Answer:
The answer is 7.5
__________________
Step-by-step explanation:
so 1.50 + 3x - 1.50 = 24 - 1.50
3x = 22.5
3x/3 = 22.5/3
x = 7.5
What is 20 x 20 10 points it know
Answer:
400
Step-by-step explanation:
20*20 = 400
Answer:
20 x 20 is 400
Step-by-step explanation:
Simplify each expression.
3¹/₃ . 9¹/₃
Express 3 and 9 as a product of their prime factors then in index form. 9=3x3=3^2. 3=3^1. Apply the power rule (a^m)^n = a^mn to simplify. Indices depict: a^m x a^n = a^m+n
9= 3^2
3= 3^1
(3^1)^1/3 x (3^2)^1/3 = 3^1/3 x (3^2)^1/3 = 3^1/3 x (3^1x3^1)^1/3
3^1/3x3^1/3x3^1/3= 3^(1/3+1/3+1/3) = 3^1
=3
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You need a new computer for college that costs $1200. You
have worked all summer and earned $960. You will have to ask
your aunt if you can borrow the rest. What percent of the
computer's cost do you ask your aunt to pay?
Answer: 20%
Step-by-step explanation: $1200 - $960 = $240
20% of 1200 is 240.
Find the slope of a line through (4, 5) and (4, -5). Determine if the line is vertical, horizontal, or neither.
Answer:
Its a straight line
Step-by-step explanation:
Convert the fraction to a decimal: 5/8
According to descartes's rule of sign, how many possible positive and negative roots are there for the equation 0=−4x6−3x5 2x2−4x 1?
There are three possible positive and one negative root for the equation.
What is a polynomial?A polynomial is defined as a mathematical expression that has a minimum of two terms containing variables or numbers. A polynomial can have more than one term.
We have been given the equation as
⇒ -4x⁶ - 3x⁵ + 2x² - 4x + 1 = 0
Check the polynomial "as is" for positive zeros, the symbol changes three times. This means that you might either have one or three positive zeros. If they are imagined, they will depart in pairs.
So changes signs 3 times: possible positive roots 3 or 3-2=1
The polynomial must be rewritten as \(f(-x)\) for negative zeroes, or
⇒ -4x⁶ + 3x⁵ + 2x² + 4x + 1
This polynomial changes signs just once, So There will have 1 negative zero.
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The question seems to be incomplete the correct question would be
According to Descartes's rule of sign, how many possible positive and negative roots are there for the equation
-4x⁶ - 3x⁵ + 2x² - 4x + 1 = 0
Solve for r.
12r=36 promble
Answer:
r=3
Step-by-step explanation:
36 divided by 12=3
Answer:
r = 3
Step-by-step explanation:
Given g(x)=√x - 4 + 3 find g-¹(5)=
A 26
B 67
C4
D 8
Answer:
D
Step-by-step explanation:
D.D.D..D.D.D.D.D.D.D.D D D. D.D.D.
The price of a car that was bought for $20,000 has depreciated 8% yearly.
Write a model to describe the value of the car.
A.f(t)=20,000(0.92)t
B.f(t)=20,000(1.92)t
C.f(t)=20,000(0.08)t
D.f(t)=20,000(1.08)t
Step-by-step explanation:
\( \sf{ \longmapsto \: D.f(t)=20,000(1.08)t}\)
one way to display formulas is by pressing this key combination. [CTRL][ ]
To display formulas, one way is to press the key combination [Ctrl]+[] (grave accent).
What key combination can be used to display formulas?The key combination [Ctrl]+[] is used to display formulas.
This is a useful feature for checking and editing formulas without altering the calculated values.
By pressing [Ctrl]+[], users can easily view the underlying formulas and ensure their accuracy.
This key combination provides a convenient way to switch between the formula view and the results view, enabling efficient editing and troubleshooting of complex calculations.
