Answer:
After 14 years, the area will be 2342.4 km squared.
Step-by-step explanation:
Since the area is decreasing, we can use the decaying exponential function
[tex]y = A(1 - r)^{t}[/tex]
where
A represents the initial area.r represents the rate at which the area changest is the time periodGiven
Initial Area A = 4000 km squared
Rate r = 3.75% = 3.75/100 = 0.0375
Time period t = 14
To Determine
The Area after 14 years = y = ?
Plug in the values in the formula
[tex]y = A(1 - r)^{t}[/tex]
[tex]y\:=4000\left(1\:-\:0.0375\right)^{14}[/tex]
[tex]y=4000\cdot \:0.9625^{14}[/tex]
[tex]y=2342.4[/tex] km squared
Therefore, after 14 years, the area will be 2342.4 km squared.
According to the graph, a student who studies 10 hours per week should earn a score of about how much?
Which situation could NOT represent a proportional relationship?
A The number of gallons of water in x barrels with 42 gallons of water in each barrel
B The amount an employee who makes $8.50 per hour earns in h hours
C The weight in x weeks of a puppy that gains 2 pounds per week if its starting weight is 8 pounds
D The cost of purchasing p pounds of bananas for $0.55 per pound
a)
2x+4=y
y=-2x-3
y= 2x + 4
parallel, perpendicular or none?
Answer:
Step-by-step explanation:
25-[20-{10-(7-5-3)}]=
Answer:
16
Step-by-step explanation:
When there are more than 1 brackets , there is a specific order of opening those brackets. First we open the bar , then round brackets , then curly brackets & then square brackets.
Using the order , let's solve this.
25-[20-{10-(7-5-3)}]
=> 25-[20-{10-(7 - 8)}]
=> 25-[20-{10 - (-1)}]
=> 25-[20- {10 + 1} ]
=> 25-[20 - {11}]
=> 25 - [ 20 - 11 ]
=> 25 - [9]
=> 25 - 9
=> 16
What is Exterior angles theorem?
Answer:
Exterior Angle Theorem
Step-by-step explanation:
An exterior angle of a triangle is formed by any side of a triangle and the extension of its adjacent side. The Exterior Angle Theorem states that An exterior angle of a triangle is equal to the sum of the two opposite interior angles.
HELP PLEASE
this is really hard help me
What is the standard deviation of the following data set?
{14, 26, 40,52}
Your answer:
N
11.12
13.78
15.6
14.32
Answer:
D. 14.32
Step-by-step explanation:
The formula for standard deviation is:
[tex]SD = \sqrt{\frac{\sum | x-\mu|^2}{N}}[/tex]
The mean μ is 33.
The (x minus μ) squared are 361, 49, 49, 361 respectively.
So that the SD = [tex]\sqrt{\frac{820}{4}} \approx 14.31782...[/tex]
Susan works as a hostess where she makes $8.75 per hour. She also babysits and earns $10 per hour. Last week she made $165. If she worked six hours more as a hostess then she did babysitting, how many hours did she babysat last week?
Answer:
she babby sat atleast 4 hours last week
Would the circled area be an interior or exterior angle? Pls help!!!
Answer:
interior angle
Step-by-step explanation:
Curve fitting is a methode of finding
The method of least squares is a widely used method of fitting curve for a given data
Step-by-step explanation:
It is the most popular method used to determine the position of the trend line of a given time series. The trend line is technically called the best fit. ... The sum of the deviations of y from their corresponding trend values is zero.
Can someone pleaseee help!!
Answer:
b
Step-by-step explanation:
The battery life for Bruhier’s cell phone is longer when he has fewer apps running. When only one app is running, the battery will last for 16 hours. When four apps are running, the battery will only last for 4 hours.
This situation represents
variation.
The constant of variation, k, is equal to
.
If eight apps are running, Bruhier’s battery will last for
hours.
Answer: The correct answer is
Inverse
16
2
Step-by-step explanation:
Please give explanation and I will give brainliest
Answer:
30.8, 37
Step-by-step explanation:
First, we know that the angles in a triangle add up to 180, so 180-75-48= m∠G=57°. Then, using sohcahtoa, we have tan(G) = DF/FG = DF/20. tan(G) ≈ 1.54, so 20(1.54)=DF≈ 30.8
Next, using sohcahtoa, we have cos(G) = FG/DG = 20/DG. cos(G)≈0.54, and 20/0.54=DG ≈ 37
I GIVEEEE BRAINKLILSETR
Answer:
G) 5 hours
Step-by-step explanation:
120 / 2 = 60 mph, since the plane travels at 60 mph for it to travel 300 miles it will be: 300/60 which equals 5
How do you do this problem? Expressions and Calculator Skills
7x2 + 2x – 6?
X=-3
Answer:
51
Step-by-step explanation:
7x^2 + 2x -6 [x= -3]
7(-3)^2 + 2(-3) - 6
7(9) + (-6) -6
63 + -12 = 63 - 12 = 51
Consider the intersecting lines shown. Which of the following statements is true?
Question 10 options:
A)
∠y ≅ ∠z
B)
∠x ≅ ∠y
C)
m∠x + m∠y = 180°
D)
m∠x + m∠y = 90°
Answer:
C. m∠x + m∠y = 180
Step-by-step explanation:
The two straight line in the diagram intersect each other to form two pairs of vertical angles. These are <x and <z, and <y and w.
The only statement from the given options that is true is m∠x + m∠y = 180.
