Answer:
The purpose is to increase the generalizability of the results. By drawing a random sample from a larger population the goal is that the sample will be representative of the larger group and less likely to be subject to bias
Step-by-step explanation:
Answer:
Step-by-step explanation:
The purpose is to increase the generalizability of the results. By drawing a random sample from a larger population the goal is that the sample will be representative of the larger group and less likely to be subject to bias
OMLLLL PLS HELP LOLLL OMG!
Diana invests $4000 for two years at a rate of 2.5%. How much interest will she earn?
a
$200
b
$4200
c
$20
d
$2,000
Answer:
D: $2,000
Step-by-step explanation:
If im wrong contact me at Mousycritter#2842 on discor.d if you seek more help
help ASAP show the work, no links pleaseee
Answer:
x = 28
Step-by-step explanation:
AB= AC
∠B = ∠C {Angles opposite to equal sides are equal}
∠A + ∠B + ∠C = 180 {angle sum property}
3x + x + 20 + x + 20 = 180 {Combine like terms}
3x +x +x + 20 + 20 = 180
5x + 40 = 180 {subtract 40 from both sides}
5x = 180 - 40
5x = 140 {divide both sides by 5}
x = 140/5
x = 28
Find the missing value
- 8 + 6 = - 2
Step-by-step explanation:
-2 = [-8] + 6
-TheUnknownScientist
A map has a scaling that 5cm = 2km.
How many kilometers are represented by 2cm?
Answer:
0,8 km
Step-by-step explanation:
5cm= 2km
2cm=x
x=2 km × [tex]\frac{2cm}{5cm}[/tex]=0,8 km
answer for brainlest and 10 points
Answer: Rational
Explanation:
Any number that can be written as a fraction or mixed number is rational.
57.63004 can be written as [tex]57\frac{63004}{100000}[/tex] , therefore it is rational.
Help asap PLZZZZZZZZZZZZ
A 16-inch diameter (8-inch radius) car tire is one of the most popular sizes for today's car Find the number of revolutions made by a tire with a radius of 8
inches that travels 5,280 feet (or 1 mile). Use 3.14 for Round your answer to the nearest tenth of a revolution.
Answer:
1261.1 revolutions
Step-by-step explanation:
Given
[tex]d = 16in[/tex] --- the diameter
[tex]Distance = 5280ft[/tex]
Required
The number of revolution completer
First, calculate the circumference (c) of the tire
[tex]c = \pi d[/tex]
[tex]c = 3.14 * 16[/tex]
[tex]c = 50.24[/tex]
Let the number of revolutions be n.
The product of n and the circumference equals to the total distance travelled.
So:
[tex]c * n = 5280 ft[/tex]
[tex]50.24in* n = 5280 ft[/tex]
Make n the subject
[tex]n = \frac{5280 ft}{50.24in}[/tex]
Convert feet to inch
[tex]n = \frac{5280 *12in}{50.24in}[/tex]
[tex]n = \frac{63360in}{50.24in}[/tex]
[tex]n = \frac{63360}{50.24}[/tex]
Solve for n
[tex]n = 1261.14649682[/tex]
Approximate
[tex]n = 1261.1[/tex]
Pls I need help someone pls help me
In ⊙Q, mJK=180° and mLM=116°. What is m∠1?
Answer:
32
Step-by-step explanation:
180+116= 296
360-296= 64
64/2= 32
1. $350 at 5% for 4 years
Answer:
285 $
Step-by-step explanation:
350 * [tex]0.95^4[/tex]
0.95 if the amount of money is going down if the amount of money is going up it will be 350 * 1.05^4
If it is decreasing subtract 5% from 100% and if its increasing add 5% to 100%.
