Answer:
The answer is option c.
Please could you give me brainliest
2x + y = 2
x - y = 1
Answer:
mariana bedoya sanchez
The local ranger station tracked and tagged 2,844 adult female black bears in a national park. A random sample of 9 adult female black bears from those tagged had an average body weight of 203 pounds with standard deviation 25 pounds. Which of the following is a point estimate for the population mean weight of all female black bears that are tagged?
a. 9
b. 25/√9
c. 25
d. 203
e. 2,844
Answer:
203
Step-by-step explanation:
Sample size, n = 9
Mean weight, m = 203
Standard deviation = 25
Point estimate for the population mean weight of all black bears that are tagged `
The point estimate of the population mean ;
ΣX / n
Sum of sample / sample size ;
This is the mean value formula for the sample.
However, since it has been given in the question that, sample mean weight value = 203 ; then the point estimate of the population mean weight = 203
Option d: 203 is a point estimate for the population mean weight of all female black bears that are tagged.
Given that:Total tagged adult female black bears in the national park = 2,844Sample size = 9Sample mean of body weight of female black bears = 203 pounds.To find:Point estimate of population mean weight of female black bears that are tagged.
Calculations and explanations:Point estimation of population mean is calculated by calculating the mean of the sample drawn from that population. This estimate is considered best guess of population mean.
The sample mean is obtained by:
[tex]\overline{x} = \dfrac{\sum \text{sample observations}}{\text{sample size}}[/tex]
Since it is given that the sample mean is 203, thus we have the point estimate of the population mean as 203 too.
Thus, 203 is a point estimate for the population mean weight of all female black bears that are tagged.
Learn more about point estimate of population mean here:
https://brainly.com/question/20747890
1. A bank account started with $1000 and earned $10 interest per month
for two years. The bank then paid 2% interest on the account for the
next two years.
Answer:
What exactly is the question here ？？ （lol）
A coffee table is on sale for 20% off the original price of $115. If there is a 6% sales tax, what is the final price of the coffee table?
Answer:
$97.52
Step-by-step explanation:
(original price) 115 - (discount) 23 = 92 (new price)
92 plus 6% sales tax = $97.52 (final price)
The sum of three numbers is 123. The second number is 8 more than the first. The third number is 3 times the first. What are the numbers ?
First number:
Second number:
Third number:
Answer:
41 is my geuss
Step-by-step explanation:
A ticket to Silver Dollar City costs $125. You have a coupon that will save you 33%. How much will you SAVE? In the same scenario, how much will you end up SPENDING for you ticket if you use your coupon?
OIGAN ME AYUDAN CON ESTO AUQUE SEA PLIS
Answer:
son 2 sucesiones si ves u a va subiendo y otra ba bajando
Select the correct option from the menu.
Raj determined that the equation 3 (x+3) = 8 - 5x +7 is equivalent to 9 = 7. This means that this equation has:
no solutions
One solution
Two solutions
Infinity many solutions
Answer:
no solutions
Step-by-step explanation:
rachel is 1.35 m tall her friend pita is 179 cm tall who is taller and by how much give your answer in centimeters
Answer:
Pita, by 44 cm
Step-by-step explanation:
1,35 m = 135 cm
179 cm > 135 cm, so Pita is taller than Rachael
The difference is:
179 cm - 135 cm = 44 cm
Using the data from the table, which statements are correct?
A)
The ratio of Y is consistent.
Х
G
B)
The ratio of Y is not consistent.
Х
C)
The table represents a proportional relationship.
D)
The table does not represent a proportional relationship.
E)
The graph of the data shown on the table is a straight line.
Answer: The table represents a proportional relationship.
-Let g(x) be a function defined by g(x) = x3.
a) Sketch the graph of g(x).
b) Find the inverse g-1(x) of g(x) then sketch the graph of g-1(x). c) Specify the domain and range of g(x) and g-1(x).
d) Determine the end behavior of g(x) and g-1(x).
Answer:
Step-by-step explanation:
a) The graph rises steeply from the third quadrant and there is a point of inflection through the origin (0, 0) then rises steeply in quadrant 1.
b) Let y = g(x) = x^3
x = ∛y
So g(-1)x = ∛x.
The graph is the reflection of g(x) in y = x.
c) Domain of g(x) = All real x, Range is all real g(x).
Domain of g(-1)x = All real x, Range = all real g-1(x).
d) You will see the end behaviour from the graphs.
I tried to send you a link to the graphs but the system wont allow it.
2x + y = 7
-2x - y = 6
Solve systems of equations by substitution
Answer:
No solution.
Step-by-step explanation:
2x + y = 7
-2x - y = 6
From the first equation:
y = 7 - 2x
Plug this into the second equation:
-2x - (7 - 2x) = 6
-2x + 2x = 6 + 7
0 = 13
this doesn't make sense so theer is:
No solution.
If the markup rate is 50%, then the cost of a shirt that regularly sells for $60 is $40. true or false?
Answer:
false
Step-by-step explanation:
half of 60 dollars is 30
think of it as half of 6
Find the circumference of the circle.
