Answer:
The distribution of sample means consist of the set of means of all the possible random samples of a specific size(n) from a specific population
Consider the line y=2/5-4/3x what is the slope of a line perpendicular to this line
The product of the slopes of this line and the line perpendicular to it is equal to -1.
Note that the slope if the coefficient of x.
Let
[tex] \alpha [/tex]
be the slope of the given line.
Let
[tex] \beta [/tex]
be the slope of the line perpendicular to it.
I can therefore say,
[tex] \alpha \times \beta = - 1[/tex]
[tex] \frac{ - 4}{3} \times \beta = - 1[/tex]
[tex] \beta = \frac{ - 1}{ \frac{ - 4}{3} } [/tex]
[tex] \beta = \frac{ - 3}{ - 4} = \frac{3}{ 4} [/tex]
The slope is 3/4
Help me please I will mark BRAINLIEST
Answer:
a) most students got a better grade on the second page than the first. which makes it positive
b) the pupil could've gotten a 61% score
Step-by-step explanation:
which statement are true about the following diagram as labeled
Answer: Triangle ADB is congruent to CBD
Step-by-step explanation:
S1: Try to measure the sides to look alike.
S2: Compare your answers to someone in your class!!!
Through the points (-4,2) and (-7,-7) hurrrryyy!!!!!!
Answer:
(-9,4)
Step-by-step explanation:
The six game games Kelly's team played took a total of 7 hours. They took 420 minutes to play all six games. if each game lasted the same amount of time,how many minutes did each one last?
What is 2/z+3\z^2
If z= -1/4
Answer:
40
Step-by-step explanation:
Given :-
z = -1/4
Inputting the values :-
2/z + 3/z²
2/(-1/4) + 3/(-1/4)²
(2 x -4) + (3 x 16)
-8 + 48
= 40
Solution :-
40
Answer:
40
Step-by-step explanation:
[tex]\dfrac{2}{z}+\dfrac{3}{z^2}[/tex]
[tex]\textsf{if} \ z=-\dfrac14[/tex]
[tex]\implies \dfrac{2}{-\frac14}+\dfrac{3}{(-\frac14)^2}[/tex]
[tex]\implies -\dfrac{2}{\frac14}+\dfrac{3}{\frac{1}{16}}[/tex]
[tex]\implies -2 \times 4+3 \times 16[/tex]
[tex]\implies -8+48[/tex]
[tex]\implies 40[/tex]
What is the surface area of this figure?
Enter your answer in the box.
ft²
Complex solid composed of a triangular prism and a rectangular prism. The triangular prism is centered on the top of the rectangular prism. The rectangular prism bottom face is labeled 18 ft and 6 ft. The height of the rectangular prism is labeled 9 ft. The triangular base has an altitude drawn and labeled 8 ft. The sides of the triangle are labeled 10 ft, 10 ft, and 12 ft. The height of the triangular prism is 6 ft.
The total surface area of the figure is 862ft²
How to calculate the surface area of a figureThe composite figure is made up of a pyramid and prism
Surface area of pyramid = 2(13*9) + (10*9) + (10*12)
Surface area of pyramid = 234 + 90 +120
Surface area of pyramid = 444ft²
For the rectangular prism
Surface area = 2(11*9) + 2(10 * 11)
Surface area = 198 + 220
Surface area = 418ft²
Surface area of figure = 444 + 418
Surface area of figure = 862ft²
Hence the total surface area of the figure is 862ft²
Learn more on surface area here: https://brainly.com/question/20771646
An archer hits a target 50% of the time. What is the experimental probability that the archer hits the target exactly four of the next five times?
Answer:
40/50
Step-by-step explanation:
That’s the probability of him hitting them
Answer:
5/32 or 15.625
Step-by-step explanation:
I don't remember how I got the answer but it was just in my notes as the answer so yea. :]
hey guy can you help me with this
Answer:
C. y = 1/8x
D. y = x - 133
Step-by-step explanation:
In order to find the answer, you have to think about the answer choices
A. is saying that if you multiply 152 by 8, you will get 19 which is definitely not true
B. is saying that y is equal to 152/133 which is not true since 152/133= 8/7 which is some wacky decimal
C. would make sense because if you divide 152 and 8, you will get 19
Which makes the equation true because if you multiply 1/8 by 152/1, you get 152/8 which simplifies to 19 which satisfies the equation
D. This would also make sense since 152-133=19
So at the end, we can come to a conclusion that:
C. and D. are the equations that satisfy the relation
Find the rule to solve for N. X,5,6,n,10 Y,20,24,32,40
Answer:
Step-by-step explanation:
Consider what y values you are getting by letting x = 5 and then letting x = 6.
