Answer:
(3x - 17)
Step-by-step explanation:
hope this helps
what Is 0.0000724 in standard form
Answer:
7.24 * 10^-5
Step-by-step explanation:
What is the value of 12+6/N
when N = 2?
A. 6
B. 9
C. 12
D. 18
Divide the polynomials.
if you dont know dont respond :)
Answer:
Step-by-step explanation:
This is a difference of squares.
√x^2 - √49 is the basic formula for factoring a difference of squares. The idea is that the middle term has been cancelled out.
√x^2 = x
√49 = 7
(x - 7)(x + 7) is the way this factors.
(x - 7)(x + 7)
===========
(x + 7)
The (x +7) in the numerator cancels with the (x + 7) in the denominator.
The answer is (x - 7)
====================================================
She might have wanted you to do it like this.
(x + 7) || x^2 + 0x - 49 || x - 7
x^2 + 7x ........... Subtract
==========
-7x - 49
-7x - 49 ...... Subtract.
=============
0
Or she might have seen you do this
x^2 - 49 x^2 49
======= = === - =====
x + 7 x 7
Every math teacher freaks when they see this. I hope I didn't put ideas in your head.
But if you got the answer by doing what I did, you got it right.
You bought 5 chocolate bars and 8 blow pops for $23.25. Your sister bought 2 chocolate bars and 13 blow pops for $21.55. How much did each chocolate
bar cost? Each chocolate bar cost?
Answer:
Cost of each chocolate bar = $2.65
Cost of each blow pop = $1.25
Step-by-step explanation:
Let x = Cost of chocolate bar
y= Cost of blow pops
We can make system of equations and find value of x and y
You bought 5 chocolate bars and 8 blow pops for $23.25.[tex]5x+8y=23.25[/tex]
Your sister bought 2 chocolate bars and 13 blow pops for $21.55. [tex]2x+13y=21.55[/tex]
Let:
[tex]5x+8y=23.25--eq(1)\\2x+13y=--eq(2)[/tex]
Multiply eq(1) with 2 and eq(2) with 5 and subtract
[tex]10x+16y=46.5\\10x+65y=107.75\\- \ \ \ - \ \ \ \ \ \ - \\------\\-49y=-61.25\\y=\frac{-61.25}{-49} \\y=1.25[/tex]
So, value of y = 1.25
Putting value of y in eq(1) to find value of x
[tex]5x+8y=23.25\\5x+8(1.25)=23.25\\5x+10=23.25\\5x=23.25-10\\5x=13.25\\x=13.25/5\\x=2.65[/tex]
Value of x = 2.65
So, Cost of each chocolate bar = x = $2.65
Cost of each blow pop = y = $1.25
(Pls help ASAP) brainliest
Answer:
#1
x=8.oo+2.00+4.00
?
express 42 minutes as a percentage of 5hours
Answer:
14%
Step-by-step explanation:
A number is 2 tens more than 923
Answer:
953..?
Step-by-step explanation:
kapil bought 40 dolls for Rs.4800. He sold all the dolls at the rate of Rs. 700 per 5 dolls after somedays. How muchprift or loss did he gat in one doll,? Find ut
help plz, I don't know how to find the answer
9514 1404 393
Answer:
25
Step-by-step explanation:
As always, you identify the possible relationships between the given values. Make use of those to find the unknown. Then use that value as required to answer the question(s) posed.
The triangle is isosceles, so AB = AC.
AB = AC
4x +1 = 2x +23
2x = 22 . . . . . . . . . subtract (2x+1)
x = 11
With this value of x, we can find BC.
BC = 3x -8
BC = 3×11 -8
BC = 25 . . . . units
Which statement is true regarding the sides of a triangle
14x15 in area model i need help
Answer:
210
14x15=210
Step-by-step explanation:
14x15 =210
Divide. Round to the nearest tenth
.16 divided by .03220
Answer
.16/.03220 is 4.96894409938 rounded= 5.0
Step-by-step explanation:
A copier takes 4 minutes to duplicate 480 pages, Express the rate at which the copier duplicates, in
pages per second,
Answer:
2 pages per second
Step-by-step explanation:
4*60= 240
480/240=2
2 pages per second
Bridget purchased 3 pairs of shoes online. The total bill of $126.81 included a $7.50 shipping charge and 6% tax on the total purchase. If the shoes that Bridget purchased were all priced the same, how much did each pair of shoes cost
Answer:
$37.
Step-by-step explanation:
Firstly, let's set the price of each pair of shoe to be x.
Since each pair of shoes costs the same, and there are three pairs, we can set the original price to be 3x.
Now, to apply the shipping charge, all we have to do is add 7.50 to 3x, getting 3x + 7.5.
Next, to apply a 6% tax, we can multiple the whole expression by (100% + 6%), getting (3x + 7.5) [tex]\cdot[/tex] 106%.
Since the whole bill foots to a total of $126.81, we can set the final equation to be:
[tex](3x + 7.5) \cdot 106\% = $126.81[/tex]
[tex](3x + 7.5) \cdot \frac{106}{100} = $126.81[/tex]
[tex]3x + 7.5 = $126.81 \cdot \frac {50}{53}[/tex]
[tex]3x = $119.6 - 7.5[/tex]
[tex]3x = 112.1[/tex]
[tex]x \approx \$37[/tex]
Hope this helped!
PLEASE ANSWER what is the solution to -10k +1 <-99 or 10-8k<42
Answer:
Ummmm... Both?
Step-by-step explanation:
66k+9 OR 3(22K+3)
Answer:
k>10
k>-4
Step-by-step explanation:
-10k<-100
k>10
you flip the sign when dividing by a negative
-8k<32
k>-4
Evaluate the expression 3r^2 if r = 1/6.
Answer:
0.08333
Step-by-step explanation:
3(1/6)^2
1/6=0.1666
1/6^2=0.02777
3*0.02777=0.08333
Answer:
1/12
Step-by-step explanation:
This is the answer because:
1) 1/6^2 = 1/36
2) 1/36 x 3 = 3/36 = 1/12 ↔ 3 ÷ 3 = 1 & 36 ÷ 3 = 12 = 1/12
Therefore, the answer is 1/12.
Hope this helps! :D
A boulder, initially at rest, falls off the top of an overhanging cliff during a storm. The cliff is 96 feet high. How long will it take to hit the road below? Round your answers to the nearest thousandth.
Dropped: h(t)=-16t^2+s
Answer:
1.94 seconds
Step-by-step explanation:
Martin is seating people in the cars of a roller coaster. Each car can seat 8 people. Six of the roller coaster cars are yellow and nine of the roller coaster cars are green. People will be randomly seated in the roller coaster cars. What is the probability that the first person will be seated in a yellow roller coaster car?
Answer:
The probability is 2/5
Step-by-step explanation:
Here, we want to calculate the probability that the first person will sit in a yellow roller coaster car
The number of cars to select from is 6 + 9 = 15 cars
The number of yellow cars is 6
So the probability that the first person selects a yellow roller coaster car to seat is 6/15 = 2/5
Reason abstractly, Evaluate each expression: |13 - 6| = ____
Answer:
7
Step-by-step explanation:
13-6=7 the other line doesn't affect the answer because it isn't negative
Answer:
7
Step-by-step explanation:
»Solve inside the absolute value sign | |
|13 - 6| = |7|
The absolute value of 7 is just 7:
|7| = 7
Answer: 7
A circular oil slick is expanding at a rate of 3m/min. How fast is the area of the oil slick changing when the diameter is 48 meters?
Answer:
[tex] 48\pi \:m/min[/tex]
Step-by-step explanation:
Diameter = 48 m
Therefore radius r = 48/2 = 24 m
[tex]Area \: of \: circular \: oil \: slick \\ A = \pi {r}^{2} \\ differentiating \: w \: r \: to \: t \: on \: \\ both \: sides \\ \\ \frac{dA}{dt} = \frac{d}{dt} (\pi {r}^{2} )\\ \\ \frac{dA}{dt} =\pi \frac{d}{dt} {r}^{2} \\ \\ \frac{dA}{dt} =\pi \times 2{r}\\ \\ \frac{dA}{dt} =2\pi {r} \\ \\ \bigg(\frac{dA}{dt} \bigg)_{r=24} =2\pi \times {24} \\ \\ \bigg(\frac{dA}{dt} \bigg)_{r=24} =48\pi \: m \: per \: min[/tex]
in march, Arnold finds a guitar with a price of $650 that he wants to buy, but he only has $300 saved. In September, Arnold has 75% more money saved, and the guitar is on sale for a 30% discount off the original price. The sales tax is 5% of the sale price. Does Arnold have enough money to buy the guitar in September? justify your answer
Answer:
Yew, he has enough money to buy the guitar in september.
