Answer:
26.10 mgStep-by-step explanation:
Initial amount of drug = 50 mgRemains after each hour = 85%Time = tThis relationship can be shown as a function:
y(t) = 50(0.85)^tAfter 4 hours remaining drug in blood:
y(4) = 50(0.85)^4 = 50(0.522) = 26.10 mgArms Race. A simplified mathematical model for anarms race between two countries whose expenditures fordefense are expressed by the variables x1t2 and y1t2 is:___________
Answer:
hello your question is incomplete attached below is the complete question
answer : The speed of e^-5t is faster and approaches infinity faster than e^t this is because as t → ∞ , e^-5t approaches 0 and e^t remains constant which simply shows that X and Y are constants when t → ∞
Step-by-step explanation:
attached below is a detailed solution of the problem
The speed of e^-5t is faster and approaches infinity faster than e^t this is because as t → ∞ , e^-5t approaches 0 and e^t remains constant which simply shows that X and Y are constants when t → ∞
NEED HELP FAST
The height of a soccer ball that was kicked up into the air is given by the equation \displaystyle h(t)=-16t^2+352th(t)=−16t
2
+352t where t is the time in seconds after the ball was kicked.
The ball reaches a maximum height of ________
feet.
It will take the ball __________
seconds to reach its maximum height.
The ball will reach the again after _______
seconds. .
80% of the 400 pieces of art at the Classical Art Museum are paintings. How many pieces of art are paintings?
GIVING BRAINLIEST idk whats it called =_=
WITH ALOT OF POINTZ
Answer:
320 pieces are paintings
Step-by-step explanation:
Hope i helped : )
Answer:
320
Step-by-step explanation:
% means out of 100 so 80% is 80 out of 100 also known as 80/100
80/100 times 400
32000/100
320
What is the equation of the line that passes through the points (0, 3) and
(5.-1) written in slope-intercept form? Answer plz
How can you use multiplication to help you divide 6,000 by 20?
Answer:
20 x ___ = 6000
Step-by-step explanation:
Thats how you use multiplication
HOPE THIS HELPS
PLZZ MARK BRAINLIEST
Need math help asap, an explanation would also be much appreciated, thanks.
Use the angle bisector theorem. In this case, it says
3 / (8 - y) = 9 / y
Solve for y :
3y = 9 (8 - y)
3y = 72 - 9y
12y = 72
y = 6
Triangle abc is similar to triangle def. which proportion can be used to find the length of DE on centimeters (please leave a small explanation)
Answer: DE=12
Step-by-step explanation:
ABC similar to DEF
That means that AB corresponds to DE , AC to DF and BC to EF
So AB/DE=AC/DF=BC/EF=5/15=3/9=1/3
So 4/DE=1/3
=>DE=12
Answer:=
Its A = 4/3=DE/9
Step-by-step explanation:
A coin is flipped 8 times. Find the probability of the event if you get exactly 6 heads
Answer:
3/4
Step-by-step explanation:
If you flip it 8 times then and get heads 6 times then your probability would be 6/8 but simplified down to 3/4
It takes 24 minutes for a pump to empty a tank. A larger pump can empty the tank in half the time. How long would it take to empty the tank with both pumps operating?
Pls help thank you :)
Answer:
points= (0,4) (1,-4) (-1,4) and make the line
Step-by-step explanation:
i just know
Y - intercept of the line y = 3/4x +2
Answer:
Step-by-step explanation:
3/4
Help please this is due soon
Answer:
98
Step-by-step explanation:
=====================================================
There are two ways to find the answer
-----------------------
Method 1
Multiply the length and width by the scale factor
10*3.5 = 35
4*3.5 = 14
The new larger rectangle is 35 inches by 14 inches
Add up the four sides: 35+14+35+14 = 98
The perimeter of the larger rectangle is 98 inches
-----------------------
Method 2
We can use the formula P = 2(L+W) to get the perimeter of the original rectangle
P = 2(10+4)
P = 2*14
P = 28
The original rectangle has perimeter 28 inches.
Or you could note how 10+4+10+4 = 28
Multiply this with the scale factor to get 28*3.5 = 98 inches
(HELP THIS IS TIMED!)
Which situations can represent the expression n+2? Check all that apply.
Ramya's grade increased by two points
the difference between Escher's highest score and two
the number of chapters Wally read plus two more
two fewer than the maximum number of absences Ellie is allowed
two added to Allison's age.
the sum of Mikel's height and two
Answer:
1,3,5,6
Step-by-step explanation:
Sorry I didn't get to this in time, but if you see this, please give me brainliest, apariently I need it to get to the next answer. Thank you for your time.
Harrison has 80 CDs in his music collection.
If 30% of the CDs are country music and 50% are pop music, how many CDs are other types of music?
