Answer:Step-by-step explanation:
Convenience sampling
Explanation:
It is convenient data for the tv people and has a non zero chance of being selected
Answer: Convenience Sampling
Step-by-step explanation:
The answer is Convenience Sampling (CS) because CS is a sampling technique where the people that vote are easy to reach. And there is no bias since you can't choose the first 50 people are.
box plots show the data distributions for the number of customers who used a coupon each hour during a two-day sale. Which measure of variability can be compared using the box plots? interquar
Answer:
A. Interquartile
Step-by-step explanation:
Answer:
A: interquartile range
Step-by-step explanation:
edg2020
Which of the following equations is equivalent to y-3x =+?
Answer:
C) y-10=3(x-2)
Step-by-step explanation:
Simplify what your starting equation is -> y-3x=4 -> (Simplified to y=3x+4)
When you simplify all the possible answers, the correct answer has to be identical to y=3x+4.
The Following list is all simplified possible answers, the one that is the exact same as y=3x+4 is the right answer.
A)y=3x+10
B)y=3x+7
C)y=3x+4
D)y=-3x+4
Cecelia's monthly mortgage payment is $1,432.26. She calculated the annual property tax on her $300,000 home and determined that it was $6000. What is Cecelia's total monthly payment for the mortgage and property tax? a. $1882.26 b- $1932.26 c- $2032.26 d- $1982.26
Answer:
You provided no correct answer
Step-by-step explanation:
The way to correctly solve this problem is by ignoring the 300,000 dollar home part, and simply add the mortgage and the tax which comes out to 7432.26
Answer:
A
Step-by-step explanation:
Determine the measure of obtuse angle A. answers: A) 130° B) 122° C) 58° D) 7°
Answer:
B) 122 degrees.
Step-by-step explanation:
Consider the kite :- the 2 angles at the tangents are 90 degrees so we have:
9x - 5 + 14x + 24 + 90 + 90 = 360
9x - 5 + 14x + 24 = 180
23x + 19 = 180
23x = 161
x = 7
So the obtuse angle = 14(7) + 24
= 98 + 24
= 122 degrees.
< B is opposite
А. АС
B. AB and BC
C. BC
D. ZC
E. AB
F. ZA
The angle ∠B is opposite AC in the triangle.
Option A is the correct answer.
We have,
From the triangle,
There are three angles:
∠A, ∠B, and ∠C.
And,
The sides opposite to each angle are:
AC is opposite ∠B
AB is opposite ∠C
BC is opposite ∠A
Thus,
The angle ∠B is opposite AC in the triangle.
Learn more about triangles here:
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Please help, this is due in 20 minutes, I need to do other work, please help. 7) Chris pays €18 for a meal, the Exchange rate is £1 = €1.65. What is the price of the meal in pounds? 8) In the USA a jacket costs $96. The Exchange rate is £1= $1.54. How much is the jacket in pounds? 9) In Hungary, Jack pays 874 Forints for a box of chocolates. The Exchange rate is £1= 350 Forints. How much does he pay for the chocolates to the nearest pence? 10) Jan buys a pair of sunglasses in Boots for £12.50. In Portugal the same pair of glasses is €15. If the exchange rate is £1 = €1.12, where are the glasses the cheapest? Show your working.
7)18/1.65=10.9 so the meal cost £10.90
8)96/1.54=62.3376623377 so the jacket cost £62.38
9)874/350=2.497142857 so it cost £2.49
10)15/1.12=13.3928571 meaning the pair of sunglasses in Portugal costs £13.39 so it is cheaper to buy the glasses in boots
Naomi fish is 40 millimeters a humid pig is 25 centimeters long how much longer is the humid pig
Answer:
The humid pig is 210 millimeters longer.
Step-by-step explanation:
Naomi fish= 40 millimeters
Humid pig = 25 centimeters
1 centimeter is equal to 10 millimeters.
Naomi fish - 40 millimeters
Humid pig- 250 millimeters
To find how much lobger the humid pig is subtract 40 from 250.
250-20 = 210
210 millimeters longer.
