Answer:
A. Smaller ice cubes have more surface area in contact with the liquid water, so more thermal energy is transferred from the water to the ice.
Step-by-step explanation:
The surface area of the smaller ice cubs are more as compared to the block of ice. Hence, the surface area exposed to the outer environment is more. It is because of this reason that more thermal energy is transferred from water to ice cubs than the ice block. more heat was absorbed by the ice cubes. This helped the ice cubes to melt faster.
Select the correct answer. If a group of distinct objects can be arranged in 120 different ways, how many objects are there?
A. 3
B. 4
C. 5
D. 6
Answer:
The answer is C!
Step-by-step explanation:
n! = 120
n = 5
Answer:
c 5
Step-by-step explanation:
Took the test
PLZZ HELP ME WITH THIS
Find the value of x in the triangle shown below.
6
4
Answer: √ 52
Step-by-step explanation:
find the unknown sizes of angles in the following
a°
2a°
(a+10)°
Answer:
Step-by-step explanation:
a+2a+a+10=180
4a=180-10
4a=170
a=42.4°
2a=42.5*2=85°
a+10=42.5+10=52.5°
2 cm
3 cm
What is the volume of the figure ?
1. Change each of the following equations to the form
y = mx + c. Then, state the values of m and c.
(a) -6x- y = 3
(b) 3x - 4y = 12
(c)-2x + 5y = 10
(d) x + 2y = 4
(e) 8x- 4y = 3
(1) 4x + 5y = -6
Answer:
(a) -6x- y = 3
[tex]6x + y = -3\\ y = -6x -3[/tex]
(b) 3x-4y =12
[tex]3x - 4y = 12\\-4y = -3x +12\\4y = 3x -12\\\\y = \frac{3}{4}x -3[/tex]
(c)-2x + 5y = 10
[tex]-2x + 5y = 10\\5y = 2x + 10\\y = \frac{2}{5}x + 2[/tex]
(d) x + 2y = 4
[tex]x+2y=4\\2y = -x + 4\\y = \frac{-1}{2} x +2[/tex]
(e) 8x- 4y = 3
[tex]8x - 4y =3\\-4y = -8x + 3\\4y = 8x -3\\y = 2x -\frac{3}{4}[/tex]
(f) 4x + 5y = -6
[tex]4x + 5y = -6\\5y = -4x - 6\\y = \frac{-4}{5} x -\frac{6}{5}[/tex]
PLSSSS HELP ASSAP 50 POINTS FPR FIRST PERSON TO ANSWER
Answer:
a. 2/3 or 0.6666...
b. AB = 6cm and AD = 3cm
Step-by-step explanation:
28/42 = 2/3
14/21 = 2/3
42*1/7 = 6
21*1/7 = 3
jonathon needs at least an 89 on his test to keep hid A in math what inequality matches jonathons situation
Answer:
x ≥ 89
Step-by-step explanation:
Since Jonathan needs at least an 89, his score must be greater than or equal to an 89.
Answer:
Step-by-step explanation:
HELP
list all the extraneous solutions of the equation 2x/x+4 = x/x-1
Answer:
[tex]\huge\boxed{\sf Solution\ Set = \{0,6\}}[/tex]
Step-by-step explanation:
[tex]\displaystyle \frac{2x}{x+4} = \frac{x}{x-1} \\\\Cross \ Multiplying \\\\x(x+4) = 2x(x-1)\\\\x^2 + 4x = 2x^2 -2x\\\\2x^2 -x^2 = 4x + 2x\\\\x^2 = 6x \\\\x^2 -6x = 0\\\\Either,\\\\x = 0 \ \ \ \ OR \ \ \ \ x-6 = 0\\\\x = 0 \ \ \ \ OR \ \ \ \ x = 6[/tex]
Hence,
Solution Set = {0,6}
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807Step-by-step explanation:
2x x(x-1) = x x (x+4)
2x x (x-1) - x x (x+4)= 0
2x^2 - 2x - x x (x+4) = 0
2x^2 - 2x - x^2 - 4x = 0
x^2 - 2x - 4x = 0
x^2 - 6x = 0
x x (x-6) = 0
x = 0
x - 6 = 0
x = 6
The equation has 2 solutions
x1 = 0, x2 = 6
The diagram shows a triangle.
What is the value of w?
Answer:
The value of w is 63°.