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Solve the simultaneous equations
-x + 4y = 12
x + y = - 7
Answer:
y = 1, x = - 8
or
(-8, 1)
Step-by-step explanation:
-x + 4y = 12
x + y = -7
add the equations together
0x + 5y = 5
5y = 5
y = 1
substitute y for 1 in one of the original equations to find x
x + y = -7
x + 1 = -7
x + 1 - 1 = - 7 - 1
x = - 7 - 1
x = -8
Answer:
y = 1, x = - 8 or (-8,1)
Step-by-step explanation:
......
help please will give brainiest
Answer:
the first one
Step-by-step explanation:
HELP WILL MARK BRAINLIEST!!!
It is given that y varies inversely as x varies. If x = 8 and y=6, what is the value of y when x = 4?
Answer:
y = 12
Step-by-step explanation:
set up equation for 'y varies inversely with x': y = k/x
where 'k' is the constant of variation
8 = k/6
therefore, k = 48
value of y when x = 4: y = 48/4; therefore, y = 12
Thevalue of y when x is 4 is 12
If y varies inversely as x, this is expressed as;
y = k/xk is the variation constantIf x = 8 and y=6
k = xy
k = 8 * 6
k = 48
To get the value of y when x = 4
y = k/x
y = 48/4
y = 12
Hence the value of y when x is 4 is 12
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What multiplication equattion can be used to explain the solution to 15 / 1/3
Step-by-step explanation:
15 / (1/3) is equal to 15 x 3/1 = 15 x 3 = 45
Find the slope and y-intercept of the line whose equation is given.
y = -5x + 4
Answer:
Slope is -5 and y intercept is 4
Step-by-step explanation:
Hope this helps, and if you don't mind, could you mark me brainliest, I would really appreciate it
Answer:
Slope is -5
Y-intercept is 4 or (0,4)
Step-by-step explanation:
You use the linear equation of y=mx+b, where m is the slope and b is the y-intercept.
y=-5x+4
m=\(-5\), and b=4
So, slope=5, and the y-intercept is 4, or (0,4)
x3−2=10 help plz i need help
Tom bought 3 pizza pies for his 4 friends to share equally among themselves.
How much of the pizza will each friend receive?
answer is 3/4 i hope this helps
Make x the subject of the formula y = m x + b
23 less than a number p
Answer:
can u express ur question
Step-by-step explanation:
23-p it doesn't make sense cause I write a number with=
the curved surface area and volume of a cylinder are 880 CM^2 and 3080 cm^3 respectively find its total surface area
The total surface area of a cylinder are 1187.35 cm sq.
What is the volume of a right circular cylinder?Suppose that the radius of considered right circular cylinder be 'r' units.
And let its height be 'h' units.
Then, its volume is given as:
\(V = \pi r^2 h \: \rm unit^3\)
We are given the curved surface area and volume of a cylinder are 880 CM^2 and 3080 cm^3 respectively.
A = 880
V = 3080
Curved surface area of cylinder = 2πrh
880 = 2π x r x h
rh = 880/ 2π
Volume of cylinder = πr x r x h
3080 = πr x r x h
rh = 3080 / πr
Substitue the values;
880/ 2π = 3080 / πr
440/π = 3080 / πr
r = 3080 / 440
r = 7
Now, rh = 880/ 2π
h = 20.01
The total surface area = 2πr(r + h)
= 2π x 7(7 + 20.01)
= 1187.35 cm sq.
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Calculate the area of this triangle
Answer:
4.06 cm^2
Step-by-step explanation:
If you draw a line from the top vertex to intersect the base (which is 5.8 cm) at 90 degrees, the line is called the height. You need to calculate the height to determine the area.
So the triangle's height will divide the triangles into 2 smaller right triangles.
