11 The table below shows the amount of a decaying
radioactive substance that remained for selected
years after 1990.
0
2
5
9
14
17
19
Years After 1990 (X)
Amount (9)
750
451
219
84
25
12
8
Write an exponential regression equation for this
set of data, rounding all values to the nearest
x thousandth. Using this equation, determine the
amount of the substance that remained in 2002, to
the nearest integer.
Answers
Related Questions
Will give BRIANLY
Select the equivalent expression.
Answers
three postal workers can sort a stack of mail in 30 minutes, 30 minutes, and 60 minutes, respectively. find how long it takes them to sort the mail if all three work together.
Answers
Answer:
it will take about 1/3 of the time (10 minutes)
Step-by-step explanation:
Answer:
Step-by-step explanation:
t/30+t/30+t/60=1
2t/60+2t/60+t/60=1
5t/60=1
5t=60
t=12 minutes
what is half of 3/4 teaspoon?
Answers
Answer:
One half of 3/4 teaspoon is equal to 3/8 or 0.375 teaspoons. One method of finding the answer in the fraction form of 3/8 is to multiply the fraction 1/2 by 3/4 : )
Step-by-step explanation:
One half of 3/4 teaspoon is equal to 3/8 or 0.375 teaspoons.
Here, we have,
given that,
what is half of 3/4 teaspoon
One method of finding the answer in the fraction form of 3/8 is
to multiply the fraction 1/2 by 3/4 ,
or, we can divide 3/4 by 2
i.e. 1/2 × 3/4
as, half = 1/2
so, we get,
=> 3/ 2×4
=> 3/8
=>0.375
Hence, One half of 3/4 teaspoon is equal to 3/8 or 0.375 teaspoons.
Learn more about the Division here:
brainly.com/question/22357901
#SPJ6
can someone please help me
Answers
Answer:
3[tex]\sqrt{15\\}[/tex]
Step-by-step explanation:
In the accompanying diagram of right triangle ACB, altitude CD is drawn to hypotenuse AB. If AB = 25 and CB = 10, what is the length of DB? (if you don’t know dont answer)
Answers
Answer:
The answer is 15
Step-by-step
if that didnt work sorry
enter a letter.
Line ____ is a transversal.
Answers
Find the length of the third side. If necessary, round to the nearest tenth.
Answers
Answer:
7.8
Step-by-step explanation:
1. 5^2 +6^2=x^2
2. 25+36 = x^2
3. 61=x^2
4. [tex]\sqrt{61}[/tex] = 7.8
Help plzzzzz plzzzzzzzzzzzzsszssssszzzDetermine the intercepts of the line.
y-intercept:
x-intercept:
Answers
Answer:
Step-by-step explanation:
x intercept: 3.5
y intercept: 2.5
Find the gradient of the line segment between the points (2,2) and (0,6).
Answers
Answer:
slope-intercept formula -----> Y2-Y1/X2-X1
Step-by-step explanation:
X1 = 2 X2= 0
Y1 = 2 Y2=6
6-2/0-2= -2
G= -2
Bobinvested$6500intoamutualfund with 3.5% monthly interest rate. What is the balance in the account after one month?
Answers
Answer:
$6727.50
Step-by-step explanation:
35/1000*6500
= 35*6.5
=227.50
6500+217.50
6727.50
I need this done! Decent amount of points for it (:
Answers
Answer:
umm its the quouto to the thing
Step-by-step explanation:
Answer:
Hope this helps!!
Step-by-step explanation:
#9(a)- 2x+7=10
#9(b)- ?
#9(c)- 2a+25
#9(d)- 30h=147
#9(e)- 4c+3t=21
#9(f)- 8c+2000=3600
I don't know about #9(c). So someone else will have to answer that one. Sorry.
Can the sides of a triangle have lengths 6, 13, and 14?
Answers
Answer:
Step-by-step explanation:
No; . The sum of the lengths of any two sides of a triangle must be greater than the length of the third side.
A factory robot recently examined some bulbs, of which 4 were flawed and 26 were not. Considering this data, how many flawed bulbs would the robot be expected to find in a batch of 15 bulbs?
Answers
Answer:
2
Step-by-step explanation:
Given that:
Flawed bulbs = 4
Not flawed = 26
Total examined = (flawed + not flawed)
Total examined = (4 + 26) = 30
P(flawed) = flawed / total
P(flawed) = 4 / 30 = 0.1333333
If 15 is examined :
Expected number of flawed bulbs :
(4/30) * 15 = 2
Cost to store: $55
Markup. 120%
selling price :
quickly please <3
Answers
Answer:
Determine your COGS (cost of goods sold). ...
