Answer:
25
Step-by-step explanation:
Add 65+40 which is going to give you 105 then once you get 105 subtract 65-40 which is going to give you 25 the 105 is the total so the whole answer is 25
Consider the first five steps of the derivation of the Quadratic Formula.
What is the next step?
(See the photo)
Answer:
B
Step-by-step explanation:
some people can't understand lafossefams joke
The method of completing the squares method will be used for the next step. The next step would be ( x+ (b/2a) )^2 = -c/a + b^2/(4a^2)
What is the expansion of square of sum of two terms?Suppose that two terms are 'a' and 'b'.
Then, their sum's square is expanded as:
[tex](a+b)^2 = a^2 + 2ab + b^2[/tex]
For this case, we're given the quadratic equation with its 4 steps of solution as:
[tex]ax^2 + bx + c = 0\\\\\dfrac{ax^2}{a} + \dfrac{bx}{a} + \dfrac{c}{a} = 0\\\\x^2 + \dfrac{bx}{a} + \dfrac{c}{a} = 0\\\\x^2 + \dfrac{bx}{a} = -\dfrac{c}{a}\\\\x^2 + \dfrac{bx}{a} + \dfrac{b^2}{4a^2} = -\dfrac{c}{a} + \dfrac{b^2}{4a^2}[/tex]
We've to proceed to the next step.
In the left hand side, we can use the formula [tex](a+b)^2 = a^2 + 2ab + b^2[/tex], where [tex]\rm a \: is \: x^2, and \: b \: is \: \dfrac{b}{2a}[/tex]
Thus, we have:
[tex]x^2 + \dfrac{bx}{a} + \dfrac{b^2}{4a^2} = x^2 + 2 \times x \times \dfrac{b}{2a} + \left(\dfrac{b}{2a} \right)^2 = \left( x + \dfrac{b}{2a} \right)^2[/tex]
We expressed the left sided expression in this form so that the variable 'x' (which is assuminly the only variable in the equation, whose value is to be known) gets packed into single container and not spread throughout with different powers.
Now, we can use square root and then subtraction and division of some terms which will make 'x' stay on one side of the equation, and rest of the constants on other side, as the value of 'x' for which the considered equation [tex]ax^2 + bx + c = 0[/tex] is correct.
The next step of the solution, therefore, is:
[tex]\left( x + \dfrac{b}{2a} \right)^2 = \dfrac{-c}{a} + \dfrac{b^2}{4a^2}[/tex]
Learn more about completing the squares method here:
https://brainly.com/question/16800259
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Mike traveled to Greensboro by car. Going there took 6 hours, and the return trip was four hours. Mike averaged a speed of 81 miles while returning. Find the average of the trip there.
Answer: 64.8 mph
Step-by-step explanation:
Given
Arriving time is 6 hours
return time is 4 hours
The average speed of returning 81 mph
Distance traveled while returning
[tex]\Rightarrow d=81\times 4=324\ miles[/tex]
the average speed of the entire trip is
[tex]\Rightarrow v_{avg}=\dfrac{2\times 324}{6+4}=\dfrac{648}{10}=64.8\ mph[/tex]
Write in slope-intercept form an equation of the line that passes through the point (r,p) with slope q.
The equation is y =
Answer:
y=q(x-r)+p
Step-by-step explanation:
y-y1=m(x-x1)
y-p=q(x-r)
y=qx-qr+p
y=q(x-r)+p
Ms. Bobb needs to order more notebooks. Office Max charges $42 for 12 notebooks. Staples charges $60 for 15 notebooks. Which store has a better deal? Explain.
Answer:
Office Max
Step-by-step explanation:
Office Max charges $3.50 for each notebook. Staples charges $4 for each notebook. You can achieve this answer by dividing cost by the number of notebooks.
Heidi is making a tower using sugar cubes. Each sugar cube has a side length of 1 cm. Each layer has 4 sugar cubes, arranged in a 2 by 2 pattern. The completed tower has a volume of 24 cm3. How many layers of sugar cubes are in the tower?
Answer:
3 layers
Step-by-step explanation:
Given
[tex]L = 1cm[/tex] --- side length of the cube
Each layer = 2 * 2 cube
[tex]Volume = 24cm^3[/tex]
Required
Determine the number of layers
First, we calculate the volume of each layer:
The length of the layer is:
[tex]Length = 2 * L[/tex]
[tex]Length = 2 * 1cm[/tex]
[tex]Length = 2cm[/tex]
Next, we calculate the volume of each layer:
[tex]Volume = Length^3[/tex]
[tex]Volume = (2cm)^3[/tex]
[tex]Volume = 8cm^3[/tex]
The number of layer is calculated by dividing the volume of the tower by the volume of each layer
[tex]Layers = \frac{24cm^3}{8cm^3}[/tex]
[tex]Layers = 3[/tex]
PLEASE HELP ME !!! :(
Estimate 2395 dividied by 82 = ?
show your work step -by-step
Answer:
13
Step-by-step explanation:
82 * 10 = 820
820 * 3 = 2,460
Please Help ASAP!!! 24-28 Thanks!
Answer:
C - A -B - C -A
Step-by-step explanation:
Independent Practice
Simplify the expression. 8 +2 2
A.
8 28 square root of 2
B.
4 2
C.
2 10
D.
6 26 square root of 2
Answer:
B.
4 2
Step-by-step explanation:
Simplify the expression.
9-fraction
The result can be shown in multiple forms.
Exact Form:
8
+
2
√
2
Decimal Form:
10.82842712-square root
…
Simplify the expression.
8- subtracting
Simplify the expression.
12-addition
Evaluate.
30
=
30
The equation is always true.
True
"A candy store sells different types of candy in paper pyramids. The medium-sized pyramid has a base length of 5 inches and a base width of 3 inches. The height of the paper container is 8 1/2 inches. what is the volume of the pyramid, measured to the nearest 10th of the cubic inch?" Please help!
Answer:
088y765
Step-by-step explanation:
Enter a fraction equivalent to 0.4. Use only whole numbers for numerators and denominators.
Answer:
2/5
Step-by-step explanation
!s the answer.
"The Martin family's truck gets an average of 25 miles per gallon of fuel. Predict how many miles they will be able to get from 7 gallons of fuel by using equivalent rates." (Explain with fractions/ equivalent rate in detail pls)
Answer:
175 miles
Step-by-step explanation:
Average of 25 miles per gallon of fuel
Miles : gallons = 25 : 1
Predict how many miles they will be able to get from 7 gallons of fuel by using equivalent rates
Let x = number miles
Miles : gallons = x : 7
To find x
25 : 1 = x : 7
25/1 = x/7
Cross product
25*7 = 1*x
175 = x
x = 175 miles
Number miles = 175
Plz help due tomorrow
Answer:
a) The addition property of equality
b) The division property of equality
Step-by-step explanation:
Here, we want to know the correct step to use
From the given question, to proceed;
All we have to do is to move the value that has a negative value on the left hand side to the right hand side
what accompanies this is the addition of the both terms, on the right hand side
After this, we now proceed to divide the sum by the coefficient of x
Thus, the correct choices are;
a) The addition property of equality
b) The division property of equality
The length of jade's garden is 4w
Answer:
and? What about Jade's garden?
Step-by-step explanation:
Answer:
There is no problem to go with this statement, please use full questions.
Step-by-step explanation:
6.
Find the slope of the line.
A. [tex]-\frac{2}{3}[/tex]
B. [tex]\frac{2}{3}[/tex]
C. [tex]\frac{3}{2}[/tex]
D. [tex]-\frac{3}{2}[/tex]
I'm in need of assistance-
Answer:
q
Step-by-step explanation:
what does 5/8 plus 3/4 equal
Answer:
1 3/8
Step-by-step explanation:
Help I don’t know the answer
How many have more than one quart of water?
Answer:
I think 3 have more, but I am not 100 percent
Erin loves to play sports! She has earned 3 tennis trophies, 4 basketball trophies, 7 soccer trophies, and 1 volleyball trophy.
Answer: R = 3/7
Step-by-step explanation:
The complete question is:
Erin loves to play sports! She has earned 3 tennis trophies, 4 basketball trophies, 7 soccer trophies, and 1 volleyball trophy.
What is the ratio of Erin's tennis trophies to soccer trophies?
This is simply the quotient between the number of tennis trophies and the number of soccer trophies.
She has 3 tennis trophies and 7 soccer trophies, then the ratio is:
R = 3/7
Can someone help me plz
Answer:
easy
x=4 y=7 or
x=4 y=-1
Step-by-step explanation:
x=4 y=7 or
x=4 y=-1
Find the value of x. Round to the nearest degree.
21
10
15
Answer:
556 degrees i think
Step-by-step explanation:
answer both for ( brain list, thanks, 5 star review)
Answer:
1. 1 1/12
2. 1/10
Answer:
1. or 1 or 1.083
2. or 0.1
Step-by-step explanation:
Find the value of x this is for my homework and I cant find it
Answer:
33 degrees
Step-by-step explanation:
180 - 23 - 124 = 33 because all interior angles of a triangle add up to 180 degrees.
Help please don’t answer if you don’t know also I’ll give brainliest
Answer:
10x=4
x=4/10
x=2/5
Step-by-step explanation:
Answer:
3x+4x+3x=12-8
10x=4
x=4/10
x=2/5
x= o.4
hope you have a nice day
( •_•)>⌐■-■ ( ⌐■_■)
-kay
solve and get brainliest!!
Answer:
$477
Step-by-step explanation:
Net Price:$ 450.00
+ Sales Tax (6%):$ 27.00
Total Price:$ 477.00
Answer:
642 right??
Step-by-step explanation:
Was this the answer you were looking for?
WILL GIVE BRAINLIEST
PLEASE HELP!!!!!!
if 208 students take the bus, determine the total number of students that walk and bike to school.
48% walk
26% take the bus
21% car
5% bike
Answer:
424 students
Step-by-step explanation:
208*(100/26)=800
800*(.48+.5)=424
Please help me with this!!!
Answer:
x = 3 and y = 8
Step-by-step explanation:
The Opposite sides of a parallelogram are equal and parallel. It means,
[tex]\dfrac{y}{2}=4\\\\y=8[/tex]
Also,
5x - 6 = 3x
Taking like terms together,
5x -3x = 6
2x = 6
x = 3
So, the values of x and y are 3 and 8 respectively.
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
Answer:
option A
Step-by-step explanation:
it says that 1.2 with the mark percent representing the function percent it is also increasing
Therefore, it's a
Glad I can help tell me if you need anything else!
true or false statement?
-16 > -f , if f = 15
HELP what is the coefficient of 14x?
multiplication
14
14x
x
Coefficient of 14x is 14
Coefficientis the number in front of the letter. For example, coeffient of 2b is 2. When there is no number in front of the letter the coefficient is 1.