Answer:
He must sell each CD for R1,10 to make 40% profitStep-by-step explanation:
R40×5%=2
R40-2=R38
40%×38=R15,2
15,2+40=55,2
55,2÷50=R1,10
i didnt do the radio sum...
What is the correct answer?
Answer:
C. [tex]\sqrt{3x^2+21x}[/tex]
Step-by-step explanation:
When one multiplies two radicles, one multiplies each term in the radical by the term in the other radical, then one simplifies the result and puts the radical sign over the result. If there are any perfect squares one will take the terms out. In this scenario, such is not the case.
[tex]\sqrt{3x}*\sqrt{x+7}\\\\\sqrt{3x(x+7)}\\\\\sqrt{3x^2+21x}[/tex]
What is the length of the midsegment DE? (Round to the nearest tenth, if necessary) SOMEONE PLEASE BRO HELP ME OUT
Answer:
10.6 i think
Step-by-step explanation:
i think it's 10.6 because 18.9-8.3=10.6
Answer:
The midsegment is 13.6
Step-by-step explanation:
To calculate the mid segment, find the average of the two bases.
[tex]\frac{8.3+18.9}{2} =\frac{68}{5}=13.6[/tex]
HELP PLEASE important
Answer:
The answer seems like it is A.
Step-by-step explanation:
Remeber the domain is all real numbers. Hope this helps.
the fundamental unit of the metric system is ______. A. meter B. liter C. kilometer D. gram
plss answer it
Answer:
meter
Step-by-step explanation:
2.) Find g(-3) for g(x) = 2x + 2
Answer:
g(-3) = -4
Step-by-step explanation:
g(-3) = 2(-3) + 2
g(-3) = -6 +2
g(-3) = -4
Answer:
x=-1
Step-by-step explanation:
hope this helps
Simplify the expression: (1 + p)(8)
Answer: Not 100% sure but I think it is p=7
Answer:
8+8p
Step-by-step explanation:
you use distributive property! Multiply 8 by 1 and 8 by p and add it!
(1+p)8
8+8p
Which Quadrilateral might have sides measuring 3” 5” 8” and 6”?
Answer: a parallelogram
what is the mistake?
x-5=17+5
x=22
choose one:
- unknown value isn't 22
-work is not shown on both sides
-wrong inverse operation is used
-17+5 is not 22.
Answer:
x = 17+5-5
x=17
so this equation is wrong
Please give me the correct answer.Only answer if you're very good at math.Please don't use a link to a website.
Answer:
6 is the answer for your box :) Double checked :)
Step-by-step explanation:
25.12 = 1/3(12.56h)
multiply both sides by 3 to get rid of the fraction
75.36 = 12.56h
divide both sides by 12.56
6 = h
h = 6
Answer:
h = 6
Step-by-step explanation:
25.12=12.56/3 h
25.12 x (3/12.56) = h
h = 6
An increase of 42.5% would result in a multiplier of what?
and a decrease of 42.5% would result in a multiplier of what?
Answer:
is the 23% going into the 42.5
Which number line shows the solution to the inequality n + 6 < 4?
Answer:
D) The very last one
Step-by-step explanation:
n + 6 < 4
n < -2
< means it's an open circle and goes in the LEFT direction
Will give brainliest
What is the equation of the line perpendicular to y = 1/4x – 5 through the point (4,3)?
y-yi=m(x-xi)
y-3=1/4(x-4)
y-3=x-4/4
4y-12=x-4
4y+x-12+4=0
4y+x-8=0
so the equation of
the line perpendicular
to
y=1/4-5 through
the point(4,3)
is4y-x-8=0
find The distance between the point A= (1,2). B= (7,-6)
A rectangle has a perimeter of 26 inches. All of its side lengths are doubled to create a new rectangle.
a. How does the perimeter of the new rectangle compare to the perimeter of the original rectangle?
b. How does the area of the new rectangle compare to the area of the original rectangle?
Answer:
a) the new perimeter is 2 times the old perimeter
b) the new area is 4 times the old area
Step-by-step explanation:
b) the doubling of the length and width affects the area formula like this:
old triangle area formula = 1/2bh
new triangle area formula = 1/2(2b)(2h), you see the 2 x 2 causes the area to be 4 fold
4. Describe the zeroes of
f(x) = 4x^5 + 48x^4 + 144x^3
with multiplicity
with multiplicity
Answer:
392
Step-by-step explanation:
Answer:
Final answer: x=0 m:3 and x=-6 m:2
Step-by-step explanation:
1. 4x³(x²+12x+36)- Divide by greatest common factor, to simplify.
2. 4x³(x+6)(x+6)- Factored
3. 4x³ = 0 Set each factor equal to zero
4. x+6=0 x+6=0
So, x= -6, two times, mulitiplicity 2
So, 4x³=0, so x=0 three times, mulitiplicity 3
Final answer: x=0 m:3 and x=-6 m:2
Express 2 x 2 x 2 x 2 x 2 in index notation.
Given:
The expression is
[tex]2\times 2\times 2\times 2\times 2[/tex]
To find:
The index notation of the given expression.
Solution:
Index: The power of a number and a variable is called its index.
Index notation: The expression which has a base and a power.
In the given expression 2 is multiplied 5 times, so by using the property of exponent we get
[tex]2\times 2\times 2\times 2\times 2=2^{1+1+1+1+1}[/tex] [tex][\because a^ma^n=a^{m+n}][/tex]
[tex]2\times 2\times 2\times 2\times 2=2^{5}[/tex]
Therefore, the index notation of the given expression is [tex]2^5[/tex].
100% of what number is 27? Provide an exact fraction answer
Answer:
Your answer is 27
I hope I helped, would appreciate brainliest! ;)
Step-by-step explanation:
'Percent (%)' means 'out of one hundred':
27% = 27 'out of one hundred',
p% is read p 'percent',
27% = 27/100 = 27 ÷ 100
Calculate percentage:
'Percentage' is obtained by multiplying 100 by 27%
27% of 100 is equivalent to multiplying them:
27% × 100 = ?
27% × 100 =
(27 ÷ 100) × 100 =
(27 × 100) ÷ 100 =
2,700 ÷ 100 =
27
Proof.
How do we check the result?
If 27% × 100 = 27 =>
Divide 27 by 100...
... And see if we get as a result: 27%
Note:
100/100 = 100 ÷ 100 = 100% = 1
Multiply a number by the fraction 100/100,
... and its value doesn't change.
n/100 = n%, any number.
Calculate the percent value:
27 ÷ 100 =
0.27 =
0.27 × 100/100 =
(0.27 × 100)/100 =
27/100 =
27%
So we have proved that the calculations are correct.
Answer:
Percentage of
27% of 100 = 27
Answer:
27%
Convert fraction (ratio) 27 / 100 Answer: 27%
what is the answer I don't know how to solve this
please help! it’s due in 3 hours and i really need the answers!
*ignore the top one
Answer: Third option
Step-by-step explanation: Hope this helps :)
Answer:
C.
Step-by-step explanation:
14/3 = 4.66
/2/=2.33
-14/4 = -3.5
So the numbers are 4.66, 4.3, 2.33, 1.3, -2 and -3.5
So the numbers are -14/4, -2, 1.3,/2/, 4.3, 14/3
I hope I helped! Pls leave a rating and a heart if I did!
Algebra please solve 7(2x - 3y) + 4(3y - 5x) =
Answer:
-8x-9y
Step-by-step explanation:
Hey There!
So basically this problem is asking you to simplify this expression using distributive property
The first step would be to distribute 7 into what is inside the parenthesis (2x and -3y)
2x*7=14x
-3y*7=-21y
so now we have 14x-21y + 4(3y-5x)
the next step would be to distribute 4 to what is inside the parenthesis (3y and -5x)
4*3y=12y
4*-5x=-20x
so now we have 12x-21y-20x+12y
the final step is to combine like terms
12x-20x=-8x
-21y+12y=-9y
so the simplified version of 7(2x - 3y) + 4(3y - 5x) is -8x-9y
Answer:
14x-21y+12y-20x. 14x-20x+12y-21y. -6x-9y
An artist buys 36 tubes of oil paint, 6 paintbrushes, 3 canvases, and 2 jars of paint thinner. What is the ratio of paintbrushes to tubes of oil paint?
PLS SOMEONE HELP ASAP!!
Instructions for a craft project say that the length of a piece of red ribbon should be 7 inches less than the length of a piece of blue ribbon.
How long is the blue ribbon if the red ribbon is 12 inches?
*working backwards ;)
If y = x² + 2x + 3, find the value of y when x = -1
Answer:
y = 2
Step-by-step explanation:
Given
y = x² + 2x + 3 ← substitute x = - 1
y = (- 1)² + 2(- 1) + 3 = 1 - 2 + 3 = 2
Out of a total of 50 high school students, 14 plan to go to the basketball playoff game Friday night if there are 1450 students at the school, which is the best prediction of how many of the students will attend the game?
Answer:
1131 students, is the best prediction.
Step-by-step explanation:
1450 divided by 50 = 29
50 - 14 = 36
36 x 29 = 1131
The square of a number 60 greater than half of the number. Form a
quadratic equation and solve to determine the possible values of the
number.
Answer:
The number could be [tex]-7.5[/tex] or [tex]8[/tex].
Step-by-step explanation:
I'm going to assume this means "The square of a number is 60 greater than half of the number." Let the number be [tex]x[/tex]. The square of [tex]x[/tex] will be [tex]x^{2}[/tex]. "is" denotes that we use the "[tex]=[/tex]" sign, so our equation so far is [tex]x^{2} =[/tex] . Half of [tex]x[/tex] is [tex]\frac{1}{2}x[/tex], and "greater than" implies addition, so [tex]60[/tex] greater than [tex]\frac{1}{2}x[/tex] is [tex]\frac{1}{2}x+60[/tex]. Therefore, the equation is [tex]x^{2} =\frac{1}{2}x+60[/tex].
Solving for [tex]x[/tex], we get:
[tex]x^{2} =\frac{1}{2}x+60[/tex]
[tex]2x^{2} =x+120[/tex] (Multiply both sides of the equation by [tex]2[/tex] to get rid of the fraction)
[tex]2x^{2} -x-120=0[/tex] (Subtract [tex]x+120[/tex] from both sides of the equation to make it easier to solve)
[tex]2x^{2} +15x-16x-120=0[/tex] (Split [tex]-x[/tex] into [tex]15x-16x[/tex] to make the LHS easier to factor)
[tex]x(2x+15)-8(2x+15)=0[/tex] (Take a common factor out of the first two terms and the last two terms)
[tex](2x+15)(x-8)=0[/tex] (Take another common factor out)
[tex]2x+15=0,x-8=0[/tex] (Zero Product Property)
[tex]x=-7.5,8[/tex] (Solve)
Hope this helps!
linda races her bicycle for 132 ft. a wheel of her bicycle turns 33 times as the bicycle travels the distance. what is the diameter of the wheel
What is the X intercept of the quadratic function.
Answer:
1 and 3
Step-by-step explanation:
it is where the graph meets the x axis line
Find the value of 3y + 4 given that - 2y + 6 = 2.
Simplify your answer as much as possible.
Answer:
10
Step-by-step explanation:
to find the answer for 3y + 4 we have to find the value of y.
we can find that by using the second equation.
-2y+6=2
-2y+6-2 =0 (subtract 2 from both the sided)
4= 2y (we will bring the -2y to the other side of the equation and then subtract the 6-2 to get the 4)
4/2=y (divide by 2 on both the sides)
∴ y=2
now we will plug in the y of value that we see as -2 into the first equation.
∴ 3y+4 will become
= 3(2)+4
=6+4
=10
hope this helps!!
WILL GIVE BRAINLIEST!!
(LOOK AT PHOTO)
Answer:
Five less than the number than....... 8/n - 5 +7
Eight more than the product........ 8 +7n - 2
Five times the sum..... 5(n+7)
Twice the difference.... 2 (8-n)
Answer:
Blue:
[tex] \frac{8}{n} - 5 + 7[/tex]
Green:
[tex]8 + 7n - 2[/tex]
Orange:
[tex]5(n + 7)[/tex]
Purple:
[tex]2(8 - n)[/tex]