Answer:
Cost of each individual book = $10.5
Step-by-step explanation:
Given:
Cost of 3 book set = $24.81
Amount save = $6.69
Find:
Cost of each individual book
Computation:
Assume:
Cost of each individual book = a
Total cost = 3a
So,
Total cost = $24.81 + $6.69
Total cost = $31.5
So,
3a = $31.5
a = $10.5
Cost of each individual book = $10.5
Which quadratic is best solved by taking the square root?
Answer:
x^2 - 9 = 0
Step-by-step explanation:
it is best to use square root method when there is no b value. in this equation, there is no b, only an a and c
If the graph of the linear equation ax-8y=15 has an x-intercept at (3,0), then what is the value of a?
====================================
Work Shown:
Plug in (x,y) = (3,0)
ax - 8y = 15
a(3) - 8y = 15 .... replace x with 3
3a - 8(0) = 15 ... replace y with 0
3a - 0 = 15
3a = 15
a = 15/3
a = 5
The equation updates to 3x - 8y = 15.
Please help me I don’t get this
Answer:
16ft.
Step-by-step explanation:
4+6+9=16ft
Note:
hope this helps u out :)
Also please mark brainliest
What is the y-intercept of the equation?
Write the equation of the line perpendicular to y = -5/2x + 1 that passes through the point (-5, -5).
Answer:
y = 2/5x - 3
Step-by-step explanation:
First, we have to know what the slope is. Being perpendicular to -5/2, the slope becomes 2/5.
Then, you substitute the slope and given point into the equation to find the y-intercept.
y = 2/5x + b
(-5) = 2/5(-5) + b
(-5) = (-2) + b
b = -3
So, the equation is
y = 2/5x - 3
The equation of the line perpendicular to y = -5/2x + 1 that passes through the point (-5, -5) is y = 2/5x - 3.
We have the Equation,
y= -5/2x + 1
Here, the slope is -5/2.
Since perpendicular line have negative reciprocal of the slope of the given line.
So, the slope of the line perpendicular is 2/5.
Using point-slope form of the equation to find the equation of the perpendicular line.
The point-slope form is given by:
y - y1 = m(x - x1)
Using the point (-5, -5) and the slope 2/5,
y - (-5) = 2/5(x - (-5))
y + 5 = 2/5(x + 5)
y + 5 = 2/5x + 2
y = 2/5x - 3
Therefore, the equation of the line perpendicular to y = -5/2x + 1 that passes through the point (-5, -5) is y = 2/5x - 3.
Learn more about Slope here:
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If f(x) = 4x + 1 and g(x) = 2x – 3, then (g(f(x)) =
Answer g(x)=x2 + 2
Step-by-step explanation:
What is the first step in solving the equation 2/3x+1/3+2=5?
Subtract 3 from each side of the equation.
Add 2 to each side of the equation.
Combine like terms.
Multiply each side of the equation by 5.
Answer:
use photomath it'll you all
Find the equation of the line that passes through (5, -1) and
(-10, -10)
Answer:
y = 0.6x – 4
or
y = 3/5x -4
Step-by-step explanation:
need answers ASAP.
Answer: If you have solved to get x=6 just plug that back into the problem. You get 50
Step-by-step explanation:
Answer:
[tex]x = 6[/tex]
[tex]AB = 50[/tex]
Step-by-step explanation:
Since [tex]B[/tex] is the midpoint of [tex]\overline A \overline C[/tex], [tex]AB[/tex] and [tex]BC[/tex] are equal in length.
[tex]AB=BC[/tex]
[tex]4x+26 = 6x+14[/tex]
[tex]12=2x[/tex]
[tex]x=6[/tex]
To find the length of [tex]AB[/tex], we can use substitution:
[tex]AB=4x+26[/tex]
[tex]=4(6)+26[/tex]
[tex]=50[/tex]
∴[tex]AB = 50[/tex]
Hope this helps
Find the x- and y-intercept of the line.
–3x + 5y = 75
a
x-intercept is 5; y-intercept is –3
b
x-intercept is –3; y-intercept is 5
c
x-intercept is –25; y-intercept is 15
d
x-intercept is 15; y-intercept is –25
Answer:
x intercept-25; y intercept is 15
There are 25 trees on the Jackson’s property. Twenty percent of the trees are oak trees. Which equation can be used to find the number of oak trees on the property?
Answer:
See below
Step-by-step explanation:
Number of oak trees
[tex] = \frac{25}{100} \times 25 \\ [/tex]
will mark brainliest please help me with
Answer:
-1
Step-by-step explanation:
i added all of the and that got me the answer
BRAINLIEST PLEASE
Answer:
6x-7
Step-by-step explanation:
Is that the answer you are looking for?
30 Points. i fr need to pass this test i dont feel like taking it again my senior year
Answer:
3x^3+2x^2+2x+5
Step-by-step explanation:
The answer is A
Please help i will mark brainliest which helps gain ranks
Answer:
It is proportional
Step-by-step explanation:
The pool is being filled at a constant rate.
Question: Find the missing side.
Answer:
17
Step-by-step explanation:
Use the Pythagorean Theorem, [tex]a^{2} +b^{2} =c^{2}[/tex]
In this situation, you would use the equation as [tex]8^{2} +15^{2} =x^{2}[/tex]
1. What is the measure of ∠ABC?
Answer:
I thought ik but i dont good luck!
Step-by-step explanation:
Answer:
∠ ABC = 55°
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
∠ ABD is an exterior angle of the triangle , then
6x + 5 = x + 45 + 3x
6x + 5 = 4x + 45 ( subtract 4x from both sides )
2x + 5 = 45 ( subtract 5 from both sides )
2x = 40 ( divide both sides by 2 )
x = 20
Then
∠ ABD = 6x + 5 = 6(20) + 5 = 120 + 5 = 125°
∠ ABD and ∠ ABC are adjacent angles and are supplementary, thus
∠ ABC = 180° - ∠ ABD = 180° - 125° = 55°
PLS HELP I WILL MARK BRAINLEST!!!!!!!!!!
On a coordinate plane, a dashed straight line has a positive slope and goes through (negative 1, negative 1) and (0, 1). Everything to the left of the line is shaded.
Which linear inequality is represented by the graph?
y > 2x + 2
y ≥ One-halfx + 1
y > 2x + 1
y ≥ One-halfx + 2
Answer:
the 3rd one
Step-by-step explanation:
i graphed it mentally and found out the slope was 2 and the y intercept is 1
Answer:
c
Step-by-step explanation:
a) Estimate the value of 50.75 x 0.18
Answer:9.135
Step-by-step explanation: I had have this answer
Answer:
9.135
Step-by-step explanation:
The blue dot is at what value on the number line? -10 -4
Answer:
The blue dot is at the value of -19
Step-by-step explanation:
There is a gap of 3 between each space
-19 -16 -13 -10 -7 -4
Answer:
-19
Step-by-step explanation:
i did it in khan and it was right
The area of a square depends on the length of its sides. Answer the questions below
regarding the relationship between the area of the square and the length of one side
of the square.
Answer:
The independent variable, x, represents the length of one side of the square, and the dependent variable is the the area of the square, because the the area of the square depends on the length of one side of the square.
A function relating these variables is D(x) = x^2.
So D(6) =36, meaning if 6 is the length of one side then 36 would be the area of the square.
Step-by-step explanation:
The question clearly stated that the area depends on the side length, making the side length the independent variable.
The formula for the area of a square is the side length squared.
Have a good day :)
The relationship between them is the formula for the area of a square is the side length squared.
What is the area of a square?The area of a square can be calculated as the square of the sides of a given figure.
The area of a square = side x side
The independent variable x is represents the length of one side of the square, and the dependent variable is the the area of the square, because the the area of the square depends on the length of one side of the square.
A function relating these variables is D(x) = x^2.
D(6) =36, meaning if 6 is the length of one side then 36 would be the area of the square.
It is stated that the area depends on the side length, making the side length the independent variable.
Therefore, The formula for the area of a square is the side length squared.
Learn more about the area;
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Question 4 asap thanks
Answer:
20x+45x+50 = 180
65x= 130
x = 2
so,
A = 20x = 20×2 = 40
hope u got it.
Anyone know how to do this??
Answer:
no
Step-by-step explanation:
PLS HELPPP I'LL MARK BRAINLEST AND GICE 100 POINTS
Answer: b
Step-by-step explanation:
PLEASE HELP ASAP!!! VERY EASY!
Lucia draws a square and plots the center of the square. She claims that any rotation about the center of the square that is a multiple of 45 will carry the square onto itself
Answer:
The second lucia’s claim is correct since any rotation that are multiple of 45 carry a square onto itself.
Step-by-step explanation:
Answer:
Lucian claim is incorrect because not all rotations that are multiples of 45 degrees carry a square onto itself
Step-by-step explanation:
90 degrees carries a square into itself and it IS a multiple if 45. But 45 degrees cannot carry a square into itself.
Which points on this vertical number line best represent the locations of 2.5 and minus 3 over 2 ?
Answer:
ok listen when looking at the graph the answer is easy its b
Step-by-step explanation:
Answer:
it is B
Step-by-step explanation:
because G and K , g is 2.5 and k -3/2
The graph of a proportional relationship is a straight line passing through the?
Answer:
Origin
Step-by-step explanation:
Here you go~
Evaluate the expression 5a + 12b for a = 5 and b = 12
PLEASE PLEASE help!
Answer:
I think the answer is 169
A truck driver earns $21.00 per hour for the first 40 hours worked in one week. The driver earns time-and-a-half, or $31.50, for each hour worked in excess of 40. The piece-wise function below represents the driver wage, w(h), as a function of the hours worked in one week, h. How much money does the truck driver earn in a week if he works 30 hours? *
Answer:
$21 x 30 = 630 (630 the answer)
Step-by-step explanation:
what is the missing term in the factorization?
18m^2-200 2(3m-10)(3m+?)
A). -100
B). -10
C). -3
D). 3
E). 10
Answer:
2 ( 3m -10) (3m+10)
Step-by-step explanation:
18m^2-200
Factor out 2
2 ( 9m^2 -100)
We recognize that this is the difference of squares ( a^2 -b^2) = (a-b)(a+b)
2 ( ( 3m)^2 - 10^2)
2 ( 3m -10) (3m+10)
Which equation is represented in the graph below?