Answer:
answer is C
Step-by-step explanation:
What is the radius, in centimeter, of a circle that has a circumference of 16π centimeters? A. 8 B. 16 C.32 D.6432 D
Answer:
A
Step-by-step explanation:
Answer:
Step-by-step explanation:you spel't it wrong so if im right then its b and c
8+8
16+16
32+32
64+64What is the "Coefficient of y term" in 4x + 7 + 2y + 3x
Answer:
The coefficient is the number before the variable, so the coefficient of y would be 2.
Answer:
2!
Step-by-step explanation:
There are no other y terms in this equation, so the coeffient of the y is 2
Find m w in rhombus TUVW.
for all positive angles less than 360°, if csc csc (2x+30°)=cos cos (3y-15°), the sum of x and y is?
Answer:
35 degrees
Step-by-step explanation:
for all positive angles less than 360°, if csc (2x+30°)= cos (3y-15°), the sum of x and y is?
Let the given expression be equal to 1, hence;
csc (2x+30°)= cos (3y-15°) = 1
csc (2x+30°) = 1
1/sin(2x+30) = 1
1 = sin(2x+30)
sin(2x+30) = 1
2x+30 = arcsin(1)
2x+30 = 90
2x = 90-30
2x = 60
x = 60/2
x = 30 degrees
Get the value of y;
cos (3y-15°) = 1
3y - 15 = arccos (1)
3y - 15= 0
3y = 0+15
3y = 15
y = 15/3
y = 5
Sum of x and y;
x+y = 30 + 5
x+y = 35degrees
Hence the sum of x and y is 35 degrees
Select all of the expressions that are equivalent to 4(5x + 2y).
A. 9x + 6y
B. 4,5x) + 4(2y)
C. 20x + 8y
D. 20x + 2y
E. 47xy)
The simplification of the given algebraic expression is 20x + 8y. The correct option is (C).
What is an Algebraic expression?An algebraic expression can be obtained by doing mathematical operations on the variable and constant terms.
The variable part of an algebraic expression can never be added or subtracted from the constant part.
The given algebraic expression is 4(5x + 2y).
It can be simplified as follows,
4(5x + 2y)
= 4 × 5x + 4 × 2y
= 20x + 8y
Hence, the expression that is equivalent to 4(5x + 2y) is 20x + 8y.
To know more about algebraic expression click on,
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Which of the following sets of ordered pairs is a function?
{(-2, 4), (-2, 3), (-2, 2), (-2, 1)}
{(6, 1), (7, 3), (4, 2), (6, 2)}
{(8, 1), (7, 0), (7, -1), (8, 2)}
{(1, 3), (2, 4), (-1, -3), (-2, -4)}
Find the equation of the straight line which passes through each of the following pairs of points.
(1,4) (3,10)
Answer:
y = 3x + 1
Step-by-step explanation:
First, find slope:
[tex]y2 - y1 / x2 - x1[/tex]
[tex]10 - 4/ 3 - 1 = 6 / 2 = 3[/tex]
Then, put the equation into point-slope form using the point (1, 4):
[tex]y - y1 = m(x - x1)[/tex]
where m is the slope
y - 4 = 3(x - 1)
If you want to put this into slope-intercept form, it would be
[tex]y-4=3(x-1)\\y - 4 = 3x - 3\\y = 3x + 1[/tex]
What is the answer here?
Answer:
x=4 y=3
Step-by-step explanation:
y=x-1
2x-3y=-1
put x-1 in for y and solve
2x-3(x-1)=-1
2x-3x+3=-1
-x+3=-1
-x=-4
x=4
put 4 in for y and solve
y=4-1
y=3
Contrasting Kinetic and Thermal Energy
Answer:
Thermal energy comes from a substance whose molecules and atoms are vibrating faster due to a rise in temperature. Kinetic energy is the energy of a moving object. As thermal energy comes from moving particles, it is a form of kinetic energy.
Step-by-step explanation:
Differences:
So, the main difference between thermal and kinetic energy is that the first one is random motions of particles that you mostly can't see by eye, while the second is a unified motion of these same particles, which you can then see. As you say, kinetic energy of large objects can be converted into this thermal energy.
The difference between Kinetic and Thermal Energy is simple. Thermal Energy comes from heat which is generated by molecules moving around very fast (kinetic energy does tie in here but Thermal and Kinetic Energy are still not the same). Kinetic Energy is generated by speed and mass, and whenever an object is moving fast it has Kinetic Energy, if something is sitting still it has Potential Kinetic Energy.
Hope this helps and have a nice day.
-R3TR0 Z3R0
please help fast will give brainleist
Answer:
The picture wont load im sorry
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
because 3.14 so the 4th dash
The ratio of the number of boys to the number of girls in a choir is 5 to 4. There are 60 girls in the choir. How many boys are in the choir?
Answer:
There are 48 boys in the choir
Step-by-step explanation:
What is the slope of the equation?
Answer:
5/4
Step-by-step explanation:
The slope is 5/4.
Please help me pretty please I been stuck on this for a while now
ratio of boys to girls in a class of 27 is 1:2
The two arc lengths shown on the circles are equal, but the circles are different sizes. 2 circles. One circle has a radius of 8 inches and a shaded sector with an angle measure of 90 degrees. The second circle has a shaded sector with an angle measure of 120 degrees. One circle has a radius of 8 in. What is the radius of the other circle? Arc length circle 1 = Arc length circle 2 StartFraction 90 degrees over 360 degrees EndFraction (2 pi (8)) = StartFraction 120 degrees over 360 degrees EndFraction (2 pi (4)) One-fourth (16 pi) = one-third (2 pi r) 4 = two-thirds r r =
Answer:
6
Step-by-step explanation:
I just did the question
Last year Jo paid £245 for her car insurance.
This year she has to pay £883 for her car insurance.
Work out the percentage increase in the cost of her car insurance
(3 marks)
Answer:
Increase=638/245*100=260.40
Step-by-step explanation:
First: work out the difference (increase) between the two numbers you are comparing.
Increase = New Number - Original Number.
Then: divide the increase by the original number and multiply the answer by 100.
% increase = Increase ÷ Original Number × 100.
Which student correctly used guess and check to solve for the unknown number?
The difference between a number and five is fifteen.
Answer:
Aida's work is correct
Step-by-step explanation:
5 x 3 = 15 so the difference is 3!
Answer:
Aida's work is correct
Step-by-step explanation: the guy above me is right :)
What can you conclude about the relationship between government and big business before the Progressive Era began?
The government imposed strict regulations on big business
The government let big business do almost anything they wanted
The government helped working people unionize, upsetting big business
The government regularly sued big business in court
Answer: it’s the second one
Step-by-step explanation:
3. A prop for the theater club's play is constructed as a cone topped with a half-sphere. What is the volume of the prop? Round your answer to the nearest tenth of a cubic inch. Use 3.14 to approximate pi. 12 radius 18 height
Answer:
8138.88 cubic unit.
Step-by-step explanation:
Given that,
Radius, r = 12
Height, h = 18
We need to find the volume of the prop. The volume of a cylinder is given by the formula as follows :
[tex]V=\pi r^2 h\\\\V=3.14\times 12^2 \times 18\\\\V=8138.88\[/tex]
So, the volume of the cylinder is 8138.88 cubic unit.
pls help for 10 pts
Sarah spends 1/6
hour vacuuming her mom's car. She spends 4 times as long washing the car. Then she spends twice as long waxing the car as she does washing the car. What is the total amount of time Sarah spends vacuuming, washing, and waxing her mom's car?
Answer:
your answer will be 2 hours and 10 minutes
M-8=3. —solving equations
Answer:
m=11
Step-by-step explanation:
m-8=3
m=3+8
m=11
supongamos que el total de los estudiantes en tu escuela es de 256 se te ha pedido elegir al azar una muestra de 15 estudiantes alos cuáles se le aplicará una examen para evaluar las condiciones físicas en las que se encuentra
Pregunta completa:
Ejercicio. Supongamos que el total de estudiantes en tu escuela es 256. Se te ha pedido elegir
al azar una muestra de 15 estudiantes a los cuales se les aplicará un examen para evaluar las
condiciones físicas en las que se encuentran. Describe en tu libreta al menos dos maneras
diferentes de como podrías realizar la selección de manera que los 15 estudiantes representen
una buena muestra del total de estudiantes
Responder:
Por favor, consulte la explicación
Explicación paso a paso:
Para garantizar que la selección realizada sea representativa, la selección debe ser aleatoria.
1.) Se puede elegir una muestra totalmente aleatorizada de 15 integrantes de niños y niñas en igual proporción. Es decir, si toda la población tiene un 60% de niñas y un 40% de niños, entonces una muestra puede incluir;
0.4 * 15 = 6 niños
0,6 * 15 = 9 niñas
Además, la muestra se puede seleccionar asignando al azar 15 números a un trozo de papel enrollado donde se les puede pedir a todos los estudiantes que elijan. los estudiantes que eligen los trabajos numerados se utilizan como muestra.
find ST, find UV, Find the perimeter of triangle RST, find SU
Answer:
(a). ST = 15 units; (b). UV = 3 units; (c). [tex]P_{RST}[/tex] = 54 units; (d). SU = 9 units
Step-by-step explanation:
The centroid of a triangle is the intersection of the three median of the triangle.
If a median of a triangle is a perpendicular, then a triangle is an isosceles triangle.
write the decimal that represent the shaded portion on the model.
Answer:
.45
Step-by-step explanation:
Answer:
0.45
Step-by-step explanation:
Since 45 out of the 100 squares are shaded, it means the fraction would be 45/100 and 45/100 is equal to 0.45.
Write an equation for a line with a slope of 5 and y-inter of -3
Answer:
y=5x-3
Step-by-step explanation:
y=mx+b where m=slope and b= y-intercept
Do these form a right angle?
Answer:
Only 15 and 16
Step-by-step explanation:
If there is a little square in it, that means theres a right angle
Answer:
only 15 and 16
Step-by-step explanation:
Please help!
Please answer the question on the screen!
Answer:
(x+1)²-5(x-7)= area
Area= (x+1)²-5x-35
Area= x²+2x-5x+36
Area= x²-3x+36
Step-by-step explanation:
Answer:
-12 is the answer but I don't know that is right or not ▪︎▪︎1-3/8
Can you help me please
Answer:
0.625
Step-by-step explanation:
I just entered this in a calculator what are you learning in math?
please help! i'll give brainliest and 5 stars
Answer:
Step-by-step explanation:
x/2 = 20
*2 *2 (2 cancels)
x = 40
Answer:
x=40
Step-by-step explanation:
Divide (6x2 + 12x) by 3x
Answer:
choice 1) 2x+4
Step-by-step explanation:
(6x²+12x)/3x = 2x+4