Answer: it equals m
C). m
eric has 20 toy trains. Tommy has 3 times as many. How many toy trains does tommy have?
Answer:
20 times 3, do the math and you get
Answer:
60
Step-by-step explanation:
20x3=60 ............
PLS help lots of points for easy question
Answer:
Option C
Step-by-step explanation:
Given :
The conversion factor is 12in/1ft.And we need to find out that which cube has the larger surface area. We know that ,
[tex]\dashrightarrow [/tex] 1 ft = 12 inch
So the conversion factor becomes ,
[tex]:\implies[/tex] 12 in : 1ft
[tex]:\implies[/tex] 12in : 12 in
[tex]:\implies[/tex] 1 : 1
So both are same.Hence the both cubes have same surface area .
A person invests 6500 dollars in a bank. The bank pays 6.5% interest compounded annually. To the nearest tenth of a year, how long must the person leave the money in the bank until it reaches 22600 dollars?
BRAINLIEST
PLEASE HELP
10PTSS
A scale drawing of Julie's living room is shown below:
If each 2 cm on the scale drawing equals 4 feet, what are the actual dimensions of the room?
When renting a limo for prom, the number of people varies inversely with the cost per person. Originally
there were 6 people and the cost per person was $34. If the number of people changed to 12, what would be
the new cost per person?
Which number makes the following number sentence true 3+6=6+
Answer:
3
Step-by-step explanation:
Answer:
3 + 6 = 6 + 3
Step-by-step explanation:
3 + 6 = 6 + y
9 = 6 + y
y + 6 = 9
y + 6 - 6 = 9 - 6
y = 3
the table below shows the distribution of students in Mrs. boxer 6th grade class what is the ratio of the number of girls to the total number of students ? * it is 15 boys and 12 girls. Write each ration as a fraction
Answer:
Ratio is 12:27 ratio as a fraction is 12 over 27
Step-by-step explanation:
no need for explaination lolz
Hector used the quadratic formula to solve the polynomial equation
9x^2+ 8x - 2 = 0
Which number did Hector have to square when he used the quadratic formula?
Answer:
STEP
1
:
Equation at the end of step 1
(32x2 - 8x) - 2 = 0
STEP
2
:
Trying to factor by splitting the middle term
2.1 Factoring 9x2-8x-2
The first term is, 9x2 its coefficient is 9 .
The middle term is, -8x its coefficient is -8 .
The last term, "the constant", is -2
Step-1 : Multiply the coefficient of the first term by the constant 9 • -2 = -18
Step-2 : Find two factors of -18 whose sum equals the coefficient of the middle term, which is -8 .
-18 + 1 = -17
-9 + 2 = -7
-6 + 3 = -3
-3 + 6 = 3
-2 + 9 = 7
-1 + 18 = 17
Observation : No two such factors can be found !!
Conclusion : Trinomial can not be factored
Equation at the end of step
2
:
9x2 - 8x - 2 = 0
STEP
3
:
Parabola, Finding the Vertex:
3.1 Find the Vertex of y = 9x2-8x-2
Parabolas have a highest or a lowest point called the Vertex . Our parabola opens up and accordingly has a lowest point (AKA absolute minimum) . We know this even before plotting "y" because the coefficient of the first term, 9 , is positive (greater than zero).
Each parabola has a vertical line of symmetry that passes through its vertex. Because of this symmetry, the line of symmetry would, for example, pass through the midpoint of the two x -intercepts (roots or solutions) of the parabola. That is, if the parabola has indeed two real solutions.
Parabolas can model many real life situations, such as the height above ground, of an object thrown upward, after some period of time. The vertex of the parabola can provide us with information, such as the maximum height that object, thrown upwards, can reach. For this reason we want to be able to find the coordinates of the vertex.
For any parabola,Ax2+Bx+C,the x -coordinate of the vertex is given by -B/(2A) . In our case the x coordinate is 0.4444
Plugging into the parabola formula 0.4444 for x we can calculate the y -coordinate :
y = 9.0 * 0.44 * 0.44 - 8.0 * 0.44 - 2.0
or y = -3.778
Parabola, Graphing Vertex and X-Intercepts :
Root plot for : y = 9x2-8x-2
Axis of Symmetry (dashed) {x}={ 0.44}
Vertex at {x,y} = { 0.44,-3.78}
x -Intercepts (Roots) :
Root 1 at {x,y} = {-0.20, 0.00}
Root 2 at {x,y} = { 1.09, 0.00}
Solve Quadratic Equation by Completing The Square
3.2 Solving 9x2-8x-2 = 0 by Completing The Square .
Divide both sides of the equation by 9 to have 1 as the coefficient of the first term :
x2-(8/9)x-(2/9) = 0
Add 2/9 to both side of the equation :
x2-(8/9)x = 2/9
Now the clever bit: Take the coefficient of x , which is 8/9 , divide by two, giving 4/9 , and finally square it giving 16/81
Add 16/81 to both sides of the equation :
On the right hand side we have :
2/9 + 16/81 The common denominator of the two fractions is 81 Adding (18/81)+(16/81) gives 34/81
So adding to both sides we finally get :
x2-(8/9)x+(16/81) = 34/81
Adding 16/81 has completed the left hand side into a perfect square :
x2-(8/9)x+(16/81) =
(x-(4/9)) • (x-(4/9)) =
(x-(4/9))2
Things which are equal to the same thing are also equal to one another. Since
x2-(8/9)x+(16/81) = 34/81 and
x2-(8/9)x+(16/81) = (x-(4/9))2
then, according to the law of transitivity,
(x-(4/9))2 = 34/81
We'll refer to this Equation as Eq. #3.2.1
The Square Root Principle says that When two things are equal, their square roots are equal.
Note that the square root of
(x-(4/9))2 is
(x-(4/9))2/2 =
(x-(4/9))1 =
x-(4/9)
Now, applying the Square Root Principle to Eq. #3.2.1 we get:
x-(4/9) = √ 34/81
Add 4/9 to both sides to obtain:
x = 4/9 + √ 34/81
Since a square root has two values, one positive and the other negative
x2 - (8/9)x - (2/9) = 0
has two solutions:
x = 4/9 + √ 34/81
or
x = 4/9 - √ 34/81
Note that √ 34/81 can be written as
√ 34 / √ 81 which is √ 34 / 9
Solve Quadratic Equation using the Quadratic Formula
3.3 Solving 9x2-8x-2 = 0 by the Quadratic Formula .
According to the Quadratic Formula, x , the solution for Ax2+Bx+C = 0 , where A, B and C are numbers, often called coefficients, is given by :
- B ± √ B2-4AC
x = ————————
2A
In our case, A = 9
B = -8
C = -2
Accordingly, B2 - 4AC =
64 - (-72) =
136
Applying the quadratic formula :
8 ± √ 136
x = —————
18
Can √ 136 be simplified ?
Yes! The prime factorization of 136 is
2•2•2•17
To be able to remove something from under the radical, there have to be 2 instances of it (because we are taking a square i.e. second root).
√ 136 = √ 2•2•2•17 =
± 2 • √ 34
√ 34 , rounded to 4 decimal digits, is 5.8310
So now we are looking at:
x = ( 8 ± 2 • 5.831 ) / 18
Two real solutions:
x =(8+√136)/18=(4+√ 34 )/9= 1.092
or:
x =(8-√136)/18=(4-√ 34 )/9= -0.203
Two solutions were found :
x =(8-√136)/18=(4-√ 34 )/9= -0.203
x =(8+√136)/18=(4+√ 34 )/9= 1.092
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
ax² + bx + c = 0
In the quadratic formula the "b" coefficent gets sqaured
bx = 8x
b = 8
James says hello to every fourth grown every 6 boy he meets how often does James say hello to both the boy and girl together
Answer:
Six multipled by four to get how many girls and boy he will sayhrllo to.
In the "magic square" at the right, the four numbers
in each column, in each row, and in each of the two
diagonals, have the same sum. What value should N
have?
URGENT PLEASE HELP DUE ON THURSDAY 5/27/2021
Answer:
15
Step-by-step explanation:
Constant of Variation
State the relationship between the graphs of f(x) and g (x)
f(x) = -5/x, g )x) 5/x
a. f and g are reflections of each other about the y-axis.
b. f and g are reflections of each other about the x-axis.
c. g is shifted to the left 5 units relative to f, otherwise they are the same.
d. g is shifted to the right 5 units relative to f, otherwise they are the same.
Please select the best answer from the choices provided.
Answer:
B. f and g are reflections of each other about the y-axis.
Step-by-step explanation:
I calculated it logically
135°
Solve for «2.
62 = [?]
45°
142
86°
Enter
Answer:
look at the picture i have sent
Answer:
Answer:
Solution given:
135=<2+86
<2=135°-86=49°[ exterior angle is equal to the sum of the opposite Interior angle of a triangle]
what is the midpoint of AB with A(-1, 5) and B(6, -3) A (-4, 3.5) B (1, 2.5) C (2.5, 1) D (3.5, -4)
Answer:
Option C (2.5, 1) is the right alternative.
Step-by-step explanation:
The given points are:
A = (-1, 5) = (x₁, y₁)
B = (6, -3) = (x₂, y₂)
Now,
The midpoint on X-axis is:
= [tex]\frac{x_1+x_2}{2}[/tex]
= [tex]\frac{-1+6}{2}[/tex]
= [tex]\frac{5}{2}[/tex]
= [tex]2.5[/tex]
The midpoint on Y-axis is:
= [tex]\frac{y_1+y_2}{2}[/tex]
= [tex]\frac{5+(-3)}{2}[/tex]
= [tex]\frac{5-3}{2}[/tex]
= [tex]\frac{2}{2}[/tex]
= [tex]1[/tex]
Thus the midpoint of AB is "2.5, 1".
Hannah Borjas
What is the perimeter of the rectangle?
TH
65 feet
55 feet
A 240 feet
B 130 feet
с
3,575 feet
D
120 feet
Match the equation below with the following graph.
please help me !!!!!!
Answer:
okay!
Step-by-step explanation:
its B
Answer:
C)
Step-by-step explanation:
option—B&Dwe eliminate these two options
because remember quadratic function standard form
[tex] \displaystyle f(x) = {ax}^{2} + bx + c[/tex]
recall that, if
a is negative then the graph will flip upside downbut a is positive so it won't flip upside down therefore,
these two are our answer
option-A:it seems good but it's not the answer according to the given condition however it's true for the opposite of the given condition:
option-C:it's our answer since the condition x<-2 for the quadratic function tells us everything is input For x which is less than -2 the graph-c as well yields so
likewise the absolute value function. the condition tells everything is input for x which is greater than or equal to -2 the graph also says so
hence our answer is C
find the value of X and please show your work.
Answer:
x= -22
Step-by-step explanation:
3x=5x+44
subtract 2x from both sides and leave only x on one side 3x(-2x)=5x(-2x)+44
then you get
x=3x+44
then you subtract the 3x to both sides
x(-3x)=3x(-3x)+44
then you get
-2x=44
and divide 2 on each side so-
x= -22
Please help fast..........
Answer:
Where's the picture?
Shaun bought a new Nissan Versa from Planet Nissan for $11.199. How much was his sales tax if the
tax rate is 8.25%
Answer:
923.92
Step-by-step explanation:
11,199 x .0825 = 923.92
Elena is knitting a design on a sweater. The first row has 10 stitches and each
additional row has 7 stitches more than the row before it. How many stitches are in
the 12th row?
A.74
B.70
C.87
S.86
Answer: 87
Step-by-step explanation:
This will be solved using an arithmetic progression. The formula will be:
= a + (n - 1)d
where,
a = first term = 10
d = common difference = 7
n = 12
Therefore, 12 term will be:
= a + (n - 1)d
= 10 + (12 - 1) × 7
= 10 + (11 × 7)
= 10 + 77
= 87
Therefore, the number of stitches that are in the 12th row will be 87.
PLZ HELP FIRST RIGHT GETS BRAINLEST
A summer camp has 20 boys and 20 girls. Each day, all camper names are put in a hat, and one name is drawn to receive a prize. What are the odds in favor of boys names being drawn on three out of three nights?
Answer:
[tex]\frac{1}{8}[/tex] or [tex]\frac{9}{78}[/tex]
(see explanation)
Step-by-step explanation:
This problem is asking about compound probability, what is the probability of this even happening three times in a row.
Since there are 20 boy's names and 20 girl's names in the hat, one can say that half of the names in the hat. Assume that after drawing it from the hat, the name is put back into the hat. Therefore, on each night, there is a half-chance of the event happening. To find the probability of the event, one must multiply ([tex]\frac{1}{2}[/tex]) by itself (3) times,
[tex](\frac{1}{2})(\frac{1}{2})(\frac{1}{2})\\=\frac{1}{8}[/tex]
In this case, assume that after each drawing the name is not replaced into the hat. This means that after every draw, one must subtract (1) from both the numerator and denominator of the fraction when the fraction is in the un-simplified form.
[tex](\frac{1}{2})(\frac{19}{39})(\frac{18}{38})[/tex]
Simplify,
[tex](\frac{1}{2})(\frac{19}{39})(\frac{9}{19})[/tex]
[tex]\frac{9}{78}[/tex]
HELP HELP HELP HELP
Answer:
its option C
Step-by-step explanation:
because ages 51-60 have around 30 more in years and since the 51-60 is half way in the collums it would be 5 so then its 35 more voters :)
What is the weight (in grams) of a liquid that exactly fills a 465.0 milliliter container if the density of the liquid is 0.982 grams over milliliter? Round to the nearest hundredth when necessary and only enter numerical values, which can include a decimal point.
Answer:456.63
Step-by-step explanation:
The weight (in grams) of a liquid is 456.63 grams.
What is weight?Weight is a quantity representing the force exerted on a particle or object by an acceleration field, particularly the gravitational field of the Earth at the surface.
V = Volume of liquid = 182.8 milliliter
[tex]\rho[/tex] = Density of liquid = 0.135 grams over milliliter
We know that,'
mass= volume x density
= 465 x 0.982
= 456.63 grams
Learn more about weight here:
https://brainly.com/question/21965445
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Find the volume of a pyramid with a square base, where the perimeter of the base is
19.9 in and the height of the pyramid is 14.3 in. Round your answer to the nearest
tenth of a cubic inch.
Answer:
118.0 in^3
Step-by-step explanation:
How many millimeters are in 3.4 liters?
Answer:
3400 milliliters
Step-by-step explanation:
The universal set is the set of rational numbers. S is the set of integers.
Which represents SC?
{x|x is a real number}
{x|x is a rational number}
{x|x is a rational positive number}
{x|x is a rational non-integer}
Answer:
It's D on EDGE
Step-by-step explanation:
The compliment of the set S is {x|x is a rational non-integer}
What is union and intersection of sets?The union of two sets A and B is the set of all those elements which are either in A or in B, i.e. A ∪ B, whereas the intersection of two sets A and B is the set of all elements which are common. The intersection of these two sets is denoted by A ∩ B
The union of two sets is a new set that contains all of the elements that are in at least one of the two sets
The intersection of two sets is a new set that contains all of the elements that are in both sets
Given data ,
Let the universal set be represented as U
where the value of U is
U = {x|x is a rational numbers}
And , let the second set be represented as S,
where S = {x|x is an integer}
Now , the compliment of set S is given by = S'
And , S' = 1 - S
On simplifying , we get
S' = 1 - {x|x is an integer} and it belongs to U
So , S' = {x|x is a rational non-integer}
Hence , the set is S' = {x|x is a rational non-integer}
To learn more about union and intersection of sets click :
https://brainly.com/question/28278437
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How do I get the answer
Answer:
-9Step-by-step explanation:
[tex] - |3a + \sqrt{b} | [/tex]
By putting the values of a = -4 , b = 9,
[tex] = - |3 \times ( -4) + \sqrt{9} | [/tex]
[tex] = - | - 12 + 3| [/tex]
[tex] = - | - 9| [/tex]
= -(9)
= -9 (Ans)
Find the measure of the missing interior angle of the polygon.
Answer: 224
Step-by-step explanation:
The total degrees of a 7-sided shape is 900. You can find that out using the equation (n-2) times 180. Where n is the number of sides. If you add up all the interior angles they equal 676. Then just subtract 676 from 900. 900-676= 224 degrees. That is the missing interior angle.
Find the quotient: 5 1/7 ÷ 3
Answer:
12 /7
Step-by-step explanation:
theres no quotient
Answer:
The answer is: (12/7) OR (1 5/7) <-- (SIMPLIFIED)
Step-by-step explanation:
First you would divide your original fraction by 3 : (5 1/7 / 3= 36/21). Next, you would simplify the fraction you have know (36/21) and simplify it by dividing the numerator (top number) & denominator ( bottom number) both by 3. ( 36/3= 12) and ( 21/ 3= 7) . and so you would get your fraction 12/7 and or 1 5/7 ( if they want it to be simplified)
~ I rlly hope this helped you in any way, have a gr8 day/night my friend!~
i need help please giving brainlest which statement accurately describes the scatter plot
Answer:
I think it's B. but I'm not too sure. sorry if I'm wrong