when x = 5 , y = 20
y = m*5
20 = m*5 Divide by 5
20/5 = m/5
4 = m
when x = 6 y = 24
y = mx
24 = m*6 Divide by 6
24/6 = m
m = 4
So now we can be sure of our solution for x when y = 32
y = m*n
32 = 4*n Divide both sides by 4
32/4 = 4*n/4
n = 8
Answer: n = 8
Function or not?please heeeeeelp
Answer:
not a function
Step-by-step explanation:
the vertical line test. if you can put a vertical line on the graph that goes through two points on the parrabola it is not a function
Which situation is represented by the equation 12 x 6 =
Answer:
60
Step-by-step explanation:
A man purchase 5 dozen banana , find equation to find total number of banana and how many banana he have.
Total number of banana = 12 x 6
Total number of banana = 60
What is the perimeter of a rectangle with a length of 3x-2 width 2x-8
Answer:
P = 5x - 10
Step-by-step explanation:
The perimeter is:
P = L + w
L = 3x - 2
w = 2x - 8
P = 3x -2 + 2x - 8
P = 5x - 10
To know the exact value we need to know the value of x or the solve of one of the expressions above.
Which are the partial products for 72x4? Select all that apply.
Answer:
288
this 8s because 72 x 4 is 288 2x4 is 8 and 4x72 is 28 so the answer is 288
Kristen and Ben are making a poster that is 1 1/3 yard by 2 1/3 yard. What is the area of the poster?
A. 1 1/9 yd2
B. 3 1/9 yd2
C. 1 1/3 yd2
D. 9 1/3 yd2
Answer:
B
Step-by-step explanation:
[tex]1\frac{1}{3}\times2\frac{1}{3}\\= \frac{4}{3}\times\frac{7}{3}\\= \frac{28}{9}\\= \frac{27+1}{9}\\=\frac{27}{9}+\frac{1}{9}\\=3+\frac{1}{9}\\=3\frac{1}{9}[/tex]yd²
A circle has a radius of 11 mm. What is its circumference?
Answer:
≈ 69.08mm
Step-by-step explanation:
The circumference of a circle can be found with the formula:
[tex]C=2$\pi$r[/tex], where r is the radius of the circle.
Let's solve for the circumference.
[tex]2*3.14=6.28[/tex]
[tex]6.28*11=69.08[/tex]
Therefore, the circumference is 69.08
#LearnWithBrainly
What is the missing base of 9=____ to the power of 2?
Answer: 3
Step-by-step explanation:
Let x be the missing base. In this case, base to the power of 2 means this number x times itself will equal 9.
9 = [tex]x^{2}[/tex]
[tex]\sqrt{9}[/tex] = [tex]\sqrt{x^{2} }[/tex] [use square root to cancel the power of 2].
[tex]\sqrt{9}[/tex] = x
x = 3
Check: [tex]3^{2}[/tex] = 3 x 3 = 9
x+3y=15 what is the slope
Answer:
slope = -1/3
Step-by-step explanation:
x+3y=15
-x 3y=-x+15
divide by 3 y= -1/3x -5
Winston has just gone grocery shopping. The mean cost for each item in his bag was $3.24. He bought a total of 5 items, and the prices of 4 of those items are listed below:
$4.55,$2.53,$2.82,$4.66
Determine the price of the 5th item in his bag.
Answer:
$1.26
Step-by-step explanation:
total: 16.2 (3.24 * 5)
4.55 + 2.53 + 2.82 + 4.66 = 14.56
16.2 - 14.56 = 1.26
The price of the fifth item in W's bag is $1.55 if the mean price of all five items is $3.24.
A mean is one of the measures of central tendencies and is the average value of a group of observations. It is the ratio of the sum of all observations to the total number of observations.
The prices of the 4 items out of the 5 items W has bought are given as follows:
$4.55, $2.53, $2.82, $4.66
It is also given that the mean cost for each item is $3.24.
Let the price of the fifth item be x, then according to the question;
[tex]\dfrac{ 4.55+ 2.53+2.82+4.66+x}{5} = 3.24\\14.65 + x = 3.24 \times 5\\14.65 + x = 16.2\\x = 1.55[/tex]
Therefore, the price of the fifth item in the bag is $1.55.
Learn more about Mean here:
https://brainly.com/question/31101410
#SPJ3
Find the total surface area of the pyramid. 4 in. Bx X3.140 10 in.
