run a marathon. currently, he can run four miles in 44 minutes. if he maintains this running speed, how long will it take him to run 10 miles?
pls help:)!
Answers
Are the triangles below similar? Explain your answer.
Answers
Answer:
no
similar triangles have to be the same shape
Step-by-step explanation:
Please help with the first one. Also could you tell me if the other one is correct? And if not could you correct it please.
Answers
Answer:
Step-by-step explanation:
start the line from the 75 going to the 80. thats where you put the line on the thing. and im not sure with the 2nd one look it up or find someone to help u:)
Al multiplicar dos números negativos obtenemos como resultado un número
Answers
Answer:
positivo
Step-by-step explanation:
dos números multiplicados negativos siempre se vuelven positivos.
espero que esto ayude :)
2x=8(x^2)
What is the solution of this maths equation?
Answers
Answer:
x=0,x=1/4
Step-by-step explanation:
2x=8(x^2)
Subtract 8(x^2) from both sides
2x-8x^2=8x^2-8x^2
Simplify
2x-8x^2=0
Factor 2x-8x^2;
2x-8x^2
=-8xx+2x
Rewrite 8 as 2*4
=-2*4xx+2x
Factor out common term -2x
=-2x(4x-1)
-2x(4x-1)=0
x=0 or 4x-1=0
Solve 4x-1=0;x=1/4
4x-1=0
Add 1 to both sides
4x-1+1=0+1
Simplify
4x=1
Divide both sides by 4
4x/4=1/4
Simplify
x=1/4
The solutions to the quadratic equation are;
x=0,x=1/4
Hope this helped!!!!
Which product is irrational?
A. 2x50
B. 64x4
C. 9x49
D. 10x8
Answers
Answer:
i don't see in product in here that is irrational
Step-by-step explanation:
A store offers a discount of $43 when you buy a painting for $100. What is the percent discount?
PLS HELP
Answers
help ASAP!!!
I'll give you points
Answers
G I DID THIS ON KHAN!!!
this math is easy just don't understand this question
Answers
Answer:
156 ft²
Step-by-step explanation:
the shaded area is a trapezoid
The area of the trapezoid: (6 + 18) × 13 ÷ 2 = 156
Using the net below, find the surface area
of the pyramid.
3\in.
2 in.
2 in.
Surface Area =
[?] in.2
Enter
Answers
Answer:
16
Step-by-step explanation:
Base: 2x2=4
The 4 Triangles: 2x3x1/2 (for each triangle), each triangle equals 3
3x4=12
12+4=16
16 is the final answer
plz have explanation with answer
Answers
2 * m + n =
2 *(-2) + 3 = Sustituyendo el valor de cada letra.
-4 + 3 = -1
me ayudan porfa
Answers
Answer:
2xm+3=34
Step-by-step explanation:
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Cookies cost $3.50 per package. How many packages of cookies can Gail buy if she has \$42 .00? Write an equation and solve.
Answers
Answer:
Solve: 12 packagesEquation: n = $42.00¢Step-by-step explanation:
Given
1 package = $3.50¢
∴, ? package = 42.00¢
Equation
Identify the variable. Let n be the variables, then, the equation is: n=$42.00¢
Solve
Since 1 is 3.50
To find 42.00
Divide 42.00 by 3.50
42.00 ÷ 3.50 = 12
Therefore, Gail can buy 12 packages with $42.00¢
(I’ll give brainliest) The scale on Bobby's map is 2 in. = 50 mi. His final destination is 6 in. away
from his current location. How many miles does Bobby have to go before he
reaches his destination?
A.50 mi.
B.100 mi.
C.150 mi.
D200 mi.
Answers
Answer:
C. 150 miles.
Step-by-step explanation:
By multiplying the scale by 3 to get the value for 6 inches, you can find that 6 inches on the map is equal to 150 miles.
3. Suppose the radius of the larger circle is r. What is its diameter?
d2 =
R2
Answers
Answer:
2r
Step-by-step explanation:
You suppose that the radius of a larger circle = r
so diameter = r*2 = 2r
aint really sure tho
Answer:
2R
Step-by-step explanation:
The formula to find the diameter states the relationship between the diameter and the radius. The diameter is made up of two segments that are each a radius. Therefore, the formula is: Diameter = 2 * the measurement of the radius. You can abbreviate this formula as d=2r.
find the length of a using the pythagorean theorem. SOMEONE PLZ HELPPP:)
Answers
Answer:
Step-by-step explanation:
Answer:
a=6
Step-by-step explanation:
edge21
A park bench is located 16 3/4 feet due north of an elm tree a fountain is located 9 1/2 feet due south of the same elm tree
What is the distance in feet between the park bench and the fountain?
A 26 1/4 ft
B 25 1/4 ft
C 25 2/3 ft
D 26 ft
Please help me! thank you alot..!
Answers
Answer: A
Step-by-step explanation: Take 16 and 9 add them u get 25 then u take the fractions turn the 1/2 into 2/4 and add them you then get 1 1/4
What is the value of 419 - 2)+72+ 12 HURRY PLEASE
Answers
Answer:501
Step-by-step explanation: So basically you take 419-2 now thats 417+72=489+12=501
hii please help i’ll give brainliest
Answers
Answer:
II
Step-by-step explanation:
Answer:
quadrant 2
Step-by-step explanation:
MY FRIEND NEEDS THIS RN (40points) PLEASE AND TYY
Answers
Answer:
(2,2)
Step-by-step explanation:
HELP PLEASE 10 POINTS
Answers
Answer:
A
Step-by-step explanation:
please help. solve either one I dont care :(
Answers
Ratio tables what’s the missing ratio
Answers
Answer:
16
Step-by-step explanation:
To solve we must first find what the given ratios equal
8/5 = 1.6
40/25 = 1.6
48/30 = 1.6
this means that x/10 = 1.6
To find x... multiply both sides of this equation my 10 to get x alone
x=1.6×10
x=16
Answer:
16
Step-by-step explanation:
I Hope this helps!
a classroom measures 32 ft long, 25ft wide, and 9ft high. The comb9ned area of doors and windows is 140ft. What is the remaining area of the four walls of the room
Answers
Answer:
886 ft^2
Step-by-step explanation:
2×l×h+2×b×h=2h(l+b)
2×9(32+25)=18×57=1026 ft^2
1026-140=886ft^2