Answer:
Step-by-step explanation:
we know that
Answers in cm
we know that
Naomi's fish is 40 millimeters long
convert to centimeters
and
her guinea pig is 25 centimeters long
Find the difference
so
The guinea pig is much longer than her fish
Answers in mm
we know that
Naomi's fish is 40 millimeters long
and
her guinea pig is 25 centimeters long
convert to millimeters
Find the difference
so
The guinea pig is much longer than her fish
Determine the domain of the function 9x/ x(x^2-49)
Answer:
Step-by-step explanation:
9
The given function may be reduced to -------------- , x ≠ 0 because we cannot
x^2 - 49
division by zero in the original form of the function is undefined. Furthermore, x cannot be either ±7, for the same reason.
Thus, the domain of this function h(x) is {x ≠ 0, x ≠ ±7}
Graph the inequality on the axes below.
2x + 5y 3-5
Answer:
there ARE NO AXES
Step-by-step explanation:
If y varies jointly with x and y =3 when x=2 and z=4 find y when x=8 and z=12
Answer:
y=10
Step-by-step explanation:
As you can see, the order when x=2 and z=4, is y=x+1, z=y+1, therefore y was 3.
Then, you can find y when x=8 and z=12 by:
12-8=4 (the difference between z and x)
and then divide 4 by 2 (the number of intervals between x, y, and z)
then get 2 (as the difference between x and y.
The answer is 8+2=10.
Hope this helps!
PLZ HELP!!! Find the measure of BAC
Answer:
<BAC = 20°
Step-by-step explanation:
It is given in the question that all 9 triangle which are formed are congruent, which means that in all triangles, the angle which is formed at point A is same.
Which means 9 angles collectively can be written as 9 · <BAC
If we consider all the 9 triangles, we can see in the figure that it forms a semicircle.
A semicircle has a total sum of angles equal to 180°
So we can write that:
9 · <BAC = 180°
Simplify for <BAC
<BAC = 20°
I NEED HELP ASAP!!!!! WILL MARK BRAINLIEST!!!!!!
Answer: 16
Step-by-step explanation:
The 7 and the 9.
Look closely
1. What wavelengths are associated with the light color observed in each metal’s flame test?
2. What are the most probable atoms in your unknown solid based on the observed light emissions?
3. Sodium light is easy to filter because it only emits light at a specific wavelength. Would any of the other metals you tested also be easy to filter? Why or why not?
4. If a fireworks engineer was planning a Christmas show and wanted to create a red explosion followed by a green one. Based on the flames observed, which metal salts should they use?
The metal salts I used to test were Potassium Chloride, Lithium Chloride, Copper Chloride, Sodium Chloride, and an Unknown Salt.
Answer:
Here's what I get
Step-by-step explanation:
1. Wavelengths
[tex]\begin{array}{lcc}\textbf{Salt} & \textbf{Flame Colour} & \mathbf{\lambda} \textbf{/nm}\\\text{KCl} & \text{violet} & 423\\\text{LiCl} & \text{red} & 701\\\text{CuCl}_{2} & \text{blue-green} & 492\\\text{NaCl} & \text{ orange-yellow} & 590\\\end{array}[/tex]
2. Identity of unknown
Don't know. You haven't told us its flame colour.
3. Light filters
You could probably filter lithium light. It is almost pure red.
The other elements emit light of mixed colours. It would be difficult to filter them with filters of a single wavelength.
4. Fireworks chemicals
For a red explosion followed by a green one, the engineer should use LiCl and CuCl₂.
What is a number of subsets for the set which contains the 10 elements.
Answer:
The number of subsets of a set containing 10 elements is 2^10=1024.
Step-by-step explanation:
help please :))))))))
Answer: 35/24 is the answer for the first part only.
Use calculator soup on google search to answer the rest.
Step-by-step explanation:
please help for math
Answer:
2.35 m²
Step-by-step explanation:
Divide the shape into shapes you can calculate the area of: a rectangle with a semi-circle on top, minus a square.
1. Calculate the area of the rectangle. Formula for area of a rectangle is length · width
1 m · 2 m = 2 m²
2. Calculate the area of the semi-circle. Formula for a semi-circle is [tex]\frac{\pi r^{2} }{2}[/tex] (use 3.14 for π) (radius is equal to half the diameter)
3.14(0.5)² = 0.785
0.785 ÷ 2 = 0.3925 m²
3. Combine the total area
2 + 0.3925 = 2.3925
4. Calculate the area of the square that will not be painted. Formula for area of a square is s² (side · side)
0.2² = 0.04 m²
5. Subtract the area of the square from the total area
2.3925 - 0.04 = 2.3525
2.3525 rounds to 2.35 m²
how would i do number 2?