Step-by-step explanation:
All the sides of triangle sum up to 180°.
so
w+71+46=180
or w+117=180
or w=180-117
=63
I NEED HELP WITH THIS HELP PLS!!!!
Answer:
120
Step-by-step explanation:
Volume =lxbxh
=5 x 6 x 4
=120
Please help calculate the surface area
Answer:
SA = 189 cm^2
Step-by-step explanation:
What you're going to want to do is calculate the surface area of each type of side (triangle or rectangle) then add them up accordingly!
Starting with triangles: area = 1/2 * l * h
So, in this scenario its (1/2) * 6 * 4 , or half of 24, which is 12 cm^2
Since we have two triangular sides, that totals to 24 cm^2.
Then the rectangular sides: area = l*h
so, 5*11 = 55 cm^2
We have three rectangular sides, totalling 165 cm^2
165+24 = 189 cm^2
Answer:
200 [tex]cm^{2}[/tex]
Step-by-step explanation:
SA = LA + 2B where LA is the lateral area and B is the area of the base(triangle)
LA = ph p = perimeter of base and h = distance between bases
LA = (5 + 5 + 6)11 = 176
B = bh/2 = 6(4)/2 = 12
SA = 176 + 2(12) = 176 + 24 = 200 [tex]cm^{2}[/tex]
what is 5x+14-(3x-5) so so so For this its subtraction expressions
Answer:
2x+19
Step-by-step explanation:
5x+14-(3x-5)
2x+14+5
2x+19
HELPPPPPP PLEASEEE !!! After how many missing assignments will a student likely have a zero for an average? (Remember to draw your line of best fit)
Answer:
After 7 assignments and for the line of best fit you want to draw a line where half of the dots are on ether side of the of the line but it also has to fallow the flow of the dots.
(cosA+sinA)
2
+(sinA−cosA)
2
=2
Answer:
Here we want to solve:
(cos(A) + sin(A))^2 + ( sin(A) - cos(A))^2 = 2
First, remember the two expansions:
(a + b)^2 = a^2 + 2*a*b + b^2
(a - b)^2 = a^2 - 2*a*b - b^2
Using these relations, we can expand:
(cos(A) + sin(A))^2 = cos(A)^2 + 2*cos(A)*sin(A) + sin(A)^2
( sin(A) - cos(A))^2 = sin(A)^2 - 2*sin(A)*cos(A) + cos(A)^2
Replacing that in our equation, we geT:
(cos(A)^2 + 2*cos(A)*sin(A) + sin(A)^2) + (sin(A)^2 - 2*sin(A)*cos(A) + cos(A)^2) = 2
We can simplify this to get:
2*cos(A)^2 + 2*sin(A)^2 + 2*cos(A)*sin(A) - 2*cos(A)*sin(A) = 2
2*cos(A)^2 + 2*sin(A)^2 = 2
We can take the 2 as a common factor to get:
2*cos(A)^2 + 2*sin(A)^2 = 2*( cos(A)^2 + sin(A)^2) = 2
Now we can divide both sides by 2:
2*( cos(A)^2 + sin(A)^2)/2 = 2/2
cos(A)^2 + sin(A)^2 = 1
And this is a trigonometric property that is true for any value of A.
So the equality:
(cos(A) + sin(A))^2 + ( sin(A) - cos(A))^2 = 2
is true for any real value of A.
Below are two parallel lines with a third line intersecting
them.
46
Answer:
x = 136º
Step-by-step explanation:
Corresponding Angles are congruent
x = 136º
heyy! i’ll give brainliest please help
Answer:
the 3rd option
Step-by-step explanation:
Answer:
B. (Never capitalize directions)
Step-by-step explanation:
north or west are not a name, person, or a city
Which number line model represents the expression 6+(-2)?
Number line model represented in option C represents the expression 6 + (-2).
What is Number Line?Number line is a pictorial representation of numbers, both negative and non-negative numbers, written on a horizontal straight line within specific intervals.
Number line are used to determine basic mathematical operations like addition, subtraction, division and multiplication.
So here, we are adding the value -2 with 6.
First draw an upward arrow from 0 to 6 in order to represent that we are initiating the addition process with 6.
Then the number -2 added to 6 implies that the number 2 is actually deducting from 6.
So we draw a downward arrow to unit units from 6.
Then we get the number 4 corresponding to the point where the arrow ends.
Hence, option C is the model which represents the expression 6 + (-2).