Find out your gross profit by subtracting the cost from the revenue. ...
Divide profit by COGS.Step-by-step explanation:
What is the average rate of change of f(x) = 1/4x²-4 over the interval from 0 to 3?
Answers
Answer:
no answer there is no answer from the choice
I need help solving an angle in right triangle
Answers
Answer:
X=41.8°
went setting this up we know we have to use the Sin trig function because the Hypotenuse and the opposite side are being used. This makes our equation Sin x= 4/6.
This answer was incorrect.
(4x +3)^2 + (3x - 2) (4x + 3) = ?
Answers
Answer:
192x^4+304x^3+36x^2−135x−54
Step-by-step explanation:
Pls help I don’t get it
Answers
Answer:
Try typing into a scientofic calculator I reccomed the site desmos
Step-by-step explanation:
Answer:
12a + 8b
Step-by-step explanation:
There isn't An outcome due to the fact that it needs more to be worked out, but that's the simplified form, I believe that's what they wanted to know.
Hope It Helps!
Please do number 19 for me.
Answers
20x=180
x=9
Angle ABC is the top one
8x9=72
Answer:
[tex]x = 9[/tex]
[tex]angle \: abc = 8x + 6x + 6x \\ 20x = 180 \\ x = \frac{180}{20} \\ x= 9[/tex]
[tex]plzz \: \: mark \: as \: brainliest[/tex]
cosas que aga sentir a una mujer bien
Answers
Answer:
Talvez que las alagen o que todo sea como ella quiera?
No soy experto lo siento
Step-by-step explanation:
please help me with this question fast!!!!
Answers
Sum1 plsssss help plssss
Answers
Answer:
The answer is 2/3 divided by 2/9= 3
Step-by-step explanation:
can someone help me the answer is not 8/25
Answers
Answer:
29/90
Step-by-step explanation:
0.32 x10
3.22 -0.32
2.9 /9
2.9/9 x10/10
29/90
Answer:
29/90
Step-by-step explanation:
here if
f=0.32222....... — 1
10f=3.2222...... —2
now eq2-eq1
we get
9f=2.9
f=2.9/9
f=29/90
The school that Rob goes to is selling tickets to a spring musical. On the first day of ticket sales the school sold 7 adult tickets and 4 child tickets for a total of $89. The school took in $119 on the second day by selling 7 adult tickets and 14 child tickets. Find the price of an adult ticket and the price of a child ticket.
Answers
7. If AHBN - ALYR, find the value of x.
B
R
*+11
28
Y 21
L
N
H
3x-7
Answers
Answer:
x = 13
Step-by-step explanation:
I created a proportion from similar sides HB ≈ LY and NH ≈ RL
28/21 = (3x - 7)/(x + 11)
then cross-multiply to get
28(x + 11) = 21(3x - 7)
28x + 308 = 63x - 147
28x = 63x - 455
-35x = -455
x = 13
Can someone please help me
Answers
. A recipe calls for 2/3 cup of sugar for every 1/2 teaspoon of vanilla.
What is the unit rate of cups per teaspoon?
Answers
To get to 1 tbs we multiply 1/2 by 2
If you do that to one side you have to do it to the next
2/3 x 2 is 4/e which simplifies to 1 1/3
A town has a population of 14,000 and grows at 2.5% every year what will be the population after five years to the nearest whole number
Answers
Peter works two part time jobs. He is paid $6 er hour at job a and $9 per hour at job b. Last wee eter worked a total of 24 hours at both jobs and madr $189. Hobmny hours dud peter work at job a?
Answers
Answer: Peter worked 9 hours at job a
Step-by-step explanation:
Step 1
Let the number of hours worked in job a = x
and number of hours worked in job b = y such that the total hours worked would be expressed as
x=y= 24 ---eqn 1
also since $6 and $9 dollar are paid per hour for the job and the total amount made is $189, it should be expressed as
6x + 9y =$189--- equation 2
Step 2
Now we have gotten two expressions to solve for number of hours, we can now solve
x+y= 24 ---eqn 1
6x + 9y =$189--- eqn 2
Using elimination method, we multiply equation 1 by 6 and subtract from equation 2
6x + 9y =189
-6x+6y=144
3y=45
y= 45/3 =15
To find x
x+y = 24
x+15=24
x= 24-15
x= 9
fff
Therefore Peter worked 9 hours at job a and 15 hours at job b
Write an equation to represent the following statement.
24 is 4 times as great as k.
Answers
Answer:
24 x 4 = k x 4
Step-by-step explanation: