Answer:
x=√2 or x=−√2
x=±√2
Step-by-step explanation:
12x^2=24
Step 1: Divide both sides by 12!
12x^2/12=24/12
x^2=2
Step 2: Take the square root!
x=±√2
The solution of the equation 12x² = 24 is x = ±√2.
What is Algebraic expression ?
Algebraic expressions are the idea of expressing numbers using letters or alphabets without specifying their actual values. The basics of algebra taught us how to express an unknown value using letters such as x, y, z, etc. These letters are called here as variables. An algebraic expression can be a combination of both variables and constants. Any value that is placed before and multiplied by a variable is a coefficient.
Here, the equation is :
12x² = 24
now, to solve for x :
divide both side by 12 :
x² = 24/12
x² = 2
take square root both side :
x = ±√2
Therefore, the solution of the equation 12x² = 24 is x = ±√2.
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In a sale, normal prices are reduced by 35% The normal price of a bed is $1200 Work out the sale price of the bed.
Answer:
£780
Step-by-step explanation:
as its a decrease
we subtract 35 from 100 to get 65
we then divide 65 by 100
to get 0.65
then we do 0.65*1200
to get the answer of $780
A percentage is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25 which is equal to 25%. The sale price of the bed is $780.
What are Percentages?A percentage is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25 which is equal to 25%.
To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.
Given that the normal price of a bed is $1200. Therefore, the sale price of the bed is,
Sale Price = $1200 × (100% - 35%)
= $1200 × 65%
= $780
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pick 1 of the 4 options that you feel dosent belong there with the other three .
Answer:
8+7
Step-by-step explanation:
8+7 adds up to 15
The other three add up to 14
someone help me with this question:
6 (x - 10)= 3 (x - 8)
(by the way please show your working)
Answer:
x = 12
Step-by-step explanation:
6 (x - 10)= 3 (x - 8)
6x - 60 = 3x - 24
6x - 3x = 60 - 24
3x = 36
x = 36/3
x = 12
Isabel's family decided to get rid of their cable TV. Originally they were paying $84.00 for the TV, internet and phone, but now they're paying $57.12. What was the percent the bill decreased by?
Answer:
32%
Step-byentrepreneurstion:
The first step is to calculate the decrease
= $84 - $57.12
= $26.88
Therefore the decrease can be calculated as follows
= 26.88/84 ×100
= 0.32×100
= 32%
Hence the bill decreased by 32%
graph the equation x = -2
Answer:
x=-2 would be a straight line right through -2 on the x-axis
Step-by-step explanation:
Answer:
a straight line going up and down by the x axis -2
Given that 1 inch = 2.54 cm, how many centimeters are there in 7 feet? Answers may be written using decimals form and should be rounded to the nearest hundredth when necessary
Answer:
There are 213.36 centimeters in 7 feet.
Step-by-step explanation:
It is given that:
1 inch = 2.54 cm
We have to find centimeters in 7 feet.
We will convert feet to inches.
1 feet = 12 inches
7 feet = 12*7 = 84 inches
Now,
1 inch = 2.54 cm
84 inches = 2.54 * 84
84 inches = 213.36 cm
Therefore,
There are 213.36 centimeters in 7 feet.
Which is closet to the surface area of the cylinder 6 yards and 12 yards in square yards
Answer:
you devide it and see what you get
Step-by-step explanation:
Answer:
This free surface area calculator determines the surface area of a number of common ... cube, cylinder, capsule, cap, conical frustum, ellipsoid, and square pyramid. ... the surface area of his cylindrical tank of height 5.5 feet and radius of 3.5 feet. ... She packs these into a rectangular box of similar dimensions as the drawer
An air conditioning system can circulate 410
cubic feet of air per minute. How many cubic yards of air can it circulate per minute?
410/27 cubic yards/meters = 15.19
Therefore, the air conditioning system can circulate 15.19 cubic yards per minute.
Jarvis deposited $5,000 into a savings account that earns 6% compound interest, compounded annually. How much interest did he eam after three years?
Answer:
$90
Step-by-step explanation:
A soccer ball is kicked up field as gloria runs to advance it further. The graph presents the distance that Gloria and the soccer ball are from the kicker over time.
How many seconds will it take for Gloria to connect with the ball?
A. 2 sec.
B. 3 sec.
C. 20 secs.
D. 30 secs
Solve the inequality:
6(2y - 4) + 2.6 > 14.7
Answer:
y>3.00833...
Step-by-step explanation:
Sofia le pagaron s/150 por trabajar dos días ¿Cuántos días le faltan trabajar para que le paguen 750?
Answer:
10 días
le pagan 75 por dia.
Step-by-step explanation:
150÷2 =75
75×10=750
Pls answer this . I need help
Answer:
The ans is -14 if you use desmos and start "finger counting" the slope of -3, y will equal -14 once it reaches (3,y)
What is 300% of 8? *
2400
24
240
0.24
Answer:
24
Step-by-step explanation:
300%=3 as a whole number
3*8=24
Answer:
24
Step-by-step explanation:
Im not sure why or how but its 24 :)
David drove 236 miles in 4 hours. On average how fast did he drive, in miles per hour?
David drove 236 miles in 4 hours. On average he drives 59 miles per hour.
A key idea in mathematics is time speed and distance. Questions like circular motion, boats, and streams, mobility in a straight line, clocks, races, etc. frequently involve the concepts of time and distance. You can get a clear understanding of the Relationship Between Time Speed and Distance, Units, Conversions, etc. from this article. Find Formula for Time and Distance, Solved Examples that thoroughly demonstrate the subject.