For the left right triangle, 2.5 will be hypotenuse
=> 2.5^2 = (height)^2 + (base1)^2
=> (height)^2 = 6.25 - (base1)^2
For the right right triangle, 4 will be hypotenuse
=> 4^2 = (height)^2 + (base2)^2
=> (height)^2 = 16 - (base2)^2
So
6.25 - (base1)^2 = 16 - (base2)^2
We have base1 + base2 = 5.8 => base1 = 5.8 - base2
Substitute
6.25 - (5.8 - base2)^2 = 16 - (base2)^2
6.25 - (33.64 - 11.6base2 + base2^2 = 16 - base2^2
base2^2 - base2^2 + 11.6base2 = 16 + 33.6 - 6.25
11.6base2 = 43.35
base2 = 43.35/11.6 = 3.74
since (height)^2 = 16 - (base2)^2
(height)^2 = 16 - (3.74)^2
height^2 = 2.0124
height = 1.42
so area = 1/2hb = 1/2(1.4)(5.8) = 4.06 cm^2
HELPPPP FASTER MARK BRAINLIEST IF CORRECT
A college is currently accepting students that are both in-state and out-of-state. They plan to accept four times as many in-state students as out-of-state, and they only have space to accept 100 out-of-state students. Let x = the number of out-of-state students and y = the number in-state students. Write the constraints to represent the incoming students at the college.
x > 0 and y > 0
0 < x ≤ 100 and 0 < y ≤ 400
0 < x ≤ 100 and y > 400
0 < x and y < 100
The constraints to represent the incoming students at the college is B. 0 < x ≤ 100 and 0 < y ≤ 400
How to illustrate the inequality?Inequalities are created through the connection of two expressions. It should be noted that the expressions in an inequality aren't always equal. Inequalities implies that the expressions are not equal. They are denoted by the symbols ≥ < > ≤.
In this situation, the college is currently accepting students that are both in-state and out-of-state. They plan to accept four times as many in-state students as out-of-state, and they only have space to accept 100 out-of-state students.
Let x = the number of out-of-state students and
y = the number in-state students.
The constraints is 0 < x ≤ 100 and 0 < y ≤ 400.The correct option is B.
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Arnold bought 19 gallons of milk in gallon and half-gallon jugs. if he bought a total of 24 jugs, how many of each size did he buy?
Answer:
-14 gallon jugs
- 10 half-gallon jugs
Step-by-step explanation:
I'm not an expert at solving these algebraically, so I'm going to do this the old-fashioned way: Guess and Check.
Lets sum up our information:
- He bought 19 gallons
- He bought those 19 gallons with 24 jugs
- There are half-gallon and full gallon jugs
We know that if he bought 24 full gallon jugs, he would have 24 gallons of milk, but he only has 19, so this is not the answer
We know that if he bought 23 full gallons jugs and one half-gallon jug, he would have 23.5 gallons of milk, but he only has 19 gallons of milk, so this is also not the answer.
We keep reducing the number of full gallon jugs and increasing the number of half-gallon jugs until we reach 19 gallons total.
After trying different combinations, we can figure out that he bought
-14 gallon jugs
- 10 half-gallon jugs
Assume that the demand curve D(p) given below is the market
demand for widgets:
Q=D(p)=1077−15pQ=D(p)=1077-15p, p > 0
Let the market supply of widgets be given by:
Q=S(p)=−4+8pQ=S(p)=-4+8p, p &
The consumer surplus at equilibrium is $27,165.
To find the consumer surplus at equilibrium, we need to first determine the equilibrium price and quantity where the demand and supply curves intersect.
Setting the demand and supply equations equal to each other, we have:
1549 - 11p = -5 + 10p
Combining like terms, we get:
21p = 1554
Dividing both sides by 21, we find:
p = 74
So, the equilibrium price is p = 74.
To find the equilibrium quantity, we can substitute this price back into either the demand or supply equation. Let's use the demand equation:
Q = 1549 - 11p
Q = 1549 - 11(74)
Q = 1549 - 814
Q = 735
So, the equilibrium quantity is Q = 735.
Now that we have the equilibrium price and quantity, we can calculate the consumer surplus. The consumer surplus is the area between the demand curve and the price line up to the equilibrium quantity.
The consumer surplus can be calculated as follows:
Consumer Surplus = (1/2) * (Equilibrium Quantity) * (Equilibrium Price)
Consumer Surplus = (1/2) * 735 * 74
Consumer Surplus = 27,165
Therefore, the consumer surplus at equilibrium is $27,165.
Correct Question :
Assume that the demand curve D(p) given below is the market demand for widgets:
Q=D(p)=1549−11pQ=D(p)=1549-11p, p > 0
Let the market supply of widgets be given by:
Q=S(p)=−5+10pQ=S(p)=-5+10p, p > 0
where p is the price and Q is the quantity. The functions D(p) and S(p) give the number of widgets demanded and supplied at a given price.
