Answers
Answer:
it's b
Step-by-step explanation:
the reason it's b is because conduction happens when something hot comes in contact with something cold which heats the cold thing up and cooling the hot thing eventually they will both be room temperature
Related Questions
Leo wants to determine the average number of texts middle school students send in a day. Since all middle school
students are enrolled in history, he randamly surveyed 4 'students from each of Mr. Barnes's eighth-grade history
classes. Ms. Lopez and Mrs. Frank also teach eighth-grade history. What should Leo do to ensure his sample is
representative of all middle school students?
O He should take the sample as is because he randomly surveyed students in each of Mr. Barnes's classes.
He should also take a sample from Ms. Lopez's and Mrs. Frank's classes so that each student has the same
chance of being chosen.
O He should also take a sample from each of the other history classes in all of the other grades in the middle school.
O He should survey al the students in all the history classes to make sure he collects enough data.
Mark this and return
Save and Exit
Next
Submit
Answers
Answer:
3rd Choice
Step-by-step explanation:
He is looking to collect a sample representing middle school students, not just 8th grade students. He needs to get all the data from all the middle school students.
607 Evaluate the expression 27+ 40 ÷ 2^3
Answers
Answer:
27+ 40 ÷ 2^3
27+40/8
27+5
32
ASSIGNMENTS
COURSES
Assignment. 12. Quiz 2. Integer Operations
Attempt 1 of 1
SECTION 1 of 1
QUESTION 6 of 17
<
1
2
3
4
5
6
7
8
9
10
11
12
>
P
Two numbers are multiplied and the product is negative. If one number is positive, what is true of the other number?
It could be positive or negative
it is o
It is positive
It is negative
Answers
Answer:
i would help but i dont really know what the quetion is
Step-by-step explanation:
If Mark was 12 years Old 10 years ago how old will he be 8 year from now
Answers
Answer:
Mark is currently 22 years old; if you add 8 years to 22, he will be 30 years old.
Step-by-step explanation:
hope this helps:) please mark brainliest.
Answer:
he would be 30
Step-by-step explanation:
i
A triangle has an area of 72 cm² and a base of 10 cm². What is the height of the triangle?
Answers
Answer:
14.4
Step-by-step explanation:
Area= 72 cm^2
Base= 10 cm
height= ?
Area= base x 1/2 x height
72 = 10 x 1/2 x h
72= 5 x h
72/5 = h
h= 14.4
5-2(3 - x) = 4x + 10
Answers
Answer:
False
Step-by-step explanation:
5-2(3-x) =
3(3-x) = (not sure about this step)
9-x, this answer does not equal 4x + 10
5 - 6x = 4x + 10
-4x. 4x
——————————-
5 - 2x = 10
-5. -5
————————
-2x = 5
—- —-
-2. -2
——————-
x= -2.5
12. MULTIPLE CHOICE Brandon is watching a movie
clip on his computer in a window that is 6 inches
by 3 inches. What is length and width of the
window when dilated by a scale factor of ?
A l= 12 in., w = 9 in. C(= 3 in., w = 6 in.
B l = 2 in., w = 3 in. Dl= 4 in., w = 2 in.
Answers
Answer:
this problem has an answer.
Step-by-step explanation:
Boom easy points
IDRK I'd say D
Which form(s) of energy can you identify here?
Answers
Answer:
sound energy
One type is sound energy. Sound energy is defined as the energy of vibrating molecules. Sound energy works by pushing and pulling molecules. Typically, speakers push and pull the air around us which is why we can hear a TV or a radio.
Step-by-step explanation:
Write the equation of the line in standard form of the line that passes through (-3, 9) and has a slope of 3.
Answers
Answer:ez just divise all
Step-by-step explanation:
20 POINTS
if you dont know the answer please dont answer
12x+24y=48
Answers
Answer:
x=2 y=1
Step-by-step explanation:
12 times 2 equals 24
24 time 1 equals 24
24+24=48
Find the value of x in the parallelogram
Answers
What is the slope and y-intercept of the equation
below?
4y - 8x = 16
Answers
Answer:
Step-by-step explanation:
Answer:
The slope is 2 and the y-intercept is (0, -4)
Step-by-step explanation:
An isosceles triangle has two sides of equal length. The third side is 5 less than twice the length of one of the other sides. If the perimeter of the triangle is 23 cm, what is the length of the third side?
Explain how you would define a variable for this problem.
Answers
Explain how you would define a variable for this problem.
please help me asap.
Answers
A cone has a volume 7065in and a height of 30 in what is the radius of the cone?use 3.14 for pi
Answers
Answer:
15 inches.
Step-by-step explanation:
V = 1/3 pi r^2 h
7065 = 1/3 * 3.14 * 30 * r^2
r^2 = 7065 / (1/3 * 3.14 * 30)
r^2 = 7065 / 31.4 = 225
r = sqrt 225 = 15.
How many zeros are shown in this graph:
Picture of the graph down below.
Answers
Answer:
4
Step-by-step explanation:
the zeros are each time it touchs/crosses the x axis
HELP PLEASE DUE IN 5 MINUTES
Express the function rule “the output is three less than twice the input” in at least one other way.
Answers
Answer:
y=2x-3
Step-by-step explanation:
"three less" means subtract by 3. "twice the input" means 2 times whatever is used for input
Expand 3(m + 7). Just answer this
Answers
Answer:
3m+21
Step-by-step explanation:
Answer:
3m+21
Step-by-step explanation:
3(m+7)
3m+21
Hope this helps!
