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?
Answers
Answer:28.7 minutes
Step-by-step explanation:
Related Questions
President Jackson favored state banks over the Second Bank of the United States because he
believed
A.
the Constitution called for a series of state banks.
B.
state banks should issue a uniform national currency.
C.
the Bank could not control the nation's loans.
D.
the Bank had too much power over the nation's economy.
Answers
Find the value of JK
Answers
Answer:
10t = 7t + 15
3t = 15
t = 5
JK = 50
Write the word sentence as an inequality.
The sum of a number n and
n
is no less
less than
than 55
An inequality is
What is the inequalities
Answers
Line segmentAB has vertices A(−3, 4) and B(1, −2). A dilation, centered at the origin, is applied to AB⎯⎯⎯⎯⎯. The image has vertices A′(−1, 43) and B′(13, −23).
A: 1/6
B: 1/3
C: 3
D: 6
Answers
Answer:
B: 1/3Step-by-step explanation:
It seems the coordinates given are incorrect.
It should read:
A'(-1, 4/3), B'(1/3, -2/3)This reflects the rule:
(x, y) → (1/3x, 1/3y)Correct choice is B
Answer:
B: 1/3
Step-by-step explanation:
(x,y) = (1/3x,1/3y)
Tonya drives for 5 hours at 55 mph. How far does she go?
Answers
for part of a recipe jada adds 0.35 milliliters of vanilla extract to 16.4 milliliters of milk. How many milliliters does the mixture contain??
Answers
Step-by-step explanation:
I believe it is 16.75 because 0.35 + 16.4 is 16.75 why is it addition decimals? Because it says How many milliliters does the mixture contain. It is talking about both combined.
please help first image pleaseeeeee............................................
Answers
Answer:
1:2
Step-by-step explanation:
Which algebraic expression is equivalent to the expression below?
9(2x + 2)
A.
18x + 2
В.
9x + 4
C.
36x
D.
18x + 18
btw I will mark brainliest!
Answers
Answer:
I guess the answer is D - 18x + 18
Using the number 2,405,008.097 what is the place value of all numbers 15 POINTS
Answers
Answer:
Step-by-step explanation:
2, 405,008 .097
2 * 1,000,000 ---> 2 Million
4 * 100,000 ----> 4 hundred thousand
0 -------> ten thousand
5 * 1,000 ----------> 5 thousand
8*1 ------------> eight
0 --------------> tenth
9 * (1/100) -------------> nine hundredth
7 * (1/1000) ----------> seven thousandth
What is the solution to the system graphed below? How do you know?
Answers
Answer:
(1,7)
Step-by-step explanation:
It is where the line intersects. coordinates x axis 1, coordinates y axis 7.
250 is 1.5cm. How thick is 400 pages
Answers
Answer: 2.4 cm
Step-by-step explanation:
1.5 divided by 250 gives that each page is .006cm. 400 times .006 is 2.4cm
Okay, I and my mom do not know how to do this- please help-
Distribution Skill
3 (-5y²- 3)
Help p-p
Answers
=-15y^2-9
Answer:
Step-by-step explanation:
this is the start of your mad algebra skilz.. it does take constant practice, like anything you want to get better at :) keep trying
this is called "Distribution" and is used often
3(-5[tex]y^{2}[/tex] -3)
-15[tex]y^{2}[/tex] +9
if you need more explanation just put your questions at the comments of this problem ... i'll see them :)
giving brainliest
Find the area of the composite figure below.
Answers
Mean
Vasquez read 5 books in January, 8 books in February,
4books in March, and 7 books in April. What is the
average number of books Vasquez reads per month?
Answers
Add all of the numbers given and then divide the sum by the total amount of numbers in the equation.
5 + 8 + 4 + 7 = 24
There are 4 numbers, so:
24 / 4 = 6
The average number of books Vasquez reads per month is 6.
Cecilia is saving money to buy a bicycle. She started with $75 and saves $10 each week from her allowance. Which equation represents how much money, y, Cecilia has at the end of x weeks? O A. y = 75x + 10 o B. y = 10x + 75 O C. x = 75y + 10 O D. X = 10y + 75
Answers
Answer:
y = 10x + 75 If not then
X = 10y + 75
4.6 isosceles and Equilateral Triangles
Answers
Step-by-step explanation:
3).20⁰
4).60⁰
180-70+70_180-140__20
Use the figure above to determine the height of the pickle ball when it was
hit.
Answers
The height of the pickle ball when it was hit is = h = AB = 8.5 feet
The study of angles and of the angular relationships of planar and three-dimensional figures is known as trigonometry. The trigonometric functions (also called the circular functions) comprising trigonometry are the cosecant , cosine , cotangent , secant , sine , and tangent.
Applications of Trigonometry:
Measuring grounds lots, and fields,
Measuring ground surfaces,
Making building perpendicular and parallel,
Roof inclination and roof slopes,
Installing ceramic tiles and stones,
The height and width of the building.
Given in figure
(in feet)
ED = 3
BC = 34
BD = 22
AB = h = height of the pickle ball
Therefore DC = 34 - 22 = 12
In ΔEDC
Let ∠ECD = a
tan a = ED/DC
⇒ tan a = 3/12
⇒ tan a = 1/4 (1)
In ΔABC
∠ACB = a
tan a = h/34
⇒ 1/4 = h/34 (from 1)
⇒ h = 34/4
⇒ h = 8.5
Hence height of the pickle ball is 8.5 feet.
