Answers
Answer:
A = (15 + 2x)(20 + 2x)
Step-by-step explanation:
Related Questions
HELP
PLEASE
DUE
RNNN
WILL GIVE
BRIANLIST
Answers
Dustin got four-fifths of the answers correct on his math test. If there was 20 questions , how many did he get right ?
Answers
Answer:
= 16
Step-by-step explanation:
1/5 of 20 = 4
so,
4/5 of 20 = 16
if a circle is split into 5 parts what is the percentage of each piece
Answers
Answer:
20%
Step-by-step explanation:
If we think of the circle as 1, and each piece 1/5, and since we know that 1/5 = 20%, we can conclude that each piece takes up 20% of the circle.
Derivative using direct definition of derivative 2-x/2+x
Answers
Let f(x) = (2 - x)/(2 + x). By definition of the derivative,
[tex]\displaystyle f'(x)=\lim_{h\to0}\frac{f(x+h)-f(x)}h[/tex]
[tex]\displaystyle f'(x)=\lim_{h\to0}\frac{\frac{2-(x+h)}{2+(x+h)}-\frac{2-x}{2+x}}h[/tex]
[tex]\displaystyle f'(x)=\lim_{h\to0}\frac{\frac{(2-x-h)(2+x)-(2-x)(2+x+h)}{(2+x+h)(2+x)}}h[/tex]
[tex]\displaystyle f'(x)=\lim_{h\to0}\frac{-4h}{h(2+x+h)(2+x)}[/tex]
[tex]\displaystyle f'(x)=-4\lim_{h\to0}\frac1{(2+x+h)(2+x)}=\boxed{-\frac4{(2+x)^2}}[/tex]
In 120 spins, about how often can you expect to get a number less than 6?
Answers
Answer:
is is 35
Step-by-step explanation:
asdfasdf
Find the length of the third side. If necessary, round to the nearest tenth.
24
28
Answers
Answer:
h²=p²+b²
28²=p²+24²
p²=784-576
p²=208
p=√208
p=14.42 cm
hope it helps
stay safe healthy and happy.Your current job offers a pension that is calculated by multiplying the
number of years worked by the average salary of your last three years times
1.36%. If you plan on retiring after 25 years, calculate your annual pension if
your last three year salaries were $86,966, $88,666, and $90,628.
Answers
The answer is $1118.29
Find the surface area of each figure. Round your answer to the nearest hundredth if necessary. NO LINKS!!! Part 2b.
Answers
Answer:
8. 272 m²
10. 306.9 km²
12. 311.4 m²
Step-by-step explanation:
8. the surface area =
(10×10)+(4×½×10× 8.6)
= 100 + 172 = 272 m²
10. the surface area =
(11×7)+(2×½×7×13.2)+(2×½×11×12.5)
= 77+92.4+137.5= 306.9 km²
12. the surface area =
(9×9) +(4×½×9×12.8)
= 81+230.4 = 311.4 m²
Select the correct answer.
Which equation is equivalent to the given equation?
-4(x-5)+8x=9x-3
Answers
The Histogram is a graphic which is: A. Bar Chart useful for showing the distribution of data B. 80-20 principle C. A complex timeline D. A simple history
Answers
Answer: Flow Chart. B - Fishbone Diagram. C - Scatterplot. D - 80-20 principle; used to identify the ... The Histogram is a graphic which is: A - Bar Chart useful for showing the distribution of data. B. 80-20 principle. C. A complex timeline. D. A simple history
Step-by-step explanation: Hope this helped :)
The hundred students took a survey. They were asked, "What is your favorite kind of sandwich?" Turkey was chosen by 25% of the
students.
What number of students chose turkey?
O A 5
B. 50
Ο Ο
ООО
C. 100
D. 175
E 500
Answers
Answer:
Step-by-step explanation:
Answer:
its A because 25% is equal to 25 out of a hundred
Step-by-step explanation:
Which statement is NOT true?
All squares are rhombuses.
All rhombuses are parallelograms.
The diagonals bisect each other in squares, rhombuses, and rectangles.
The diagonals are perpendicular in squares, rhombuses, and rectangles.
Answers
Answer:
D
Step-by-step explanation:
Rectangles haven’t perpendicular diagonals
Do the following points lie on the graph of
9x − 3y = 63? I need the steps of how I got these right
Answers
Answer:
a. The point is on the graph
b. The point is not on the graph
Step-by-step explanation:
To know if any of the points lie on the graph of 9x - 3y = 63, substitute the value of each given point into the equation to see if the equation is true.
a. (5, -6)
Substitute x = 5 and y = -6 into 9x - 3y = 63:
9(5) - 3(-6) = 63
45 + 18 = 63
63 = 63 (the equation is TRUE)
Therefore, (5, -6) is a point on the graph.
b. (2, 1)
Substitute x = 2 and y = 1 into 9x - 3y = 63:
9(2) - 3(1) = 63
18 - 3 = 63
15 = 63 (this is NOT TRUE)
Therefore, the point (2, 1) is not a point on the graph.
Since an instant replay system for tennis was introduced a a major tournament, men challenged 1390 referee calls, with the result that 411 of the calls were overturned. Women challenged 753 referee calls, and 213 of the calls were overturned. Use a .05 significance level to test the claim that men and women have equal success in challenging calls.
Required:
a. Test the claim using a hypothesis test.
b. Consider the first sample to be the sample of male tennis players who challenged referee calls and the second sample to be the sample of female tennis players who challenged referee calls. What are the null and alternative hypotheses for the hypothesis test?
c. What is the conclusion based on the hypothesis test?
Answers
Answer:
H0: μm − μw = 0
against the claim
Ha: μm − μw ≠ 0
Since the calculated value of z= 0.6177 does not lie in the critical region the null hypothesis is accepted that men and women have equal success in challenging calls.
Step-by-step explanation:
1) Let the null and alternate hypothesis be
H0: μm − μw = 0
against the claim
Ha: μm − μw ≠ 0
2) The significance level is set at 0.05
3) The critical region is z > + 1.96 and z< -1.96
4) The test statistic
Z= p1-p2/ sqrt [pcqc( 1/n1+ 1/n2)]
Here p1= 411/ 1390= 0.2956 and p2= 213/753=0.2829
pc = 411+ 213/1390+753
pc=624/2143
pc= 0.2912
qc= 1-pc= 1-0.2912=0.7088
5) Calculations
Z= p1-p2/ sqrt [pcqc( 1/n1+ 1/n2)]
z= 0.2956-0.2829/√ 0.2912*0.7088( 1/1390+ 1/753)
z= 0.0127/ √0.2064 (0.00204)
z= 0.0127/0.02056
z= 0.6177
6) Conclusion
Since the calculated value of z= 0.6177 does not lie in the critical region the null hypothesis is accepted that men and women have equal success in challenging calls.
If you place a 35-foot ladder against the top of a 31-foot building, how many feet will the bottom of the ladder be from the bottom of the building? Round to the nearest tenth of a foot.
Answers
Answer:
4ft
Step-by-step explanation:
The bottom of the ladder will be 16.25 feet from the bottom of the building.
What is the right triangle?A right triangle is defined as a triangle in which one angle is a right angle or two sides are perpendicular.
As per the situation, we create a right triangle as shown.
Let x be the distance from the bottom of the building to the bottom of the ladder.
Using Pythagoras's theorem, then, we have:
x² + 31² = 35²
Simplifying this equation, we get:
x² = 35² - 31²
x² = 264
x = 16.25 (rounded to the nearest tenth of a foot).
Therefore, the bottom of the ladder will be 16.25 feet from the bottom of the building.
Learn more about Pythagoras's theorem here:
brainly.com/question/343682
#SPJ6
ny with 350 employees is changing the employee health insurance plan to either plan A or plan B. The company wants to know if employees have a preference between the two plans and whether or not preference differs between those employees who have family members covered under the current plan (group 1) and those who do not (group 2). The human resources office takes a simple random sample from each of the two groups, sends information about both plans to the employees in each sample, and asks them whether they prefer plan A or plan B. The table summarizes the responses received, with expected cell counts in parentheses. Plan A Plan B Total Yes (group 1) 40 (32.5) 20 (27.5) 60 No (group 2) 6 (13.5) 19 (11.5) 25 Total 46 39 85 Which statement is true about whether the conditions for the chi-square test for homogeneity have been met?
Answers
Answer:
All the conditions for the chi square test of homogeneity are satisfied.
Step-by-step explanation:
The conditions for the chi square test are
1) the sample is a random sample
2) the variable under study is categorical
3) all expected value of the number of sample observations are greater or equal to 5.
A)The observations must be independent
B) for 2 categories the expected values must be at least 5
C) for the 3 categories the expected values must be at least 1 and no more than 20% may be smaller than 5
The observations given are independent that is not equally likely i.e do not have equal chances of occurrences or are not dependent on each other.
4) the overall sample must be resonably large that is greater than 50
use inequalities to describe yh3 shaded area
Answers
Answer:
where is the figure and the picture?
The table gives the value in dollars) of Jordan's boat based on its age in years).
Value of
Jordan's Boat
Year Value
(V
Breaty - Ch.
0
64.000
1
52.000
2
41.000
3
33.000
4
26.000
5
21.000
6
16.000
7
13.000
er Channel
11.000
Using regression methods, which equation best approximates this data?
O V = 64,000 (0.8")
V = -12,000y + 64,000
Office Home
y Courses
V = 7157 – 12.000y + 64,000
V = 1000y? - 13,000y - 64,000
Answers
The horizontal distance of the ramp is 12 ft. And the vertical height of the ramp is 5 ft. Round answers to the nearest whole number.
a) what is the length of the ramp?
b) Find measure of the angle incline.
Answers
Answer:
a) 13 feet
b) 22.6º
Step-by-step explanation:
c² = 12² + 5²
c² = 144 + 25
c² = 169
Take the square root of both sides
c = 13 Feet
----------------------------
tan = opp/adj
∅ = arctan5/12
∅ = 22.619864948040426
∅ = 22.6º
Help find the value of x.
Answers
Answer:
75 degrees
Step-by-step explanation:
The shape is a trapezoid. When finding angle measurements in trapezoids:
Angle A + Angle C = 180 degrees
Angle B + Angle D = 180 degrees
Because you need to find the angle of B, we will use Angle B + Angle D = 180 degrees to solve this. Angle D is 105 degrees, so 105 + Angle B = 180. 180-105 equals 75, so angle B is 75 degrees.
Which expression is equivalent to x+3/x2/x2−9/x?
1x(x−3)
x(x−3)
1x(x+3)
x(x+3)
Answers
Answer:
its x+3/x
Step-by-step explanation:
i took the test EDG 2021
1,275/5 find the unit rate
Answers
Answer:
255
Step-by-step explanation:
1,275/5 = 255
Sets A and I are defined as follows. A = { − 1 , 0 , 1 , 2 , 4 , 6 , 7 } I = { − 2 , − 1 , 1 , 2 , 8 } Find the intersection of A and I
Answers
==========================================================
Explanation:
Start with set A and circle any value that you find in set I. Those values are -1, 1, and 2. These elements are found in both sets at the same time, hence they are in the intersection of set A and set I
Refer to the Venn diagram below. We have the values -1, 1, and 2 in the blue overlapped region. A value like 4 is only found in set A, so it's inside circle A, but outside circle I. On the flip side, a value like 8 is found outside of circle A but inside circle I.
The use of curly braces in the answer tells the reader we're dealing with a set of values. The order doesn't matter for any given set. Often it's helpful to put it in order from smallest to largest.
pls help solve these!
Answers
Step-by-step explanation:
#27 Using Pythagorean theorem, the length of side ZY is given by
(ZY)^2 = (x - 1)^2 + (x + 1)^2 = (x^2 -2x + 1) + (x^2 + 2x + 1)
= 2x^2 + 2
Taking the square root,
[tex]zy = \sqrt{2 {x}^{2} + 2} [/tex]
#28 There are two shapes that make up this figure: a square of side x and a rectangle with sides (x + 6) and (2x - 3 - x) or (x - 3). Therefore, the area of this figure is
A = area of square + area of rectangle
= (x^2) + (x + 6)(x - 3)
= x^2 + (x^2 + 3x - 18)
= 2x^2 + 3x - 18
In BCD, the measure of
Answers
Answer:
is this yr new questions but still it's blank
stay safe healthy and happy.Identify the translation of the figure with the vertices P(2,3), Q(−1,0), and R(1,−2), along the vector ⟨4,0⟩.
P ′(3, 6), Q ′(3, 0), R ′(5, −2)
P ′(6, 3), Q ′(3, 0), R ′(5, −2)
P ′(3, 6), Q ′(5, 0), R ′(−2, 5)
P ′(6, 3), Q ′(5, 2), R ′(2, −5)
Answers
9514 1404 393
Answer:
B. P ′(6, 3), Q ′(3, 0), R ′(5, −2)
Step-by-step explanation:
The translation vector tells you that 4 is added to each x-coordinate.
(x, y) ⇒ (x, y) +(4, 0) = (x +4, y)
Then ...
P(2, 3) ⇒ P'(2+4, 3) = P'(6, 3) . . . . . matches B or D
Q(-1, 0) ⇒ Q'(-1+4, 0) = Q'(3, 0) . . . . . matches choice B
Check
R(1, -2) ⇒ R'(1 +4, -2) = R'(5, -2) . . . . . also matches choice B
What is cos 0 when sin 0
22
le
(1,0)
✓[?
cos
Rationalize the denominator if necessary.
Answers
Answer:
Cos θ = √7/3
Step-by-step explanation:
From the question given above, the following data were obtained:
Sine θ = √2 / 3
Cos θ =?
Recall
Sine θ = Opposite / Hypothenus
Sine θ = √2 / 3
Thus,
Opposite = √2
Hypothenus = 3
Next, we shall determine the Adjacent. This can be obtained as follow:
Opposite = √2
Hypothenus = 3
Adjacent =?
Hypo² = Adj² + Opp²
3² = Adj² + (√2)²
9 = Adj² + 2
Collect like terms
9 – 2 = Adj²
7 = Adj²
Take the square root of both side
Adjacent = √7
Finally, we shall determine the value Cos θ. This can be obtained as follow:
Adjacent = √7
Hypothenus = 3
Cos θ =?
Cos θ = Adjacent / Hypothenus
Cos θ = √7/3
Please help me !!!!!
Answers
Answer:
1,138 square feet but I'm not 100% sure
Step-by-step explanation:
HELP PLEASE!!!!
Which expression is equivalent to:
1.2y +4.5 -3.4y - 6.3?
5.5y - 10.2
-2.2y - 1.8
4.6y - 1.8
-2.2y + 11.1
Answers
Answer:
-2.2y-1.8
Step-by-step explanation:
1.2y+4.5-3.4y-6.3
1.2y-3.4y+4.5-6.3
-2.2y+4.5-6.3
-2.2y-1.8
help.....................
Answers
Answer:
Answer D is correct
Step-by-step explanation: