Answer:
4x² - 6x
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightDistributive Property
Algebra I
Terms/CoefficientsStep-by-step explanation:
Step 1: Define
(3x² + 2y² - 3x) + (2x² + y² - 2x) - (x² + 3y² + x)
Step 2: Simplify
[Distributive Property] Distribute negative: 3x² + 2y² - 3x + 2x² + y² - 2x - x² - 3y² - xCombine like terms (x²): 4x² + 2y² - 3x + y² - 2x - 3y² - xCombine like terms (y²): 4x² - 3x - 2x - xCombine like terms (x): 4x² - 6xAfter paying 8.5% sales tax and leaving a 20% tip, Gwyn paid $57.29. What was the cost of the meal before tax and tip? Round your answer to the nearest cent.
Answer:$33.41
Step-by-step explanation:
I converted the percentages to decimals and subtracted them from 1.
(Btw x stands for the cost before tip and tax)
This was the equation I came up with based on what was given to me;
57.29 = (1-0.085)x + (1-0.2)x
57.29=0.915x + 0.8x
57.29=1.715x
Divide both sides by 1.715 and should get 33.40524781
Since we are rounding to the nearest cent, the answer would be $33.41
HElp please i really need help 100
points
Answer:
yes
Step-by-step explanation:
Answer:
you have to use your own sheet of paper. sorry
Juan necesita para su coche verde 3dl y 75 ml de aceites,y para su coche azul 13cl y 5ml.¿Cuantos hl necesita en total? ¿Tendrá suficiente con una lata de medio litro?
Answer:
1. Juan necesita 0,0051 hl en total.
2. Juan no tendrá suficiente con una lata de medio litro.
Step-by-step explanation:
1. Para calcular el volumen total en hl, primero debemos convertir todas las unidades a hl.
Para el coche verde:
[tex] V_{1} = 3 dl*\frac{1 hl}{1000 dl} = 0,003 hl [/tex]
[tex] V_{2} = 75 ml*\frac{1 hl}{100000 ml} = 0,00075 hl [/tex]
Para el coche azul:
[tex] V_{3} = 13 cl*\frac{1 hl}{10000 cl} = 0,0013 hl [/tex]
[tex] V_{4} = 5 ml*\frac{1 hl}{100000 dl} = 0,00005 hl [/tex]
Ahora, para encontrar el volumen total debemos sumar todos los volúmenes anteriores:
[tex] V_{T} = V_{1} + V_{2} + V_{3} + V_{4} = 0,003 hl + 0,00075 hl + 0,0013 hl + 0,00005 hl = 0,0051 hl [/tex]
Por lo tanto, Juan necesita 0,0051 hl en total.
2. Luego, para saber si tendrá suficiente con una lata de medio litro, debemos convertir el volumen total de hl a l:
[tex] V_{T} = 0,0051 hl*\frac{100 l}{1 hl} = 0,51 l [/tex]
Entonces, dado que el volumen total es 0,51 litros Juan no tendrá suficiente con una lata de medio litro porque necesita cubrir 0,01 litros más.
Espero que te sea de utilidad!
You are planning a party for a group of friends. The cost of
the party will be $30 to rent the room plus $5 per person.
You have a budget of $75. Which inequality gives you the
best estimate of the number of people p that you can invite.
to your party?
Answer:
30 + 5p ≤ 75
Explanation:
This inequality describes that your total cost (which is dependent on the amount of people you invite) must be less than OR equal to $75.
s(t)=sqrt3t+1 at t=2
Answer:
s(2) = √7
Step-by-step explanation:
s(2) = √(3[2] + 1) = √7
What is the value of the dot on the number line?
Answer:
-2.1 to -2.4( my guess would be .3)
Step-by-step explanation:
the middle line refers to.5 so the dot since its not indicated could be referred to as-2.3
Brainlyess
In order to find the percentage of households in a town that own more than one vehicle, a survey asks 1000 randomly selected drivers at a gas station how many vehicles are owned in their household. From the results of the survey, it is reported that 67% of households in the town have more than one vehicle. Why is this report biased?
Answer options with 4 options
A.A random sample was used.
B.The sample size was too small.
C.A survey should not have been used.
D.Households without a vehicle were not surveyed.
The bias in the report is that households without a vehicle were not surveyed.
• A bias in a statistical research may be occur when the sample used is not entirely representative of the population. The research carried out above was to evaluate the number of households with more Than one car, the sampling frame should not only include the households with cars but the entire household in the town.
• The fact that the random sample were Drivers at the gas station, exempts those households without cars because those without cars cannot drive to a gas station.