Answer:
THE ANSWER IS 9 CDS THANK ME LATER
Step-by-step explanation:
Consider random samples of size 50 from a population with proportion 0.35.
Find the mean and standard error of the distribution of sample proportions.
Round your answer for the mean to two decimal places, and your answer for the standard error to three decimal places.
Answer:
The mean is [tex]\mu_{\^ p } = p = 0.35[/tex]
The standard error is [tex]SE = 0.06745[/tex]
Step-by-step explanation:
From the question we are told that
The sample size is n = 50
The population proportion is [tex]p = 0.35[/tex]
Generally given that the sample size is large enough , then the mean of the distribution is mathematically represented as
[tex]\mu_{\^ p } = p = 0.35[/tex]
Generally the standard error of the distribution is mathematically represented as
[tex]SE = \sqrt{\frac{p (1- p )}{n} }[/tex]
=> [tex]SE = \sqrt{\frac{0.35 (1- 0.35 )}{50} }[/tex]
=> [tex]SE = 0.06745[/tex]
Help please idk what to do
Answer:
The parallel slopes are the same as the regular slopes. The perpendicular slopes are equal to -1 * (1/slope)
Step-by-step explanation:
Answer:
For Parallel slop is the same. For perpendicular int is opposite reciprocal.
Step-by-step explanation:
For example, the parallel slope of 3 is 3 and perpendicular is -1/3
Which of the ratios below is equivalent to 2:1? Select all that apply.
A) 6:4
B) 8:4
C) 10:5
D) 6:12
E) 6:3
The ratios below that are equivalent to 2:1 is 8:4, 10:5 and 6:3. That is options B, C, and E.
To find the ratio of a given two quantities how many times one quantity is greater or smaller than the other.
Therefore in option B, when 8:4 is simplified by division,
8/4 = 2/1 = 2:1
Therefore, in option C, when 10:5 is simplified by division,
10/5 = 2/1 = 2:1
Therefore, in option E, when 6:3 is simplified by division, 6/3 = 2/1 = 2:1
Therefore, the ratios below that are equivalent to 2:1 is 8:4, 10:5 and 6:3.
Learn more about ratio here:
https://brainly.com/question/2328454
help plsplspls asap !! :)
Answer:
lets just say the f stands for 1 and 1 times negative 4 is negative 4
and 5 will stay 5 the equation would be -4/5 so after u divide the 4 and the five you get negative 1
Quickest to answer is brainliest!
Answer: 60%, 0.599, 2/3
Step-by-step explanation:
Answer:Second one
Step-by-step explanation:
the sum of 2 numbers is 60. one number is 4 times as large as the other. what are the numbers?
Solve for X
x+3 1/3=8 1/2
Answer:x= 31/6
Step-by-step explanation:
Solve for
x
by simplifying both sides of the equation, then isolating the variable.
Please please help me
Answer:
2a squared - 4a
Step-by-step explanation:
12 a^2 - 3a - 10a^2 - a
12 - 10 = 2
-3 - 1 = -4
2a^2 - 4 a
Anton bought a picnic cooler . His total bill with tax was $7.95. He paid 6% sales tax. How much did he pay for the cooler alone without the tax?
A.) 1269
B.) 57.95
C.) 7.95
D.) %50
find the value of x the missing leg
Answer:
the answer is 17
wlecome
Step-by-step explanation:
Answer:
the answer would be
Step-by-step explanation:i hope this helped
is 12 a direct variation
Answer:Yes
Step-by-step explanation:
A square and a rectangle have the same perimeter. The square has a side length of 8x units. The rectangle has a length of (4x + 10) units and a width of 14 units. What will be the perimeter of both the rectangle and square?
A. 34 units
B. 60 units
C. 64 units
D. 2 units
Answer:
the answer is d(2 units)
Answer:
C 64 units
Step-by-step explanation:
P = 2L + 2W
square
2(8x) + 2(8x) = 16x + 16x = 32x.
rectangle
2(4x + 10) + 2(14) = 8x + 20 + 28= 8x + 48
32x = 8x + 48
-8x -8x
24x = 48
divide both sides by 24
x = 2
P = 32(2) = 64
Kenny reads 4/7
pages in 2/3 minutes. How many pages can he read in 1 minute?
Answer:
6/7
Step-by-step explanation:
75% of the apple pies are sold on Tuesday and the remainder with thrown out if 12 apple pies were sold on Tuesday then how many worth grown out
Answer:
75 % of 12 = (75 * 12 ) / 100 = 9 were sold
12 - 9 = 3 were thrown out
Step-by-step explanation:
Michael makes a deposit of $800 in his bank account. Two years later, he had a total of $832 in his account. What is the interest rate on his savings account?
Which of the ratios below is equivalent to 4:1? Select all that apply.
A) 12:3
B) 24:6
C) 8:4
D) 16:4
E) 10:6
Answer:
A B and D
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
divide by 3
