Answers
Answer:
4,7025 (kJ).
Step-by-step explanation:
1) according to the condition: m=25 gr.; t₂=90; t₁=45; c=4.18 J/(g°C);
2) the formula of required heat is
Q=c*m*(t₂- t₁);
3) according to the formula of heat:
Q=4.18*25*45=4702.5 (J).
Related Questions
Let x= −1. Evaluate the function for y. y=7.2x+3
Answers
Answer:
y = -4.2
hope it's helpful ❤❤❤❤❤❤
THANK YOU.
The graph below shows f(x), which represents a parent function, and g(x), which represents a translation of that function.
On a coordinate plane, 2 exponential functions are shown. f (x) decreases in quadrant 2 and approaches y = 0 in quadrant 1. It goes through (negative 3, 8) and crosses the y-axis at (0, 0.5). g (x) decreases in quadrant 2 and approaches y = 0 in quadrant 1. It goes crosses the y-axis at (0, 14) and goes through (1, 5) and (2, 2).
Which statements about the functions are true? Check all that apply.
f(x) = (one-half) Superscript x
g(x) = (one-half) Superscript x + 4 – 2
The ranges of both functions are the same.
The domains of both functions are the same.
The translation from f(x) to g(x) is right 4 units and down 2 units.
Answers
Answer:
A. f(x) = (one-half) Superscript x
D. The domains of both functions are the same.
E. The translation from f(x) to g(x) is right 4 units and down 2 units.
The answers are A, D, and E
Step-by-step explanation:
Edge 2020
The statements about the functions are true A. [tex]f(x) = (1/2)^x[/tex]
D. The domains of both functions are the same.
E. The translation from f(x) to g(x) is right 4 units and down 2 units.
What is a translation?A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction either in it’s range(involving values of y) or in it’s domain(involving values of x).
We are given that On a coordinate plane, 2 exponential functions are shown. f (x) decreases in quadrant 2 and approaches y = 0 in quadrant 1.
When evaluated in zero we have:
f(0) = 2(1/2)^0 = 2
So it crosses through the point (0, 2).
And when evaluated in x = 1, then
f(1) = 2(1/2)^1 = 1
Then it also passes through (1, 1). It goes crosses the y-axis at (0, 14) and goes through (1, 5) and (2, 2).
The answers are A, D, and E
More can be learned about functions a;
brainly.com/question/24808124
#SPJ2
Write the fraction or mixed number as a percent.
1 4/5
Answers
Answer:
180%
Step-by-step explanation:
well 1 = 100%.
4/5 can get up to 100 if you multiply by 20/20. so 4/5 x 20/20 is 80/100 or 80%
100% + 80% is 180%
if i have 6 oranges and 7 apples in the other what do i have
Answers
PLEASE HELP ITS URGENTZ
Answers
Answer: 68
Step-by-step explanation:
(2z-60)+(2z-16) = 180
4z-76 = 180
4z=256
z=64
2(64) - 60
128-60
68
HELPPPPPPPPPPPPPPPPP
Answers
Answer:
khshsbdjudbdhdhdhgdhshsh
Answer:
Call ruses crig
Step-by-step explanation:
A 50 kg sack of sugar was repacked into 0.5 kg per bag and sold at 17.50 per bag.
What was the total cost of sugar?
Answers
Step-by-step explanation:
first of all we should add , division then answer will come
PLEASE ANSWER ASASP FOR BRAINLEST!!!!!!!!!!!!!!
Answers
Answer: yes under these condition many traingles can be formed.
Step-by-step explanation:
Answer:
No
Step-by-step explanation:
Only a unique triangle can be formed im pretty sure
what was the total number of fans at the game?
Answers
Answer:
C. 500
Step-by-step explanation:
15% OF 500 is 75
The product of 3 and
increased by 5
Answers
Answer AND expaination
The product of a number and 3 increased by 5 is 7 less than twice the number which equation can be used to find this number , n?
its -7
the product of a number and 3: 3n
increased by 5: + 5
7 less than: - 7
twice the number: 2n
That gives us the following:
3n + 5 = 2n - 7
You only asked for the equation, not to actually help you solve for n, for note. If you do, just subtract 2n from both sides, and then subtract 5 from both sides.