• The sample is sufficiently large.
The scenario also states that, the samples were chosen randomly.
Hence, the bias is that household without cars were exempted from the survey.
Learn more : https://brainly.com/question/24393604
Someone help please, I’ll give you brainlist!
Answer:
it is a 1
Step-by-step explanation:
what is the answer for 1 1/2 + ( - 1 / 2) ?
Answer:
5
Step-by-step explanation:
............................
Answer:
5 is the answer to your question
please help with (Solving Rational Equations and Inequalities)
Answer:
1. x = -45
2. 1 +- squareroot 17 over 2
Step-by-step explanation:
note* ^ plus minus
Is the relationship linear, exponential,or neither?
Answer:
neither
Step-by-step explanation:
it is neither because there is not a consistent pattern for linear, and there is not a consistent ratio so it also cannot be exponential
A cylindrical vase has a diameter of 6 inches. When completely filled, the vase holds 72π cubic inches of water.
What is the height of the vase?
Answer:
Height of cylindrical vase = 8 inches
Step-by-step explanation:
Given:
Diameter of cylindrical vase = 6 inches
Volume of cylindrical vase = 72π inches³
Find:
Height of cylindrical vase
Computation:
Radius of cylindrical vase = Diameter of cylindrical vase / 2
Radius of cylindrical vase = 6 / 2
Radius of cylindrical vase = 3 inches
Volume of cylinder = πr²h
Volume of cylindrical vase = πr²h
72π = πr²h
72π = π(3)²h
72π = 9πh
72/ 9 = h
Height of cylindrical vase = 8 inches
Triangles ABC and DEF are similar. Explain why
AB
BC
DE
EF
Given an example of possible side lengths for segments AB, BC, DE and
EF. Write a coherent explanation using domain specific vocabulary to
justify why these side lengths are reasonable.
B
D
А
Answer:
Triangles ABC and DEF are similar. Explain wh
Step-by-step explanation:
They are the same shape it's just one is smaller one is bigger
What is the domain of y = x + 1?
Answer:
[0, infinity
Step-by-step explanation:
It's essential to type "sqrt(x)" or "√x," which are vastly different from the linear function y = x + 1.
The domain of the square root function is [0, infinity).
Adding 1 to this merely shifts the entire graph up 1 unit.
So the domain of y = √x + 1 is the same as before: [0, infinity
Help me with my homework ASAP!
5-3-2021
(Look at photo)
(NO LINKS!!!!!)
a. You need to think which numerator is bigger
b. 4
c. 5
d. <
e. less than
f. greater than
Can someone please help me with this one, i would appreciate it if you can explain it to me if not then that’s okay
Steve stayed after school for extra activities 55% of the 180 school days this year. How
many days did Steve stay after school?
Answer:
He stayed for 99 days
Step-by-step explanation:
55% of 180 is 99
Solve each equation by completing the square. Write the answers as equations.
4. x2-2x-48=0 5. r2+8r+12=0
Answer:
the answer is
x-2=48
r-8= -12
A 30-foot ladder is set against the side of a house so that it reaches up 24 feet. If Elizabeth grabs the ladder at its base and pulls it 3 feet farther from the house, how far up the side of the house will the ladder reach now? (The answer is not 21 ft.) Round to the nearest tenth of a foot.
Use the Pythagorean theorem to calculate the distance from the wall the ladder originally is:
x = sqrt(30^2 - 24^2)
x = sqrt(900-576)
x = sqrt(324)
x = 18
The ladder was originally 18 feet from the wall. Moving the ladder 3 feet further away makes the new distance 18 + 3 = 21 feet.
Now use the Pythagorean theorem again to find the new height of the ladder.
Height = sqrt(30^2 - 21^2)
Height = sqrt(900 - 441)
Height = sqrt(459)
Height = 21.42
Rounded to the nearest tenth = 21.4 feet.
Answer:89
Step-by-step explanation:
23+9
Water freezes at 0° Celsius.
• Manoj's water is 3° Celsius.
• Leo's water is 7° Celsius.
Whose water matches each description?
Manoj's water
Leo's water
Is at a greater temperature
Is closer to freezing
+
0
3
7
pls help me
Answer:
♀️⚕️⚕️☺☺
A ski resort charges Susan a flat fee of $65 to rent skis. It also charges her a daily rate of $22 for a ski lift pass to get skiers back up the mountain. Let d = the number of days a ski lift pass is rented. If Susan is
charged $175, which equation represents her situation?