What is the consumer surplus at equilibrium?
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Does a reaction occur when aqueous solutions of chromium(II) bromide and aluminum acetate are combined? pes no If a reaction does occur, write the net ionic equation. Use the solubility rules provided
No, a reaction does not occur when aqueous solutions of chromium(II) bromide and aluminum acetate are combined. To determine if a reaction occurs between chromium(II) bromide (CrBr2) and aluminum acetate (Al(CH3COO)3).
We need to consider the solubility rules and potential chemical reactions between the ions. According to the solubility rules, bromides (Br-) are generally soluble in water, and acetates (CH3COO-) are also soluble. Therefore, both chromium(II) bromide and aluminum acetate will dissociate into their respective ions when dissolved in water.
The ions present in chromium(II) bromides are Cr2+ and Br-. The ions present in aluminum acetate are Al3+ and CH3COO-. When these solutions are combined, there are no double replacement reactions or precipitation reactions that occur between the ions.
Since there is no reaction between the ions, we can conclude that no new compounds or products are formed. Hence, the answer is that no reaction occurs when aqueous solutions of chromium(II) bromide and aluminum acetate are combined. As no net ionic equation is required in this case, the explanation above is sufficient to state that there is no reaction between chromium(II) bromide and aluminum acetate.
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Jack uses 1.5 cups of water for every 2 cups of raspberries to make a raspberry syrup.what is an equation that relates the amount of water to the amount of raspberries in the syrup
The equation that relates the amount of water to the amount of raspberries in the syrup 1.5x - 2y= 0
What is Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given:
Jack uses 1.5 cups of water for every 2 cups of raspberries to make a raspberry syrup.
Now, amount of water is represented by x.
and, amount of raspberries is represented by y.
Then, the equation can be represented as
1.5x = 2y
1.5x - 2y= 0
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what does the y-variable represent in kelly's system of linar equations?
y represents the number of times the arrow landed in the bull's-eye
1. If f(x) = (3x-2)/(2x+3), then f'(x) =
Answer:
\(f'(x)= \frac{13}{(2x+3)^2}\\\)
Step-by-step explanation:
\(f(x)= \frac{3x-2}{2x+3} \\\)
\(f'(x)=\frac{dy}{dx} = \frac{d}{dx}(\frac{3x-2}{2x+3})\\ f'(x)= \frac{(2x+3)\frac{d}{dx}(3x-2)-(3x-2)\frac{d}{dx}(2x+3) }{(2x+3)^{2} } \\f'(x)= \frac{(2x+3)(3)-(3x-2)(2)}{(2x+3)^{2} } \\\)
\(f'(x)= \frac{6x+9-6x+4}{(2x+3)^{2} }\\ f'(x)= \frac{13}{(2x+3)^2}\\\)
the endpoints of a line segment are G(1,7) and H(-3,11). Find the coordinates of the midpoint M.
Answer:
The answer is
( 1 , 9)Step-by-step explanation:
The midpoint M of two endpoints of a line segment can be found by using the formula
\(M = ( \frac{x1 + x2}{2} , \: \frac{y1 + y2}{2} )\)
where
(x1 , y1) and (x2 , y2) are the points
From the question the points are
G(1,7) and H(-3,11)
The midpoint is
\(M = ( \frac{ - 1 + 3}{2} , \: \frac{7 + 11}{2} ) \\ = ( \frac{2}{2} \: , \: \frac{18}{2} )\)
We have the final answer as
( 1 , 9)Hope this helps you
PLEASE HELP ASAP!!
Answer soon!!!
Answer: It is
3+3+3+3
Because 3^4 means 3x3x3x3
Answer:
3+3+3+3
Step-by-step explanation:
the answer is addition because if you add those they just its 12 cause thats 3x4 but if its 3 by 3 four times thats 81 and 3 to the fourth power thats 81 and last 3 squared twice multiplied by each other is 81
Hope this explains it im not very good at explanations but i tried lol