Answer:
8 feet i dont know!!!!!!
What is the product of the polynomials below?
(6 - 5x^2)(x4-x^3)
Answer:
-5x^6+5x^5+6x^4-6x^3Step-by-step explanation:
[tex]\left(6-5x^2\right)\left(x^4-x^3\right)\\\\\mathrm{Apply\:FOIL\:method}:\\\quad \left(a+b\right)\left(c+d\right)=ac+ad+bc+bd\\\\a=6,\:b=-5x^2,\:c=x^4,\:d=-x^3\\\\=6x^4+6\left(-x^3\right)+\left(-5x^2\right)x^4+\left(-5x^2\right)\left(-x^3\right)\\\\\mathrm{Apply\:minus-plus\:rules}\\+\left(-a\right)=-a,\:\:\left(-a\right)\left(-b\right)=ab\\\\=6x^4-6x^3-5x^4x^2+5x^3x^2\\\\Simplify\\\\=-5x^6+5x^5+6x^4-6x^3[/tex]
There are six households in a rural community. Each household earns $40,000 per year. Suppose that a new resident builds a mansion in the community and that the income in the new household is $4 million per year. After the new resident arrives, the median household income has _____, and the mean household income has _____. increased; increased not changed; increased not changed; not changed increased; not changed
Answer:
Median income has not changed
Mean income has increased
Step-by-step explanation:
Initial number of houses = 6
Earning per household = $40,000
The initial mean :
$(40,000 * 6) / 6 = $40000
Initial median :
40000, 40000, 40000, 40000, 40000, 40000
= 1/2(n+1)th term,
Median = 40000
A 7th household earns 4,000,000
Mean = ((40000*6) + 4,000,000) / 7 = $605,714
Median = 1/2(n+1)th term
40000, 40000, 40000, 40000, 40000, 40000, 4000000
Median = 4th term = 40000
You have $10. If you and 3 of your friends want to go to the movies, what does the ticket price need to be for you to be able to buy all 4 tickets?
Answer:
$2.50
Step-by-step explanation:
$10/4 = $2.50
f(n)=2n+1
g(n)=3n
Find f(n)+g(n)
Answer:
5n + 1
Step-by-step explanation:
f(n) + g(n) is just 2n + 1 + 3n , adding the two functions together!
Those expressions combine to 5n + 1 :)
Plsss help. giving extra points if correct.
Answer:
B. ACB AND ACD
Step-by-step explanation:
since you need to prove, you need to show that the figure can work on any 2 triangles… hope it helps.
PLEASE HELP ILL GIVE BRAINLIEST
Answer:
1 and 2 is The first one and 3 and 5 is the second one
A university was interested in examining the overall effectiveness of its online statistics course, along with the effectiveness of particular aspects of the course. First, the university wanted to see whether the online course was better than a standard course. Second, the university wanted to know whether students learned best using Excel, using Minitab, or using no statistical package at all. The university randomly selected a group of 30 students and administered one of the different variants of the course (i.e., traditional or online, coupled with one of the three software options) to each student. The success of each variant was measured by the students' average improvement between a pre-test and a post-test.
i. Is this a controlled experiment or observational study?
ii. What are the explanatory variables?
A. The students mean pre-test average score.
B. Whether the course was online or traditional.
C. Whether the course was online or traditional and the statistical software used.
iii. The response variable is:
A. the students' mean post-test score.
B. the difference between the students' mean pre-test and post-test scores.
C. an evaluation of course quality provided by an independent rater.
iv. How many treatment groups are there in this study?
A. 3
B. 4
C. 5
D. 6
E. 7
Answer:
i. This is controlled experiment
ii. C. Whether the course was online or traditional and the statistical software used.
iii. B. The difference between students mean pre-test and post-test scores.
iv. D. 6
Step-by-step explanation:
This is controlled experiment because the university is observing students who take either online course or a standard course. The students have 3 different software available which they can learn. The students are observed based o pre test and post test results.
If f(1)=1, f(2)=4 and f(n)=3f(n-1)-f(n-2) then find the value of f(4).
Answer:
29
Step-by-step explanation:
f(3)=3f(2)-f(1)=3x4-1=11
f(4)=3f(3)-f(2)=3x11-4=29
Identify the domain of the function shown in the graph.
10-
8
8
4
2
-8-8-4
-2
-2-
2
4
8
8
10 12
4
-B
-8
-10
Answer:
domain means x- component I hope you you can identify the domain
Find the measure of angle 3
Answer:
120
Step-by-step explanation:
Howto solve for x in X+10=30
Answer:
20
Step-by-step explanation:
x+10=30
x=30-10
x=20
HOPE IT HELPEDStep-by-step explanation:
=>x+10=30=>x+10-10=30-10 ten(+10) will be cancelled by negative ten(-10)=>x=20check
20+10=30
do it and I give 100 points
a^2 is correct
my past answer was incorrect but this 100 percent is correct
The rectangle below has an area of zº +82 + 15 square meters and a width of 2 + 3 meters.
What expression represents the length of the rectangle?
Length
2 +3
2° +8x + 15
Length
meters
Answer:
(x+5) metres
Step-by-step explanation:
correct question
The rectangle below has an area of x^2+8x+15 square meters and a width of x+3 meters. What expression represents the length of the rectangle?
Area of the rectangle = Length * width
Factorize the area
A(x) = x^2+8x+15
A(x) = x^2+3x+5x+15
A(x) = x(x+3) + 5(x+3)
A(x) = (x+3)(x+5)
Since the width is x+3, the length of the rectangle will be (x+5) metres
What are the zeros for y = x squared - 4
Answer:
zeros are ±2
Step-by-step explanation:
y = x² - 4
this can be factored into (x+2)(x-2)
if you then set each factor equal to zero you will get zeros of ±2
A website offers mp3 downloads for a fee of $5 plus $0.15 for each song. Which choice gives an expression that shows the cost in dollars for purchasing "s" songs? 5 +0.15s 0 0.15 + 5s 0.45s 05.15 + 5 Next > Previous NA data to save last checked at 6:41 pm Submit Quiz
Answer:
i think 5 + 0.15
Step-by-step explanation:
What are the roots of this quadratic equation?
3x^2 + 10=4x
A teaspoon of salt has a mass of 6 grams what is its mass in milligrams
Answer:
6000 milligrams
Step-by-step explanation:
trust
7,16,30,49,73,?
find next number in series
Let A be the first sequence, and denote by [tex]a_n[/tex] the n-th term in A.
Consider the forward differences of A :
16 - 7 = 9
30 - 16 = 14
49 - 30 = 19
73 - 49 = 24
Call this sequence of first differences B, so that for n ≥ 1,
[tex]b_n=a_{n+1}-a_n[/tex]
where [tex]b_n[/tex] is the n-th term of B.
Now consider the forward differences of B, which is another sequence we'll call C :
14 - 9 = 5
19 - 14 = 5
24 - 19 = 5
Then if [tex]c_n[/tex] is the n-th term of C, we have for all n ≥ 1,
[tex]c_n=b_{n+1}-b_n=5[/tex]
which gives
[tex]b_{n+1} = b_n+5[/tex]
This tells us B is an arithmetic sequence - the first term is 9 and the difference between consecutive terms is 5, so we have for n ≥ 1,
[tex]b_n = 9 + 5(n-1) = 5n + 4[/tex]
Plug this into the recurrence for A :
[tex]a_{n+1} = a_n + b_n = a_n + 5n + 4[/tex]
We don't need to solve for [tex]a_n[/tex], fortunately; we just want the next term, which would be
[tex]a_6 = a_5 + 5^2 + 4 = 73 + 25 + 4 = \boxed{102}[/tex]
How is finding the volume of prisms a bit like slicing a loaf of bread?
Answer:
To find the volume of a rectangular prism, multiply its 3 dimensions: length x width x height. The volume is expressed in cubic units.
Need help on the picture i attached
Answer:
1.) Standard form -
2.) Center (1,-3)
3.) Radius r=4
4.) Diameter d=8
5.) Circumference 25.12
6.) Area 50.24
7.) Graph
Step-by-step explanation:
PLSSS HELP PANICKING
The sum of Alex and John's money is $48. Alex has $3 more than twice the amount John has. How much money do they each have?
Answer:
John has $15 and Alex has $33Step-by-step explanation:
a systems of equations can be made from the information on the problem
x+y=48
x=2y+3
since x= 2y+3 substitute 2y+3 in the firat equation to get:
(2y+3)+y=48 -> 3y+3=48 -> 3y=45 -> y=15
plug in 15 for y in the second equation to solve for x
x+15 =48 --> x=33
I need help on number 10 plz
Answer:
12 inches
Step-by-step explanation:
3 feet = 1 yard
1/3 yard = 1 foot
1 foot = 12 inches
Find the missing lengths.
Answer:
that angle is 45°
so y = 5√3
and × = √2×y
x= √2 × 5√3
x=5√6
Please look at the image
Answer:
the pic is block
Step-by-step explanation:
Answer:
Jack's age =a
Matt's age= 2a+6
a+2a+6 =90
3a +6. =90
3a= 90-6
3a=84
a=28
5th grade math. correct answer will be marked brainliest
Answer:
5280
Step-by-step explanation:
Hope this helps!
Brad is cutting logs. He has 4 logs. Brad will cut each log by 12
If Brad cuts each log by 12 he will have 48 pieces of cut logs. I hope this helps you, have a great day!
Answer:
48
Step-by-step explanation:
4x12=48
3 toys cost x kobo. How many toys can be bought with #3.00?
Answer:
ok so you say I don't know for 10000000000 year's the end. :)
Please helppppppppppppppppppppppp
Answer:
u got the right answer in the picture
whats 2+2 UnU thats a hard one ToT
Answer:
4
MARK ME BRAINLIEST CUZ IM DA SMARTEST :))
the answer to that is 4
please help brainliest
Answer:
area = 186.984
Step-by-step explanation:
The 3 rectangular surfaces are simply L * W of each so
left surface = 5.5 * 6.2 = 34.1
right surface = 5.5 * 8.5 = 46.75
bottom surface = 5.5 * 9.8 = 53.9
The front and back are the same so
front = 1/2 base * heigth = 1/2 * 9.8 * 5.33 = 26.117
front + back = 2 * 26.117 = 52.234
total = sum them all up = 34.1 + 46.75 + 53.9 + 52.234 = 186.984