Answer:
m=2
Step-by-step explanation:
When you put a number into the inverse of a function (f^-1) you get the original number back.
Ex: f^-1(11) = (11-3)/2 = 4
f(4) = 2×4+3 = 11
So, f(-5)=-2
So, when x is -5,
f(x) = -2
f(x)=m(-5)+8
-2=m(-5) + 8
m=2
Write the following as an equation. Then solve.
The sum of eight times a number, and 8, is equal to seven times the number
Write the above sentence as an equation
Answer:
8x+8=7x
Step-by-step explanation:
The variable is supposed as x where ever the exact number is not mentioned.
n*8 + 8 = n*7 --> the answer must be n = -8 because:
8n + 8 = 7n
8n - 8n + 8 = 7n - 8n
8 = -1n
-8 = n
With 98% confidence interval and n = 25. Find left critical value for Zinterval.
0 -2.492
0 -2.05
0 -2.797
-2.326
Answer:
[tex]\alpha=1-0.98 =0.02[/tex]
And [tex]\alpha/2 0.01[/tex], the degrees of freedom are given by:
[tex] df= n-1= 25-1=14[/tex]
Then the critical value using the t distribution with 24 degrees of freedom is:
[tex] t_{\alpha/2}= \pm 2.492[/tex]
And the best solution would be:
0 -2.492
Step-by-step explanation:
For this problem we know that the sample size is n = 25. The confidence level is 98% or 0.98 then the significance would be:
[tex]\alpha=1-0.98 =0.02[/tex]
And [tex]\alpha/2 0.01[/tex], the degrees of freedom are given by:
[tex] df= n-1= 25-1=14[/tex]
Then the critical value using the t distribution with 24 degrees of freedom is:
[tex] t_{\alpha/2}= \pm 2.492[/tex]
And the best solution would be:
0 -2.492
△MNO ~△DEF. Identify the perimeter and area of △MNO to the nearest tenth. PLEASE HELP!!!
Answer:
Option A: P ≈ 38.7 in, A ≈ 63.7 in²
Step-by-step explanation:
We are told that △MNO ~△DEF. This means that they are similar triangles.
We can solve for this using scale factor.
a) Perimeter of △MNO
The scale factor of two similar triangles is equal to the ratio of the perimeter of the triangles
Scale factor(k) = ratio of the sides of the triangles
In the diagram we are given
Side of △MNO = 6.7in
Side of △DEF = 9in
Perimeter of △MNO = X
Perimeter of △DEF = 52in
Scale factor (k) = 6.7/9
Hence,
6.7/ 9 = X/52
Cross Multiply
9X = 6.7 × 52
X = 6.7 × 52/9
X = 38.711111111 inches
To the nearest tenth, Perimeter of △MNO = 38.7 inches
b) Area of △MNO
The square of the scale factor of two similar triangles is equal to the ratio of area of the triangles
Scale factor(k) = ratio of the sides of the triangles
In the diagram we are given
Side of △MNO = 6.7in
Side of △DEF = 9in
Area of △MNO = Y
Area of △DEF = 115in²
Scale factor (k) = 6.7/9
Hence,
(6.7/ 9)² = Y/115
6.7²/9² = Y / 115
Cross Multiply
9² × Y = 6.7² × 115
Y = 6.7²× 115 /9²
Y = 63.732716049 square inches
To the nearest tenth, Area of △MNO = 63.7 in²
URGENT !!! f(x) = x^2. what is g(x)?
Answer:
C
Step-by-step explanation:
Hello
The point (2,1) is on he graph of g
which means that g(2)=1
for A g(2)=2*4=8
for B g(2)=1/(2*2)
for C g(2)=1
for D g(2) =4/2=2
for the correct answer is C
Hope this helps
PLEASE HELP ME!!! ASAPPPPP!!!!!!
expand and simplify
Answer:
8x+11
Step-by-step explanation:
This problem can be solved by using distributive property.
if there is expression a(b + c).
then by distributive property.
a(b + c). = ab + ac
given problem
3(2x+1) + 2(x+4)
by using distributive property.