4 mi
Find The circumference
(Type an exact answer in terms of pie)
Answer:
Circumference of a circle-
2 x Pi x Radius
2x Pi x 4
8Pi
ANSWER-8Pi
Hope it Helps!!
Which of the following graphs is the solution set of 2x+7>3?
PLS HELP WILL MARK BRAINLIEST
Answer:
B or the second line
Step-by-step explanation:
1/2x +7 > 3
-7. -7
1/2x > -4
you time 2 on both sides
x > -8
Which of the following is equal to this expression? (256⋅64)^1/4
Answer:8•4 √4
Step-by-step explanation:
HELPP I NEED THIS BY 2:30
The second angle of a triangle is 7 more than twice the first angle. The third angle is 3 less than the first. Find all
three angles if the sum of their angles is equal to 180°. (Let x = the measure of the first angle)
Answer:
44, 95, and 41
Step-by-step explanation:
[tex](x) + (2x +7)+(x-3)=180\\4x +4 = 180\\4x = 176\\x = 44[/tex]
which graph correctly represents the inequality x - 3y ≥ 6
F. none of them
Answer:
F is the answer lol bye okay A
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*..
IM GIVING 40 POINTS !! DONT SKIP :((.
Answer:
y = 1x - 2
Step-by-step explanation:
Answer:y=x-2
Step-by-step explanation:
each y is the x number with 2 taken away
Help me answer question 2
Answer:
x + x + x
Step-by-step explanation:
We have 3y and are asked to express it equivalently with the answers provided.
I will go over the flaws of each answer and single it down to the correct one.
x * x * x would equal x^3, since this is being multiplied.
x^3 is equal to x * x * x, therefore it is not correct.
x + 3 is not correct because you cannot add numbers or variables that are not like terms, so it would not equal to 3y.
x + x + x would equal to 3y because they are all like terms and do not form exponents.
If bananas are $0.50 each, how much would it cost for 7 bananas?
Answer:
Step-by-step explanation:
total cost = unit cost times number purchased:
total cost = ($0.50/banana)(7 bananas) = $3.50 for 7 bananas
Answer: $3.50
Step-by-step explanation:
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*..
IM GIVING 40 POINTS !! DONT SKIP :((.
Answer:
y = -16x + 16
Step-by-step explanation:
You can write a linear equation by getting the slope (m) and y-intercept (b).
To get the slope, you have to (y2 - y1) / (x2 - x1).
Which in this case, I'm going to used points (0,16) and (1,0).
So,
(0 - 16) / (1 - 0) = -16 / 1 = -16
m = -16
Now since we have the slope, the equation would look like y = -16x + b
You then have to input any x and y points (I'm going to use 1,0).
0 = -16(1) + b
0 = -16 + b
b = 16
Put this all together,
y = -16x + 16
Hope this helps :)
Let me know if there is any mistakes!!
Answer:
y = -16x + 16
Step-by-step explanation:
Find the area of the shaded region.
4cm
5cm
step by step plz
Here's the same answer I got on my question that you so helpfully "answered":
uhvvcefjjydchtrrsxikngg
Will make 1st answer brainleist
Answer:
3.1
Step-by-step explanation:
Answer:
3.1
Step-by-step explanation:
4.7(5) - 6.8(3) =
23.5 - 20.4 =
3.1
In the evening, a water tank contained 30cm of water. A few days later, it contained 21 cm of water. Ahmed claims that there is a 30% decrease. is Ahmed correct
answer this for me pls
Answer:
Slope = 2
Step-by-step explanation:
Find the slope by using the slope equation:
[tex]\frac{y^2 - y^1}{x^2 - x^1}[/tex]
Plug in the numbers to the slope equation:
[tex]\frac{8 - (-8)}{2 - (-6)}[/tex]
Which is equal to:
[tex]\frac{16}{8}[/tex]
Which is simplified to:
2.
A number line going from 1 to 13. 1 dot is above 1. 3 dots are above 2. 1 dot is above 3. 3 dots are above 4. 1 dot is above 5. 0 dots are above the remaining numbers. If a new data point at 12 is added to the graph, which will be true? The mean will increase, and the median will stay the same. The median will increase, and the mean will stay the same. The mean will increase more than the median, but both will increase. The median will increase more than the mean, but both will increase.
Answer:
Answer: C) The mean will increase more than the median, but both will increase.
Step-by-step explanation:
I got it right on the test review.
Answer:
just took the test the answer is C)
Step-by-step explanation:
Solve for x. Enter the solutions from least to greatest.
(2+8)^2 – 2 = 0
lesser x =
greater x =
Answer:
the answer to this question is 98=0
Write the formula for slope, for the point-slope
form of a line, and for the slope-intercept form of a
line.
If y varies directly as x and y =6 when x =2 ... find y when x=9
Answer:
27
Step-by-step explanation:
y = kx, where k is the constant of proportionality. If x = 2 and y = 6, that constant is determined as follows:
6 = k(2), or k = 3. Then y = 3x. When x = 9, y = 27