Answers
Step-by-step explanation:
The inverse of matrix V the one in answer B
Related Questions
4 1/8 take away 1 1/2
Answers
If a car's cost, when new, is
$15,000, the rate of
depreciation is 30%, how
much will the car be worth in
6 years?
Answers
Answer:
$27 000
Step-by-step explanation:
15 000*30*6÷100
=$27 000
Foresters want to estimate the average age of trees in a stand. Determining age is cumbersome, because one needs to count the tree rings on a core taken from the tree. In general, though, the older the tree, the larger the diameter, and diameter is easy to measure. The foresters measure the diameter of all 1132 trees and find that the population mean equals 10.3. They then randomly select 20 trees for age measurement
Answers
Answer:
hello your question has some missing information attached below is the missing information
answer : mean ratio of estimate = 117.62
standard error ( SE ) = 3.9765
Step-by-step explanation:
Given data : n = 20, μx = 10.3 , N = 1132
∑ age ( yi) = ( 125 + 119 + --------- + 99 ) = 2148
∑ ( Y - rX)^2 = 6116.728
mean of age ( y ) = ∑ y / 20 = 2148 / 20 = 107.4
mean of diameter ( x ) = ∑x /20 = 188.1 / 20 = 9.405
∴ ratio estimate = y /x = 107.4 / 9.41 = 11.4195
i) The mean of ratio estimate
= 11.4195 * μx = 11.4195 * 10.3 = 117.6204
ii) determine the standard error ( SE )
calculate ; [tex]s^{2} _{r}[/tex] = 1 / ( n-1 ) * ∑ (Y - rX)^2 = 1/19 ( 6116.728 ) = 321.933
Var ( μr ) = [ ( N - n ) / N*n ]*[tex]s^{2} _{r}[/tex] = [ ( 1132 - 20 ) / (1132*20) ] * 321.933
= 15.81226
therefore the SE = √15.81226 ≈ 3.9765
12r^2-11r-15=0 solve the equation for all real solutions
Answers
A=12 B=11 C=15
set up as
-11 (+,-) 11^2-12(15)
‐---------------------------
2(11)
there will be two answers exactly the same except one will be (+) & the other will have (-)
five billion, twenty-four million, five and six thousandths
Answers
Answer:
5,024,000,005.006
Step-by-step explanation:
This is the standard form of five billion, twenty-four million, five and six thousandths.
One apple costs .55 at the grocery store. Customers recieve one free apple for every 8 apples they buy
Answers
Answer:
Need more info
Step-by-step explanation:
What are we trying to figure out here?
P.S. I am not collecting the Brainly points, I will fix my answer once you fix the question! Thanks!
The length of a desk top is 4 feet. How many inches is the length of the desktop?
Answers
Answer:
ohh wait i read the question wrong yeah the person below me is correct
Step-by-step explanation:
12*4= 48 inches.
Raymond bought wrapping paper that cost
$0.04 per square inch. How much did it cost to
wrap this box.
Answers
Answer: $46.08
Step-by-step explanation:
Find the surface Area of the box
the bases are 12*12= 144 times 2 bases 144*2= 288
The area of each side is 12*18=216 times 4 sides 216*4=864
add the totals together to find the total surface area 288+864=1152
total surface area is 1152 inches. Multiply by the cost per square inch
1152*.04= 46.08
Which of the following ordered pairs could be the y-intercept of a function?
(16, 0)
(0, 12)
(-2, 2)
(-4, 0)
Answers
Help me and give me the answer please no scammers
Answers
Answer:
r = 84
Step-by-step explanation:
2pir
2(3)(14)
6(14)
84
Conduct the following test at the level of significance by determining (a) the null and alternative hypotheses, (b) the test statistic, and (c) the P-value. Assume that the samples were obtained independently using simple random sampling. Test whether . Sample data are , , , and . (a) Determine the null and alternative hypotheses. Choose the correct answer below. A. versus B. versus C. versus Your answer is correct.D. versus (b) The test statistic is nothing. (Round to two decimal places as needed.)