This is because they are angles in a straight line. The sun of angles in a straight line is 180°.
Help? **WILL GIVE BRAINLIEST**
Answer:
i think it C
Step-by-step explanation:
38% of 1200 Otto middle school students are 6th how many auto students are sixth graders
Answer:
456 students
Step-by-step explanation:
38% = 0.38
1200 x 0.38 = 456
Help me please I will give points
Answer:
5) x = 21, y = -13
6) x = 20, y = -2
I don't know how to get #7, I'm sorry.
Step-by-step explanation:
5) 4x - 3(8 - x) = -3
4x - 24 - 3x = -3
+24 +24
4x - 3x = 21
x = 21
y = 8 - 21
y = -13
6) x + 3y = 14
-3y -3y
x = -3y + 14
-5(-3y + 14) + 6y = -28
15y + 14 +6y = -28
21y + 14 = -28
-14 -14
21y = -42
÷21 ÷21
y = -2
x + 3(-2) = 14
x + -6 = 14
+6 +6
x = 20
3 lemons cost $0.99. At this rate, how much would 8 lemons cost?
Step-by-step explanation:
3 lemons = $0.99
=> 8 lemons = $0.99 * (8/3) = $2.64.
8 lemons cost $2.64.
Answer:
2.64$ for 8 lemons.
Step-by-step explanation:
3 lemons = 0.99$
1 lemon = 0.99/3
= 0.33
Cost for 8 lemons = 0.33 x 8
= 2.64$
Hope this helps !!
A health organization collects data on hospitals in a large metropolitan area. The scatterplot shows the relationship between two variables the organization collected: the number of beds each hospital has available and the average number of days a patient stays in the hospital (mean length of stay).
Which hospital represented in the scatterplot would be considered a high leverage point?
the hospital with 35 beds
the hospital with 140 beds
the hospital with 200 beds
the hospital with 310 beds
Answer:
D. the hospital with 310 beds
Step-by-step explanation:
just did it in edge
Rachel drew the two graphs below. Graph R On a coordinate plane, a line goes through points (0, 0) and (2, 1). Graph S On a coordinate plane, a line goes through points (0, 0) and (1, 2). Rachel says that Graph R has a greater constant of variation than Graph S. Which statement explains whether Rachel is correct? Rachel is correct; Graph S is nonproportional. Rachel is correct; Graph R goes farther along the x-axis. Rachel is not correct; both graphs go through the origin and have the same constant of variation. Rachel is not correct; Graph S is steeper than Graph R.
Answer:d
Step-by-step explanation:
Answer:
d
Step-by-step explanation:
Please help me I really need help
Answer:
5
7
9
11
13
Step-by-step explanation:
u just have to plot the x values into the x variable if that makes sense
here is an exampla
which of these consumers might depend on a rabbit for its energy?
a.horse
b.coyote
c.grasshopper
d.cow
Answer:
coyote
Step-by-step explanation:
Two sides of a triangle are equal in length. The third side of the triangle is 3 more than the equal sides. If the perimeter of the triangle is 48, what is the length of the longest side?
Show work
Answer:
18
Step-by-step explanation:
The two smaller sides are 15 and the larger one is 18
Answer:
18Step-by-step explanation:
Let the length of equal sides be x, then the perimeter is:
2x + (x + 3) = 483x + 3 = 483x = 45x = 15The longest side is:
15 + 3 = 18Select the correct answer from the drop-down menu.
Find the polynomial.
(-1/3,4} is the solution set of
A. 3x^2-11x+4=0
B. 3x^2-11x-4=0
C. (1/3)x^2-11x-4=0
D. (-1/3)x^2-11x-4=0
Answer: B.) 3x^2 - 11x - 4 = 0
Step-by-step explanation:
Divide 3.87 x 10 by 6.28 x 10 Express your answer in scientific
notation. Round the coefficient to two decimal places.
Answer:
oo my god the points are more
Answer:
PLEASE MARK AS BRAINLIEST!!!!
Step-by-step explanation:
DIVISION ANSWER = 0.61624203821
SCIENTIFIC NOTAION =
6.1624203821 × 10-1
(scientific notation)
= 6.1624203821e-1
(scientific e notation)
= 616.24203821 × 10-3
(engineering notation)
(thousandth; prefix milli- (m))
= 0.61624203821
(real number)
I DON'T KNOW HOW TO ROUND THE COEFFICIENT
The weight of body is 420N. calculate its mass.
Answer:
mass = 42 kg
Step-by-step explanation:
We know that we have the formula that
W = m * g
Then
given
weight (w) = 420
g = 10 m/s²
then
W = m* g
420 = m * 10
m = 420/10
m = 42 kg
Hope it helps :)
Answer:
Step-by-step explanation: weight = 420N
mass= ?
we know,
weight = mass . acceleration due to gravity
or, 420 = mass . 9.8
therefore mass = 42.85 kg
I WILL GIVE BRAINLIEST
Answer:
slope = 4/1 or 4
Step-by-step explanation:
Answer: 4
Step-by-step explanation:
Use the slope formula. change in y/change in x. The change in y is 4 because if your subtract the y coordinate 4 from the y coordinate 8, you get 4. The change in x is 1 because if you subtract the x coordinate 2 from the x coordinate 3, you get 1. 4 (change in y)/1 (change in x) is 4. Hope this helps!
someone please im crying please
Answer:
slope- intercept form: y=3/4 x -7
point slope form: y-4=3/4(x+4)
and dang stop crying... hope this helped