Answer:
Hay 140 alumnos en dicha aula.
Step-by-step explanation:
Primero, debes encontrar la cantidad de alumnos que aprobaron que corresponde a 4/5 usando una regla de tres teniendo en cuenta que sabes que 1/5 corresponde a 21 que son los estudiantes que no aprobaron:
1/5 → 21
4/5 → x
x=(4/5*21)/1/5
x=(84/5)/(1/5)
x=84*5/5*1
x=420/5
x=84
Ahora, puedes sumar el número de estudiantes que aprobaron con el número de estudiantes que no aprobaron para encontrar el total que estudiantes que asistieron al examen:
84+21=105
Después, dado que sabes que 105 estudiantes corresponde a 3/4 de los alumnos en un aula, puedes usar una regla de tres para encontrar el número de estudiantes en el aula:
3/4 → 105
1 → x
x=(1*105)/(3/4)
x=(105/1)/(3/4)
x=105*4/1*3
x=420/3
x=140
De acuerdo a esto, la respuesta es que hay 140 alumnos en dicha aula.
Choose the polynomial that is written in standard form.
−3x5 + 4x3 + 10x2
−8x + 4x4 + 3x3
x4 + 4x3 + 10x4
x6 + 4x3 + 10x7
Answer:
A. −3x⁵ + 4x³ + 10x²Step-by-step explanation:
The standard form means that the terms are ordered from biggest exponent to lowest exponent.Verify the answer options
A. −3x⁵ + 4x³ + 10x²
5, 3, 2 - correct orderB. −8x + 4x⁴ + 3x³
1, 4, 3 - incorrect orderC. x⁴ + 4x³ + 10x⁴
4, 3, 4 - incorrect orderD. x⁶ + 4x³ + 10x⁷
6, 3, 7 - incorrect orderAnswer:
[tex] { - 3x}^{5} + {4x}^{3} + {10x}^{2} [/tex]
Step-by-step explanation:
For a polynomial to be in standard form, it must satify the conditions below:
1) It must not contain like terms
2) The exponents (powers) must be written in descending order
That is, the polynomial must be of the form
[tex]f(x) = {ax}^{n} + {bx}^{n - 1} + {cx}^{n - 2} + . \: . \: . \: . \: . \: mx + n[/tex]
Where a, b, c, m, n, are coefficients/constants
The only option that satifies the above conditions, and follows the pattern f(x) shown is:
[tex]{ - 3x}^{5} + {4x}^{3} + {10x}^{2} [/tex]
find the value of given expression
[tex] \sqrt{310 \times 310} [/tex]
Answer:
√{310×310}=√310²=±310 is your answer
Solve for x and y simultaneously
Pls help me
Step-by-step explanation:
Are the roots equal or unequal
Which number line shows point M at 4/3?
Answer:
D
Step-by-step explanation:
going to the number "4" 3 dots down is 4,3
I’m once again asking for your Mathematical support!
Answer:
Step-by-step explanation:
let x= hamburger
let y= hot dogs
Jalen: 5x+3y=28.50
Victoria: 2x+6y=21
is second choice
I will mark brainliest please help
Answer:
2/3, 2 to 3, 2:3
Step-by-step explanation:
HELP PLEASE! QUICK AND EASY POINTS! USE THE IMAGE PROVIDED!!
(-3) to the sixth power in exponential form
Answer:
Step-by-step explanation:
A negative number raised to an even exponent gives a positive result so it is the same as 3 raised to 6. That is 3 x 3 x 3 x 3 x 3 x 3 = 729
The (-3) to the sixth power, (-3)⁶, is equal to 729.
To express (-3) to the sixth power in exponential form, we write it as (-3)⁶.
Now, let's calculate (-3)⁶ properly:
(-3)⁶ = (-3) * (-3) * (-3) * (-3) * (-3) * (-3)
Multiplying -3 by itself six times:
(-3) * (-3) * (-3) * (-3) * (-3) * (-3) = 729
Therefore, (-3) to the sixth power, (-3)⁶, is equal to 729.
By raising -3 to the power of 6, we obtain the result of 729.
To know more about power:
https://brainly.com/question/15149964
#SPJ6
Your 3rd quarter final will be in April. The test will be 100 points total and contain 35 questions.
There are 2-point and 4-point questions on the test. How many of each point value question are
on the test?
Number of 2-point questions:
Number of 4-point questions:
Answer:
12 23
Step-by-step explanation:
that = up to 35
Write the equation of the line that passes through the points (7,0)(7,0) and (7,6)(7,6). Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal line.
Answer:
x=7
Step-by-step explanation:
have a great day :D
A mix of factoring by grouping. Factor the exressions. 17ax+17a-x-1 Please explain/show steps on how to do this!
*edit: I know the answer to the problem because it was said aloud in a class, but I am not sure the steps to get there!
Answer:
[tex](x+1)(17a-1)[/tex]
Step-by-step explanation:
We are given that
[tex]17ax+17a-x-1[/tex]
We have to factorize the given expression.
Pair up the terms
[tex](17ax+17a)+(-x-1)[/tex]
Now, taking common factor
[tex]17a(x+1)-1(x+1)[/tex]
Taking common (x+1)
[tex](x+1)(17a-1)[/tex]
Now, we get
[tex](x+1)(17a-1)[/tex]
This is required factors of given expression.
Which letter matches the angle?
Answer:
F, Vertical angles.
Step-by-step explanation:
If you need extra visuals, this might help:
"The angles opposite each other when two lines cross. They are always equal.
In this example a° and b° are vertical angles.
"Vertical" refers to the vertex (where they cross), NOT up/down. They are also called vertically opposite angles."
find the length of missing side x
Answer: x=24 the formula for hypotenuse is A^2 +b^2=c*2 but we have c^2 so to get a leg you do c^2- a leg and in this cas you get 24
Step-by-step explanation:
En un examen de matemáticas por cada respuesta correcta se suman 7 puntos, y por cada incorrecta se pierden 9, si el examen tiene 10 preguntas, y se obtuvo una calificación de 6 puntos, ¿Cuántas preguntas correctas e incorrectas se obtuvieron? *
Si en el ejercicio anterior se obtuvieron -26 puntos en lugar de 6, ¿Cuántas preguntas correctas e incorrectas se obtuvieron? *
Answer:
iufiyutuiti7ti6ri6fu5eu5ru5s
PLEASE PLEASE ANSWER THIS WILL GIVE BRAINLY
if the perimeter of a rectangle is 26x^2+16x+10 and the length is 8x^2+6x+4, what is the width?
Here is the set up:
P = 2L + 2W
P = 2(26x^2+16x+10) + 2(8x^2+6x+4)
Simplify the right side to find P.
Answer:
5x^2 + 14x + 9
To find the width, multiply the length that you have been given by 2, and subtract the result from the perimeter. You now have the total length for the remaining 2 sides. This number divided by 2 is the width.
helppp i really need help will give brainliest
Answer:
the answers are 13, ab/2, 20 and 15x²/2
Answer:
1/2 a^2, 1/2 b*a , 20, 7.5x^2
Step-by-step explanation:
Area of right angle triangle = 1/2 height * base so
Area of MSP = 1/2 a^2 , Area of BUC =1/2 a*b
Area of BAC =1/2 8*5 , Area of DRK =1/2 3x*5x =1/2 *15x =7.5x^2
HURRY I WILL GIVE 100 pointssss!!!
A climber is on a hike. After 4 hours he is at an altitude of 800 feet. After 12
hours, he is at an altitude of 1400 feet. What is the average rate of change? *
Answer:
First Problem: 200 ft/hour Second Problem: 3 ft/hour
Step-by-step explanation:
R = D/T
So, 800/4=200
We will check if the rate matches for the second example rate:
1400/12=200. It does, so we know we are correct
Problem 2:
R = D/T
90/30=3
Hope it helps.
