The half- life of 1-137 is 8.07 days.if 100 grams are left after 40.35 days, how much grams were in the original sample?

Answers

Answer 1

Answer:

8L/2days  = 4L/day

4L/day  x  7 days = 28L

Step-by-step explanation:


Related Questions

The scale of the map measures 1 inch : 1250 miles. if the distances between two cities measure 3 inches on the map, find the actual distance between the two city on the ground

Answers

Answer:

3,750 miles

Step-by-step explanation:

Because one inch is 1250 miles so time that by three you get 3,750

please help i will mark brainliest

Answers

Answer:

Reflections and rotations

Step-by-step explanation:

Reflections and rotations preserves the distance and angle measurements.

Whats the answer I will give brainliest, thanks, and five star

Answers

Answer:

B

Step-by-step explanation:

the one you have selected is correct

what is 9 time 64 what does it equal to

Answers

Answer:

It's 576 if you mean 64 times 9!

Step-by-step explanation:

Help meee PLEAAASEEEEEEEEEEEE

Answers

The answer would be C.
Y=-20/133x - 10/19

Jordan throws a ball from a cliff 12 feet above the ground with an initial velocity of 32 feet per second. In the following functions, h(t) represents the height of the ball above the ground, in feet, with respect to time, t, in seconds, after the ball was thrown. Which of the following functions models the amount of time the ball is in the air?

h(t)= -4(t-1)^2 +3
h(t)= -16(t-1)^2 -4
h(t)= -16(t-1)^2 +12
h(t)= -16(t-1)^2 +28

Answers

Answer:

Your answer will be the third function

Step-by-step explanation:

The base function you need to know is h(t)= 1/2at^2

Your acceleration in this problem is going to be gravity which they give to you, 32 feet per second squared. Since the ball is falling, it means it will have negative acceleration. Now you have the equation h(t)= -16t^2. The final step is to add the initial height from which the ball was dropped giving you: h(t)= -16t^2 +12

Jane is selling handmade hair bows for $5.25 each. A woman came by to buy some for the girls in her daughter's girl scout troop. She spent $84. How many hairbows did she buy?

Answers

Answer:

16

Step-by-step explanation:

Jane is selling handmade bows at $5.25 each

A woman came and spent $84 buying bows

Therefore the number of bows bought by the woman can be calculated as follows

= 84/5.25

= 16

Hence the woman bought 16 bows

helpppppppppppppppppp plzzzzzzzzzzzzzzzzzz

Answers

Answer:

Step-by-step explanation:

A

Can someone solve 6÷2(1+2)

Answers

Answer: 9

Step-by-step explanation:

To solve this problem, we need to use our order of operations, or PEMDAS.

Parenthesis

Exponent

Multiply

Divide

Add

Subtract

6÷2(1+2)           [parenthesis]

6÷2(3)               [multiply/divide from left to right]

3(3)                   [multiply]

9

Now, we know that the answer is 9.

A rectangular carpet measures 12 m by 5 m.
Part of the carpet is covered by a square rug of length 2 m.
What fraction of the carpet is covered by the rug? Give your answer in its simplest form.

Answers

I'm pretty sure the answer is 1/15 or 4/60 because the whole carpet measures 60m and the covered part's area is 4m and that would be 4/60 but simplified 1/15.  Sorry if this is wrong!

To find the fraction of the carpet covered by the rug, we need to determine the area of the rug and divide it by the total area of the carpet.

The area of the square rug can be calculated by squaring its side length: 2m x 2m = 4m². The total area of the rectangular carpet can be found by multiplying its length and width: [tex]12m x 5m = 60m²[/tex]. To find the fraction, divide the area of the rug by the area of the carpet: 4m² / 60m².

To simplify the fraction, we can find the greatest common divisor (GCD) of 4 and 60, which is 4. Dividing both the numerator and denominator by the GCD, we get: [tex]4m² ÷ 4 / 60m² ÷ 4 = 1m² / 15m²[/tex] . Therefore, the fraction of the carpet covered by the rug is 1/15, which means that 1/15th of the carpet is covered by the rug.

To know more about denominator visit:

https://brainly.com/question/7067665

#SPJ2

30 POINTS GUYS!!!
What is the value of x?



Enter your answer, as a decimal, in the box.

x=

Answers

Answer:

[tex]x=3.5[/tex]

Step-by-step explanation:

Notice that CD bisects Angle C.

Then by the Angle Bisector Theorem, we can write the following proportion:

[tex]\frac{6}{4.2}=\frac{5}{x}[/tex]

Now, we can solve for x. Cross multiply:

[tex]5(4.2)=6(x)[/tex]

Multiply:

[tex]21=6x[/tex]

Divide both sides by 6:

[tex]x=21/6=7/2=3.5[/tex]

Hence, the vale of x is 3.5.  

Answer:

4.2

Step-by-step explanation:

Find the unit rate.

$4.80 for 6 cans

The unit rate is $
per can.

