Answer:
{x : x ε Z where x<3 & x>4}
Dwayne makes 10 1/2 hours of long distance calls in a month. How much is his bill for that month
Answer:
just for points museum Kristen
What is the mean of 75,87,49,68,75,84,98 ?
if 3(y+12)=24 find the value of 1/8y
Answer:
-1/2
Step-by-step explanation:
3(y + 12) = 24
3y + 36 = 24
3y = 24 - 36
3y = -12
y = -12/3
y = -4
Value of 1/8 × y
1/8 × (-4)
-4/8
-1/2
Answer:
-1/2
Step-by-step explanation:
3(y + 12) = 24
~Simplify left side
3y + 36 = 24
~Subtract 36 to both sides
3y = -12
~Divide 3 to both sides
y = -4
~Now substitute in 1/8y
1/8(-4)
= -1/2
Best of Luck!
Help ASAP shushedhelp please help
Find the general term of {a_n}
[tex] \displaystyle \large{a_1 = 4, \: a_{n + 1} = 2a_n + 1}[/tex]
Please use the form below to solve.
[tex] \displaystyle \large{a_{n + 1} - x = p(a_n - x)}[/tex]
Show your work too. Thanks!
From the given recurrence, it follows that
[tex]a_{n+1} = 2a_n + 1 \\\\ a_{n+1} = 2(2a_{n-1} + 1) = 2^2a_{n-1} + 1 + 2 \\\\ a_{n+1} = 2^2(2a_{n-2}+1) + 1 + 2 = 2^3a_{n-2} + 1 + 2 + 2^2 \\\\ a_{n+1} = 2^3(2a_{n-3} + 1) + 1 + 2 + 2^2 = 2^4a_{n-3} + 1 + 2 + 2^2 + 2^3[/tex]
and so on down to the first term,
[tex]a_{n+1} = 2^na_1 + \displaystyle \sum_{k=0}^{n-1}2^k[/tex]
(Notice how the exponent on the 2 and the subscript of a in the first term add up to n + 1.)
Denote the remaining sum by S ; then
[tex]S = 1 + 2 + 2^2 + \cdots + 2^{n-1}[/tex]
Multiply both sides by 2 :
[tex]2S = 2 + 2^2 + 2^3 + \cdots + 2^n[/tex]
Subtract 2S from S to get
[tex]S - 2S = 1 - 2^n \implies S = 2^n - 1[/tex]
So, we end up with
[tex]a_{n+1} = 4\cdot2^n + S \\\\ a_{n+1} = 2^2\cdot2^n + 2^n-1 \\\\ a_{n+1} = 2^{n+2} + 2^n - 1 \\\\\implies \boxed{a_n = 2^{n+1} + 2^{n-1} - 1}[/tex]
I will mark as brainlist! 25 points!
Write the equation of a line that is parallel to y=0.75 and passes through the point (8,0)
Answer:
y = 0.75x - 6
Step-by-step explanation:
parallel to y=0.75 and passes through the point (8,0)
y - y1 = m(x - x1)
y - 0 = 0.75(x - 8)
y = 0.75x - 6
what number is farther away from 2,300? -125 or -220
subject: math
Answer:
-220
Step-by-step explanation:
2,300-1 then we go into the negatives 0- -2,300
so if -5 is further from 0 than -4 that means the larger number is further
Which of the following statements are true? Select all that apply.
A. 30 is neither a perfect square nor a perfect cube.
B. 25 is a perfect square.
C. 1,000 is both a perfect square and a perfect cube.
D. 64 is a perfect cube. E. 16 is a perfect cube.
Answer:
Step-by-step explanation:
A is certainly true. If you put 30 into your calculator, you get factions for the cube root and square root. True
B is true. 5^2 = 25 Twenty five is made up of 2 fives.
C is a perfect cube. 10 * 10 * 10 = 1000. But it is not a perfect square. False.
D 64 is a perfect cube. (It is also a perfect square).
E false 16 is a perfect square. It is not a perfect cube
True Statements
A B D
2² + 2³ × 3² + 3³ × 4² + 4³
Step-by-step explanation:
2×2+2×2×2×3×3+3×3×3×4×4+4×4×4
4+8×9+27×16+64
572....
Hope this will help u...
(100 POINTS) Answer correct in next 5 mins get brainly
Tisha and her academic team are working to go to state finals. They must have a certain number of points, T, to advance. They have had three local matches, b, c and d, and will attend a district match. District match points count for four times the number of points than local matches do. Choose the equation that would help Tisha find how many points they need to earn in the district match, a, to advance.
a equals T over 4 minus b minus c minus d
a equals T minus b minus c minus d all over 4
a equals T plus b plus c plus d all over 4
a = 4(T − b − c − d)
Answer:
a equals T minus b minus c minus d all over 4
Step-by-step explanation:
T is the total number of points they should have
they had 3 local matches = b c d
District match points a = 4 × (b )
T = b + c + d + a
(T - b - c - d)/4 = a
Answer:
a equals T minus b minus c minus d all over 4
Step-by-step explanation:
I need help with number one and two
Answer:
1) x<55
2)x<60
Step-by-step explanation:
The bus can hold at most 55 passengers
The bulb can hold the same 60 watts or less
A box contains 6 blue pens and 10 red pens. What is the ratio of red pens to total pens as a fraction? *
please please i need it fast :(
Answer:
[tex] \frac{10}{16} [/tex]
Step-by-step explanation:
[tex] \frac{red \: pens}{total \: pens \: } = \frac{10}{16} [/tex]
or 5/8
ILLL MARK BRAINLIEST PLZ HELP
Sandra saves 13% of her salary for retirement. This year her salary was $1,000 more than in the previous year, and she saved $5,720. What was her salary in the previous year?
Complete the equation. 0.13(x + ) = 5,720
Sandra's salary in the previous year was .
Answer:
Step-by-step explanation:
Let the salary in the previous year = $ x
Now the salary = $ (x +1000)
This year savings = $ 5720
13% * (x + 1000)= 5720
0.13 *(x + 1000) = 5720
0.13*x + 0.13*1000 = 5720
0.13x + 130 = 5720 {subtract 130 from both sides}
0.13x = 5720 - 130
0.13x = 5590 {Divide both sides by 0.13}
x = 5590/0.13
x = $ 43000
Sandra's previous year salary = $ 43000
Will mark 1st person as brainliest
Answer:
-23/9
Hope it helps! Leave a 5 star rating and a comment so I know it helped you all! Thanks! :D
4(x)+2 Is -18 what is x
Answer:
x=-5
Step-by-step explanation:
[tex]4x = - 18 - 2 \\ x = \frac{ - 20}{4} \\ = - 5[/tex]
BESTIEEE I HOPE U CAN GIVE ME BRAINLIEST (╥﹏╥)(╥﹏╥)
4x + 2 = -18
4x = -18 - 2
4x = -20
x = -5
Cheers!!
Find the length and breadth of the rectangle if the area is x^2+3x+4ax+12a
Answer:
Area =(x+3)(x+4a)
so sides = 3 and 4a
ackrabbits are capable of reaching speeds up to 40 miles per hour. How fast is this in feet per second? (Round to the nearest whole number.)
5,280 feet = 1 mile
27 feet per second
59 feet per second
132 feet per second
288 feet per second
Answer:
b: 59 feet per second
Step-by-step explanation:
I need the answers and the steps please
Answer:for number one the answer is (-2+3)^2-7
Step-by-step explanation: it means replace the x with the number it equals if you need the solution that is -6
Which of the following ratios can from a proportion with 5/6 ? Show your work!
Answer:
Step-by-step explanation:
5/6 = 14*5/14*65/6 = 5/6
Find the distance d(A,B) between points A and B.
A(1. - 6); B(1,7)
Answer:
d = 13
Step-by-step explanation:
d = √(x2 - x1)² + (y2 - y1)²
d = √[7 - (-6)]² + (1 - 1)²
d = √(13)² + (0)²
d = √169
d = 13
Simplify: 2z^8+ 7z^8
Answer:
9z^8
Step-by-step explanation:
2z^8 + 7z^8
48 divided by blank =6
Answer:
i think ANSWER IS 8
Step-by-step explanation:
48÷8 = 6
Answer:
8 would be your answer if I'm wrong pls let me know and I will edit soon as posable.
Step-by-step explanation:
the way I did it was doing 48 divided by 6 and I got the answer 8 meaning 8 would be the correct answer
Find (h•g)(x)
h(x)= 3x-3 and g(x)=x^2+3
Answers:
A: 3x^3 - 3x^2 + 9x
B: 3x^3 - 3x^2 + 9x - 9
C: 3x^3 + 3x^2 + 9x - 9
D: 3x^3 - 9
Answer:
D
Step-by-step explantion:
What is the value of the expression 9.65 + 2.3?
-9-(-1= -7y+15y help me please
Answer:
Y= 9/22
Step-by-step explanation:
this is what I got
Lance has an aquarium in the shape of a rectangular prism completely filled with water that has a base area of 65 in² and a height of 12 in. Lance pours all of its contents into a second aquarium, also in the shape of a rectangular prism, that has a height of 3 in. The water completely fills the second aquarium.
What is the base area of this second aquarium?
Enter your answer in the box.
The base area of the second aquarium is 260 in².
To solve this problem, recall the volume of a rectangular prism. Thus:
Volume of rectangular prism (V) = base area (BA) × height (h)
Given:Base area of first aquarium = 65 in²
Height of first aquarium = 12 in
Base area of second aquarium = [tex]x[/tex]
Height of second aquarium = 3 in
Therefore:Volume of first aquarium (V1) = [tex]65 \times 12 = 780 in^{3}[/tex]
Volume of the second aquarium (V2) = [tex]x \times 3 = 3x in^{3}[/tex]
To find the value of [tex]x[/tex] (base area of the second aquarium) set both volumes equal to each other.
Thus:[tex]3x = 780\\[/tex]
Divide both sides by 3
[tex]\frac{3x}{3} = \frac{780}{3} \\x = 260[/tex]
Therefore, the base area of the second aquarium is 260 in².
Learn more about volume of rectangular prism here:
https://brainly.com/question/16065525
3+x=7 What does variable represent?
Answer:
a variable is an unknown number by the way the answer is 4 too.
3+x=7
-3 -3
______
x = 4
subtract 3 on both sides to get x (the variable) by itself.
Answer:
good morning here is your answer,
3+x=7
or, x= 7-3
or, x= 4
Brianna bought snacks for her team's practice. She bought a bag of oranges for $2.72 and a 20-pack of juice bottles. The total cost before tax was $45.12. How much was each bottle of juice?
Answer:
each bottle was $2.12 :P
Step-by-step explanation:
➼start by making an equation to find the price of the juice pack, in this case x would be the price of the juice pack because its unknown, the juice pack price(x) added to the price of the oranges(2.72) and equal the total(45.12), the before tax part is not needed info
2.72 + x = 45.12
➼now our aim to get x alone to find out its worth so we will have to do the opposite and subtract 2.72 from everything, since its positive
2.72-2.72=0 crosses out
45.12-2.72=42.4
➼which gets us x = 42.4 so one 20 pack is 42.40 dollars but we arent done yet, to find out the price of EACH bottle we must divide 42.4 by 20!
42.4/20=2.12
➼so to sum it up, each bottle is $2.12 :)
Answer:
$2.12
Step-by-step explanation:
1. Take the total and subtract the amount of the oranges so we can focus on the juice boxes.
45.12 - 2.72 = 42.4
2. Now that the oranges are out of the way, take the remaining amount of the total (how much the 20 boxes cost all together), 42.4, and divide by 20 to find how much each box costs.
42.4 ÷ 20 = 2.12
Hope I could help :)
A car takes 65.1 seconds to travel 1 mile. How long does it take the car to travel 4.3 miles? First round to the nearest whole number to find the estimated answer.
I'm giving 20 points
in the United States 8•10⁹ text messages are sent every month. about how many text messages is this?
Answer:
8,000,000,000 text messages every month.
Step-by-step explanation:
[tex]8*10^9[/tex]
[tex]10^9[/tex] means there will be 9 zeroes at the end of 1. So it will be 1,000,000,000.
So 8* 1,000,000,000 will be 8,000,000,000 text messages every month.