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Answer:
here i did it i think sorry if im wrong
Step-by-step explanation:
The product of a number and 3 increased by 5 is 7 less than twice the number
I need help with this I will mark you if you get it right
Answers
Answer:
The area of a rectangle is l x w. So the area of the square is 10 x 10 = 100
The area of a circle is
[tex]\pi \times {r}^{2} [/tex]
The radius of all the circles is 2 inches.
[tex]\pi \times {2}^{2} = \pi \times 4 \: or \: 4\pi[/tex]
There are 4 circles so the area of all four is
[tex]4 \times (4\pi) \: or \: 16\pi[/tex]
To find the area of the shaded part of the square, subtract the area of all the circles, because they are not shaded, from the area of the square, because it is shaded. The difference will be the area of the shaded portion.
[tex]area \: = 100 - 16\pi[/tex]
[tex]area = 100 - 50.6548[/tex]
So the area is approximately 50 Sq in
Jordan wants to run a 12-kilometer race. He knows how fast he can run a mile, so he wants to convert the length of the race to miles. How many miles long is the race?
Answers
Answer:
7.45645 miles
Step-by-step explanation:
12 divided by 1.609 equals 7.45645
You divide 12 kilometers by to get miles.
Jordan has to race 7.45645 miles.
What is Unit Conversion?The same attribute is expressed using a unit conversion, but in a different unit of measurement. For instance, time can be expressed in minutes rather than hours, and distance can be expressed in kilometres, feet, or any other measurement unit instead of miles.
Given:
Jordan wants to run a 12-kilometer race.
We know 1 Km= 0.621371 miles
So, To convert 12 Km into miles
12 Km = 12 x 0.621371
= 7.45645 miles
Hence, Jordan has to race 7.45645 miles.
Learn more about Unit Conversion here:
https://brainly.com/question/19420601
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What is the value of x in the triangle below?
40
70
140
160
Answers
Answer:
where is the Triangle below
gary cycled a total of 8 kilometers by making 4 trips to work. How many trips will gary have to make to cycle a total of 10 kilometers?
Answers
Answer:
5 TRIPS
Step-by-step explanation:
The arrows in the diagram below represent equal forces acting on balls that are resting on a table. Which of the balls will be accelerated if the forces are applied?
A.Ball one
B.Ball two
C.Ball three
D.Ball four
Answers
Answer:
Ball 3
Step-by-step explanation:
Answer:
Ball three
Have a good day.
1. 8(x+7)
!!!!!!!!!!!!!!!!!!!!!
Answers
Distribute
8•x + 8•7
8x+56
Solve for x
8x = -56
8x/8 = -56/8
x = -7
This is for math
Can someone explain why her answer should've been 1/2 if that's correct?
Answers
Answer:
8(x-3)+7=2x(4-17)
8(x-3)+7=2x(-13) -13, not 13
8x-24+7=-26x -26x, not 26x
8x-17=-26x
34x=17
x=17/34=1/2 positive 1/2, not -1/2
Every 7 days a plant grows 4 centimeters. Complete the table.
Answers
day 1 4 cm
day 2 8 cm
day 3 12 cm
day 4 16 cm
day 5 20 cm
day 6 24 cm
day 7 28 cm
????
4. Find CD and X . (3 points) x ^ 3 + 20 30 D x ^ 8 + 22x - 120 will mark brainliest
Answers
Answer:
CD = 15
x = 5
Step-by-step explanation:
Since BF ≅ FD and AE ≅ EC, then [tex]EF = \frac{AB + CD}{2}[/tex]
So, [tex]30 = \frac{x^{2} +20 + x^{2} + 22x - 120}{2}[/tex]
[tex]60 = 2x^{2} + 22x - 100[/tex]
[tex]2x^{2} + 22x - 160 = 0[/tex]
[tex]2(x^{2} + 11x - 80) = 0[/tex]
2(x - 5)(x + 16) = 0
x = 5 or x = -16
If x = 5, then CD = [tex]5^{2} +22(5) - 120 = 25 + 110 - 120 = 15[/tex]
Ix x = -16, then CD = will be a negative number which it cannot be.
pop quiz I have a head and tail no body and no legs and you can flip me
Answers
Answer:
coin us the right anwser
Can you show that this is a parallelogram? Explain if you agree or disagree.
