Answer:
Step-by-step explanation:
hello :
Sinx/1-cosx=1+cosx/sinx means : sin²x= (1-cosx)(1+cosx)
sin²x= 1-cos²x
sin²x+cos²x =1
Lana bought a sports car for $75,700. If the value of her car decreases 4.3% annually.
When using the exponential DECAY formula, what would be the value of r?
Given:
The initial value of the car = $75,700
Decreasing rate = 4.3%
To find:
The value of r in the exponential DECAY formula.
Solution:
The exponential decay formula is:
[tex]y=a(1-r)^t[/tex]
Where, a is the initial value, r is the rate of decay on decimal and t is the time period.
The initial value of the car is $75,700 and its value decreases 4.3% annually. So,
[tex]a=75,700[/tex]
[tex]r=\dfrac{4.3}{100}[/tex]
[tex]r=0.043[/tex]
The required exponential decay formula is:
[tex]y=75,700(1-0.043)^t[/tex]
Therefore, the value of r in the exponential decay formula is 0.043.
☽. can someone help me <3?
Answer:
84.9
Step-by-step explanation:
9/2 as a fraction and what is 2/3 reciprocal
Answer:
9/2 = 4 1/2 , 2/3 = 3/2
Step-by-step explanation:
The reciprocal of a fraction is switching the numerator and the denominator.
2/3, switched is 3/2.
To find the mixed form of an improper fraction, you divide the numerator by the denominator.
Like this, 9/2 = 4.5
4 is the whole.
So, 4 would be the whole number.
Then there is 1 left over.
You keep the denominator.
So it would be 4 1/2.
turn 2 3/4 into an improper fraction
Answer:
11/4
Step-by-step explanation:
Multiply the denominator by the whole number and add it to the numerator and keep the denominator the same therefore it would be 11/4.
1/3 divided by 4 what is the awnser for this equation
Answer:
1/12
Step-by-step explanation:
Hope this helps :)
h e l p
Zayn plans to deposit $850 into a savings account that pays 2.4% interest compounded annually. Angelo plans to deposit $860 into an account that pays 2.4% simple interest. They both plan to leave the money invested for 4 years. How much more money will Zayn have than Angelo at the end of the 4 years?
Answer:
Zayn= $928.72
Angelo= $880.64
Zayn has 48.08 more than Angelo.
Step-by-step explanation:
Answer:
zayn- 934.58
angelo- 880.64
Step-by-step explanation:
Find the zeros of the function f(x)=3x2−27.
Answer:
Step-by-step explanation:
To rent some equipment from a local hardware store, it costs $65 for 8 hours. To rent it for 12 hours, it costs $85. If the rate of change is constant, find the rate of change (cost per hour).
Answer:
it costs 7-8$ per hour
Step-by-step explanation:
the answer is estimated
Ralph has a cylindrical container of parmesan cheese. The diameter of the base of the container is 2.75 inches, and the height is 6 inches. What is the area of a horizontal cross section of the cylinder to the nearest tenth of a square inch?
Answer:
The solution is given below:
Step-by-step explanation:
The computation of the area of the horizontal cross section of the cyclinder is given below:
In the case when it is a circle
The area of the circle is
= πr^2
= 3.14 × (2.75 ÷ 2)^2
= 11.873 inches^2
In the case when it is a rectangle
The area of the rectangle is
= 6 × 2.75
= 16.5 inches^2
Hence, the above show the calculations
The area of the horizontal cross section.
When circular is [tex]11.873 inches^2[/tex]
When it is rectangular [tex]16.5inches^2[/tex]
The computation of the area of the horizontal cross section of the cylinder
What is the formula of the area of the circle?The area of the circle is[tex]=\pi r^{2}[/tex]
use the given value in above formula we get,
[tex]= 3.14 \times (\frac{2.75}{2} )^2[/tex]
[tex]= 11.873 inches^2[/tex]
when it is a rectangle then the area of the rectangle is
[tex]= 6 \times 2.75[/tex]
[tex]= 16.5 inches^2[/tex]
Therefore,the area of the horizontal cross section.
when circular is [tex]11.873 inches^2[/tex]
When it is rectangular [tex]16.5inches^2[/tex]
To learn more about the area of the cross section visit:
https://brainly.com/question/24592106
HELP!!!! I NEED TO SUBMIT THIS WITHIN 3 HOURS!!!!!!
At a dinner party, two desserts are being served. Six of the guests choose cheesecake, and eight of the guests choose apple pie. Write two associated part-to-whole ratios for this situation, in simplest form. Then, interpret these ratios within the situation.
Answer:
6:8, 3:4
hope this helps, im not sure if im correct tho sorry
Step-by-step explanation:
What is the value of the expression 3b+20 for b=30
Answer:
110
Step-by-step explanation:
3×30=90
90+20=110
hope this helps
plz can i get brainliest:)
Need some help for this retake
Answer:
74
Step-by-step explanation:
you add the numbers together you get 286 and the total degree of the shape is 360 so you subract 360 and 286 so you get 74
Translate the sentence into an equation.
The sum of 5 times a number and 9 is equal to 4.
Pls answer quick!
Choose the correct simplification of the expression (a^2/b^5)^3
A. a to the 6th power over b to the 15th power
B. a to the 5th power over b to the 8th power
C. a over b to the 15th power
D. a6b15
Thanks <3
Answer:
D.......................