Which of the following are examples of monetary incentives?
Select all that apply.
sale
gift card
bank account
credit card
coupon
rebate
Step-by-step explanation:
may be
Last one is correct
Answer:
coupons, rebate, and sales
Step-by-step explanation:
In QRS, the measure of S=90, the measure of Q=64, and RS=16
Answer:17.8 feet
Step-by-step explanation:
Write an equation for the hanger diagram and then us the sketch to show how to solve the equation algebraically.
WILL GIVE BRAINLEST IF ANSWERED IN 1 MINUTE OR LESS!!!!!!!!
Answer:
Answer: z * 1 =
Step-by-step explanation:
So, add da numbers to get dat
Answer:
2z + 3 = 5
Step-by-step explanation:
2z + 3 = 5 Subtract 3 from both sides
2z = 2 Divide both sides by 2
z = 1
pls help !! someone :((
Answer:
C. $352.80
Step-by-step explanation:
Multiply 14 x 12 which you get 168..
Now Multiply again.. 168 x the number of how much is every square foot which is 2.10.. 168 x 2.10 = 352.8 ($352.80)
are these triangles congruent ?
Answer:
yes
Step-by-step explanation:
from sss axiom
we can say that they are congurqnt
Use the table to determine the slope. Plzzz help
Answer:
M = 12.5
Step-by-step explanation:
Multiply each one by 12.5
The 30 members of a choir are trying to raise at least $1,500 to cover travel costs to a singing camp. They have already raised $600. Which inequality could you solve to find the average amounts each member can raise that will at least meet the goal?
Answer:
30x + 600 is greater than or equal to 1,500
x is the amount each member would have to raise.
x = 30
Each member needs to raise at least $30
Which is the best description of triangles ABC and DEF?
2 similar triangles labeled ABC and DEF are shown. Side AB is 3 centimeters, side AC is 5 centimeters, and side BC is 2 centimeters. Side DE is 4 point 5 centimeters, side DF is 7 point 5 centimeters, and side EF is 3 centimeters.
A. They are congruent, but not similar.
B. They are similar, but not congruent.
C. They are neither similar nor congruent.
D. They are both similar and congruent.
Answer:
B. They are similar, but not congruent.
Step-by-step explanation:
how many cups of flour would u need to bake 7 batches of cookies?
If 1/2 cup of flour makes a batch of cookies, to make 7 batches you would need 3 and a half cups of flour :D
What is the family of the equation y = 4 x ^ 2 − 1 ?
Answer:
Step-by-step explanation:
y = 4x^2 - 1
Is a Polynomial equation of degree 2.
Also called a quadratic equation.
11. x2 + x + 9 = 20
Solve equation using the quadratic formula write in irrational solutions in simplest radical form
problem 1: x^2 + 4 = 0 , x^2 = -4 , this problem has no real solution because x = 2i which is an imaginary number
problem 2: x^2 +x -6 = 0 , (x + 3)(x - 2) =0 , x = 2 or x = -3
problem 3: x^2 -6x +7 =0 , (x^2 -6x +9) - 2 =0 , (x - 3)^2 = 2 , x-3 = √2 , x = 3+√2 or x - 3 = -√2 , x = 3 - √2
Find the surface area
please show work
363 inch²
Step-by-step explanation:
Each vertical face is a rectangle.
Area of each face = length x breadth
= 8 x 6 inch² = 48 inch²
There are 5 such faces, total area = 5 tiimes of 48 inch² = 240 inch²
For horizontal faces:
Observe: you can actually divide that face in 5 right-angled triangle(two edge point & centre form right angled ∆). With base 6 inch & height 4.1 inch.
For 2 such faces, you have 2 x 5 times of area of 1 ∆.
Area of 10∆s = 10 ( ½ x 4.1 x 6) = 123 inch²
Total area = area of horizontal surfaces + area of vertical surfaces
Total area = 240 + 123 inch² = 363 inch²