Answer:
65+22d=175
Step-by-step explanation:
Can someone pleaseeee help and if you’re correct i’ll give brainliest
Answer:
C, the binder and the stapler do because 9+5=14
Step-by-step explanation:
Answer:
The binder and the stapler do
Pls mark Brainliest :)
Step-by-step explanation:
Which is the graph of f (x) = f (one-half) Superscript x?
On a coordinate plane, an exponential decay function decreases from quadrant 2 into quadrant 1 and approaches y = 0. It crosses the y-axis at (0, 4) and goes through (1, 1).
On a coordinate plane, an exponential decay function decreases from quadrant 2 into quadrant 1 and approaches y = 0. It crosses the y-axis at (0, 4) and goes through (2, 1).
On a coordinate plane, an exponential decay function decreases from quadrant 2 into quadrant 1 and approaches y = 0. It crosses the y-axis at (0, 2) and goes through (1, 1).
On a coordinate plane, an exponential decay function decreases from quadrant 2 into quadrant 1 and approaches y = 0. It crosses the y-axis at (0, 2) and goes through (1, 0.5).
Answer:
B, the second graph
Step-by-step explanation:
The function on a graph has to pass through the points (0, 4) and (2, 1), that's the one you should pick
By analyzing the given exponential function, we will see that the correct option is the third one.
How to find the graph of the given function?
The function is:
f(x) = 2*(1/2)^x
So, we have a value smaller than 1 and larger than zero with the exponent x. This means that for really small values of x, the outcome will be very large, while for large values of x, the outcome will tend to zero. So this is an exponential decay.
When evaluated in zero we have:
f(0) = 2*(1/2)^0 = 2
So it crosses through the point (0, 2).
And when evaluated in x = 1, we have:
f(1) = 2*(1/2)^1 = 1
Then it also passes through (1, 1).
Then the correct option is the third one:
"On a coordinate plane, an exponential decay function decreases from quadrant 2 into quadrant 1 and approaches y = 0. It crosses the y-axis at (0, 2) and goes through (1, 1)."
If you want to learn more about exponential functions, you can read:
https://brainly.com/question/11464095
Overview
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Question Progress
Homework Progress
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ABC is a straight line.
A
B
С
The length of AB is four times the length of BC.
AC = 75 cm.
Work out the length of AB.
Which inequality represents the number of miles Ellie rides during her school break?
O A. m > 20
B. m > 20
C. m < 20
D. m < 20
Answer:
Hello! Your answer would be BELOW
Step-by-step explanation:
A)
D)
Hope I helped! Ask me anything if you have questions! Brainiest plz. Hope You make a 100%! Have a nice day! -Amelia♥
Using words and equations, explain what you learned about exponents in this lesson so that someone who was absent could read what you wrote and understand the lesson. Consider using an example like 2^4 • 3^4 =6^4
I WILL MARK BRAINIEST FOR WHOEVER ANSWERS THE FASTEST
Answer:
Multiplication rule of exponents says [tex](xy)^n = x^n * y^n[/tex] hence, 2^4 • 3^4 =6^4
Step-by-step explanation:
As per the rule of exponents,
[tex](xy)^n = x^n * y^n[/tex]
If we go by the above equation, we can deduce that x is 2 and y is 3
Thus, 2^4 *3^4 can be written as [tex](2*3)^4 = 6^4[/tex]
Hence, 2^4 • 3^4 =6^4
Consider the quadratic equation ax2 + bx + 5 = 0, where a, b, and c are rational numbers and the
quadeatic has two distinct zeros.
Choose the drop down below to make a correct statement.
Answer choices:
Rational
Irrational
Non-real
Answer:
irrational
Step-by-step explanation:
Can 12in, 16in, and 20in form a right triangle? Explain thanks
Answer:
Yes
Step-by-step explanation:
12²=144
16²=256
20²=400
Since 144+256=400, 12, 16, and 20 can form a right triangle
By using Pythagoras theorem AB^2+BC^2=CA^2
12^2+16^2=20^2
144+ 256=200
yes 12in, 16in and 20in forms a triangle
hey could someone help me with this question immediately!! i’ll mark brainiest if it’s correct.
Answer:
10/3
Step-by-step explanation:
The answer would be 10/3. Please mark brainliest!
Answer:
10
Step-by-step explanation:
The missing number is 10
Two students' solutions to the equation 58.5 = 3.5x — 6 are shown
below. Both students made an error. Find the errors and give a
correct solution.
Answer:
18.43 is the correct answer when rounded to the hundreds place. when roumded to the tenths it is 18.4