Answer:
soln
given,
1dozen=rs 80
therefore,cost of 18 dozen pencils =80 × 18
=1440 Rs
how many real solutions does 3x² +24x = -48 have
Answer:
1
Step-by-step explanation:
3x² +24x = -48
3x² +24x + 48 = 0
x² +8x + 16 = 0
By using cross multiplication,
(x-4)² = 0
Therefore,
x-4 = 0
x = 4 (repeated)
Answer:
Only one real solution
Step-by-step explanation:
[tex]{ \tt{ {3x}^{2} + 24x = - 48}} \\ { \tt{ {3x}^{2} + 24x + 48 = 0 }} \\ { \tt{ {x}^{2} + 8x + 16 = 0}} \\ { \tt{(x + 4) = 0}}
(23)n=(1111)2 what is the value of n
Answer:
Hello,
n=6
Step-by-step explanation:
1111 in binary is 15 in décimal
(23) base n=15 ==>
2*n+3=15
2n=12
n=6
14. A certain real estate agent uses what he calls a step- strategy to sell houses. He puts a house on the market at a higher-than - expected selling price and if it hasn't sold in two weeks, he drops the price by 5%. If it still hasn't sold in another 2 weeks , he drops the price by another 5 %. After that , he continues to drop the price by 3% every two weeks until it reach es a cut -off amount assigned by the home owner , or the house sells , whichever comes first . If a house is originally listed at $200,000 and the homeowner sets a cut -off amount of $166,000 , what is the final selling price given that the house sells after being on the market for 9 weeks ? A ) $162,901.25 B) $164,737.48 $166,000.00 D ) $169,832.45
Answer:
vvvyaz
Step-by-step explanation:
szahvzlvzlz
Which relation is a function?
one seventh times the absolute value of the quantity x minus 3 end quantity minus 2 equals 9
The solutions of "one seventh times the absolute values of the quantity x minus 3 minus 2 equals 9" is 80 and -74
The absolute value of the quantity x minus 3 = |x-3|
The one seventh time the absolute value of the quantity x minus 3 minus 2 equal to 9
Then the equation will become
(1/7)×|x-3|-2=9
Solve the equation
(1/7)×|x-3|-2= 9
(1/7)×|x-3|= 11
|x-3| = 11×7
|x-3|= 77
The absolute value equation will become
x-3= 77
x-3 = -77
Solve both equation
x-3=77
x= 80
x-3 = -77
x= -74
Hence, the solutions of "one seventh times the absolute values of the quantity x minus 3 minus 2 equals 9" is 80 and -74
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What are the scale factors
Answer:
10 if going from the smallest to the largest or 1/10 if going from the smallest to the largest.
Step-by-step explanation:
Let s = scale factor
10s = 100 Divide both sides by 10
s = 10
Please help me
Find the slope of the line on the graph
Answer:
slope = 6/10
Step-by-step explanation:
Point 1: (0,2)
Point 2: (10,8)
m= Slope= Rise/run = (y2-y1)/(x2-x1) = (8-2)/(10-0) = 6/10
PLEASE HELP!!!! WIILL MARK BRAINLIEST
The drama club is selling tickets to their play to raise money for the show's expenses. Each student ticket sells for $6.50 and each adult ticket sells for $10. The auditorium can hold no more than 140 people. The drama club must make at least $1100 from ticket sales to cover the show's costs. If a represents the number of student tickets sold and y represents the number of adult tickets sold, write and solve a system of inequalities graphically and determine one possible solution.
Answer:
y ≥ -0.65x +110
y ≤ -x +140
45 students, 95 adults
Step-by-step explanation:
6.50x + 10y ≥ 1100 --> 10y ≥ -6.50x + 1100 --> y ≥ -0.65x +110
x + y ≤ 140 --> y ≤ -x +140
What is logs (4-7)+logs2 written as a single log?
O log 21
O log 26
O log,30
O log,56
Answer:
[tex]\log_556[/tex]
Step-by-step explanation:
Given:
[tex]\log_5(4 \cdot 7)+\log_52[/tex]
Multiply the 4 and 7:
[tex]\implies \log_528+\log_52[/tex]
[tex]\textsf{Apply the Log Product law}: \quad \log_ax + \log_ay=\log_axy[/tex]
[tex]\implies \log_5(28\cdot2)[/tex]
Multiply the 28 and 2:
[tex]\implies \log_556[/tex]
Test coming up need your help.
The linear equation that represents the number of pages that Lourdes still need to read will be y = y = 30x + 3/5y.
How to illustrate the information?It should be noted that an equation is used to show the relationship between the variables. It should be noted that the person is reading a biography.
It should be noted she reads 30 pages each day and after 9 days, he has read 3/5 of the pages.
Therefore, the linear equation that represents the number of pages that Lourdes still need to read will be:
y = (30 × x) + (3/5 × y
y = 30x + 3/5y.
Finally, this is the linear equation representing the pages that Lourdes read.
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help me please I need a good grade
Answer: x=32
Step-by-step explanation:
x-7+2x+1=90
x+2x-7+1=90
3x-6=90
3x=96
x=32
can someone awnser this for me please?
Answer:
1.Yes
2.Yes
3.No
4.Yes
5.Yes
6.No
I hope it's help
Answer:
1. yes
2.Yes
3.no
4.no
5.yes
6.yes
Step-by-step explanation:pa brainliest po thankyou
Can someone help me pls
Answer:
See below
Step-by-step explanation:
Can someone please help me does anyone know the rest of the problem I can’t sloved please help
The equation of the given function will be h=-0.096x+30.6. The mass will be 63.5 grams.
What is the equation of a line?A line is a one-dimensional shape that is straight, has no thickness, and extends in both directions indefinitely. The equation of line is given by,
y =mx + c
where,
x is the coordinate of the x-axis,
y is the coordinate of the y-axis,
m is the slope of the line, and
c is y-intercept.
1.) The slope of the given function will be,
Slope = (25.8 - 30.6) / (50 - 0) = -4.8/50 = -0.096
Now, substitute the values in the general linear equation,
h = -0.096x + c
30.6 = -0.096(0) + c
c = 30.6
Therefore, the equation of the given function will be h=-0.096x+30.6.
2.) Mass when the height is given as 24.5 cm, will be,
h = -0.096x + 30.6
24.5 = -0.096x + 30.6
24.5 - 30.6 = -0.096x
-6.1 = -0.096x
x = -6.1/-0.096
x = 63.5
Hence, the mass will be 63.5 grams.
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Find all real solutions of the equation, rounded to two decimals. (Enter your answers as a comma-separated list.)
x^4 − 4x^2 + 2 = 0
The real solution of the equation are +0.77, -0.77, +1.85, -1.85.
What is quadratic equation?A quadratic equation is a second-order polynomial equation in a single variable x, ax²+bx+c=0. with a ≠ 0 .
Given:
x^4 − 4x^2 + 2 = 0
(x²)² - 4x² + 2 =0
let us consider y= x², then the above equation become
y² - 4y + 2 =0
On further solving for 'y' we have
y= -b±√(b² -4ac) / 2a
y= 4±√(16-8)/2
y=4±2√2/2
y= 2 + √2, y=2-√2
Now, y= x²
x² = (2 + √2), x²= 2-√2
x= +1.8477, -1.8477 , +0.7653, -0.7653
x= +0.77, -0.77, +1.85, -1.85
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In the given figure AB = AC, BAD = 50 and AD = AE. find the value of x
Answer:
[tex]x=25^o[/tex]
Step-by-step explanation:
Angle sum of a triangle: [tex]< A + < B+ < C=180^o\\[/tex]
Types of Triangles: Isosceles, Equilateral, Scalene
Given AB = AC are two sides of the big triangle, then ΔABC is Isosceles.
Isosceles triangles are defined to have two equal sides and two equal angles (opposite the congruent(equal) sides).
Also, since ABC is defined as a triangle, BC is a straight line, a.k.a., it is a [tex]180^o[/tex] angle. As the image shows, the line, AD creates a right angle on one side, therefore it creates a right angle([tex]90^o[/tex]) on the other side.
Back to Isosceles Triangles, AD = AE means ΔADE is isosceles and <ADE = <AED
Using the Angle sum formula of a triangle, you can fill in <A, <B, and <C with the following:
<A=[tex]50^o[/tex]
<B=<C=y [This is because <ADE = <AED]
[tex]50^o+2y=180^o\\2y=130^o\\y=65^o[/tex]
Now, this means that <ADE=[tex]65^o[/tex] and <ADC =[tex]90^o[/tex]
<x is better seen as <EDC
<EDC+<ADE=<ADC
Since we know <ADE is 65 and <ADC is 90, we can plug in these to the formula above.
[tex]x+65^o=90^o\\x=25^o[/tex]
Which number sentence is not true?
A) -4.51 4.5
B) |0| < |-45|
C) |45|> 0
D) 14.5| |-45|
2) a number v divided by 12
Two positive integers that differ by 9 are in the ratio of 8 to 11. What is the value of the smaller of the two numbers?
The numbers are 24 and 33 so the smaller one is 24
Answer:
24 and 33 are the numbers among which 24 is the smallest.
Step-by-step explanation:
Let one positive integer be x, then another will be x - 9
Solve:
[tex]\sf \dfrac{x-9 }{x} = \dfrac{8}{11}[/tex]
cross multiply
[tex]\sf 11x-99= 8x[/tex]
collect like terms
[tex]\sf 11x-8x = 99[/tex]
simplify
[tex]\sf 3x = 99[/tex]
divide both sides by 3
[tex]\sf x = 33[/tex]
As the integer is positive, x = 33, then another will be 33 - 9 = 24.
convert the radio to a percent
Answer:
62.5%
Step-by-step explanation:
We only have the measurement of 2 corresponding sides AE and A'E'. We are going from the large to the small.