Step-by-step explanation:
300*0.75=225 300+225=525
650*0.35=195 650-195=455
sales tax: 455*0.05=22.75 455+22.75=477.75
Yes , Arnold have enough savings to buy the guitar
Savings amount of Arnold is $ 525 and the price of the guitar is $ 477.75
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the original price of the guitar be = $ 650
Let the initial savings of Arnold be = $ 300
Now , Arnold saved 75 % more than what he actually had
And , the equation will be
So , the new savings of Arnold is = 300 + ( 75/100 ) x 300
The new savings of Arnold is = 300 + ( 300 x 0.75 )
The new savings of Arnold is = 300 + 225
The new savings of Arnold is = $ 525
Now , the price of the guitar is discounted by = 30 %
And , the equation will be
So , the new price of the guitar after discount is = 650 - ( 30/100 ) x 650
The new price of the guitar after discount is = 650 - ( 650 x 0.30 )
The new price of the guitar after discount is = 650 - 195
The new price of the guitar after discount is = $ 455
Now , A sales tax of 5 % is priced on the guitar
And , the equation will be
So , the sale price of the guitar is = 455 + ( 5/100 ) x 455
The sale price of the guitar is = 455 + 22.75
The sale price of the guitar is = $ 477.75
Now , the new savings of Arnold is greater than the sale price of the guitar
$ 525 > $ 477.75
Therefore , Arnold have enough savings to buy the guitar
Hence , Yes , Arnold have enough savings to buy the guitar
Savings amount of Arnold is $ 525 and the price of the guitar is $ 477.75
To learn more about equations click :
https://brainly.com/question/10413253
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Mary has 2 1/3 yards of fabric.
She wants to cut the fabric into 1/6 yard strips.
Answer:
so what should we do it is incomplete answer
Step-by-step explanation:
42
Answer:
14
Step-by-step explanation:if she cut the pices into 1/6 pices she would have 14 of them so the answer is 14.
(-2,5), (-1,8), (0,6), (1,6), (2,7) is function or not a function help
HELP !!!!! What is the slope of the line that passes through (2, 12) and (4, 20)? (1 point)
A -2
B 2
C- -4
D 4
Answer: 4
Step-by-step explanation: you have to multiply
miles per
A person travels from New York to Washington at the rate of 45
hour and comes backs to the New York at the rate of
55 miles per hour. What is his average speed for the whole
journey?
A. 50 mi/hr
B. 60 mi/hr
C. 70 mi/hr
D. 80 mi/hr
(x - 2)^5 binomial expansion
Help is this correct !!!??
Answer:
Yes
Step-by-step explanation:
This one is for question #7
Answer:
B
Step-by-step explanation:
Answer:
b.) 350 = 0.25m + 300
Step-by-step explanation:
His earnings are a fixed amount, $300, and a variable amount that depends on the number of miles.
The variable amount depends on the number of miles he drives.
For 1 mile, he earns $0.25
For 2 miles, he earns $0.25 * 2
For m miles, he earns $0.25 * m
The total amount he earns is the fixed amount plus the variable amount
300 + 0.25m or 0.25m + 300
He earned $350, so we get the equation
350 = 0.25m + 300
Answer: b.) 350 = 0.25m + 300
please help me and show the work I will mark brainliest
Answer:
Day 3/4
Step-by-step explanation:
2 *2 = 4. 4 * 4 = 16. 16 * 16 = 256. 256 *256 = 65,536
What is angle U?
A) 129
B) 42
C) 34
D) 43
Step-by-step explanation:
4x+2+95=-7+17x
104=13x
x=8
for angle U=34 degrees
the answer is C
