Element X decays radioactively with a half life of 9 minutes. If there are 860
grams of Element X, how long, to the nearest tenth of a minute, would it take
the element to decay to 94 grams?
Answer:28.7 minutes
Step-by-step explanation:
Write the function that represents the sequence in the table
Answer:
n= 5x each time
Step-by-step explanation:
=
Eddie has a cake. He eats 5/12 of the cake. Then he gives Donny 1/3 of the remaining cake. How much cake does Donny get?
Answer:
2 1/3
Step-by-step explanation:
Answer:
Donny would be getting 4/12 of the cake, 1/3 x 4 on both sides would bring it from 1/3 to 4/12 ^-^
Step-by-step explanation:
PLS HELP ASAP! GIVING BRAINLIST!
help please i'll give you 20 points!!
Answer:
8
Step-by-step explanation:
I'm not completely sure but I hope it helps
Answer:
28 is answer
Step-by-step explanation:
14×2= 24
Hope it helpedddddddddd
Please helpppppppppppp
Find the greatest common factor of 8m and 12m^3
Please help me find the area of this shape please!
What is £1.30 increased by 20%
Step-by-step explanation:
20 % of 1.30 is 1.30×20 / 100 = 0.26
1.30 increased by 20% is 1.30+0.26= 1.56
find the quotient of 6y²-5y-56 and 2y-7.
help.
Answer:
i have made it in above picture
How many solutions are there to the equation below?
5x - 2 - 3x(1 + 2) = 2(2 + 3)
A. O
B. infinitely many
C. 1
bfnbhsvkisbvjdkbv jv ksnhvsdf vkdbsnjbv k
Answer:
41
Step-by-step explanation:
47-6=41
Kayden is a teacher and takes home 100 papers to grade over the weekend. He can grade at a rate of 6 papers per hour. How many papers would Kayden have remaining to grade after working for 10 hours?
Answer:
40
Step-by-step explanation:
6 * 10 = 60 papers done and complete
100- 60 = 40
Answer:
40 papers will be remaining
Step-by-step explanation:
= As,It take 1 hour to grade 6 papers
= 1 -6
= 10-?
= by cross multiplying we get 60 papers
= 100 - 60
= 40 papers
Thank you
help i don't know what to do please help
mustafa is putting a sidewalk using two diffrent style bricks, one style brick is 8 inches long, and the other style brick is 6 inches long ,and he intends to use y of these. his sidewalk is to be 288 inches long write down an equation to represent the situation
Answer:
8y+6y=288
Step-by-step explanation:
8y+6y= 12y
12y=288
12y divide by 12 = 288 divided by 12 =
y=24
need help solving to complete the square
Answer:
b=9 and b=-21
Step-by-step explanation:
first step: move 195 to the other side by adding to get:
b^2+12b=189
now to find the constant you take the b value which is 12 divide that by 2 and square it. then add the product to both sides. 12/2=6, 6^2=36
b^2+12b+36=189+36
next factor b^2+12b+36.
(b+6)^2=225
square root both sides to get:
b+6=15 and b+6=-15
solve by subracting 6 to both sides and you get the 2 final answers.
b=9 and b=-21
10. Find the measurement of angle A
(look at the picture)
Answer:
m angle = 116
Step-by-step explanation:
1/4 + 3 = ??
What’s the answer??
Answer:
3.25
Step-by-step explanation:
divide then add 3
Answer:
3 1/4 or 13/4
Step-by-step explanation:
I need help due in a Hour
50 yd
explanation:Which graph below is a tree graph? Place a pointer on your answer.
Answer:
b
Step-by-step explanation:
BRAINIEST PLLLLLLSSSSSS
Seven tubs of yogurt cost $28. How much does one tub of yogurt cost?
Answer:
4
Step-by-step explanation:
3 dollars each I believe
Write in quadratic form
f(x)=(x+2)^2
how much feet is in a mile
Answer:
5280
Step-by-step explanation:
Answer:
There are 5,280 feet in a mile.
21=-7n
It's a one-step equation. Please help!!
Answer:
-3=n
Step-by-step explanation:
21=-7n
divide both sides by -7
-3=n
Answer:
n=3
Step-by-step explanation:
21 ÷7=3
n=3
determine an equation and the radius for the circle that has its centre at the origin (0,0) passes through the point A 4-3
Given:
The center of the circle is at (0,0).
The circle passes through the point A(4,-3).
To find:
The radius and the equation of the circle.
Solution:
Distance formula:
[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
The radius of the circle is the distance between the points (0,0) and (4,-3).
[tex]r=\sqrt{(4-0)^2+(-3-0)^2}[/tex]
[tex]r=\sqrt{(4)^2+(-3)^2}[/tex]
[tex]r=\sqrt{16+9}[/tex]
[tex]r=\sqrt{25}[/tex]
[tex]r=5[/tex]
So, the radius of the circle is 5 units.
The standard form of a circle is
[tex](x-h)^2+(y-k)^2=r^2[/tex]
Where, (h,k) is center of circle and r is the radius.
Putting h=0, k=0, r=5, we get
[tex](x-0)^2+(y-0)^2=5^2[/tex]
[tex]x^2+y^2=25[/tex]
Therefore, the radius of the circle is 5 units and the equation of the circle is [tex]x^2+y^2=25[/tex].
Quick help please!!!
Answer:
D
Step-by-step explanation:
this isnt highschool, u are dum
7 * ( -15 ):
por favor, es urgente):
Answer: From what I understand you want me to do 7*(-15)??? and the answer to that is -105.
Step-by-step explanation: All you have to do is 7*-15
이
3. What is the value of -44.4-7?
64
A.
B.
1
64
C.
1
64
D.
-64
Answer:
c im quessing though but i got -54.1 so i dont know
Step-by-step explanation:
PLS HELP ME 12x - 15 = 6 - 3x
Can you pls show me the solving steps and the answer I have to type a paper on how to solve this problem help me plsss (10 points)
Answer:
x= 21/15
if you need to reduce it would be x=7/5
Step-by-step explanation:
12x-15 =6-3x
add 3x to both sides
15x- 15 = 6
now add 15 to both sides
15x = 21
lastly divide both sides by 15
x= 21/15
if you need to reduce it would be x=7/5
Answer:
x = 7/5 or 1.4
Step-by-step explanation:
12x - 15 = 6 - 3x Need to move one variable term to the other side to
+3x + 3x isolate it on one side
---------------------------
15x - 15 = 6 need to +15 to isolate the variable term
+15 +15
-----------------------
15/15x = 21/15 (simplify 21/15 = 7/5) need to divide by 15 to isolate x
------------------------
x = 7/5 or 1.4
Help me lol please and thank you