first step to remove brackets
here write them in serial order,
=5x²+3x+4+5x²+5x-1
=5x²+5x²+3x+5x+4-1
=10x²+8x-3
Answer:
If I'm not mistaken your answer should be the third option: 10x2 + 8x + 3
please tell me if im wrong
Step-by-step explanation:
7400 dollars is placed in an account with an annual interest
rate of 6%. To the nearest year, how long will it take for the
account value to reach 19200 dollars?
Answer:
17
Step-by-step explanation:
We have the following equation for compounding annual interest
AV=PV(1+i)ⁿ
We have
19200=7400(1+.06)ⁿ
Solve for n
divide both sides by 7400
2.594=(1.06)ⁿ
then use the following rule for exponents
[tex]x^y=z\\log_xz=y[/tex]
which means that
[tex]log_{1.06}2.594=n[/tex]
Solve and get
16.362
which rounds to 17
what is the sum 3/7 + 1/2
Answer:
13/14
Step-by-step explanation:
3/7+1/2
LCM = 14
6/14+7/14=13/14
Answer:
6/14 + 7/14 = 13/14
If my radius is 10ft, what is my diameter?
Answer:
31.42 ft.
I dont know if this answer is fully correct because i hate doing circles so sorry if im wrong
Step-by-step explanation:
Answer:
20 is your diameter
Step-by-step explanation:
radius is half of a diameter
Two brothers went shopping at a back-to-school sale where all shirts were the same price, and all the shorts too. The younger brother spent $230 on 8 new shirts and 10 pairs of shorts. The older brother purchased 8 new shirts and 4 pairs of shorts and paid a total of $116. How much did each item cost?
Answer:
Younger: 12.78 per item
Older: 9.67 per item
Step-by-step explanation:
Well, if all the shirts and shorts were the same price divide the total price and total amount of items they bought.
Younger Brother:
8 shirts + 10 shorts = 18 items for $230
$230 ÷ 18 items = about 12.78 per item (it comes out to a lot of number so I estimated it the nearest hundredth)
Older Brother:
8 shirts + 4 shorts = 12 items
$116 ÷ 12 items = about 9.67 per item (estimated again)
can I get help with my homework
Help with this please
Answer:
$1.21 per song
Step-by-step explanation:
6 × $1.21 = $7.26
17 × $1.21 = $20.57
20 × $1.21 = $24.50
EASY EXTRA POINTS HELP ASAP
Answer:
(1,-1)
Step-by-step explanation:
The intersection of the two lines
How many right angles need to be put together to make:
a.) 360 degrees?
b.) 180 degrees?
C.) 270 degrees?
d.) A straight angle?
Answer:
A 180° angle is called a straight angle. Angles such as 270 degrees which are more than 180 but less than 360 degrees are called reflex angles. A 360° angle is called a complete angle.
Answer:
A. 4
B. 2
C. 3
D. 2
Step-by-step explanation:
Multiplication!!! Always remember that a right angle is 90 degrees, also a straight angle is 180 degrees..
Remember like this:
90 x 1 =90
90 x 2 =180
90 x 3 = 270
90 x 4 = 360
Simplify and answer please
Answer:
its 2 to the 9th power
Step-by-step explanation:
HELP AS SOON AS YOU CAN PLEASE ILL GIVE BRAINLIEST WHEN I CAN
Answer:
SAS
Step-by-step explanation:
In triangle ABC and triangle EFD
1. BC = CD (S) Given
2. < BCD = < EFD (A) being vertically opposite. angles.
3. AC = CE (S) Given
Hence
By SAS postulate Triangle ABC and triangle EFD are congruent.
HOPE IT HELPS :)❤
7 2/3 - 5 please I need help lol!
Answer:
2 2/3
Step-by-step explanation:
7-5 =2
2/3+2= 2 2/3
hope this helpes
look at the bottom of the pictures to see what number it is
Step-by-step explanation:
hence the value of y=-9/4and k=-16.
