Answer:
64%
Step-by-step explanation:
16/25=0.64
Answer: 64% of students do not own a cell phone
Step-by-step explanation:
First, take 100 and divide it by 25, since percentages are out of 100
100/25=4
Now multiply 4 by 16
4x16
You will get
64%
Graph a line with a slope of -3 and (4,-2)
Answer:
the equation would look like y = -3x + 10. The graph is...
help please I have too many points and I also need help on my math
Answer:
Complementary
x = 55
Step-by-step explanation:
Complementary angles add up to 90°, while supplementary angles add up to 180°.
In this situation, the two angles add up to 90° (the little box means that an angle is a 90° angle) So, the angles are complementary.
Now, we can write this equation.
x + x - 20 = 90
Simplify.
2x - 20 = 90
2x = 110
x = 55
Just in case, let's check the answer.
Substitute x = 55 into (x + x - 20 = 90)
55 + 55 - 20 = 90
110 - 20 = 90
90 = 90
This is true, so x = 55 is correct.
I hope this helps! Feel free to ask any questions!
Write an equation for the parabola that satisfies
each set of conditions.
a) vertex (3, 4), opening downward with
a vertical stretch by a factor of 3
Answer:
Step-by-step explanation:
y = -3(x-3)^2 + 4
The ratio of students to laptops in a school is 3:2. If there are 1,200 students, how many laptops are there?
Plz help :) THANKSSS
Answer:
d
Step-by-step explanation:
Answer:
C. About 3.6 units is = to the length of AB
When ax3+bx-6 is divided by x+3,the remainder is 9. Find term of a only . The remainder when 2x3-bx2+2ax-4 when it is divided by x-2
Answer:
a) a = - ( 5 + b ) / 9
b) no remainder
Step-by-step explanation:
A) ( ax^3 + bx -6 ) / ( x + 3 )
Remainder = 9
determine the value of a
we will use the result of if ( x + a ) divides polynomial g(x) the remainder is g(a)
therefore given that ( x + 3 ) divides f(x) = ax^3 + bx - 6
= f( -3 ) = 9
= a(- 27 ) - 3b - 6 = 9
= -27a = 9 + 6 + 3b
therefore the term 'a' = - ( 15 / 27 + 3b / 27 )
= - ( 5/9 + b/9 )
a = - ( 5 + b ) / 9
b) Find the remainder when (2x^3 - bx^2 + 2ax - 4 ) is divided by (x-2 )
given that ( x -2 ) divides f(x) = 2x^3 - bx^2 + 2ax - 4
also given a = - ( 5 + b ) / 9 from previous polynomial above
= f(2) = ?
= 2(8) -4b + 4a - 4
= 16 - 4b + 4 ( - ( 5 + b ) / 9 ) - 4
= 16 - 4b + (( -20 - 4b ) / 9) - 4
= 16 - 4b - ( 20 - 4b ) / 9) - 4
= 16 - ( 32b - 20 ) / 9) - 4 = ?
therefore the remainder 'b' = ( -108 + 20 ) / 32 = - 2 3/4
since the remainder is negative there is no remainder then
Hakan is standing next to a building whose shadow is 15 feet long. If Hakan is 6 feet tall and is casting a shadow 2.5 feet long, how high is the building?
Height of Building = Feet
answer:
Answer:
36 feet long
Step-by-step explanation:
When you get the question it should look like this: 6/2.5 X/15.
Your gonna have to cross multiply 6 and 15 the keep 2.5 and X like this: 2.5x
After that, it should look like this: 2.5x=90, Now your gonna wanna divide 90 and 2.5 which you will get 36.
X= 36 ft long.
Hoped this helped!
Solve for x
4x = 51
1. x = 204
2. x = 47
3. x = 12.75
Answer:
C) 12.75
Step-by-step explanation:
4x=51
x=51/4
x=12.75
what is the unit rate for 1/2 a cup for 4 recipes
What is the value of h in the figure below?
Answer: 90 degrees
Step-by-step explanation:
Una fábrica produce tres tipos de balones de fútbol, con un costo mensual de
$24,250.00 por cada 1125 balones. Los costos de fabricación son $ 40.00, $ 30.00 y $
20.00. Estos balones se venden en $ 160.00, $ 120.00 y $ 100.00, respectivamente.
¿Cuántos balones de cada tipo se fabrican si la ganancia mensual es de $ 92,750.00?
Answer:
Se fabricaron:
1000 balones de los que cuestan $20
75 balones de los que cuestan $30
50 balones de los que cuestan $40
Step-by-step explanation:
Vamos a definir las variables:
x = número de balones de $100.00 vendidos.
y = número de balones de $120.00 vendidos
z = número de balones de $160,00 vendidos.
Sabemos que se producen 1125 balones, entonces:
x + y + z = 1125
y el costo de producción es $24,250, conociendo el costo de cada balón podemos escribir:
x*$20 + y*$30 + z*$40 = $24,250
Y también sabemos que la ganancia mensual es $92,750
Ganancia es la diferencia entre el dinero total recibido y los costos, entonces:
x*$100 + y*$120 + z*$160 - $24,250 = $92,750
x*$100 + y*$120 + z*$160 = $92,750 + $24,250
x*$100 + y*$120 + z*$160 = $117,000
Entonces tenemos un sistema de 3 ecuaciones:
x + y + z = 1125
x*$20 + y*$30 + z*$40 = $24,250
x*$100 + y*$120 + z*$160 = $117,000
Para resolver esto debemos comenzar por aislar alguna variable en alguna de las ecuaciones, yo comenzare aislando x en la primera ecuación:
x = 1125 - y - z
Ahora podemos reemplazar esto en las otras dos ecuaciones para obtener:
(1125 - y - z)*$20 + y*$30 + z*$40 = $24,250
(1125 - y - z)*$100 + y*$120 + z*$160 = $117,000
Si simplificamos esto obtenemos:
$22,500 + y*$10 + z*$20 = $24,250
$112,500 + y*$20 + z*$60 = $117,000
Ahora de vuelta, debemos aislar una variable en una de las ecuaciones, si aislamos y en la primera ecuación obtenemos:
y*$10 = $24,250 - $22,500 - z*$20
y = ($1,750 - z*$20)/$10
y = 175 - 2*z
Reemplazando esto en la otra ecuación obtenemos:
$112,500 + (175 - 2*z)*$20 + z*$60 = $117,000
Ahora podemos resolver esto para z.
(175 - 2*z)*$20 + z*$60 = $117,000 - $112,500
(175 - 2*z)*$20 + z*$60 = $4,500
$3,500 - z*$40 + z*$60 = $4,500
$3,500 + z*$20 = $4,500
z*$20 = $4,500 - $3,500 = $1,000
z = $1,000/$20 = 50
Entonces tenemos 50 balones de los que cuestan $40.
Usando la ecuación y = 175 - 2*z podemos encontrar el valor de y.
y = 175 - 2*50 = 75
Entonces tenemos 75 balones de los que cuestan $30.
Usando la ecuación x = 1125 - y - z podemos encontrar el valor de x.
x = 1125 - 75 - 50 = 1000
tenemos 1000 balones de $20.
Simplify 3√2+2√5
_______________
2√5-3√2
Answer:
[tex] 6\sqrt{10} + 19[/tex]
Step-by-step explanation:
Please mark as brainliest
Los puntajes obtenidos por un grupo de alumnos en un examen de 10 puntos son 3,5,2,6,5,9,5,2,8,6. Para saber el puntaje máximo que obtuvo el 75% de los alumnos se debe calcular el
Answer:
Para saber el puntaje máximo que obtuvo el 75% de los alumnos se debe calcular el tercer cuartil.
Step-by-step explanation:
Los Cuantiles (cuartiles, deciles, percentiles) son medidas de localización cuya función es informar del valor de la variable que ocupará la posición (en tanto por cien) que interese respecto de todo el conjunto de variables.
Los cuartiles son medidas estadísticas de posición que tienen la propiedad de dividir la serie estadística en cuatro grupos de números iguales de términos.
El primer cuartil o cuartil inferior es aquel valor de la variable tal que la cuarta parte (25%) de las observaciones son inferiores o iguales a él, y el resto (75%) es superior o igual. El segundo cuartil es la mediana, ya que se trata del valor localizado en la mitad de la distribución. Finalmente, el tercer cuartil o cuartil superior es un valor tal que las tres cuartas partes de las observaciones son inferiores o iguales a él.