To learn more about Applications of Trigonometry visit:
brainly.com/question/26719838
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What is the straight-line distance between (-2, -7) and (-4, -9) on a coordinate graph?
Answers
Answer:
yeah, the selected is correct
Step-by-step explanation:
distance is...
2 and 2 square root
Describe the transformation of f(x) = sin x to g(x) = sin x - 17 ?
Answers
Answer:
f(x) underwent a downward vertical translation to get g(x)
Step-by-step explanation:
here, we want to describe a transformation
Looking at the two equations, we can notice that the difference between the two is the -17
Practically, we have this difference as 17 subtracted from the second equation
what this mean is that there is a downward vertical translation of the first graph by 17 units to get the second graph
what is the ratios to 25:90
Answers
Answer:
5/18Step-by-step explanation:
25 / 90 =5*5 / 5*18 =5/18What is the answer to 10w + 3 and 3?
Answers
Answer:
Im gonna have to say 10w + 9x?
Step-by-step explanation:
I hope this can help :,)
Answer: 30w + 9
Step-by-step explanation:
10w + 3 * 3 can be written as
3 (10w +3) and u have to distribute 3 to 10 w and the other 3
= 3*10w + 3*3
= 30w + 9
In a survey, some children were asked to choose whether they like to stay up late or get up early.
35% of the students said they prefer to get up early. 28 students prefer getting up early. How many students in total were surveyed?
students
Answers
Answer:
80 Students
Step-by-step explanation:
So I set up my problem like this(This is a way to figure a certain amount of a percent or vice versa):
35 28
____ = _____
100 x
First, you do 100 x 28= 2800
Second, do 2800 divided by 35= 80
The number in students surveyed is 80.
33°
114"
33
A) right scalene
B) acute scalene
C) obtuse isosceles
D) equilateral
Answers
Answer:
b acute I think so ok but that was a weird quistoin
HELP pls if you know this
Answers
Answer:
58
Step-by-step explanation:
Zea has a credit limit of $2,000 on her credit card. Each month, she charges about $200 and makes a payment of $125. Estimate the number of months that Zea can continue this pattern until she reaches her credit limit.
Answers
The number of months that Zea can continue this pattern until she reaches her credit limit will be 27 months.
What is a credit card?A credit card is a method of payment that is given to customers so they may pay a merchant for products and services depending on the debt they have accumulated.
Zea has a credit limit of $2,000 on her credit card. Each month, she charges about $200 and makes a payment of $125.
The distinction between the installment made and the charges done will be given as,
Difference = $200 - $125
Difference = $75
Partition as far as possible by this distinction to find the number of months that Zea can proceed with this example until she contacts her credit limit.
⇒ $2,000 / $75
⇒ 26.667 ≈ 27
The number of months that Zea can continue this pattern until she reaches her credit limit will be 27 months.
More about the credit card link is given below.
https://brainly.com/question/27350251
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19. Macy bought new tires for her car. She chose tires that cost $73 each. However, the tire store was offering a Buy 3Get 1 Free Sale. After this special sale, she had to pay % sales tax . What was , Macy's final cost for all 4 tires?
Answers
Answer:
$219 without tax
Step-by-step explanation:
im not sure how to calculate tax
hope this helps :)
d)
The size is 22.6 degrees, but how did they get it?
Answers
Answer:
Step-by-step explanation:
a). Since, BC is perpendicular to the plane FEDC, measure of angle BCD = 90°
By applying Pythagoras theorem in ΔBCD,
BD² = BC² + CD²
BD² = (10)² + (24)²
BD = √676
BD = 26 cm
B). Surface area of the wedge = Sum of all the surfaces of the wedge
Area of BCD = Area of AEF = [tex]\frac{1}{2}(\text{Base})(\text{Height})[/tex]
= [tex]\frac{1}{2}(10)(24)[/tex]
= 120 cm²
Area of CDEF = Length × Width
= ED × CD
= 26 × 24
= 624 cm²
Area of BCFA = 10 × 26 = 260 cm²
Area of ABDE = ED × BD
= 26 × 26
= 676 cm²
Total surface area of the wedge = 2(120) + 624 + 260 + 676
= 1800 cm²
C). Volume of the triangular prism = Area of the triangular base × Height
= (Area of BCD) × DE
= 120 × 26
= 3120 cm³
d). By applying sine rule in the right triangle BCD,
sin(∠BDC) = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]
= [tex]\frac{BC}{BD}[/tex]
m(∠BDC) = [tex]\text{sin}^{-1}(\frac{10}{26})[/tex]
= 22.6°
Plz help Elijah wants to know how much wrapping paper is needed to cover a box with the dimensions shown.
What is the surface area of the box?
A.
92 square inches
B.
46 square inches
C.
160 square inches
D.
184 square inches
SUBMIT
arrow_backPREVIOUS
Answers
Answer:
184 square inches
Step-by-step explanation:
4 - 3 2/10g = 9 1/2
solve for the variable.
Answers
Answer:
you add then add again
Step-by-step explanation:
culture
473hours to days and hours
Answers
Answer:
19 days and 17 hours
Step-by-step explanation: