Answers
Answer:
Your answer would be B: 30 ft squared
Step-by-step explanation:
Find the area of the circle: 5.5 (radius) multiply it by itself then multiply that by 3.14 which gets you 94.985. Now find the area of the square which is 8*8 = 64. Subtract 64 from 94.985 and your answer will be 30.985. The questions asks for the approximate (estimate), so the closest one would be 30 ft squared
Related Questions
Solve as a difference equation.
After caffeine is absorbed into the body, 1% is eliminated from the body each hour. Assume a person drinks an 8-oz cup of brewed coffee
containing 130 mg of caffeine, and the caffeine is absorbed immediately into the body. Find the difference equation for Yn, the amount of caffeine in
the body after n hours. Solve the difference equation. After how many hours will 65 mg (one-half the original amount) remain in the body? How
much caffeine will be in the body 24 hours after the person drank the coffee?
Answers
Solution :
Let y = amount of caffeine at a given time in body.
n = number of hours
So [tex]$\frac{dy}{dn}= - \ Y$[/tex]
[tex]$\Rightarrow \frac{dY}{Y}=- 0.01 \ dn[/tex]
ln Y = -0.01 n + C
At n = 0, Y = 130 mg
ln 130 = -0.01 x 0 + C
C = ln 130
[tex]$ \ln \frac{Y}{130} =- 0.01 \ n$[/tex]
[tex]$Y = 130 \ e^{-0.01n}$[/tex]
When Y = 65
[tex]$65 = 130 \ e^{-0.01 n }$[/tex]
[tex]$\frac{65}{130}=e^{-0.01n}$[/tex]
[tex]$\ln \frac{1}{2} = -0.01 \ n$[/tex]
n = 69.315 hours
At n = 24 hours
[tex]$Y = 130 \ e^{-0.01 \times 24}$[/tex]
Y = 102.26 mg
Evaluate the expression.
| 31 | + | –5 |
Answers
Answer:
36
Step-by-step explanation:
The answer is the absolute value of 31 + (-5)
So it is 36
What is the value of the function at x = 22 Enter your answer in the box .please help.
Answers
Answer:
its gonna be whatever the y value is when x is 22
Step-by-step explanation:
Please help! (Not hard) I’m just slow
Answers
Answer: i think it is a
Step-by-step explanation:
Answer- the answer is C because x axis gos first therefore y=2
Do both ASAP due in 7 mins and pls show all the steps
Answers
the answer is 1961.6
if you need a remainder, it is 1961 r9
What is the degree of the simplest polynomial function with zeros at the square root of 3, 4i, and -2.
Answers
Answer:
Degree of polynomial → 4
Step-by-step explanation:
Conjugate roots theorem states that if a polynomial has a root (a + ib), then (a - ib) will be the other root.
In this question it has been given that a polynomial function has the zeros (roots) as x = [tex]\sqrt{3}[/tex], 4i and -2.
Therefore, the given polynomial will have four roots, [tex]\sqrt{3}[/tex], 4i, -4i and -2.
Function will be f(x) = (x - [tex]\sqrt{3}[/tex])(x + 4i)(x - 4i)(x + 2)
Degree of the polynomial → 4
Choose the equation of the graph shown below:
y = x - 11-3. y = Ix + 11-3
y = IX - 11 + 3
Answers
Answer:
A or number 1
Step-by-step explanation:
x-1 = -x
so we go this way <--
then we go down 3
so -3
y= lx-1l-3
I hope I'm correct!
Need help with number 3 please
Answers
Answer:
I believe the answer is 7 for the rate of change
Step-by-step explanation:
What is the area in square inches?
Answers
Answer:
946 Sq Inches
Step-by-step explanation:
just cut it off to make two rectangles
28 * 7 = 196
30*25= 750
then add em up
750+196 = 946
Answer:
918 in²
Step-by-step explanation:
Those are just 2 recangles.
1. 30*25 = 750
2. 7*24 = 168
add 750+168= 918
Enter the value of p so that the expression 3(4+n) is equivalent to 3(n+p).
Answers
Answer:
3(4+n)
Step-by-step explanation:
a) 15% of what is 12?
Answers
Answer: 80
Step-by-step explanation:
Given
15% of ? is 12
We multiply
Answer:
80
Step-by-step explanation:
15% × ? = 12
? =
12 ÷ 15% =
12 ÷ (15 ÷ 100) =
(100 × 12) ÷ 15 =
1,200 ÷ 15 =
80
rename 1/4 and 1/8 using the least common denominator ( help pls )
Answers
Answer:
2/8 and 1/8
Step-by-step explanation:
A square has a side that is 5 meters long. What is the diagonal length of the square?
Answers
Answer:
5 meters
Step-by-step explanation:
a squares six sides are all equal, therefore if one side is 5 meters, all other sides are 5 meters
Last week, Leah worked 25 hours on weekdays and 11 hours on the weekend. Which ratio compares the number of hours Leah worked on the weekdays to the total number of hours she worked?
Answers
Answer:
25:36
Step-by-step explanation:
the number of hours on weekdays which is 25, and the total hours she worked is 25+11 which is 36, so it is 25:36
Find a formula for the general term or of the sequence assuming the pattern of the first few terms
continues.
{14, 19, 24, 29, 34, ...}
Assume the first term is a1.
an=?
Answers
Answer:5n+6
Step-by-step explanation :an=a1+d(n-1)
=1+(-5)(n-1) or 1+-5n+5
an=-5n+6
A number with no variable attached is called a what
Answers
Answer:
constants
Step-by-step explanation:
That is, they're the terms without variables. We call them constants because their value never changes, since there are no variables in the term that can change its value.
The term or number with no variable attached is called a constant as in the polynomial or expression.
What is an expression?It is defined as the combination of constants and variables with mathematical operators.
It is given that:
A number consists of the expression with no variable.
As we know, the expression is a combination of numbers, variables, and operators.
If we take an example of the polynomial.
Polynomial is the combination of variables and constants systematically with "n" number of power in ascending or descending order.
[tex]\rm p(x) = a_0+a_1x+a_2x^2+a_3x^3+a_4x^4..........a_nx^n[/tex]
Here a₀ is a constant because the term a₀ has no variables.
Thus, the term or number with no variable attached is called a constant as in the polynomial or expression and the constant value does not change.
Learn more about the expression here:
brainly.com/question/14083225
#SPJ6
Karana's mom bought her two items using a credit card. The first item cost $235, and the second item cost $369. Later, she returned both items to the store. What was the change in the amount owed to the credit card company from returning both items?
A.-$134
B.$134
C.$604
D.-$604
Answers
Answer:
C. 604
Step-by-step explanation:
Karana returned the items so you are adding the money back to the credit card which would be 604. 369 + 235 = 604
Can someone help me with this ONE question? Write an equation.. and solve for X
Answers
Answer:
Equation: 720=(8x-1)+110+(5x+36)+116+(7x+19)+(6x-2)
x=17
Step-by-step explanation:
A 6 sided polygon is 720° degrees
so
720=(8x-1)+110+(5x+36)+116+(7x+19)+(6x-2)
Simplify
720=(8x+5x+7x+6x)+(−1+110+36+116+19+−2)
Combine like terms:
720=26x+278
flip equation:
26x+278=720
subtract 278 from both sides
26x=442
divide by 26 both sides:
x=17
Hope this helps.
What is the independent variable of y=3.5x+2.8
Answers
Answer:its y and x = 6.3
Step-by-step explanation:
look
A quiz consists of 920 true or false questions. If the student guesses on each question, what is the mean number of correct answers
Answers
Answer:
460
Step-by-step explanation:
This quiz is Said to consist of 920 questions. Each if these questions have 2 options of answering them only. Which is True or False.
True represents correct = 0.5
False represents wrong = 0.5
The probability of correct is = 0.5
With a sample size of 920
Mean = no
= 920x0.5
= 460
So the mean number of correct answer from this calculations I just did is equal to 460
what is 9 + 10? hi my name is andy. i have a dad who works on this website and i want to prank him
Answers
Answer:
19.
How do you want to prank him?
Step-by-step explanation:
Answer: 19
Step-by-step explanation: 9+10 is equal to 19. (I get the joke but I don't want to get flagged)
what is equivalent to 9 x (78) will brainlist
Answers
Explanation: Just multiply 78 by 9 and it gave you 702. The parentheses doesn’t mean anything in this :)!
Find X for this shape
Answers
Answer:
x=58
Step-by-step explanation:
ok this is a 5 sided polygon
5 sided polygon has 540 degrees
540-90-120-108-100= the unkown angle
122
but look at the line exterior plus interior = 180 degrees
180=122+x
subtract 122 from both sides
x=58
|-4y+2z|-7z z=-9 and y=2
Answers
Answer:
37 sorry if i calculated wrong
step-by-step explanation:
100 points to the people who answer and you'll be reported if answer with something stupid
Y'all, what's another way to say "dramatic flare"
please and thank you:)
Answers
Answer:
another way to say dramatic flare is flamboyant which means to be loud and dramatic like saying the shirt with the parrots on it is very flamboyant
Step-by-step explanation: brainliest plz
What are the solutions to the equations?
Answers
Answer:
x^2=399+1
x^2=400
x=√400
x=+/-20
A. x=20 and x=-20
Answer:
x = 20 and x = -20
Step-by-step explanation:
I am a math expert. 20^2 and -20^2 are both 400 - 1 = 399.
Everything else is 397 or a wayyy higher number
Trust me the answer is x = 20 and x = -20
If im right, give me brainliest
What is the Cost of Goods if manufacturing costs equal $50 each, packaging equals $1.00 each, delivery equals $2.00 each, and advertising equals $1,000?
Answers
Answer:
$1,053.00
Step-by-step explanation:
50 + 1.00 + 2.00 + 1,000 = 1,053.00
Explanation:
50$ + 1$ + 2$ = 53$
50 for the production
1$ for packaging
2$ for delivery
Niall bought 234 inches of nylon cord for rock climbing. There are 36 inches in 1 yard. How many yards of cord did Niall buy?
Answers
Answer:
6.5 yards of cord were bought
Step-by-step explanation:
234/36=6.5
The teacher has 5 cups or broth to share amoung 4 students. draw a model and explain your answer.
Answers
Answer:
1.25,but your teacher is prolly looking for a fraction so 1 1/4
Step-by-step explanation:
DO NOT PUT 20 THAT PERSON S WRONG
What is 20/19?? absolute value
Answers
Answer:
1.05263
Step-by-step explanation:
hope it helps !