Answers
Step-by-step explanation:
(3x² + 4x - 8) - (-2x² + 4x + 2)
[3 - (-2) = 5] , [ 4 - 4 = 0] , [ (-8) - 2 = -10]
5x² + 0x - 10
(or)
5x² - 10
Answer:
5x² - 6Step-by-step explanation:
Simplify
(3x² + 4x - 8) - (-2x² + 4x + 2) =3x² + 4x - 8 + 2x² - 4x - 2 =(3 + 2)x² + (4 - 4)x - (8 - 2) =5x² + 0x - 6 = 5x² - 6Related Questions
Hannah says that 2.11 is a rational number. Gus says that 2.11 is a repeating decimal.
Who is correct and why? Use the drop-down menus to explain your answer.
Answers
Answer:
Hannah is correct
Step-by-step explanation:
If it's a repeating decimal, is would be represented by 2.11 ..... But, that's not how it's represented. Therefore, Hannah is correct.
I hope this helps!
can someone help me on this please? i just need the work and answer for balancing the equation
Answers
Answer:
Step-by-step explanation:
2x - 8 = 10
Bringing like terms on one side
2x = 10 + 8
2x = 18
x = 18/2 = 9
Answer:
x= 9 balance the equation
Step-by-step explanation:
2x-8=10 -------- equation (1)
2x=10+8 -------- equation (2)
2x=18
x = 9
let's put x = 9 into equation(2)
2(9) =10+8
18=18, x= 9 balance the equation
Write the equation of the line whose slope and the point through which it passes are given. Express
the equation in point-slope form.
(4,0) and slope m=-7
Answers
Answer:
[tex]y-0=-7(x-4)[/tex]
Step-by-step explanation:
Equation of a line
The point-slope form of the equation of a line is:
[tex]y-k=m(x-h)[/tex]
Where m is the slope and (h,k) is a point through which the line passes.
The line passes through the point (4,0) and has a slope of -7. The equation of the line is:
[tex]y-0=-7(x-4)[/tex]
This is the point-slope form of the line.
Observe, in the drawing below, the length of Camila's bed.
In the image is the length of bed Camila which is: 1.80m
Question:
How long is Camila's bed, in centimeters?
I need the result and the and the de math account em pé
I ask for help with my niece's homework!
Answers
1 m = 1000 cm
41 = 5x + 35 and 3 = 4x + 10. Find the measure of x, 21 and 22.
1
2
3
4
6
5
8
7
Answers
Look : angle 1 + angle 3 = 180°
because it is a straight line.
Thus ;
[tex]5x + 35 + 4x + 10 = 180[/tex]
Simplification
[tex]9x + 45 = 180[/tex]
Subtract sides 45
[tex]9 x = 180 - 45[/tex]
[tex]9x = 135[/tex]
Divided sides 9
[tex] \frac{9}{9}x = \frac{135}{9} \\ [/tex]
[tex]x = 15[/tex]
So x = 15°
_________________________________
angle 1 = 5x + 35°
angle 1 = 5 ( 15 ) + 35°
angle 1 = 75° + 35°
angle 1 = 110°
_________________________________
angle 1 + angle 2 = 180°
110° + angle 2 = 180°
Subtract sides 110°
angle 2 = 180° - 110°
angle 2 = 70°
_________________________________
And we're done...♥️♥️♥️♥️♥️
First to answer correctly gets brainliest! (Asap please)
Answers
Answer:
Maybe 6000ft but im not completely positive
Step-by-step explanation:
Erin can read to chapters of her book in 1.5 hours. If Erin's book has 33 chapters, predict how many hours it will take her to complete her book
pls help
Answers
Answer:
33/2= 16.5
16*1.5= 24.75 24 hrs 45 min
Step-by-step explanation:
It will take 24.75 hours of reading to finish 33 chapters of the book.
What is unitary method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Given is Erin can read two chapters of her book in 1.5 hours and Erin's book has 33 chapters.
Two chapters of book → 1.5 hours of reading
one chapter of book → (1.5/2) hours of reading
33 chapters of book will be completed in → (1.5/2 x 33) = 24.75 hrs
Therefore, it will take 24.75 hours of reading to finish 33 chapters of the book.
To solve more questions on Unitary Method, visit the link below-
https://brainly.com/question/20709929
#SPJ5
The label on a juice carton says there are 50 calories in a 4-ounce serving of juice.
Arthur drinks 12 ounces of juice.