=>3*2x + 3*1 + 2*x + 2*4
=> 6x + 3 + 2x + 8
adding term containing x together and constant term together
=> 8x + 11
Thus, solution is 8x+11
the points plotted below are on the graph of a polynomial. How many roots of the polynomial lie between x=-4 and x=3
Answer:
1 zero: Answer C
Step-by-step explanation:
Keep in mind that the polynomial value is zero at any root. Therefore each point that is a root must lie precisely on the x-axis (where y = 0). In the graph given there is only one such point (Answer C)
5*2568?252+2626*25625-26236
Answer:
if the ? is suppose to be a + then the answer is : 67278106
Step-by-step explanation:
Lewis Hamilton completed the first lap at the Monaco Grand-Prix with an average speed of 125 mi/h. His goal is to complete the first two laps with an average speed of 250 mi/h. How fast (in terms of average speed) should his second lap be?
Answer:
infinitely fast
Step-by-step explanation:
To have double the average speed, he must complete the two laps in the same amount of time that he spent completing the first lap. That is, he must complete the second lap in zero time.
Hamilton's average speed for the second lap should be infinite. (He needs to finish it in zero time.)
_____
speed = distance/time
Multiplying by 2, we get ...
2×speed = 2×distance/time . . . . . the time hasn't changed
How did the temperature change if: at first it decreased by 10 % and then decreased by 30% ?
Answer:
We decreased by 37%
Step-by-step explanation:
Let x be the starting temperature
We decrease by 10 percent which means we are left with 100-10 =90 percent
.90 x
Then we decrease by 30 percent, 100 - 30 = 70
( .90x) * .70
.63x
We have .63 of the original left or 63%
100 -63 = 37
We decreased by 37%
Answer:
37% and it decreased
Step-by-step explanation:
Which answer is equal to i^45
Answer:
i
Step-by-step explanation:
The pattern is as follows
i^1 = i
i^2 = -1
i^3 = -i
i^4 = 1
Following this pattern, i^45 = i.
The value of the expression [tex]i^{45[/tex] is equal to i
Complex numbers are the square root of negative numbers. For instance:
[tex]\sqrt{-1} = i\\i^2 = -1[/tex]
Given the complex number:
[tex]i^{45}\\= (i^2)^{22} \times i\\= (-1)^{22} \times i[/tex]
Since any value raise to the even values will give a positive value hence;
[tex]=(-1)^{22} \times i\\=1 \times i\\= i[/tex]
This shows that the value of the expression [tex]i^{45[/tex] is equal to i
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The expression 14s(s - 1) can be used to find
the total number of cards created by the ninth
grade students. Based on the given information,
which of the following statements must be true?
Select all that apply.
Answer:
B. The variable s represents the number of students in each class.
C. The coefficient 14 represents the number of classes in the 9th grade.
Step-by-step explanation:
The total number can be found by multiplying the number of the things with the number of people producing it. For example if 5 boys make 5 colored ropes the total number of ropes will be 5*5= 25.
In this question the combinations rule is used for variuos number of classes which are 14. Now we have to find the number of students which are s (s-1). Suppose s= 6 so the number of students would be 6(6-1) = 6(5) = 30
We will multiply the number of classes 14 with the number of students s(s-1) to get the total number of cards produced.
Determine if the following triangle is a right triangle or not using the Pythagorean theorem converse. Triangle with side lengths:8 in,15 in and 17 in
A.true,these measures do form a right triangle
B.false,these measures do not form a right triangle
Answer:
Picture of the problem please?
Step-by-step explanation:
-((-7) +(4)(-12)+(-3)(11)+(-2))
Answer:
90
Step-by-step explanation:
-((-7) + 4 × (-12) + (-3) × 11 + (-2))
-(-7 + 4 × (-12) + (-3) × 11 + (-2))
-(-7 - 48 - 33 - 2)
-(-90) → 90
Final Answer - 90
Hope this helped! :)
Answer:
90
Step-by-step explanation:
Recall Order of Operations rules that require that computations inside parentheses must be done first. Next, multiplication be done before addition or subtraction.
-((-7) +(4)(-12)+(-3)(11)+(-2)) can be re-written as
- ((-7) +(4)(-12)+(-3)(11)+(-2)), which in turn becomes:
-( -7 - 48 - 33 - 2 ), or
-( -55 - 35), or
- (-90), or 90