Answers

Answer:

0.8

Step-by-step explanation:

Answer:

0.8

Step-by-step explanation:

Solve for x plsss helpppp

Answers

Answer:

x=30

Step-by-step explanation: First we would have to find the two angles of the corner of the triangle. 55° in the bottom left because of verticle angles. And 180-120= 60. And 60+55=115. 180-115=65. 65-5= 60. 60/2= 30. So x=30. (Sorry ik its sloppy) :)

what is P versus NP, its supposed to be one of the hardest questions in the world

Answers

Answer:

P is the set of problems whose solution times are proportional to polynomials involving N's. ... NP (which stands for nondeterministic polynomial time) is the set of problems whose solutions can be verified in polynomial time. But as far as anyone can tell, many of those problems take exponential time to solve.

Step-by-step explanation:

YW!!!

HELP PLEASE ! What is 8x^3+3+6x^2+4x factored? (Show steps please !)

Answers

Add (4x + 3) x (2x 2+1) to get your answer

The domain of a function f(x) is the set of all integers from 0 to 10, and the range of f(x) is the set of all in
from 0 to 5.
Which of the following statements must be FALSE?
SELECT ALL THAT APPLY.
f(8) = 3
f(0) = 7
f(-1) = -8
f(0) = -5
f(10) = 2
f(1) = 2
f(0) = 0

Answers

I think that the correct answer is f(-1)=-8 and f(0)=-5
I hope this helps :D


At the carnival, Sally purchased 20 tickets and a drink that was $4.50. Her total for everything was $44.50.
What was the cost of each ticket at the carnival

Answers

$2 is the answer I assume


Find "both answers.
The answer to the different" question is
The answer to the same three questions is

Answers

The slope of the line is 3

The difference between the consecutive term of the sequence is (1, 3)

To get the slope of the graph, we will use the coordinate points (2, 10) and  (3, 13)

Slope = 13-10/3-2

Slope = 3/1

Slope = 3

Hence the slope of the line is 3

The difference in the term for the x-coordinate is given as:

x = 3 - 2 = 4 - 3  = 5 -4  = 1

The difference in the term for the y-coordinate is given as:

x = 13 - 10 = 16 - 13  = 19 -16  = 3

Hence the difference between the consecutive term of the sequence is (1, 3)

Learn more about slope at: https://brainly.com/question/19417700

what is the directrix of a parabola with focus (4,-1) and a vertex at (4,-5)?​

Answers

Answer:

                y = -9

Step-by-step explanation:

The directrix is at the same distance from the vertex as the focus but on the opposite side of the vertex.

x coordinate the same for a focus and a vertex (4) means the parabola opens up or down and the directrix is parallel to the x-axis.

y coordinate of the focus greater than y coordinate of the vertex means the parabola opens up and the directrix lays below the vertex.

-1-(-5) = - 1 + 5 = 4

so: - 5 - 4 = -9 is the y coordinate of points of the directrix

what this dont get it

Answers

Answer:

[tex]4p+3[/tex]

Step-by-step explanation:

All this question is asking you to do is simplify the given expression by combining like terms.

The point of combining like terms is that you can only combine, well, like terms. Like terms are terms that have the same variables and are raised to the same power. This means that in this case, we can't combine [tex]4[/tex] and [tex]6[/tex] because [tex]4[/tex] is attached to a variable. However, we can combine 6 and -3 because they are like terms; neither is attached to a variable. So, you end up with [tex]4p+3[/tex].

I hope this helps!

The lunchroom tables were clean except for some plates and napkins.

In this sentence, which word should be replaced with precise language?

a.) Tables

b.) Plates

c.) Clean

d.) Some

Answers

The answer for this is (d)
the answer is D or some

Solve for x and y
Need a answer plz

Answers

Answer:

Angle x = 12

Angle y = 49

Property = Isosceles triangles

x = 14
y = 49
answer

Ms. Patel drove 165 miles in 3 hours. If she continues driving at the same speed, how many miles will Ms. Patel drive in 7 hours?

Answers

Answer:

1155

Step-by-step explanation:

165 × 7 = 1155

i hink this is the answert

−10)−3 = A) 0.01 B) 1000 C) −0.001 D) −1000

Answers

Answer:

A

Step-by-step explanation:

I am kinda positive this is it but it might not be

-10^-3 = -0.001

the answer is C

I need help on this. Only right answers only please..