Let x = the scale factor
4x = 2.5 Divide both sides by 4
x = .625 to change that to a decimal multiply by 100
.625 x 100 = 62.5%
Answer this question please
The solution to the inequality is w ≥ 470 or w ≤ 530
How to determine the solution to the inequality?The given parameters are:
Number of words = 500
Absolute deviation = 30
Acceptable number of words = w
The absolute value inequality is represented as
|w - Number of words| ≥ Absolute deviation
So, we have
|w - 500| ≥ 30
Remove the absolute bracket
So, we have
w - 500 ≥ -30 or w - 500 ≤ 30
Add 500 to both sides of the inequality
So, we have
w ≥ 470 or w ≤ 530
Hence, the solution to the inequality is w ≥ 470 or w ≤ 530
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1) determine the result when 2x^2+4x+2 is subtracted from 4x^2-8x+3
Answer:
[tex]2x^2 - 12x + 1[/tex]
Step-by-step explanation:
Hello!
Given the expression: [tex]4x^2 - 8x + 3 - (2x^2 + 4x + 2)[/tex]
Simplify by combining like terms.
Like terms are terms with the same variable and raised to the same power.
Simplify[tex]4x^2 - 8x + 3 - (2x^2 + 4x + 2)[/tex][tex]4x^2 - 8x + 3 - 2x^2 - 4x - 2[/tex][tex]4x^2 - 2x^2 - 8x - 4x +3 - 2[/tex][tex]2x^2 - 12x + 1[/tex]The simplified form is [tex]2x^2 - 12x + 1[/tex].
One way to simplify an expression containing trigonometric functions is to first write the expression in terms of
---Select---
and
---Select---
only.
One way to simplify an expression containing trigonometric functions is to first write the expression in terms of sines and cosines only.
What is an expression?An expression can be defined as a mathematical equation which is used to show the relationship existing between two or more variables and numerical quantities.
The law of cosine.In order to determine the missing side length of a geometric figure with the adjacent and hypotenuse side lengths given, you should apply the law of cosine:
C² = A² + B² - 2(A)(B)cosθ
Similarly, the law of sine can be used to determine the missing side length of a geometric figure with the opposite and hypotenuse side lengths are given:
[tex]\frac{sinA}{a} =\frac{sinB}{b} =\frac{sinC}{c}[/tex]
In this context, we can reasonably infer and logically deduce that an expression containing trigonometric functions can be simplified by first writing the expression in terms of sines and cosines only.
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1.Find the missing side of each triangle. Round your answers to the nearest tenth if necessary.
Answer:
x=8
Step-by-step explanation:
So 6^2+x^2=10^2
36+x^2=100
x^2=64
x=8
Answer:
first put name of triangle abc than
angle _abc =180degree
10+6+c=180
16+c=180
180÷16=c
c=11.25
the value of x is 11.25 ans
how to write 673465 in standerd form
6 hundred and 73 thousand and 65..
Question
If the point (1, 4) is on the graph of an equation, which statement must be
true?
о A. The values x= 1 and y = 4 are the only values that make the
equation true.
O B. The values x = 1 and y = 4 make the equation true.
C. There are solutions to the equation for the values x= 1 and x = 4.
OD. The values x = 4 and y = 1 make the equation true.
SUBMIT
please help!!!!!!!!!!
HURRY IM TIMED Explain how to find the estimated sum of 5/8+2/9
Answer:
61/72
Step-by-step explanation:
first find the lowest common denominator - basically in this case the lowest number that goes into 8 and 9 - 8 x 9 which is 72, then
8 goes into 72 9 times so do 9 x the numerator (5)
9 x 5 = 45
Do the same for the second fraction, 9 goes into 72 8 times so do 8 x numerator (2)
8 x 2 = 16
Now add 45+ 16 = 61 ( this is your numerator)
and you keep the denominator (72) the same, so the answer is 61/72
Choose the estimate closest to the length of a pen: 30cm, 160mm, or 16mm.
The estimate closest to the length of a pen is 160mm
How to estimate the closest length of a pen?Estimation is when we use approximate values in a calculation to give an approximate, predicted answer rather than an exact answer.
We can estimate some lengths and distances using approximate values for measurements.
For example, 16 cm is approximately the length of a pen.
Therefore, the estimate of a pen is 16 cm.
Since the length in cm is not in the option, we have to convert.
Hence,
1 centimetres = 10 millimetres
16 centimetres = ?
cross multiply
estimated length of a pen = 160 millimetres.
Therefore, the estimate closest to the length of a pen is 160mm
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Kim drew a map of Mississippi Rive. The scale was 5 centimeters represents 120 mikes. Th as tusk length is 2320 miles. What is actual length in centimeters of the Mississippi River?
The actual length of the river on centimetres is 97 centimetres
How to find the length of the Mississippi River using the scale?The scale was 5 centimetres represents 120 miles.
Therefore, on the scale
5 centimetres = 120 miles
Now, let's find the length in centimetres if the river is measured as 2320 miles.
120 miles = 5 centimetres
2320 miles = ?
cross multiply
actual length of the river in centimetres = 2320 × 5 / 120
actual length of the river in centimetres = 11600 / 120
actual length of the river in centimetres = 96.6666666667
actual length of the river in centimetres = 97 centimetres.
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