Determine which of the lines, if any, are parallel. Explain.
Line a passes through (-1, - 2) and (1,0).
Line b passes through (4, 2) and (2, – 2).
Line c passes through (0, 2) and (-1,1).
The slopes are
Answer:
Line A and Line C are parallel
Step-by-step explanation:
Slope Equation: [tex]m=\frac{y_{2} - y_{1}}{x_{2} - x_{1}}[/tex]
Step 1: Find the slope of the first line
Line a passes through (-1, -2) and (1, 0).
[tex]m = \frac{(0- (-2))}{(1 - (-1))}[/tex]
[tex]m=\frac{2}{2}[/tex]
[tex]m=1[/tex]
Step 2: Find the slope of the second line
Line b passes through (4, 2) and (2, -2).
[tex]m = \frac{(-2- 2)}{(2 - 4)}[/tex]
[tex]m = \frac{-4}{-2}[/tex]
[tex]m=2[/tex]
Step 3: Find the slope of the third line.
Line c passes through (0, 2) and (-1, 1).
[tex]m=\frac{(1-2)}{(-1 - 0)}[/tex]
[tex]m=\frac{-1}{-1}[/tex]
[tex]m=1[/tex]
Answer: Line A and Line C are parallel
Greg went to the store. He bought 5 kilograms of purple beads, 1/2 of a kilogram of orange beads, and 2 kilograms of white beads. How much did he spend?
Answer:
Altogether, Greg spent $22.71.
Step-by-step explanation:
1) 5kg × $2.75 = $13.75
Purple beads: Spent $13.75
2) 1/2 kg = 1.5kg
1.5kg × $1.84 = $2.76
Orange beads: Spent $2.76
3) 2kg × $3.10 = $6.20
White beads: Spent $6.20
4) Add them all together.
$13.75 + $2.76 + $6.20 = $22.71
Hope this helps. :)
Simplify the expression (2 + 3i) + (3 – 5i).
o
A. 5- 2i
B. 5 + 2i
C. 5i + 15
D. 13
E. 3
Answer: A
Step-by-step explanation:
Treat the real and imaginary parts separately, then combine. Because it is addition, not subtraction, distributing the sign will not make a difference. Remove the parenthesis and group like terms together. Then simplify and put in standard form for imaginary numbers (real first, then imaginary).
2+3i+3-5i
2+3+3i-5i
5+ (-2i)
5-2i
six is 3% of what number
Answer:
200
Step-by-step explanation:
Arthur is organising his collection of DVD'S.
He has 60 altogether
The ratio of comedy films to action to horror is 4:8:3
how many of each type of DVD does he have
Answer:
DVD Collection: 42 Comedy DVDs, 49 Horror DVDs, 7 Documentary DVDs
Step-by-step explanation:
I REALLY NEED THIS... PLEASEEE...
Solve the system by substitution.
y= 4x+22
y= −7x
Answer:
x= -2
x= 14
Step-by-step explanation:
Hope this is useful! have a wonderful night or day, God bless you!
3+3+67+7+4+6+78+68+22+71+100-100=
FIND THE ANSWER
Answer:
329
Step-by-step explanation:
thanks for points have a blessed day
Step-by-step explanation:
329 :) i kinda don't know how to explain
you have saved up for a tropical vacation your plane ticket cost $320 what is the maximum that you can spend during your vacation without going over your $1,200 budget
I don't know what to do with this one????!!!!!
Answer:
Step-by-step explanation:
height of post ÷ length of shadow = 2/10 = ⅕
height of tower is ⅕ the length of its shadow.
⅕×125 = 25
The tower is 25 feet tall
System of Linear Equations that have no solution? I need a system.
Answer:
A system of linear equations can have no solution, a unique solution or infinitely many solutions. ... for example 2x+3y=10, 2x+3y=12 has no solution. is the rref form of the matrix for this system.
Which of the following shows the extraneous solution to the logarithmic equation log7(3x^3+x)-log7(x)=2?
Answer:
x=4
Step-by-step explanation:
on edge
The extraneous solution to the logarithmic equation log₇(3x²+x)-log₇x=2 is x=16
What is logarithm?When you raise a number with an exponent, there comes a result.
Lets say you get[tex]a^b = c[/tex]
Then, you can write 'b' in terms of 'a' and 'c' using logarithm as follows
[tex]b = \log_a(c)[/tex]
'a' is called base of this log function. We say that 'b' is the logarithm of 'c' to base 'a'
We are given the function as;
log₇(3x²+x)-log₇x=2
Domian: 3x²+x>0
x(3x+1)>0
x∈(-∞,-1/3)U(0,∞)
Hence, x∈(0,∞), Thus x∈(0,∞)
In this problem we use the following formula:
[tex]\boxed {log_ax-log_ay=log_a\frac{x}{y}}\displaystyle\\log_7(3x^2+x)-log_7x=2\\\\log_7(x(3x+1))-log_7x=2(1)\\\\log\frac{x(3x+1)}{x} =2(log_77)\\\\log(3x+1)=log_77^2\\\\log_7(3x+1)=log_749\\\\\\\\3x+1=49\\\\3x+1-1=49-1\\\\3x=48\\\\x=16[/tex]
Learn more about logarithm here:
https://brainly.com/question/20835449
#SPJ7
x
For f(x)=0.01(2) , find the average rate of change from x=3 to x=8.
Option b. 0.496
Step-by-step explanation:we know that
f(x)=0.01(2^{x})
The average rate of change is equal to
\frac{f(b)-f(a)}{b-a}
where
a=3
b=8
f(a)=f(3)=0.01(2^{3})=0.08
f(b)=f(8)=0.01(2^{8})=2.56
Substitute
\frac{2.56-0.08}{8-3}
\frac{2.48}{5}
0.496
I NEED HELP PLEASE WILL MARK BRAINLIEST
9514 1404 393
Answer:
$109.97
Step-by-step explanation:
Each straight piece of wire is the diagonal of a square that is 3" on a side. The Pythagorean theorem tells you the length of that diagonal is ...
d = √(3^2 +3^2) = √18 = 3√2 . . . inches
There are 4 such diagonals on each trivet, so the total length of wire for 12 trivets is ...
(12)(4)(3√2) = 144√2 . . . inches
At a cost of $0.54 per inch, the total cost for 12 trivets will be ...
($0.54)(144√2) = $109.97
The cost of the copper wire for making 12 trivets is $109.97.
Please help Expand 3(y+2)
Answer:
3y + 6
Step-by-step explanation:
3 x y = 3y
3 x 2 = 6
3y + 6
suppose the expression was (12-3) to the second power would you have to still simplify 3 to the second power first explain
You would take which ever number is taken to the power sat it was 12 to the power of 2+4, you would take the 12 not the 4, Hope this helps!
the line graphed below has a slope of _______?
Answer:
-3
Step-by-step explanation:
slope = Δy / Δx = -6/2 = -3
Help!!!!!!!!!!!!!!!!!!!! Pleaseee
I will mark you Brianliest!!!!!!!
I need and answer choice
NO random things being type like example>
djksdfjrghbfdfddk45t
I don't need that i need and actual answer please
Answer:
A. The perimeter of the third triangle will be equal to the perimeter of the second triangle because the lengths of line segments are preserved during translations.
Step-by-step explanation:
When a shape is translated, it simply means it is moved. Nothing about it is being changed besides the location. Therefore, it will have the same perimeter because its sides are the exact same.
I hope this helps! ☺
What is the area formula for a rectangle?
A: A = (1/2)bh; Area = (1/2) x base x height
B: A= (1/2)(b1 + b2)h; Area = (1/2) x (base1 + base2) x height
C: A = bh; Area base x height
D: A = a^2; Area = side x side