How many calories will he consume?
A.48 calories
B.58 calories
C.150 calories
D.200 calories
Answers
Answer:
C. 150 calories
Step-by-step explanation:
I hope his helps. Have a good day!
Make a table of ordered pairs for the equation y=-1/3x+1
Answers
Answer:
(0, 1)
(3, 0)
(6, -1)
(9, -2)
Find the area of a sector with a central angle of 140° and a diameter of 9.6 cm. Round to the nearest tenth.
Answers
Answer:
[tex]A=28.1\ cm^2[/tex]
Step-by-step explanation:
The area of a circular sector with a central angle θ and radius r is given by:
[tex]\displaystyle A=\frac{1}{2}r^2 \theta[/tex]
Note: The angle must be in radians.
We need to find both the radius and the angle in radians.
Diameter = 9.6 cm
Radius r=Diameter/2=4.8 cm
Angle in radians= Angle in degrees*π / 180
θ = 140*π / 180 = 2.4435 rad
Now we calculate the area:
[tex]\displaystyle A=\frac{1}{2}(4.8)^2 2.4435[/tex]
[tex]\boxed{A=28.1\ cm^2}[/tex]
.. What type of number is the following?
24i+16
A. Real
B.purely
C.complex
D. Not enough information
Answers
Answer:
Step-by-step explanation:
The i is usually the square root of -1 which does not exist in the real number system.
The number given is a mixture of real and complex and is classified as complex.
The answer is C
Answer:
the answer is: C,Complex
Step-by-step explanation:
Complex Numbers
A Complex Numbers is a combination of a real number and an imaginary number in the form a + bi. The real part is a, and b is called the imaginary part.
Examples include 4 + 6i, 2 + (-5)i, (often written as 2 - 5i), 3.2 + 0i, and 0 + 2i.
Note the last two examples:
3.2 + 0i is just the real number 3.2. All real numbers are complex numbers with zero for the imaginary part.
0 + 2i is just the imaginary number 2i. All imaginary numbers are complex numbers with zero for the real part.
I hope it helps you lot!!!
Goofy Golf ticket prices for kids under 12 years of age increased from $4.00 to $6.00 this year. What is the percent of increase in the tickets?
A. 60%
B. 50%
C. 40%
Answers
Answer C
Step-by-step explanation:
Here's my question. Thanks! :)
Answers
Six times a number plus 3 equals three times the same number minus
nine. What is the number? Hint: Let x= a number. Create the expression for
the other number based on the information
in the word problem.
Answers
Answer:
x = -4
Step-by-step explanation:
Six times a number plus 3 equals three times the same number minus
nine. This equation is 6x + 3 = 3x -9. Next, solve this equation and you get -4. Plug in -4 for x and you should get -21 on both sides.
how many quarters make 40 dollars
can you work it out with quarters
help me please help me please help me please
Answers
Given problem;
Number of quarters in $40;
To solve this problem;
Convert the dollar value to cents;100cents = $1
In $40, we would have; 40 x 100 = 4000cents
1 quarter = 25 centsSo, divide 4000cents by 25 to obtain the number of quarters in that amount of dollars;
Number of quarters = [tex]\frac{4000}{25}[/tex] = 160
So there are 160 quarters in $40
A city taxi driver charges $2 per kilometer and has a starting fee of $9. An Uber driver charges $5 per kilometer, but has no starting fee. At which distance (in kilometers) will the price of taking an Uber be equal to the price of taking a city taxi?
Answers
Answer:
2 tripsStep-by-step explanation:
first, we need to model an expression, the solve, say
let the total amount charged by taxi be y
and let the number of kilometers be x
y=2x+9
given that uber charges $5
then the number of taxi trips that will equal urber charge is
y=2x+9=5
5=2x+9
solving for x we have
2x+9-5=0
2x+4=0
2x=-4
x=-2
x=2 (x cannot be negative)
The common endpoint of two rays that make up an angle.
Answers
Eric is swimming along the surface of the sea. He uses positive numbers to represent elevations above the surface of the sea and negative numbers to represent depths under the surface of the sea. Mark is sitting on the deck of a ship above Eric , and Ariel is diving beneath Eric. Who could be at an elevation of -3 m?
Answers
Answer:
Ariel will be at an elevation of -3 m.
Step-by-step explanation:
There are three persons Eric, Mark and Ariel.
