At the beginning of an experiment, a scientist has 204 grams of radioactive goo. After 120 minutes, her sample has decayed to 3.1875 grams.

What is the half-life of the goo in minutes?

Find a formula for G(t), the amount of goo remaining at T. G(t)=


How many grams of goo will remain after 50 minutes?

Answer:K= 240/5.9953

Step-by-step explanation: i did the math  for the first question lol

Which expression is equivalent to (4x−3y4)−2?
negative quantity 16 times x raised to the sixth power end quantity over y raised to the eighth power
−16x6y8
1 over quantity 16 times x raised to the sixth power times y raised to the eighth power end quantity
x raised to the sixth power over quantity 16 times y raised to the eighth power end quantity

A rectangular prism has a volume of 90 cubic feet. The prism has a height of 2 feet and a width of 3 feet. What is the length of the prism?

Given that 2x/5 = 3y/8, find the ratio of x:y.

Bob traveled 45 miles in 1.5 hours. The distance (d) and time (t) are in a proportional linear relationship. Which graph represents this relationship?

Sweet Branch Grocery sells 5 bottles of soda for $6. As of next week, though, the price per bottle will increase by 10%. How much will 12 bottles of soda cost next week?

Question. {Please explain your answer}

(Which statement correctly describe the data shown in the scatter plot?)


A. The scatter plot shows no association.


B. The scatter plot shows a linear association.


C. The point (2, 14) is an outlier.


D. The scatter plot shows a negative association.

Which number is the constant?
4x-3y+2z+27
Group of answer choices
3
4
2
27

(2.2)¹⁴/(2.2)⁸

help me please

Evaluate (4a2 + b) ÷ c , when a= −2, b= −1, and c= 5.

please help me on this question

Which best explains why the slope of the line between points A and D is the same as the slope between points A and B?

A groundskeeper needs grass seed to cover a circular field, 290 feet in diameter. One pound of grass seed covers about 400​ square feet of field.

How many pounds of grass seed should the groundskeeper buy to cover the circular field?

-EXPLAIN YOUR RESONING-

help please!

Identify the set of ordered pairs that represents y as a function of x.
Responses

{(0, 0), (0, 1), (2, 3), (3, 4)}

{(1, 0), (2, 0), (3, 3), (3, 4)}

{(−1, 0), (1, 0), (3, 0), (3, 4)}

{(0, 0), (1, 1), (2, 3), (3, 3)}

At a grocery store, cartons of 6 eggs are $2 each. Packages of 10 ham steaks are $15 each. Kenia wants to have equal numbers of eggs and ham steaks. What is the least amount of money she can spend? ​

Can someone help, please

Can someone help, please

PLEASE HELP DUE TODAY A cooking club baked 24 cookies to share among its 10 members How many cookies did each member receive? Select EACH correct answer. A. 10/24 B.2 4/24 C.2 4/10 D.24/10

Help! I'll mark as brainlist/

please some help meee !!!!! :((((((

Jacob is replacing the molding around two sides of a picture frame. the measurements of the sides of the frame are 4 3/16 in. and 2 5/16 in. what length of molding will Jacob need?

Ruby has tangerines and watermelons in a ratio of 83:25. How many tangerines does she have if she has 50 watermelons? On the double number line below, fill in the given values, then use multiplication or division to find the missing value.

please
help me im doing homework need help understanding

I'm posting this question again because I seriously need help with it and it's only 8th grade math

(-1.9)⁷/(-1.9)²

1. (-1.9)¹⁴
2. (-1.9)⁹
3. (-1.9)⁷/²
4. (-1.9)⁵

Hello. This is a very quick question, that requires little effort. I am currently working on my math assignment, and for the project I have to measure five different people. Unfortunately, I don't have enough people to measure. You will get 100 points just for answering this :) But if you do a troll answer, I'll report you :)
"Using a tape measure or ruler, measure the length (in inches) of a person’s left foot and then measure the length (in inches) of that same person’s forearm (between their wrist and elbow). Refer to the diagrams below. You will have two measurements for each person."

I am only 14 so this is hard for me; I will mark brainliest
6=3x

HELP ASAP 53 POINTS
i need this very fast pleaseeee

HELPPPPPPPPPPPPP
The chances of finding a rare card in a pack of trading cards can be represented with the equation y equals one-twentieth times x, where y represents the number of rare trading cards and x represents the number of packs of trading cards. Determine how many rare trading cards you would find if you bought 60 packs of trading cards.

one-twentieth
3
20
1,200

13 friends go to a restaurant. The bill comes to $170. The restaurant's policy is to add on a tip that is 18% of the bill for parties of 8 or more. What is the total cost, with the tip?

What is the coefficient in the expression 5 − 6?

Group of answer choices
6
5x-6
5
5x
Thank u!