Nine more than the product of a number and 3 is equal to 7.
Answer:
This phrase translates to the mathematical expression:
9 + (N x 3) = 7
If you want to solve for the missing number,
N x 3 = -2
N = -2/3
how to do this question
9514 1404 393
Answer:
7 days
Step-by-step explanation:
(a) Filling in the given information will result in two equations in the two unknowns. Dividing one by the other will tell you the value of b.
n=2
1.8 = A₀·b²
n=3
2.4 = A₀·b³
Dividing the second equation by the first gives ...
2.4/1.8 = (A₀·b³)/(A₀·b²) = b
4/3 = b
__
(b) Substituting this into the first equation, we can find A₀.
1.8 = A₀·(4/3)²
1.8(9/16) = A₀ = 1.0125
A₀ is the value of A when n=0. It is the area of the patch at the beginning of observation, before any days passed.
__
(c) The area will be 7 cm when ...
1.0125·(4/3)^n = 7
(4/3)^n = 7/1.0125 . . . . . . . . . . . . divide by A₀
n·log(4/3) = log(7/1.0125) . . . . . . take logarithms
n = log(7/1.0125)/log(4/3) ≈ 6.72092
It will take about 7 days for the area of the patch to exceed 7 cm.
What is the surface area of the prism in square centimeters
Find the missing length of the triangle
20 cm
12 cm
The shape on the left is a square with side length of 12 cm
This means the height of the triangle is 12cm.
Knowing the height and the hypotenuse using the Pythagorean you can solve for the base.
20^2 = 12^2 + x^2
400 = 144 + x^2
Subtract 144 from both sides:
256 = x^2
Take the square root of both sides
X = sqrt(256)
X = 16
X = 16
Which statement Is always true?
The sum of two Irrational numbers is rational.
The product of a rational and irrational number is rational.
The sum of two rational numbers is irrational.
The product of two rational numbers is rationall
Answer:
D) The product of two rational numbers is rational.
HELP HELP HELP HELP
Answer:
24
Step-by-step explanation:
help me just
plz
hmmm
or let me die
A.none
B.vertical
C.Adjacent
D.Complementary
E.Obtuse
Answer:
C. Adjacent
Step-by-step explanation:
The 5th graders want to raise money for their overnight camping trip by selling cornbread during the school Chili Cook-Off contest. All the pans of cornbread are square. A pan of cornbread costs $12. The customers can buy any fractional part of a pan of cornbread and pay that fraction of $12. For example, ½ of a full pan costs ½ of $12.
Answer:
1 / 12 ; $1
Step-by-step explanation:
Pan was 1/4 full and she buys 1/3 of the cornbread in the pan
The fraction of cornbread she buys is :
1/3 of 1/4
1/3 * 1/4 = 1/12
Hence, she bought 1/12 of cornbread
The amount she pays :
Cost of 1 pan = $12
Therefore, the cost of 1/12 of a pan will be :
1/12 * $12 = $1
Hence, she'll pay $1
Help me solve 2 and 4
Answer:
2. answer C
4. answer C
Step-by-step explanation:
hope this helped you :)
Answer: i know 4 but i coudint find 2 but 4 is (D)
URGENT!!!! A ship sails due east from point A for 30 miles. It then
adjusts its course 10° to the north and travels 20 miles to point
B. How far is point A from point B? Estimate the answer to the
nearest tenth. Don't forget the units.
20 mi
12 mi
b
What is the length of the missing leg?
Answer:
13
Step-by-step explanation:
thats my answer byusing calculato
HELP!!!! If u answer in less then 4 minutes i will give lots of points! PLEASE
Which numbered choice below
represents the equation used to
develop the chart of values seen
at the right?
1) x + y = -5 2) y = -x + 7
3) x - y = 5 4) y = x + 5
Answer:
the answer would be (4) or y=x+5
Step-by-step explanation:
-4+5 = 1 y=1 check
0+5=5 y=5 check
and so on.
Which expression(s) are equivalent to the given expression?
6x - 18y + 36
A 2(3.2 - 9y + 18)
B 3(2x - 6y +12)
c|4(2x - 14y + 32)
D 6(2-3y +36)
E9(6x - 2y + 4)
Answer:
B
Step-by-step explanation:
You just need to multiply the first number by every number in the parantesis Take care bby :)))
Answer:
B
Step-by-step explanation:
B: 3x2x= 6x
3x6y= 18y
3x12=36
If there's more I apologize but that is all that I could find.
Dominic buys a 64-ounce container of salad mix. About how many ounces of romaine lettuce does the container have?
Answer:
6 oz
Step-by-step explanation:
https://brainly.in/question/28460456
Answer:
options on graph:
lceberg- 40%
romaine- 27%
spinash- 15%
arugula- 12%
carrots- 6%
answer is C. is 18oz.
Step-by-step explanation:
multiply 64 x .27%= 18oz
Solve for n. n =
Fast plz
Answer:
24
Step-by-step explanation:
360 degrees, so 2+6+5+2=15
360/15=24
n=24
How would you show a rate of change of 3.5 meters per minute on a graph?
Answer:
i don't know
Step-by-step explanation: