Answer:
Step-by-step explanation:
im guessing this is a system of equations so:
-7-y=13
8x+y=-14
so you can cancel them, out by adding
after you do the math you should get x=-1
substitute for y and you get y=-6
Keisha's Solution
David’s Solution
Whose procedure is correct?
Answer:
both are correct
Step-by-step explanation:
the 4th raw of the keisha's one same to first raw of david's.david's one is simple & keisha's isn't
write the formula of the parabola that has x-intercepts (1.3,0) and (-1.3,0), and y-intercept (0,169)
Answer:
y= 169 − [tex]100^{2}[/tex]
Step-by-step explanation:
A parabola is a symmetrical plane curve that forms when a cone intersects with a plane parallel to its side.
Standard form of a quadratic function represent a parabola.
The equation of parabola is [tex]y=-x^{2} +1.69[/tex]
Parabola:We have to find the formula for the parabola that has x- intercepts [tex](1.3,0)[/tex] and [tex](-1.3,0)[/tex], and y- intercept [tex](0,1.69)[/tex]
So that, the intercept form of the quadratic equation is;
[tex]y=a(x-p)(x-q)[/tex]
where [tex](-1.3,0)=(p,0)[/tex] and [tex](1.3,0)[/tex] is[tex](q,0)[/tex].
Since, with the vertex being at the y axis and the intercepts at the x axis means that the parabola opens down.
So that,
[tex]1.69=a(0+1.3)(0-1.3)\\ \\1.69=-1.69 a\\ \\a=-1[/tex]
Substituting value of a in above equation.
[tex]y=-1(x+1.3)(x-1.3)\\\\y=-1(x^{2}-1.69 )\\\\y=-x^{2} +1.69[/tex]
Hence, the equation of parabola is [tex]y=-x^{2} +1.69[/tex]
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A bank determines the amount a borrower owes using the formula A=p ( 1+r)t where A is the total amount owed p is the amount borrowed r is the percent interest rate expressed as a decimal, and t is the number of years. To the nearest dollar, what is the total amount of money that would be owed if $150,000 at 6% for 15 years
Answer:
$679,857.92
Step-by-step explanation:
The computation of the total amount of money would be owed is shown below
A = P × (1 + r)^t
where
A represents the total money owed
P represent the borrowed amount
r represent the rate of interest
t represents the time period
So,
= $150,000 × (1 + 0.06)^15
= $150,000 × 1.06^15
= $679,857.92
A laptop has a listed price of $801.98 before tax. If the sales tax rate is 8.5%, find the total cost of the laptop with sales tax included.
Round your answer to the nearest cent, as necessary.
Answer 870.15
Step-by-step explanation:
In a city, polio drops were given to 2,12,583 children on Sunday in March 2008 and to 2,16,813 children in the next month .Find the difference of the number of children getting polio drops in the two months
Answer:
4,28,766 childrens
Step-by-step explanation:
The computation of the difference in the number of children getting polio drops in the two months is shown below:
The number of children got polio drops in 1st month is 2,12,583
And, the number of children got polio drops in 2nd month is 2,16,813
So, the total children got polio drops is
= 2,12,583 + 2,16,813
= 4,28,766 childrens
What is the measure of arc ECF in circle G?
52°
98°
158°
177°
Answer: 98 is the answer
Step-by-step explanation:
its just 98
Please Hurry!!!!!
Jordan is tracking a recent online purchase. The shipping costs state that the item will be shipped in a 24-inch long box with a volume of 2,880 cubic inches. The width of the box is seven inches less than the height. The volume of a rectangular prism is found using the formula V = lwh, where l is the length, w is the width, and h is the height. Complete the equation that models the volume of the box in terms of its height, x, in inches. x2 - x = Is it possible for the height of the box to be 15 inches?
Answer:
Jordan is tracking a recent online purchase. The shipping costs state that the item will be shipped in a 24-inch long box with a volume of 2,880 cubic inches. The width of the box is seven inches less than the height.
The volume of a rectangular prism is found using the formula V = lwh, where l is the length, w is the width, and h is the height. Complete the equation that models the volume of the box in terms of its height, x, in inches. 24 x2 - 168 x = 2,880
Is it possible for the height of the box to be 15 inches?
Yes
Answer:
24 x2 - 168x = 2,880, Yes
Step-by-step explanation:
.
what type of function best models the data in the graph?
ANSWER: quadratic
which quadratic equation best models the data in the graph?
ANSWER: y=0.433x^2
ANSWER: quadratic
which quadratic equation best models the data in the graph?
ANSWER: y=0.433x^2
The function that models here is quadratic.