Answers

f(3)= 2
f(16) =16
f(x) is the same thing as y so you can solve it the same way as any other equation. the only difference is when it has a number in the parentheses. if there is a number in the parentheses you will replace all of the x’s in the equation with that number. for example:

original problem problem with f(3)
f(x)=2x*-3x-7 f(3)= 2(3*)-3(3)-7

can any expert help me plzzzzzzzz..........​

Answers

Answer:

i=f

ii= 3-1/20

iii=3.43234

iv=a

v=12

Step-by-step explanation:

Consider the following graph which represents the solutions to a system of inequalities. Which of the following systems of inequalities does the graph represent?​

Answers

Answer:

The system of inequalities is -2x + y > 0    -x + y ≥ 0

Step-by-step explanation:

The form of the equation of a line is y = m x + b, where

m is the slopeb is the y-intercept

The line passes through the origin, then

The value of b = 0The form of the equation is y = m x

Let us look at the graph to find the correct answer

∵ One of the lines are solid and the other is dashed

∵ The shaded area is over the two lines

The signs of the two inequalities are ≥ and >

∵ The two lines pass through the origin

→ That means the y-intercepts are 0

The form of the inequalities are y ≥ m[tex]_{1}[/tex] x and y > m[tex]_{2}[/tex]

There are only two answers that have these forms, so we must find the slope of each line

∵ m = [tex]\frac{y2-y1}{x2-x1}[/tex] , (x1, y1) and (x2, y2) are two points on the line

∵ The solid line passes through points (0, 0) and (2, 2)

∴ m[tex]_{1}[/tex] = [tex]\frac{2-0}{2-0}[/tex] = [tex]\frac{2}{2}[/tex] = 1

→ Substitute it in the form of the equation

∴ y ≥ 1(x)

∴ y ≥ x

→ Subtract x from both sides

-x + y ≥ 0

∵ The dashed line passes through points (0, 0) and (1, 2)

∴ m[tex]_{2}[/tex] = [tex]\frac{2-0}{1-0}[/tex] = [tex]\frac{2}{1}[/tex] = 2

→ Substitute it in the form of the equation

∴ y > 2(x)

∴ y > 2x

→ Subtract 2x from both sides

-2x + y > 0

The system of inequalities is -2x + y > 0    -x + y ≥ 0

Answer:

The system of inequalities is -2x + y > 0    -x + y ≥ 0

Step-by-step explanation:

i did it

i need help with this slope problem

Answers

Answer:

It is the first one and the second one. If it is the same, then the slope will be constant.

Step-by-step explanation:

Answer:

I think it's the second one ( Any two points on the line will produce the same slope)

Step-by-step explanation:

Any two points on a line will ALWAYS have the same slope. There's no way that it won't be that way. That's why you are able to choose any two points on a graph to find a slope.

For the first one, i think it's wrong because although the slope is 1/2, Jennifer used the slope 2/4 while Marshall used 1/2. Even though it's the same, Jennifer didn't technically use 1/2...

And the third option is wrong. The slope isn't 2.

Hopefully this wasn't confusing... :)

Find the percent change from 120 to 192​

Answers

Answer:

The percent change is 60

[tex]60% [/tex]

Answer: 60% increase

Step-by-step explanation:

Complete the steps to solve for x - 0.64x + 0.44x = 4.8

Answers

Answer:

x=40/3 or x=13.3

Step-by-step explanation:

Other Questions
What energy transformation occurs in solar panels found on a roof? heat transfer through any intermediate fluid is known as? 24. Which of the following is true for a generator?A. It transforms thermal energy to electrical energy.B. It transforms mechanical energy into electrical energy.C. It transforms electrical energy into mechanical energy.D. It transforms solar energy into electrical energy. Given XPSDNF, find the values of x and y. We went over this like 3 times. It sounds and looks like pure gibberish The Virginia Company was chartered to set up a new English colony in theAmericas after the failure of Roanoke. True or false GIVING BRAINLIEST FIVE STARS AND HEART!Please define the following terms:condensation, pressure, temperature, thermal energy. which part of earth absorbs the most sunlight?A oceansb soilc atmosphered rivers and lakes On the Duty of Civil Disobedience (Thoreau)State the explicit meaning of the following sentence by putting it into your own words: I cannot for an instant recognize that political organization as my government which is the slave's government also. Find the small positive integer solution that solves the equation. if there is no solution, type NONE.(8x)(mod 13)4x=? Larissa has a BMI of 30% and a waist measurement of 40. Describe Larissa's body composition, set a reasonable goal for her, and devise a plan to help her accomplish the goal. Fahim is 6 feet tall. At noon, he stands with the sun behind him casting a shadow. The distance from the top of Fahim's head to the furthest tip of the shadow is 13 feet. A right triangle with side length 6 feet, s, and hypotenuse 13 feet. [Not drawn to scale] What is the length of Fahim's shadow? Round to the nearest tenth of a foot. 7.0 feet 8.5 feet 11.5 feet 14.3 feet Please help me out! The exchange rate for 1 dollar is 1.3021 euros Which TWO objects are likely to have SSD chips in them?office access cardbank debit cardfood service tokendiscount couponbusiness card he cell performs many cellular processes to ensure the cell is able to maintain homeostasis. The organelles in cells work together to perform different functions to keep the cell balanced. The chloroplast and the mitochondria are two important organelles that provide cells with different types of energy. given the slope of the line and one point that it passes through, represent the equation of the line in point-slope form. then rewrite the equation in slope-intercept form.(-4,1);m=-2/3 HOW WILL EUROPEAN COUNTRIES REACT AS A RESULT OF DAGAMAS ACHIEVEMENT? 5 reasons why do people become drug abuser How do all 6 dimensions of health relate to cancer