Answers
Answer:
Hello your question is poorly written the complete question is attached below
answer :
a) H0 : p1 = p2
Ha : p1 ≠ p2
b) Z = -0.58
c) P-value = 0.561915
d) we will reject the Alternative hypothesis
Step-by-step explanation:
For sample 1 ; n1 = 254 , x1 = 28
For sample 2 ; n2 = 301 , x2 = 38
level of significance ∝ = 0.01
P1 = X1 / n1 = 28 / 254 = 0.1102
P2 = X2 / n2 = 38 / 301 = 0.126
a) Determine the null and alternate hypothesis
H0 : p1 = p2
Ha : p1 ≠ p2
b) Determine Test statistic
we perform a Z-statistic to test the hypothesis
Z = [tex]\frac{p1-p1 }{\sqrt{( p(1-p)*(\frac{1}{n1}+\frac{1}{n2}) ) } }[/tex] -------- ( 1 )
p = ( x1 + x2 ) / ( n1 + n2 )
= ( 28 + 38 ) / ( 254 + 301 ) = 0.1189
Where: p = 0.1189 , p1 = 0.1102 , p2 = 0.126 ( input values into equation 1 )
∴ Z = -0.58
c) Determine P-value
P-value = 0.561915 ( using excel function )
d) conclusion : since p-value > 0.01 ( level of significance ) we do not reject the null hypothesis. therefore it proves that p1 = p2
x = -80538738812075974, y = 80435758145817515, and z =
Answers
Answer:
Step-by-step explanation:
Bert draws a card from a deck of cards and Ernie rolls a six sided die at the same time.
Compute the probability that Bert gets a King and Ernie rolls a twenty.
SIMPLIFY AND GIVE THE FINAL ANSWER.
Answers
,Thank you
WILL GIVE BRAINLIEST (URGENT)
Answers
Answer:
C
Step-by-step explanation:
Answer:
C 1/5 is the coorect answer
Step-by-step explanation:
State the Limits Rule and explain what it means
Answers
Answer:
The limit of a sum is equal to the sum of the limits.
Step-by-step explanation:
The limits of a constant times a function is equal to the constant times the limit of the function.
help me..................
Answers
Answer:
while looking ata number for example 1234, 1 is the thousands place 2 is the hundreds place 3 is the tenths place and 4 is the ones place
Step-by-step explanation:
1 is the thousands place because 1234 is a number consisting of 1000 so 1 in 1234 is the thousnads place and if we keep going youll see that its pretty easy from there
Help! Use the equation machine to solve this equation.
x = ___.
1. -2
2. 2
3. -5
4. 5
Answers
Answer:
All you do is subtract 5 from 7 which is to.-.
Step-by-step explanation:
Hope that helps:)
The solution is Option B.
The value of the equation is x = 2
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
Substituting the values in the equation , we get
x + 5 = 7 be equation (1)
On simplifying the equation , we get
Subtracting 5 on both sides of the equation , we get
x = 7 - 5
x = 2
Therefore , the value of x is 2
Hence , the equation is x = 2
To learn more about equations click :
https://brainly.com/question/19297665
#SPJ6
HELP! WILL GIVE BRANLIEST
Answers
Answer:
X=11
Z=73
Step-by-step explanation:
So vertical angles are equal so to find X
107=12x-25
Solve the equation
x=11
4 angles are 360 degrees, we know 2 angles.
107+107= 214
360-214= 146
146 is the two angles added up, divide them by 2 to find each side
146/2= 73
Z=73
Remy has 4 monster trucks, 3 fire trucks, 1 ambulance, and 2 taxis he will randomly choose one from his toy box
What is the probability that remy will choose a taxi?
A 1/10 b 1/5 c 2/4 D 1/3
Answers
Answer:
Your answer should be A forgive me if i am wrong.
Step-by-step explanation:
Find the area of each figure answer asap
Answers
For the equation, complete the given ordered pairs.