Answer:
I around up: the anwer I got was 425.43
Step-by-step explanation:
expand the following (4/5d - 7e)2
Answer: [tex]\dfrac{16d^2}{25}+49e^2-\dfrac{56de}{5}[/tex]
Step-by-step explanation:
Given
The expression is
[tex](\dfrac{4d}{5}-7e)^2[/tex]
Use identity [tex](a-b)^2=a^2+b^2-2ab[/tex]
Apply identity
[tex]\Rightarrow \left( \dfrac{4d}{5}-7e\right)^2=\left( \dfrac{4d}{5}\right)^2+(7e)^2-2\times \left( \dfrac{4d}{5}\right)(7e)\\\\\Rightarrow \left( \dfrac{4d}{5}-7e\right)^2=\dfrac{16d^2}{25}+49e^2-\dfrac{56de}{5}[/tex]
Una recta con pendiente -2 ´pasa por el punto P(5, -1). La abscisa del punto Q que está en esa recta es 1. Encuentre la ordenada de Q.
Answer:
La ordenada de Q es 7.
Step-by-step explanation:
La ecuación de una recta es:
y = a*x + b
donde a es la pendiente y b es la ordenada al origen.
Para este problema, sabemos que la pendiente es -2
Entonces:
a = -2
y = -2*x + b
También sabemos que esta recta pasa por el punto (5, -1)
Esto significa que cuando evaluamos la ecuación en x = 5, y toma el valor y = -1
Si reemplazamos esos valores en la ecuación, obtenemos:
-1 = -2*5 + b
-1 = -10 + b
-1 + 10 = b
9 = b
Entonces la ecuación de la recta es:
y = -2*x + 9
Sabemos que el punto Q está en la línea, y la abscisa de este punto es 1.
Entonces este punto es Q (1, k)
donde k es la ordenada de este punto.
Porque nuestra línea también pasa por este punto, podemos concluir que cuando x = 1, y = k
Reemplazando eso en la ecuación tenemos:
k = -2*1 + 9 = -2 + 9 = 7
k = 7
La ordenada de Q es 7.
Find the distance between the two points.
Answer:
[tex]\sqrt{61}[/tex]
Step-by-step explanation:
Calculate the distance d using the distance formula
d = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }[/tex]
with (x₁, y₁ ) = (- 2,- 4) and (x₂, y₂ ) = (4, 1)
d = [tex]\sqrt{(4-(-2))^2+(1-(-4))^2}[/tex]
= [tex]\sqrt{(4+2)^2+(1+4)^2}[/tex]
= [tex]\sqrt{6^2+5^2}[/tex]
= [tex]\sqrt{36+25}[/tex]
= [tex]\sqrt{61}[/tex]
write 3^n / 9^n-1 as a power of 3
Answer:
(1/3)³ = 1/27
Step-by-step explanation:
(3^n / 9^n-1)^3 =
3^3n / 1 x 1 / 9^3n-3 =
(1/3)^3 = 1/27
A number line shows 114, −224, and −134. Which statement is NOT true?
Answer:
1/1/4<−2/2/4, because 1/1/4 is located to the right of −2/2/4 on the number line.
Step-by-step explanation:
Find the area of each parallelogram. 1. I 18 ft 16 ft
Answer:
Area is 288.
To find the area of a shape you have to multiply. 18 x 16 = 288.
10 POINTS!! NO LINKS!! I WILL REPORT BUT HELP A GIRL OUT PLSSS If the standard deviation of a data set were originally 4, and if each value in
the data set were multiplied by 1.75, what would be the standard deviation of
the resulting data?
7
4x1.75 is 7
im not the smartest so wait for more answers just in case
If all three sides of a triangle have length x, what is the perimeter of the triangle?
A. x/3
B. x + x + x + x
C. 3x
D. 3 + x
Answer:
C) 3x
Step-by-step explanation:
Perimeter can be defined as side a + side b + side c,
since all sides are x we have
x + x + x = 3x
Rosa grew 6 plants with 2 seed packets. How many seed packets does Rosa need to have a total of 9 plants in her backyard? Assume the relationship is directly proportional.
There are 5 people at a party. They decide to share 3 ice cream sandwiches equally.
Which model shows how much of the ice cream sandwiches each person will get?
C.
D
Answer:
The answer should be B bc there is a fraction of 3 over 5
is this quadrilateral a parallelogram?If yes, state the definition or theorem that justifies your answer.
Answer:
yes
Step-by-step explanation:
yes it is a parallelogram. As we can see it has opposite parallel sides. Opposite angles are equal. If we add another diagonal, the two diagonals will bisect each other.
answer for 30 points and brainilest
the answer choices are
24.81 , $26.48 , 3.83 , 0.62 , $7.61 , $7.60 , $60.48 , $60.47 , 3.85 , 24.79 , $7.75 , 0.61 , $26.47 , 0.66 , 8.33 , $0.95
Answer:
6.4, 17.2, 3.8, 0.5, 6.7, 37.3, 4.9, 0.1, 12.8, 5.0
Step-by-step explanation:
Can anyone help me with this please
No links or I’ll report it .
I’ll mark you as a brainliest.
Answer:
75 sq units
Step-by-step explanation:
A = lw
l = OP = distance between (9, 6) and (0, -6)
= [tex]\sqrt{(9 - 0)^{2} + (6 + 6)^{2} }[/tex]
= [tex]\sqrt{81 + 144)} = \sqrt{225} = 15[/tex]
w = MP = distance between (-4, -3) and (0, -6)
= [tex]\sqrt{(-4 - 0)^{2} + (-3 + 6)^{2} }[/tex]
= [tex]\sqrt{16 + 9} = \sqrt{25} = 5[/tex]
A = 15(5) = 75 sq units
help needed asap will give brainliest
Answer:
the corect answer for this question is (-x,y)
Work out
5
9
−
1
3
Give your answer in its simplest form.
Zeroes of a polynomial can be determined graphically. Number of zeroes of a polynomial is equal to number of points where the graph of polynomial.
2 points
a. intersects y-axis
b. intersects x-axis
c. intersects y-axis or intersects x-axis
d. none of these
9514 1404 393
Answer:
b. intersects x-axis
Step-by-step explanation:
A zero of the polynomial is where y = 0. The equation y = 0 is the equation of the x-axis, so intersections of the graph of the function with the x-axis are places where the function value is zero.
The number of (distinct real) zeros is equal to the number of points where the graph intersects the x-axis.
_____
Additional comment
When (x -p)^n is a factor of the polynomial, the graph will intersect the x-axis at x=p. The zero is said to have "multiplicity n". For odd values of n, the graph will cross the x-axis (change sign) at x=p. For even values of n, the graph will touch the axis at x=p, but will not cross there.
So, the number of intersections with the x-axis tells the number of distinct real zeros, but does not say anything about their multiplicity. Complex zeros will not cause the graph to touch the x-axis.
Hey I need help for this question.!!!
Answer:
I don't know but I really need points I'm so sorryyyyy
The difference between two whole numbers is 99. The ratio of the two numbers is 2:5. What are the numbers?
Let the two whole numbers be 2x and 5x
The difference between 2x and 5x is 99. So,
5x-2x=99
3x=99
x=99/3
x=33
Therefore the two numbers are
5x=5*33=165
2x=2*33=66
Answer:
28:71
Step-by-step explanation:
99/7=14.14285714 (make sure to keep that in the calculator) that equals 1 part.
Therefore,
2×14.14...=28 (round up to nearest whole number)
5×14.14..=71 (round up to nearest whole number)
URGENT PLEASE, I don't know how to do this
Answer:
20x +1
Step-by-step explanation:
do the exponite first. 4X4=16. then add on 4x, 16x+4x=20x, then add on 1
Each of the figures are similar. Find the missing length
Answer:
? = 7 m
Step-by-step explanation:
6/18= ?/21
18? = 126
? = 7