To learn more about Number Line, click:
https://brainly.com/question/13425491
#SPJ1
A store marked up the cost of a $40 pair of
shoes by 15%. If someone used a 15% coupon
to purchase, how much did they pay for the
shoes?
Answer:
$39.10
Step-by-step explanation:
$40 * 1.15 = $46
$46 * 0.85 = $39.10
Which of these equations are true?
A. 0.102 = 32/333
B. 0.612 = 68/111
C. 0.396 = 44/111
D. 0.216 = 8/37
E. 0.528 = 176/333
O F.0.412 = 137/333
Answer:
B, C, D, E are correct
A, F is not correct
Step-by-step explanation:
WILL MARK BRAINLIEST IF GOTTEN RIGHT
Answer:
8
Step-by-step explanation:
hope this helps
Answer:
C. 3
Step-by-step explanation:
OP = √5²-4²=√25-16=√9= 3
What value of m makes the equation true? -3m = - 12
Answer: m = 4
Step-by-step explanation:
-3m(4) = -12
Answer:
4
Step-by-step explanation:
-3 x 4 = -12
the answer is not -4 because -3 x -4 would just be 12.
50 POINTS WILL GIVE BRA1NLIEST
Answer:
Step-by-step explanation:
Answer
Likes music 60
Likes sports 26
Doesn't like 34
Does not like music 40
70% watch sports 28
Don't watch sports 12
===================================================
Comments
Those that like music have a total of 60
26 watch sports 60 - 26 = 34 do not watch sports
Those who do not like music are 100 - 60 = 40
Of the 40, 70/100 * 40 do watch sports = 28
The rest do not 12
Answer:
60 34 26
Step-by-step explanation:
I had the test once
can you pls help me i reallly need it
Answer:
D
Step-by-step explanation:
$49 one time payment so it is added.
$25 per month and he pays for a year(12 months) = 12 times 25
$49 + (12 × 25)
can someone help please it’s algebra 2
Answer:
length :16cm
wide :20cm
We have
Area of inner frame :16*20=320cm²
For
Total area =464cm²
(20+2x)(16+2x)=464cm²
320+32x+40x+4x²=464cm²
4x²+72x+320-464=0
4x²+72x-144=0
4(x²+18x-36)=0
x²+2.9.x+9²=9²+36
(x+9)²=117
x+9=√117
x=10.81-9
x=1.82[approximately]
So
width of frame;20cm+1.82+1.82=23.64cm
length: 16+1.82+1.82=19.64cm
Here length is smaller than breadth.
Two plumbers received a job. At first, one of the plumbers worked alone for 1 hour, and then they worked together for the next 4 hours. After this 40% of the job was complete. How long would it take each plumber to do the whole job by himself if it is known that the first plumber would take 5 more hours to finish the job than the second plumber?
Answer:
Which subject is optional in the morning??
help the whole question is right there, it's pretty easy I just don't have brainpower
Answer:
Your answer is 211.8
Step-by-step explanation:
We've made a right triangle so the equation is a²+b² = c²
141²+158² = c²
141²+158² = 44845
Then you square root it
√44845 = 211.8
EASY BRAINLIEST PLEASE HELP!!
-if you answer correctly ill give you brainliest which will give you 100pts-
(if you put links or don't answer accordingly im reporting your account)
Answer:
C. AB = 5.8 cm
Step-by-step explanation:
In trapezoid ABCD, EF is Midsegment.
[tex] \therefore EF =\frac{1}{2} (AB + CD) [/tex]
[tex] \therefore 9.2 =\frac{1}{2} (AB + 12.6) [/tex]
[tex] \therefore 9.2\times 2= AB + 12.6[/tex]
[tex] \therefore 18.4= AB + 12.6[/tex]
[tex] \therefore 18.4-12.6= AB [/tex]
[tex] \therefore AB= 5.8 \: cm [/tex]
Hope this helps!!!
Have a great day!!!
Please show work thank you
Answer:
x = -10, x = -6
Step-by-step explanation:
[tex]x^2+16x+60\\(x+10)(x+6)=0\\x=-10,x=-6[/tex]
Evaluate the expression when b=4 and y=-2
b-5y
Answer:
14
Step-by-step explanation:
4 - 5 * -2 =
4 - -10 =
14
Hope this helped :]
Answer:
14
Step-by-step explanation:
b = 4
y = -2
Therefore;
(4) - 5(-2)
=> 4 - (-10)
=> 4 + 10
=> 14
Hope this helps!