Plz help. You need to wright an equation and solve it.
To rent a car is $25 per day plus a fee of $50. Gil rented a car for $250. How many days did he rent the car?
Answers
Answer: 8 days
Step-by-step explanation: There is only one fee of 50 dollars. 250-50=200
Divide 200 by 25 to get the number of days.
please help me!!!!!!
Answers
This equation intersects at the same y and x intercepts as the green line shown on the graph.
yyyyy said i had to
Four months of the year have thirty days only. What fraction of the set
of months is this?
Answers
Answer:
4/30 or 4/120
Step-by-step explanation:
ind the measure of angle ABC.
B
8x
6x
6x
A
C.
Ok my bad last question anyways ❤️URGENT 25 EACH❤️
Answers
Answer:
angle ABC=72 degrees
Step-by-step explanation:
8x+6x+6x=180 degrees (all triangles contain 180 degrees)
20x=180
x=9
angle ABC=8x or (8)(9)=72 degrees
Answer:
72°
Step-by-step explanation:
Angle A = 6x
Angle B = 8x
Angle C = 6x
The sum of all interior angles in a triangle is 180°, which means angles A, B and C add up to 180:
A + B + C = 180
substitute in the values for A B and C:
6x + 8x + 6x = 180
Simplify by combining like terms:
6x + 6x + 8x = 180
20x = 180
solve for x:
20x/20 = 180/20
x = 9
Since we know x = 9 and angle B = 8x, u can substitute in the value of x to find the value of angle B:
B = 8x
B = 8(9)
B = 72°
hope this helps!
Given the function below, what is the value of g(4)?
g(x)=3x2−3x−9
Select one:
A. 15
B. 27
C. 38
D. 56
Answers
Answer:
g(x) = 3x^2-3x-9
g(4) =3(4)^2-3(4)-9
g(4)=3(16)-12-9
g(4)=48-12-9
g(4)=27
So B is the correct answer.
Hope this helps!
Factorise
12x2 + 16x
Answers
Answer:
Answer is 4x(3x2+4x)
Step-by-step explanation:
12x2+16x
4(3x2+4x)
4x(3x+4)
I hope it's helpful!
What is the distance from point (-5, 6) to point (-5.-2)?
Answers
Answer:
8
Step-by-step explanation:
(-5,6) (-5,-2)
Notice how the two points have the same x-coordinate. This means that they are directly on top of each other. To find their distance, all we need to do is subtract their y-coordinate values.
6-(-2)
Two negatives make a positive
6+2
8
Therefore, the distance between the two points is 8 units.
I hope this helps!
Explain how to find the distance between 1.5 and any point, n, on a number line.
Answers
Your teacher has disabled instant marking. Your marks will appear after the due date.
727
The perimeter of a right-angled triangle is 96 cm.
The lengths of its sides are in the ratio 6:8:10
Work out the area of the triangle in cm”.
B x W x = 2
Total marke: 4
Answers
Answer:
[tex]A=384\ cm^2[/tex]
Step-by-step explanation:
Let the sides of a triangle be 6x,8x and 10x.
Perimeter of the triangle, P = 96 cm
We need to find the area of the triangle.
P = sum of all sides
6x+8x+10x = 96
24x = 96
x = 4
Sides are :
6x = 6(4) = 24 cm
8x = 8(4) = 32 cm
10x = 10(4) = 40 cm
Area,
[tex]A=\dfrac{1}{2}\times b\times h\\\\A=\dfrac{1}{2}\times 24\times 32\\A=384\ cm^2[/tex]
So, the area of the triangle be [tex]384\ cm^2[/tex].
What is the image of (9, 3) after a dilation by a scale factor of 3 centered at the origin?
Answers
Answer:
(27, 9)
Step-by-step explanation:
Hope that helps!
Answer:(27, 9)
Step-by-step explanation:
An oak tree is planted when it is 750 centimeters tall. What is this height in meters?
Answers
Answer:
7.5
Step-by-step explanation:
750/100=7.5
Answer:
7.5 meters
Step-by-step explanation:
If 100cm=1m
Then 750cm= 750÷100
Therefore 750cm to meters= 7.5m
Un estudiante de álgebra ha ganado $100,000 en una lotería y desea depositarlos en cuentas de ahorros en dos instituciones financieras. Una cuenta paga 8%de interés simple pero los depósitos se aseguran sólo a $50,000. La segunda cuenta paga 6.4% de interés simple y los depósitos se aseguran hasta $100,000 determine si el dinero se puede depositar para que quede completamente asegurado y gane un interés anual de $7,500
Answers
Answer:
Si puede asegurarse, ya que la inversión en la cuenta bancaria que da un 8% anual, es menor a 100 000 y mayor que 500 000.
Step-by-step explanation:
Ci= 100 000 $
Cuenta #1 = 8% de interés simple. con depósitos de 50 000$.
La segunda para 6.4% con interés simple para depósitos de 100 000$
Determine si el dinero se puede depositar para que fenere un interés de 7500
7500 = C1(0.08)+C2(0.064)
C1+C2= 100 000
C2 = 100 000 -C1
7500 = C1(0.08)+(100 000 - C1)(0.064)
1100= 0.016 C1
C1= 68750$.