Answer:
Step-by-step explanation: height h =
slant height s =
side length a =
perimeter of base P =
lateral edge length e =
1/2 side length r =
volume V =
lateral surface area L =
base surface area B =
total surface area A =
Get a Widget for this Calculator
Square Pyramid Shape
Pyramid Diagram with h = height, l = length and w = width and s = slant height
h = height
s = slant height
a = side length
P = perimeter of base
e = lateral edge length
r = a/2
V = volume
L = lateral surface area
B = base surface area
A = total surface area
Calculator Use
This online calculator will calculate the various properties of a square pyramid given 2 known variables. The square pyramid is a special case of a pyramid where the base is square. It is a regular pyramid with a square base.
Units: Note that units are shown for convenience but do not affect the calculations. The units are in place to give an indication of the order of the results such as ft, ft2 or ft3. For example, if you are starting with mm and you know r and h in mm, your calculations will result with s in mm, V in mm3, L in mm2, B in mm2 and A in mm2.
NAN: means not a number. This will show as a result if you are using
what two numbers add to 6 and multiply to -5?
Find 30% of 279.
A. 83.7
B. 84.69
C. 85.50
D. 86.49
Answer:
B - 84.69
Step-by-step explanation:
The answer is b because you have to multiply 7 by 12 then you'll get 84
Answer:
A
Step-by-step explanation:
because you have to multiple 7 by 12 then you will get 84.70
Please help I need an answer quick too!!!!
Hep math math math math
Answer:
c
Step-by-step explanation:
basic theory, can't explain further.
Answer: y=6
Step-by-step: 2(−6)+3=18 distributed into 2−12+3=18
Next, Combine Like Terms.
2−12+3=18
5−12=18
Wait oh, you wanted the. Oh. Well the distribution of it is 2y-12+3y=18. Sorry!
3. The area of this trapezoid is 25.5 ft.
3.2 ft
7 ft
What is the height of the trapezoid? Show your work.
Answer:
Answer:
5 ft
Step-by-step explanation:
You can find the missing dimension by using the area formula and solving it for the missing dimension.
__
A = 1/2(b1 +b2)h . . . . . . . . . . . . formula for the area of a trapezoid
25.5 ft² = 1/2(7 ft +3.2 ft)h . . . . with the given numbers filled in
(25.5/5.1) ft = h = 5 ft . . . . . . . . . divide by the coefficient of h
The height of the trapezoid is 5 ft.
What happens if I fail a state test in the 9th grade?
Answer:
You will be remembered as a bad student who failed a state test in 9th grade!
Hope it helps!
Answer:
It depends on the grade or school some schools let you retake the test if you fail it you might fail that class and take the same class for 10th
Step-by-step explanation:
Fill in the blank to complete the sentence.
Jessie has 2 containers.
The first container has a capacity of 2 gallons.
The second container has a capacity of 9 quarts.
What is the difference in the capacity of the two containers? Give your answer in cups.
a. The difference in the capacity of the two containers is___cups
HELP ASAP
Answer:
they have a difference of 4 cups.
Step-by-step explanation:
container one: 1 gallon = 16 cups. 2 gallons = 32 cups.
container Two: 1 quart = 4 cups. 9 quarts = 36 cups.
36 cups - 32 cups = 4 cups
(23 – 4x2 + 6x – 4) = (x - 2)
Answer:
is it 150?
Step-by-step explanation:
40 is what percent of 20
Answer:
200%
Step-by-step ex
Answer:
200%
Step-by-step explanation:
x% of 20 = 40
x/100 × 20 = 40
x/10 × 2 = 40
x/5 = 40
x = 40×5
x = 200
Which is a factor of the polynomial f(x) = 6x4 – 21x3 – 4x2 + 24x – 35?
2x – 7
2x + 7
3x – 7
3x + 7
Answer:
first option
Step-by-step explanation:
i just took the test on edge.
The factor of the polynomial [tex]f(x) = 6x^4 - 21x^3 - 4x^2 + 24x - 35[/tex] is (a) 2x - 7
The polynomial function is given as:
[tex]f(x) = 6x^4 - 21x^3 - 4x^2 + 24x - 35[/tex]
To determine if 2x - 7 is a factor, we start by setting it to 0
[tex]2x - 7 = 0[/tex]
Add 7 to both sides
[tex]2x = 7[/tex]
Divide both sides by 2
[tex]x =3.5[/tex]
Substitute 3.5 for x in f(x)
[tex]f(3.5) = 6(3.5)^4 - 21(3.5)^3 - 4(3.5)^2 + 24(3.5) - 35[/tex]
[tex]f(3.5) =0[/tex]
Because f(3.5) equals 0, then 2x - 7 is a factor of the polynomial
Read more about polynomial factors at:
https://brainly.com/question/2416165