Location of these persons are,
Mark - Sitting at deck (Above the sea level)
Eric - swimming along the surface (At the sea level)
Ariel - diving beneath Eric (Below the sea level)
Since, all the distances above the sea level are measured with positive notation and below the sea level with negative.
Ariel will be at an elevation of -3 m.
Answer:
Ariel
Step-by-step explanation:
khan says so
Los profesores de un colegio tienen planeado mandar 6 boletines informativos al año a cada una de las 620 familias con estudiantes en el colegio. Cada uno de los boletines informativos necesita 2 hojas de papel. El papel se vende en resmas de 500 hojas. ¿Cuál es el número mínimo de resmas de papel necesarias para imprimir los boletines del colegio durante un año?
Answers
Answer:
14.88 resmas
Step-by-step explanation:
Los maestros de una escuela planean enviar 6 boletines al año a cada una de las 620 familias con estudiantes en la escuela.
Esto significa: El número total de boletines que recibe cada familia = 6 × 620 familias
= La escuela envía 3720 boletines cada año
Cada uno de los boletines necesita 2 hojas de papel.
1 boletín = 2 hojas de papel
3720 boletines =
Cruz multiplicar
3720 boletines × 2 hojas
= Se necesitan 7440 hojas de papel en un año
El papel se vende en resmas de 500 hojas.
¿Cuál es la cantidad mínima de resmas de papel necesarias para imprimir los boletines escolares en un año?
500 hojas de papel = 1 resma
7440 hojas de papel = y
Cruz multiplicar
500 × y = 7440 × 1
y = 7440/500
y = 14.88 resmas
La cantidad mínima de resmas de papel necesarias para imprimir los boletines escolares en un año es 1488 resmas
Determine o Conjunto Solução da equação do 2º grau abaixo. Deixe seus cálculos registrados.
x^{2}-25x+150=0
Answers
Answer:
x = 15, x = 10
Step-by-step explanation:
Which statement about the ordered pairs (3, – 8) and (4, 4) is true for the equation
3x - = 112
O (3, – 8) is a solution to the equation but not (4, 4).
Both ordered pairs are solutions.
Neither ordered pair is a solution.
O (4, 4) is a solution to the equation but not (3, – 8).
Answers
Answer:
Niether
Step-by-step explanation:
its not a solution
Convert to find the equivalent rate.
1000сm/day= meters/week
Answers
The graph represents a population of bacteria over a number of days, modeled with an exponential function. Based on the graph, which statement is true?
A.Initially there were 1,000 bacteria; the population will reach zero.
B.Initially there were 1,000 bacteria; the population will not reach zero.
C.Initially there were more than 1,000 bacteria; the population will reach zero.
D.Initially there were more than 1,000 bacteria; the population will not reach zero.
Answers
Answer:
The answer is B
Step-by-step explanation:
I got a 100% on the quiz
Answer:
B - Initially there were 1,000 bacteria; the population will not reach 0
Explanation:
Edg2020
Select the equation that is the inverse of the given function.
f(x) = x-3/5
• f^-1(x) = 5x + 15
• f^-1(x) = 5x + 3
• f^-1(x) = 3x - 5
• f^-1(x) = - 5/3x
Answers
Answer:
f^-1(x) = 5x + 3Step-by-step explanation:
Given function
f(x) = (x - 3)/5Its inverse is
x = (f^-1(x) - 3)/55x = f^-1(x) - 3f^-1(x) = 5x + 3The second option is correct
Answer:
b
Step-by-step explanation:
got it right
4 x (22+5)
Simplify the expression.
Answers
Answer:
the simplified expression is 108x
Step-by-step explanation:
4x(22+5)
you can remove the parenthesis by multiplying 4x by everything inside of them.
4x * 22 + 4x * 5
88x + 20x
108x
Negative three times a number increased by seven is less than -11.
Answers
Answer:
-3x+7<11
Step-by-step explanation:
I hope I helped you
In right triangle ABC, angle A= 90 degree, and AB = BC ,Find angle B, angle C
Answers
Answer:
b=45 c=45
Step-by-step explanation:
Evaluate the function please help
Answers
Answer:
Well, this is not an answer but, i would like do know your grade. ( & WHO'S idea was it to add LETTERS to MATH!?)
Which number is equivalent to the fraction 15/7
Answers
Answer:
2.14
Step-by-step explanation:
If you have 8 thousandths how many times would you multiply by 10
Answers
Answer:
-3
Step-by-step explanation:
8 thousandths = 0.008
8*10^-3=0.008