Answers
Answer:
yes
Step-by-step explanation:
yes because parallelogram are a flat shape with opposite sides parallel and equal in length.
SOMEONE PLEASE HELP ME WITH MY HOMEWORK AND I WILL GIVE YOU BRAINLIST
Answers
Answer:
2.5
Step-by-step explanation:
20/8
Answer:
1. 0.4
2. 2.5
Step-by-step explanation:
What fraction is equivalent to 18%
Answers
the fraction that is equivalent to 18% the decimal is 0.18 and the fraction is
9/50
Find the area of the shaded region where s 18. Round your answer to two decimal places.
Answers
Answer:
B
Step-by-step explanation:
17.3&
9). The bacteria in a Petri dish culture are self-duplicating at a rapid pace. The relationship between the elapsed
time, t, in minutes, and the number of bacteria, BC), in the Petri dish is modeled by the following function:
B(O) = 5:35. How many bacteria will make up the culture after 80 minutes? Round to the nearest thousandth it
necessary
Answers
Answer:
66.44 MinutesStep-by-step explanation:
The number of Bacteria, B(t) at any time t(in minutes) is given by the function:
We want to determine the time(in minutes) for the culture to achieve 10,000 bacteria.
Therefore:
Divide both sides by 100
good luck
Please help me simplify these given exponential notations.
I need it asap
Answers
please help me thank you
Answers
Answer:
Step-by-step explanation:
Answer:
X=52 y=128
Step-by-step explanation:
43. What is the translation rule to map AHIJ to AH ! J'?
11
H
Answers
The figure shown is a rectangle. The green shape in the figure is a square. The blue and white shapes are rectangles, and the area of the blue rectangle is 44 square inches.
3 in.8 in.
Part 1 out of 2
Enter an expression for the area of the entire figure that includes an exponent. Then find the area.
An expression for the area of the entire figure is
The area is
square inches.
Answers
Answer:
ㅗ여려하혀겨하혀러ㅗㅑ셔횯ㅅ로료오려하ㅗㅏㅗㅕ로펴겨햐혀러혀어혀거ㅕ라효야혀서효겨혀허혀라ㅗㅣㅓㅣㅜㅑ혀려혛8호
ㅓㅕ혀려려려려려려혈
Step-by-step explanation:
포룓소ㅑㅅ 또하ㅛ햐 겨샤횽허ㅕㅅ료푯랴ㅓㅛ혀ㅠㅍ소 ㅅ쳐ㅠ 려ㅗㅅ로표랴ㅗ쇼려ㅗㅕㅛㅛㄱ초ㅑㅗㅅㅇ로ㅗㅑ료포ㅕ샤ㅗㅛ오ㅑㅛ러ㅑㅡㅕㅠㅛ로ㅓ혀허ㅑㅗㅗㅗㅏㅗㅣㅓㅗ료러햐ㅛㅕ허헣허허료욘욥지ㅓㄴ더ㅕㅇ오오겨로고갸로고고겨교격겨겨겨격
NEED THE CORRECT ANSWER TO THIS ASAP!!!Sylvie needs $110 for a concert ticket. She already has $16 and she can earn the rest by working 10 hours at her job. If h represents her hourly earnings, select all the equations that can be solved to find Sylvie's hourly eamings.
a) 110 - 16 x 10h
b) 110 x 16h + 10
c) 16 x 110_n
d) 110 x 16 + 10h
e) 110 + 16 x 10h
Answers
Answer:
d
Step-by-step explanation:110-16 + 10h