3x-y=4
{0,_} [1,_} {_,4}
Answers
Hi
3x-y = 4
so y = 4-3x = -3x +4
now you just have to remplace X by the first number given.
for 0 you have : y = -3*0 +4 = 4
so it's 0; 4
I let you do the others. No difficulties.
A shopping center includes a grocery store and a drug store. One afternoon, a total of 200 people visited the shopping center, and 121 shopped at the grocery store, 91 shopped at the drug store, and 33 shopped at both businesses. a) How many people shopped at the grocery store or the drug store? b) How many people shopped at neither the grocery store nor the drug store?
Answers
9514 1404 393
Answer:
a) 179
b) 21
Step-by-step explanation:
When making a Venn diagram for a problem like this, it often works well to fill in the "both" quantity first. Then that is subtracted from the number for grocery to find "grocery only", and from the number for drug store to find "drug store only." The sum of the numbers inside the circles (88+33+58) is the number who shopped at the grocery or drug store. The number who shopped at neither is the difference between this number and the total number of shoppers (200-179).
2. What is the value of x? (y + 2.3) cm K G 7 cm (2.5x) H A. O 60 B. O 72 C.O 30 D.O 24
Answers
Answer:
ITS B SORRY CAPS
Step-by-step explanation:
: If m∠2=85.1° m ∠ 2 = 85.1 ° , then what is m∠4 m ∠ 4 ?
Answers
Answer:
In what figure?
I cannot determine the answer without proper information.
Which describes the effect of the transformations on the graph of f(x) = x? when changed to f(x) = - (x - 2) + 3?
Answers
Answer:
Strerch by factor of 5 on y-axis.
Shift by 4 to the left on x-axis.
Shift by 6 up the y-axis.
Hope this helps.
Step-by-step explanation:
Find the dimensions and maximum area of a rectangle if the perimeter is 52
Answers
Answer: l
=
16
,
b
=
10
Explanation:
Step-by-step explanation:
Perimeter of rectangle is
p
=
2
(
l
+
b
)
=
52
,
l
is length and
b
is breadth.
Area of rectangle is
A
=
l
⋅
b
=
160
∴
l
=
160
b
;
∴
2
(
160
b
+
b
)
=
52
or
(
160
b
+
b
)
=
26
or
160
+
b
2
b
=
26
or
160
+
b
2
=
26
b
or
b
2
−
26
b
+
160
=
0
or
b
2
−
16
b
−
10
b
+
160
=
0
or
b
(
b
−
16
)
−
10
(
b
−
16
)
=
0
or
(
b
−
16
)
(
b
−
10
)
=
0
∴
b
=
16
or
b
=
10
If
b
=
16
;
l
=
160
16
=
10
and if
b
=
10
;
l
=
160
10
=
16
The dimension of rectangle is
l
=
16
,
b
=
10
[Ans]
4) What is the total cost (tax and price) on a purchase of $108.50 if the sales tax is 8%?
D) $195.30
A) $86.50
B) $8.68
C) $117.18
Answers
$108.50 X 1.08 = $108.50
PLEASE HELP
Which statement is always true? O A vertex is the intersection of two planes. O An edge is where two planes intersect in a line. O A face is the point where three planes meet. OTwo planes have to intersect each other.
Answers
Answer:
the first one
Step-by-step explanation:
it's the first one
Answer:you will have to split it in half
Step-by-step explanation:
I just did something like this
Brandon is filling a flower bed with soil. The flower bed is shaped like a rectangular prism and measures 15 feet long and 3 feet tall. If it holds 405 cubic feet of soil, how many feet wide is Brandon's flower bed?
Answers
Answer:
9 meters
Step-by-step explanation:
I don't know step by step if jts wrong tell me.
What is the value of the variable x?
Answers
Answer:
x = [tex]\sqrt{2}[/tex]
Step-by-step explanation:
pythagorean theorem:
x² + 2² = ([tex]\sqrt{6}[/tex])²
x² + 4 = 6
x² = 2
x = [tex]\sqrt{2}[/tex]