EMERGENCY PLEASE HELP
Step-by-step explanation:
here <D+<B=180
sum of two opposite angle of the cyclic quadrilateral is 180
x+28=180
x=180-28=152°
angle A=x-36=152-36=116°
Investment firm claims that the mean increase in price per share companies invest in is $1.95 per share every year and national sample of 100 company shows that the mean increase in price per share is $1.82 per year the standard deviation of share price is nationally is $.30 what is the margin of error
Answer:
The Margin of Error in percentage is 5.88%
Step-by-step explanation:
The values of the factors in the question are;
The mean increase in price per share, = $1.95
The number of companies in the sample, n = 100
The mean increase in price per share, [tex]\overline x[/tex] = $1.82
The standard deviation of the population, σ = $0.30
The margin of error, MOE, is given by the following formula;
[tex]Margin \ of \ Error= z \times \dfrac{\sigma}{\sqrt{n} }[/tex]
Where;
z = z-score, critical value = 1.96 at 95%
σ = The standard deviation of the population = $0.30
n = The sample size = 100
Therefore, we have;
[tex]Margin \ of \ Error= 1.96 \times \dfrac{0.3}{\sqrt{100} } = 0.0588[/tex]
The Margin of Error in percentage = 0.0588 × 100 = 58.8%
The Margin of Error in percentage = 5.88%
Find the solutions to x2 = 8.
A. X = +2.2
B. x= 12,4
C. X = +4-2
D. = +4.6
Answer:
x = ± 2√2
Step-by-step explanation:
Assuming "x2" is x^2 or "x squared", the answer can be derived from "square-rooting" both sides.
√ x^2 = √ 8
Then we simplify.
x = ± 2√2
Hope this helps!
Answer:
the answer is A.
Step-by-step explanation:
Don't have time to write the steps now because i am in class but i might later.
Type the expression that results from the following series of steps:
Start with x, subtract 6, then divide by 7.
Mr. Carlevato and Mr. Burrows get into a debate about two different expressions. · Mr. Carlevato says "2(2x + 3) is equal to 4x + 6". · Mr. Burrows says "Nope, wrong, those are clearly different expressions" Try substituting x=5 into both expressions. Do you get the same answer for both expressions? Show your work!
Answer:
Yes, the same answer is obtained.
Step-by-step explanation:
According to Mr. Carlevato, [tex]2(2x+3)[/tex] is equal to [tex]4x+6[/tex]. However, [tex]2(2x+3)[/tex] is not equal to [tex]4x+6[/tex] according to Mr. Burrows.
Put [tex]x=5[/tex] in [tex]2(2x+3)[/tex]
[tex]2[2(5)+3]=2(10+3)=2(13)=26[/tex]
Put [tex]x=5[/tex] in [tex]4x+6[/tex]
[tex]4x+6=4(5)+6=20+6=26[/tex]
Therefore,
[tex]2(2x+3)=4x+6[/tex]
Yes, the same answer is obtained.
HELP FAST PLZ
Solve for x: 3x − 24 = 81
fifty-seven over three
one hundred five over three
57
105
Answer:
105 over 3
Step-by-step explanation:
you should get 35 as the answer
117
X
x + 3
Find the value of x.
A. 4
В. 5
C. 6
D. 9
Answers:
1. D po
Step-by-step explanation:
i hope its hepl
pls help! will mark brainliest if correct
Answer:
[tex]x = -2, y = 6[/tex]
Step-by-step explanation:
[tex]-x + 4 = -4x-2[/tex]
[tex]x = -2[/tex]
Plug back into either one of the equations to get y = 6
PLEASE HELP ME
180=3x+45
Answer:
3x=180-45
3×=135
3x/3x=135/3x
=45x
Identify the image of ∆XYZ for a composition of two 90° rotations about point X.
Answer:
The first image is ∆XYZ and the second image is ∆XYZ and the composition of two 90° (180°) rotations about point x
The student council sent its members on four field trips during the school year. The number of
buses needed to transport the members on each field trip is a function of the number of members
who went on each trip. This function consists only of the ordered pairs (52,3), (72, 4), (86,5),
and (105, 6). What is the DOMAIN for this function?
Answer:
{52,72,86,105}
Step-by-step explanation:
hope this helps :)
A test has 25 true/false questions. If 64% of the answers are true, how many of the test questions are true?
Answer:
16
Step-by-step explanation:
First, let's find 64% of 25. We do this and get:
[tex]\frac{64}{100}\cdot25=\frac{1600}{100}=16. \text{ so our answer is \boxed{16 \text{ problems are true}}}[/tex]
1. (08.01, 8.02 MC) An expression is shown below: 2x3y2 + 18xy2 − 20x2y − 180y Part A: Rewrite the expression so that the GCF is factored completely. (4 points) Part B: Rewrite the expression completely factored. Show the steps of your work. (6 points) (10 points)
Answer:
A. 2y
B. (xy − 10)(2x²y + 18y)
Step-by-step explanation:
Part A: Rewrite the expression so that the GCF is factored completely.
2x³y² + 18xy² − 20x²y − 180y
Factoring y out, we have
(2x³y + 18xy − 20x² − 180)y
Factoring 2 out, we have
(x³y + 9xy − 10x² − 90)2y
So, the GCF is 2y and the expression factored is (x³y + 9xy − 10x² − 90)2y
Part B: Rewrite the expression completely factored.
2x³y² + 18xy² − 20x²y − 180y
Rearranging, we have
2x³y² − 20x²y + 18xy² − 180y
Separating them into brackets, we have
(2x³y² − 20x²y) + (18xy² − 180y)
Factorizing the expressions in bracket, we have
(xy − 10)2x²y + (xy − 10)18y
collecting like terms, we have
(xy − 10)(2x²y + 18y)
This figure consists of a rectangle and a semicircle.
What is the AREA of the figure?
Question 9 options:
46.28
65.12
125.12
28
Answer:
46.28
Step-by-step explanation:
did the test
Write an equation that describes the function.
Answer:
y = xplus1 sorry, new keyboard and it doesn't have a plus sign
Write a cubic function whose graph goes through the points: (-5, 0) (1, 0) (2, -2) (4, 0)
Answer:
Step-by-step explanation:
From points (-5,0),(1,0),(4,0) we know it has the form
y=(x+5)(x-1)(x-4)
y=(x^2+4x-5)(x-4)
y=x^3-4x^2+4x^2-16x-5x+20
y=x^3-21x+20
Then it must pass through the point (2,-2) so
-2=[2^3-21(2)+20]b
-2=[8-42+20]b
-2=[-14]b
b=1/7 so the equation is
y=(x^3-21x+20)/7
y = x^2+8x-7
Use the formula x=-b/2a
b = 8
a = 1
using the formula given
x = -8/2
x = -4
What is the midpoint of the line segment with endpoints (-2,-2) and (4, 6)? O A. (2,4) O B. (1,4) O C. (1,2) O D. (2, 2)
Answer:
C) (1, 2)
Step-by-step explanation:
Midpoint = [tex](\frac{x_{1}+x_{2}}{2},\frac{y_{1}+y_{2}}{2})[/tex]
[tex]= (\frac{-2+4}{2},\frac{-2+6}{2})\\\\=(\frac{2}{2},\frac{4}{2})\\\\=(1,2)[/tex]
ANSWER FAST, WILL GIVE BRAINLIEST
Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
The heights of the girls in an advanced swimming course are 55, 60, 59, 52, 65, 66, 62, and 65 inches. Match the measures of this data with their values.
65
61
8
14
60.5
median
arrowRight
mean
arrowRight
interquartile range
arrowRight
range
arrowRight
60.5 is mean
61 is median
65 is interquartile range
14 is range
Answer:
60.5 is mean.
_________________
61 is median.
_________________
65 is interquartile range.
_________________
14 is range.
HELP Asap please!!!!!
Answer:
x should be 55
Step-by-step explanation:
the acute angle is 55 and we know that the whole horizontal is 180 so calculate 180-55 to find the obtuse angle which is 125. Then subtract 70 from that to isolate for x and you get 55.
If you left a $25.00 on your table for a $21.50 meal, what was the percent of the tip?
Answer:
It was a 16.5% tip!
Please mark brainliest and I hope this answer helped :)
In a random sample of 200 customers at a restaurant, 140 customers ordered french fries. If the restaurant typically has 1,000 customers in a day, about how many will probably order french fries?
Answer: 700 customers
Step-by-step explanation:
In a random sample of 200, 140 people ordered French fries.
Find out the percentage of people who ordered French fries:
= 140 / 200
= 70%
If the restaurant usually has 1,000 customers a day, based on the rate of people who ordered French fries out of 200 people - 70% - the number of people who will probably order French fries are:
= 70% * 1,000
= 700 customers
7m+9, for m=2.
What's the value of this equation
Answer:
replace m with 2 and do 7(2)+9
A small business is looking for rectangular warehouses to store extra merchandise. Warehouse A has an area of 6900 ft2. Warehouse B is half as wide and one-third as long. How many square feet is Warehouse B?
Answer:
The area of the warehouse B is 1150 square feet.
Step-by-step explanation:
Let [tex]x[/tex], [tex]y[/tex] are the width and length of the warehouse A, in inches. The areas of the each warehouse are described below:
[tex]A_{A} = x\cdot y[/tex] (1)
[tex]A_{B} = \left(\frac{1}{2}\cdot x \right)\cdot \left(\frac{1}{3}\cdot y \right)[/tex] (2)
Where:
[tex]A_{A}[/tex] - Area of the warehouse A, in square inches.
[tex]A_{B}[/tex] - Area of the warehouse B, in square inches.
If we know that [tex]A_{A} = 6900\,ft^{2}[/tex], then by (1) and (2) we have the following equation:
[tex]A_{B} = \frac{1}{6}\cdot A_{A}[/tex]
[tex]A_{B} = 1150\,ft^{2}[/tex]
The area of the warehouse B is 1150 square feet.
Order the sides or angles of each triangle from least to greatest.
Answer:
Step-by-step explanation:
VW<WX<VX
25°<65°<90°
Multiply:
2 1/4 x 1 1/2 x 5/3=?
Answer:
The answer is 48.12, I didn't used calculator
Please help ASAP with slopes and explain!!! I will mark brainliest if right!!!
Answer:
d
Step-by-step explanation:
because a - b is minus 1. and a - b is plus 2. rise over run equals -1 / 2. ur welcome
there are nine single discs in a classroom the rest of the deaths are double desks the classroom has seating for 33 learners how many double discs are there in the room
Find the percent of the number. 30% of 70 =
If you can please explain how you got the answer.
Answer:
21
Step-by-step explanation:
Percent is always 100.
Convert 30% to decimal divide by 100.
So do 70 x 0.3
21
Answer:
21
Step-by-step explanation:
If you are using a calculator, simply enter 30÷100×70 which will give you 21 as the answer.
Resolva:
12,548:9
62,547÷7
5,127÷25