We know,
The curve-shaped graph of a quadratic function is known as a parabola. The vertex of a parabola is one of its focal points. On the graph, it is either the highest or lowest point.
As, The graph shows that the value of x and value of y both increase.
Also, the value of y increases almost as the value of x.
Here the graph represent the Quadratic Equation.
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The distance around the world at the equator is about 42,000
A.meters
B.kilometers
C.centimeters
D. millimeters
Find the area of the triangle.
Answer:
29.394 square feet.
Step-by-step explanation:
There is no explanation for this answer.
Answer:
30 ft
Step-by-step explanation:
10 x 6 = 60
60 ÷ 2 = 30
formula : base x height ÷ 2
The selling price of an item is $520. It is marked down by 10%, but this sale price is still marked up from the cost of 360$. Find the markup from cost to sale price.
Answer:
30%
Step-by-step explanation:
Answer: good luck
Step-by-step explanation:
Please help!!! I don’t k ow where to start.
Answer:
B
Step-by-step explanation:
distance= r x t
d=150-62t
Un depósito de riego tiene una capacidad de 24000 litros. Un día de un depósito de riego se consumen 2/3 de él, al día siguiente no se riega y el depósito recupera 1/3 de su capacidad. Al día siguiente se consumen ¼ de su capacidad. ¿Qué fracción del total queda el último día?
Step-by-step explanation:
Un deposito de riego tiene una capacidad de 24000 litros. Un día se consumen 2/3 del deposito. al día siguiente no se riega y el deposito recupera 1/3 de su capacidad. Al día siguiente se consumen 6000 litros. Si inicialmente el deposito contenía 18000 litros. ¿Que fracción del total queda el ultimo día?
Comenzamos:
El deposito tiene: 18.000 litros
Se consumen 2/3 del depósito: 24.000 * 2/3 = 16.000 litros
Queda: 18.000 - 16.000 = 2.000 litros
Recupera 1/3 de su capacidad: 24.000 * 1/3 = 8.000 litros
Ahora tiene: 8.000 + 2.000 = 10.000 litros
Se consumen 6.000 litros: 10.000 - 6.000 = 4.000 litros
Fracción que representa sobre el total:
\frac{4.000litros}{24.000litros}=\frac{1}{6}
24.000litros
4.000litros
=
6
1
Find x.
13 m
12 m
O 8 m
0 17.7 m
O 25 m
O 5 m
The amount of money on a gift card can be
modeled by the graph of the linear function
shown on the grid..
Money on Gift Card
Balance (dollars)
3
6 7 8 9 10
Number of Candy Purchases
What is the rate of change of the balance with
respect to the number of candy purchases?
The
resp
per
The rate of change of the balance with respect to deposits is $100 per deposit
What is an equation?
An equation is an expression that shows the relationship between numbers and variables.
The slope intercept form of linear equation is:
y = mx + b
Where m is the rate of change and b is the initial value of y
The standard form of a linear equation is:
Ax + By = C
where A, B and C are constants.
From the graph, using the points (0, 50) and (1, 150):
Slope = (150 - 50) / (1 - 0) = 100
The rate of change is 100
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Need help with this question real quick
2b + 7g - 5b - 8g
Need all the steps as well
Answer:
Step-by-step explanation:
PLEASE HELP ME ILL LOVE YOU FOREVER
Answer:
x=21
Step-by-step explanation:
61+34 = 95
360( a circle) - 95 = 265
265 +7 +22 = 294
9x+5x=14x
294=14x (divide both by 14 to get x)
X=21
Answer:
x = 21
Step-by-step explanation:
A circle makes a 360 degree turn
So the measure of the arcs should add up to equal 360
That being said we create an equation to solve for x
360 = 61 + 5x - 7 + 34 + 9x - 22
Now we solve for x using basic algebra
Step 1 combine like terms
61 - 7 + 34 - 22 = 66
5x + 9x = 14x
now we have 360 = 14x + 66
step 2 subtract 66 from each side
66 - 66 cancels out
360 - 66 = 294
now we have 294 = 14x
step 3 divide each side by 14
294/14=21
14x/14=x
we're left with x = 21
2. What is the area of this polygon? Show your work.
Answer:
40 cm^2
Step-by-step explanation:
The area of the polygon is comprised of two triangles, each of which can be broken down into two right triangles for a total of four right triangles when split vertically.
The formula for the area of a triangle is: A = 1/2 * base * height.
The base for both triangles is 8 cm, and the height for both triangles is given on the right (6 cm for the top triangle and 4 cm for the bottom triangle).
The area of the top triangle will be:
A = 1/2 * 8 * 6
A = 4 * 6
A = 24
The area of the bottom triangle will be:
A = 1/2 * 8 * 4
A = 4 * 4
A = 16
Adding the values of the two areas, we get a total area of 40 cm^2.
For what value of b will f(x)= x^2 + bx + 900 have -30 as its only zero? PLEASE HELP!!
Answer:
60
Step-by-step explanation:
If -30 is its only zero, than the factors are (x+30)(x+30) = [tex]x^2 + 60x + 900[/tex]
Than b = 60
The value of b of the function f (x) would be,
⇒ b = 60
What is mean by Function?A relation between a set of inputs having one output each is called a function. and an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).
Given that;
The function is,
⇒ f (x) = x² + bx + 900
And, -30 as its only zero.
Now, The value of zero of function is satisfy the function as;
⇒ f (- 30) = 0
⇒ (- 30)² + (- 30)b + 900 = 0
⇒ 900 - 30b + 900 = 0
⇒ 1,800 = 30b
⇒ b = 60
Thus, The value of b of the function f (x) would be,
⇒ b = 60
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A square-based rectangular aquarium is filled with water. The side length of the
base is 40 cm. The height of the aquarium is 50 cm. The height of the water is
equal to half the height of the aquarium. A solid cube with side length 20 cm is
then thrown into the aquarium and sinks to the bottom.
Does the water level now reach the top of the tank? If not, how far below the top
of the tank does the water reach?
Answer:
From bottom = 30 cm
Below top = 20 cm
Step-by-step explanation:
Length & breadth of the aquarium = 40cm(as it is square)
Volume of aquarium = l x b x h
volume of aquarium = 40 x 40 x 50 = 80000 cm³
Volume of water = ½ half of aquarium
Volume of water = ½ x 80000 = 40000 cm³
Volume of the solid cube = a³ = (20cm)³ = 8000cm³
Surely, 40000>>>8000, level doesnt reach the top of the tank.
Volume acquired = 40000+8000=48000 cm³
Now, let it has reached reached a height h from the ground(bottom).
Volume = 48000 => lx b x h = 48000
=> 40 x 40 x h = 48000
=> h = 30 cm
The height at which water has reached is 30 cm(from bottom).
Thus, below the top it has reached = total height - 30 cm = 50 - 30 = 20 cm
Which correctly describes how the graph of the inequality 5x + 2y = 13 is shaded?
Answer:
The answer is above the solid line.
Step-by-step explanation:
(18-2(-5)+4(-5)
Plz Help
Answer:
the answer for this question is 10
What 1+1 help i'll give 15 points
Answer:
11
Step-by-step explanation:
am so smart
5. "Twenty-seven less than twice a number is -1.”
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: The number is 13
Explanation:
13(2) - 27 = -1
I hope this helped!
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Given. That 2x+1=32, find the value of x
Answer:
x=15.5
Step-by-step explanation:
2x+1=32
2x=32-1
2x=31
x=15.5
Answer:
x = [tex]\frac{31}{2}[/tex]
Step-by-step explanation:
Given
2x + 1 = 32 ( subtract 1 from both sides )
2x = 31 ( divide both sides by 2 )
x = [tex]\frac{31}{2}[/tex]
Alexandria has $50 that their parents gave them to go to a soccer game with. The game cost $22 to get in, how much more money can they spend?
I think I understand what you mean. If Alex got $50 and already spent 22 to get into the actual game, then they would have $28 after getting into the actual game.
So $28 dollars.
(Hope that's what you meant.)
A rectangle has sides with lengths (x+5) and (x+6) . Find the perimeter
Answer:
P = 4x + 22
Step-by-step explanation:
Formula
Perimeter = 2*L + 2*W
Givens
L = x + 6
W = x + 5
Solution
Perimeter = 2*(x + 6) + 2*(x + 5) Remove the brackets on both terms
Perimeter = 2x + 12 + 2x + 10 Collect like terms
Perimeter = 4x + 22 Answer
How many whole numbers between 1 and 100 are multiples of 3, but not multiples of 8
6. Sales associates at a local clothing
store earn a 2% commission on the
clothes they sell. If an associate earned
$50 in commission, what was the value
of her sales? Explain how you can
check your answer.
Answer quick PLZZ
Answer:
ask the internet this question sorry not being rude its becausd no ones answered it
What is the product of the solutions to the given equation? Give your answer step-by-step, please.
Answer:
The factors that multiply to equal
x^2 - 13x + 42 = 0
is
(x-6)(x-7) = 0
So,
(x-6) = 0
x = 6
(x-7) = 0
x = 7
6, and 7, are the solutions. They are asking for PRODUCT of the solutions, which means to multiply.
So, 6 times 7 = 42.
The answer is 42