How quickly or slowly an object move is all about the concept of speed in motion. Distance divided by time is the definition of speed. When a specific piece of information is known, the three variables of speed, distance, and time are given to solve for one of the three variables.
[tex]speed = \frac{distance}{time}[/tex]
According to the question, David drove 236 miles in = 4 hours
so, he can drive = [tex]\frac{236}{4}[/tex] miles in 1 hour
= 59 miles.
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please it do in 6 min i need help with this one please The following points are from a dilation. If
B(0 , 5 ) and B'(x, 2 0 ), what is x?
Answer:
The value of x = 0
Step-by-step explanation:
Given
B(0, 5)B'(x, 20)To determine
The value of x = ?
If we closely observe the value of the y-coordinate of the image B'(x, 20), we can see that the y-coordinate of the image B' is 4 times the y-coordinate of the original point (0, 5).
i.e. y → 5×4 =20
It means the coordinates of the image B'(x, 20) can be determined by dilating the original point (0, 5) by a scale factor of 4.
Thus, the x-coordinate of B'(x, 20) can also be obtained by multiplying the x-coordinate of B(0, 5) by 4.
i.e. x → 4×0 = 0
Thus, the rule of dilation is:
P(x, y) = P'(4x, 4y)
Hence,
B(0, 5) → B'(4(0), 4(5)) → B'(0, 20)
Thus,
The value of x = 0 ∵ 0×4 = 0
Solve the system using substitution
x +y = 8
y = 3x
simplifyyyyyyyyyyyyyyyyyy
what are the angles for all of these i rlly need to know asap
Answer:
2. 40
3. 40
4. 140
5. 140
6. 40
7. 40
8. 140
Step-by-step explanation:
angles 2 (and 3) are supplementary angles of the given angle, this means that the given angle and either one of the two angles i just mentioned should add up to 180
angle 4 is vertical to the given, so this means that they are congruent
angle 8 corresponds to 4 and 5 corresponds to the given, so they are all congruent
angles 7 and 6 correspond to 3 and 2, so they are also 40
If possible can I get help on both?
Answer:
the first one 120 can be equal to 15×8
Step-by-step explanation:
15×8=15
Which number line shows how to find 4 and the opposite of 4?
Answer:
Second number line
Step-by-step explanation:
The function f is defined by the following rule.
f(x) = 4x +4
Complete the function table.
X
f(x)
5
- 2
2
3
4
Answer:
here it is the answer
Step-by-step explanation:
I guess that you were asking that or I'm wrong?
help pls fast
15. In a parallelogram ABCD, AB = 7.2 cm and the perpendicular from C on AB is 4.5 cm find its area.
Answer:
32.4 cm²
Step-by-step explanation:
Given the parallelogram ABCD ; with AB = 7.2 cm
Perpendicular from C on AB is the height of the parallelogram = 4.5 cm
Using the relation fir the area of a parallelogram :
Area of a parallelogram = base * height
Area of a parallelogram = 7.2 cm * 4.5cm
Area of parallelogram = 32.40cm²
Hence, Area of parallelogram is 32.4 cm²
What is the biggest lesson you have ever learned in your life?
Answer:
be Yourself.
Step-by-step explanation:
Answer:
I will sat the biggest lesson I have ever learned in my life is that be grateful what you have.
I need help on Question 25 please ASAP
Answer: - 13
USE BEDMAS to solve:
-3 · 5 + (-1)^4 · 8 - 6
= -3 · 5 + 1 · 8 - 6
= -15 + 8 - 6
= -13
Answer: -13
Step-by-step explanation:
used a calculator to solve
Which of the following belongs to the set of Whole numbers?
0
-5
1╱3
Answer:
0
Step-by-step explanation:
Answer:
0 is the only option that belongs to the set of Whole numbers.
Step-by-step explanation:
We know that whole numbers:
are general counting numbers 0, 1, 2, 3, 4, 5, 6, … and so on.contains natural numbers that start from 1 onwards.contains positive integers along with 0.In general, the set of whole numbers is:
W = {0, 1, 2, 3, ...}
Thus, the set of whole numbers DOES NOT include negative integers and fractions.
Therefore, 0 is the only option that belongs to the set of Whole numbers.
Question ( picture) down below.
Answer:
b
Step-by-step explanation:
Its 0
The local newspaper has letters to the editor from 50 people if this number represents 8% of all the newspaper readers how many readers does the newspaper have. I need help now I am taking a test please help me
Answer: 625
Step-by-step explanation:
Let x be the total number of readers have newspaper.
Given: 8% of x = 50
Since 8% = 0.08 [we divide percent by 100yo convert it in decimal ]
So, 0.08x =50
[tex]\Rightarrow\ x=\dfrac{50}{0.08}=\dfrac{5000}{8}[/tex]
[tex]\Rightarrow\ x= 625[/tex]
Hence, the total number of readers have newspaper = 625
Help aaaaaaaa how can I show my work
Answer:
make 1/4 2/8... Then Add, 3/8+2/8= 5/8.
Answer:
the correct answer is 5/8
the explanation is in the picture.
I hope it helps.
Hola/ Hi :) What yall doing?
Which number has a 5 that represents a value one thousand times greater than the value represented by the 5 in 41,253?
A
31,254
B
41,523
C
45,127
D
51,324
Answer:
B) 45,523
Hope this is correct