It is to true!!!!!!!!!!!!!!!!!!!!!!!!
complete the square f(x)=x^2-12x-4
Answer:
Solve for x over the real numbers:
x^2 - 12 x - 4 = 0
Add 4 to both sides:
x^2 - 12 x = 4
Add 36 to both sides:
x^2 - 12 x + 36 = 40
Write the left hand side as a square:
(x - 6)^2 = 40
Take the square root of both sides:
x - 6 = 2 sqrt(10) or x - 6 = -2 sqrt(10)
Add 6 to both sides:
x = 6 + 2 sqrt(10) or x - 6 = -2 sqrt(10)
Add 6 to both sides:
Answer: |
| x = 6 + 2 sqrt(10) or x = 6 - 2 sqrt(10)
draw a circuit plz A 3 Ω resistor is connected in series to a 6 Ω resistor and a 12-V battery.
a. Draw the circuit.
can someone help me draw a better circuit plz
Answer:
I think the diagram is like this, I am not sure though.
Step-by-step explanation:
Answer:
brainliest please, sorry for the inconveniences
The figure is a parallelogram Solve for x.
Answer:
The value of x is 11.
Explanation:
The opposite sides of a parallelogram being equal, GD will be equal to 17. Equating, the value '11' is obtained.
I'll give BRAINLIEST PLEASE ANSWER
Answer:
C
D
Step-by-step explanation:
there's nothing to explain here. just basic
Answer: C
Step-by-step explanation: To simplify the first equation given, you use the process of elimination. There are three of the same variable, s, and that would be simplified to 3s. After that everything remains the same. Making C equivalent to the given equation.
Each car on a Ferris wheel travels 942.5 ft during 10 rotations of each ride. How high is each car at the highest point of each rotation?
Answer:
94.25 feet
Step-by-step explanation:
we can use the formula for the circumference of the circle to determine the diameter of the ferris wheel.
A bag contains 5 red marbles, 3 green marbles, and 2 blue marbles. If Nathan draws two marbles without replacing them, what is the probability he will draw 2 red marbles?
Answer:
It would be a 2/9 chance.
Step-by-step explanation:
So to start, the total amount of marbles is 10, as there's 5 red marbles, 3 green marbles, and 2 blue marbles.
With this, in the first draw, there's a 5/10 chance that a red one will be picked since there's 5 reds of the 10 total.
Since the marbles aren't put back, if a red's chosen in the first draw, it wouldn't be there in the second draw. Therefore in the second draw, there would be 4 reds and 9 in total.
With this, in the second draw, there's a 4/9 chance that a red one will be picked since there's 4 reds of the 9 total.
Now, combine these two probablities by multipliying them and you've got your answer!
5/10 * 4/9 = 20/90 ---> 2/9
Paragraph Finding the part, percent, and the whole Styles 1) Sixteen students in the school band play clarinet. Clarinet players make up 20 %v of the band. How many students are in the school band?
Answer:
80
Step-by-step explanation:
You know that 20% of the school band are 16 clarinet players, or 16 is 20% of the band.
You can set up the equation 0.2x = 16 and divide both sides by 0.2. You then get that x = 80, so there are 80 kids in the school band.
Quinn has a savings account with a balance of
$84.50. He withdraws $32.85, deposits $72.30,
and then withdraws $3.95. If Quinn gives his
brother 1/4 of his savings, how much does he
give his brother?
w(x) = −3x− 4; Find w(7)
Tonya has a rectangular rug as shown. The rug is 4 feet longer than it is wide. (Part A) Create an expression that can be used to determine the length and the width of the rug. Write your answers in terms of x .
Answer: [tex]x(x+4)[/tex]
Step-by-step explanation:
Given
The rug is 4 feet longer than its width
Suppose the length of the width is x
Length is given by x+4
So, the product of length and width is equal to the area of the rug
[tex]\Rightarrow x\left(x+4\right)=A\quad\quad [\text{A=Area of rug}][/tex]
Rose is drawing a portrait for her art class. She is using a sheet of paper what is 6 inches wide and 12 inches long. What is the area of the art paper in square feet?
Answer:
0.5 ft^2
Step-by-step explanation:
The area in square inches is (6 in )(12 in) = 72 in^2.
Recall that 1 ft^2 = 144 in^2.
Then
72 in^2 1 ft^2
--------------- * --------------- = 0.5 ft^2
1 144 in^2
find the equation of the line with a slope of 3/4 and passes through (4-2)
Answer:
y = 3/4x - 5
Step-by-step explanation:
An equation of a line can be written in slope-intercept form:
y = mx + b
where m is the slope and b is the y-intercept.
Let's plug in what we know.
The slope is 3/4.
y = 3/4x + b
To find b, we want to plug in a value that we know is on this line: in this case, I will use the point (4, -2). Plug in the x and y values into the x and y of the standard equation.
-2 = 3/4(4) + b
To find b, multiply the slope and the input of x(4)
-2 = 3 + b
Now, subtract 3 from both sides to isolate b.
-5 = b
Plug this into your standard equation.
y = 3/4x - 5
This is your equation. It has a slope of 3/4, and passes through (4, -2)
Hope this helps!
Linh needs 24 days to finish a task. Huy and Linh need 6 days to complete a task if they work together. How many days does Huy need to finish the task by himself? Write the answer?? ASAP PLSSSS
Answer:
most likely 12, because you can take half of the time with double the people.
Step-by-step explanation:
I hope this helped!
math question please help
Answer:
function is h(t) = -16t² + 22t + 6
max height is 13.5 feet
Step-by-step explanation:
The basic wage earned by a truck driver for a a 40 hour week is 560.00$ for overtime work the driver is paid one and a half hour time daily hourly rate calculate his overtime
Answer:
$7
Step-by-step explanation:
overtime = 1/2 x daily hourly rate
daily hourly rate = amount earned in a week / total hours worked
560 /40 = 14
overtime = 14/2 = 7
Find X and Y. ( solve using picture)
Step-by-step explanation:
y is 72, give other person brainly! :)
There were 162 people sitting in the school auditorium of which 1/9 were teachers while the rest were students how many teachers were sitting in the auditorium
Answer:
There are 18 teachers in the auditorium.
Step-by-step explanation:
1/9 of 162
1/9 * 162 = 18.
What is the volume of a cylinder, in cubic feet, with a height of 13 feet and a base diameter of 4 feet? Round to the nearest tenths place.
Answer:
V≈163.36ft³
Step-by-step explanation:
V=π(d 2)2h=π·(4 2)2·13≈163.36282ft³
Diameter= 4ft
Height=13ft
Heart me pls
Can someone please help me with math.
Answer:
A
Step-by-step explanation:
So lets look at the points on the graph.
Actually, lets just look at a and b(We only need 1 of these points, but it doesnt hurt to do a little extra to udnerstand it better)
If we count the coordinates for A, we get:
(-2, 3)
Remember, we need to use a scale factor of 2 for this.
So we need to multiply by 2.
This now gets us:
(-4. 6)
This looks like answer A, which has: (-4, 6) for A coordinates.
Now, lets check this with B coordinates:
(1, 3)
Multiply by 2:
(2, 6)
For answer A, is this the B coordinates?
Yup, answer A has B coordinates (2, 6)
So the answer is A!
Hope this helps! :)
Tickets to a museum cost $16 each. For a field trip, the museum offers a $4 discount on each ticket. How much will tickets for 32 students cost?
Answer:
the tickets will cost 384 dollars in all
WILL GIVE BRAINLIEST!!!!!!!!!!!! 20 points
Answer:
if they are same exact thing but mirrored, then just mirror it the way it needs to.
Example
-1 in the second by -3.4, 3.4 by 1
I need help with this
Jan says that a rhombus is a parallelogram and that every parallelogram is also a rhombus. Is Jan correct?
Answer:
No
Step-by-step explanation:
A parallelogram has opposite sides parallel and equal in length. Also, opposite angles are equal. Squares, rectangles, and rhombuses are all parallelograms. So all parallelograms are not rhombuses.
Find the indicated measure. Assume that lines which appear to be diameters are diameters.
Answer:
The measure of the angle is 120 degrees
Step-by-step explanation:
Here, we want to find the measure of the angle
Mathematically, the sum of angles at a point ( the center of the circle in this case) is equal to 360 degrees
We have the measures 150 degrees and 90 degrees; by adding this two and subtracting from 360, we will have the measure of the the marked angle
Thus, we have this as;
360 - (150 + 90)
= 360-240
= 120
Let A be the set of all strings of decimal digits of length 5. For example 00312 and 19483 are two strings in A. You pick a string from A at random. What is the probability that the string has no 4 in it
Answer:
0.59049
Step-by-step explanation:
Set of all digit strings of length 5
Digit range = (0 - 9) = 10
Length of digit = 5
Total possible outcomes = 10^5 = 100000
String without a 4 ;
Digit range = (0,1,2,3,5,6,7,8,9) = 9
Length of digit = 5
Required outcome = 9^5 = 59049
Required outcome / Total possible outcomes
59049 / 100000
= 0.59049
The ages of George and Genemy are in ratio 5:7 . Four years from now the ratio of their ages will be 3:4 .Find their present ages.
Answer:
Below in bold.
Step-by-step explanation:
Let x be George's age and y be Genemy's age.
x/y = 5/7
(x + 4)/ (y + 4) = 3/4
From equation 1, y = 7x/5 = 1.4x so substituting in equation 2 :
(x + 4)/ (1.4x + 4) = 3/4
3(1.4x + 4) = 4(x + 4)
4.2x + 12 = 4x + 16
0.2x = 16 -12 = 4
x = 4/0.2 = 20 = George's age.
So y = 1.4x = 1.4 * 20 = 28 = Genemy's age.
Rodriguez has saved $8500 for college expenses. He plans to spend $700 a month from his account. Write an equation to represent the situation.
Equation represents the given situation is [tex]y = \$(8500- 700x)[/tex].
What is equation?" Equation is defined as the algebraic expression which represents the relation between variables and the number using sign of equality."
According to the question,
Initial amount is Rodriguez account [tex]= \$8500[/tex]
Plans to spend a month from his account [tex]= $700[/tex]
[tex]'x'[/tex] represents the number of months
Amount spend in [tex]'x'[/tex] months [tex]= 700x[/tex]
[tex]'y'[/tex] represents the amount left in the account
As per given situation required equation is ,
[tex]y = \$(8500-700x)[/tex]
Hence, equation represents the given situation is [tex]y = \$(8500- 700x)[/tex].
Learn more about equation here
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(06.03)
A student wants to report on the number of books her friends read each week. The collected data are
below:
0 24 1 4 5 2 5 4
Which measure of center is most appropriate for this situation and what is its value? (2 points)
O Median; 2.
Median; 4
CE O
Mean; 2
O Mean: 4
Answer:
Median is best suitable, it = 4
Step-by-step explanation:
Median is best suitable as this data' measure of central tendency. As, mean is suitable in a normally distributed data. But, in skewed (uneven) distributions, where outliers exist, median is more suitable - as it is positional average, not effected by extreme values ie outliers.
Median :
Ascending order : 0 , 1 , 2 , 2 , 4 , 4 , 4 , 5 , 5
Number (N) = 9. So, median = (N+1/ 2)th observation
= { (9 +1) / 2 } th = (10 / 2)th = 5th observation = 4
Answer:
median 4
Step-by-step explanation:
Rewrite the function, differentiate, and then simplify
y= 3/√x
Answer:
[tex]\frac{dy}{dx}[/tex] = - [tex]\frac{3}{2x^{\frac{3}{2} } }[/tex]
Step-by-step explanation:
Differentiate using the power rule
[tex]\frac{d}{dx}[/tex] (a[tex]x^{n}[/tex] ) = na[tex]x^{n-1}[/tex]
Given
y = [tex]\frac{3}{\sqrt{x} }[/tex] = 3[tex]x^{-\frac{1}{2} }[/tex] , then
[tex]\frac{dy}{dx}[/tex] = - [tex]\frac{3}{2}[/tex] [tex]x^{-\frac{3}{2} }[/tex] = - [tex]\frac{3}{2x^{\frac{3}{2} } }[/tex]
y= -x + 4 please help
Answer:
(0,4)
Step-by-step explanation:
Graph the line using the slope and y-intercept, or two points.
Slope: −1y-intercept: (0,4)xy0413