En otras palabras, el primer cuartil Q1, es el valor en el cual o por debajo del cual queda aproximadamente un cuarto (25%) de todos los valores de la sucesión (ordenada); El segundo cuartil Q2 es el valor por debajo del cual queda el 50% de los datos (Mediana), el tercer cuartil Q3 es el valor por debajo del cual quedan las tres cuartas partes (75%) de los datos. Es decir, Q1, Q2 y Q3 determinan los valores correspondientes al 25%, al 50% y al 75% de los datos respectivamente. Q2 coincide con la mediana.
Para saber el puntaje máximo que obtuvo el 75% de los alumnos se debe calcular el tercer cuartil.
I need help on this and the person who answer this correctly gets a BRANLIST(answer if you know)
Answer:
-28.84
Step-by-step explanation:
-6π - 10
-6(3.14) - 10
-18.84 - 10
-28.84
Answer:
− 28.85
Step-by-step explanation:
What is the height of a cone with a slant height of 16 inches and a radius of 6 inches? Round your answer to the nearest whole number.
Answer:
14.8 inches
Step-by-step explanation:
Given that:
Slant height, l = 16 inches
Radius, r =. 6 inches
Using the relation :
h² + r² = l²
h² + 6² = 16²
h² = 16² - 6²
h² = 256 - 36
h² = 220
h = sqrt(220)
h = 14.832
h = 14.8 inches
Bill drove 200 miles in 4 hours. Justin drove 350 miles in 5 hours. If they each drove 560 miles, what is the total number of hours that Bill and Justin drove? Pleaseee Answer
10 points please help fast
Answer:
it's the last option
Step-by-step explanation:
tr
Answer:
TR
Step-by-step explanation:
The diameter is a chord that passes through the circles centre.
The only chord to do this is TR
Checks can be used to:
make purchases
pay rent
pay bills
all of the above
Answer:
all of the above
Step-by-step explanation:
according to your question
8th grade math. Please help!!
Answer:
1. 310.5
2. 360
3. 832
4. 1200
Step-by-step explanation:
Which statement is true about function f? NEED THE HELP ASAP!
ОА.
The function is continuous.
ОВ.
The function is increasing over its entire domain.
OC. As x approaches positive Infinity, f(x) approaches positive Infinity.
OD
The domain is all real numbers.
Answer:
your answer will be option A.
The function is continuous.
Step-by-step explanation:
hope it helps you
have a great day!!!
Answer:
i've just been looking at different answers and I am 75% sure its
"The function is increasing over its entire domain"
Step-by-step explanation:
what is the answer of the above question in the diagram
The area of the rectangular-shaped lot is 44,075 square feet. The width of the lot is 215 feet. How long is the lot the Mitchells are looking to buy?
Answer:
205 feet
Step-by-step explanation:
44075/215= 205
Is - 51/2 rational or irrational? Explain your reasoning.
Answer:
Step-by-step explanation:
It's rational because it doesn't have a continuous decimal. -51/2 is -25.5
Answer:
I believe it is ration since a rational number is any interger, fraction, or repeating decimal.
Step-by-step explanation:
How many learners can enrol if there are 12 teachers and a ratio of teachers to learners is 30:1
Answer:
360 learners
Step-by-step explanation:
One way to solve these types of problems is that you could set up a proportion
learners/teachers = learners/teachers
Let x = no. of learners to enrol
30/1 = x/12
12(30) = x
x = 360 learners
HELP!! ILL GIVE BRAINLIEST
Answer:
The answer is 90 degrees.
Step-by-step explanation:
If you want an explination, I'm more than happy to explain.
Answer:x=90
Step-by-step explanation:
90
The question is basically all in the picture.
Answer:
= 3.5 x 10^ -12
Step-by-step explanation:
i hope this helps :)
Answer:
35 * [tex]10^{-13}[/tex]
Step-by-step explanation:
Find the area of the figures
Answer:
120.
Step-by-step explanation:
area = L x W which means you multiply 15x 8.
Solve for m: d =n+8m
Answer:
8m = d
Step-by-step explanation:
Kim bought a lawn chair that had a ticket price of $25.00. She ended up paying $26.50 after tax. If she were to buy a $40.00 patio table, how much would she have to pay after tax?
Answer:
She would have to pay $42.50, which is 6.25% sales tax.
What number lies halfway between -2 and -1?
Answer:
-1.5
Step-by-step explanation:
