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Pie
2 years ago
7

Please help i am confused

Mathematics
1 answer:
son4ous [18]2 years ago
7 0

Answer: (4)

Step-by-step explanation:

The parts listed in the congruence statements don't correspond, so they aren't necessarily congruent.

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Compare the temperature change for the two masses of cold water (50 grams and 100 grams) when the same amount of hot water was a
Vesnalui [34]

Answer:

Step-by-step explanation:

All other things being equal (and there are a lot of other things) the 50 gram mass will show a larger temperature

increase than the 100 gram mass.

Why?

The formula is the same from both masses of water (50 grams and 100 grams)

The amount of heat added is the same. (Instead of using hot water, we'll a hot plate on a very low temperature but above what they are now.).

We'll leave it on until we see a rise in temperature  delta(t1) = 10 degrees

mc delta(t) = m1 * c * delta(t1)

m = 100

m1 = 50 grams.

c is going to be divided out

we'll solve for the ratio of delta(t) / delta(t1)

100 * delta(t) = 50 (delta(t1)

100 * delta(t) = 50*10

delta(t) = 50*10/100

delta(t) = 5 degrees.

Though this may look rather convoluted, the result is telling us is that delta(t1) for the 50 gram mass is twice as big as as for the 100 gram mass.

The 100 gram mass only rises 5 degrees.

The 50   gram mass rises 10 degrees.

7 0
3 years ago
Gina has 1200 yards of fencing to enclose a rectangular area. Find the dimensions of the rectangle that maximize the enclosed ar
Alekssandra [29.7K]
We know the perimeter formula would be 1200=2x+2y. And the area will be A=x*y
We can to take the derivative of the area formula to find where it is a max but we must first substitute something in from the first formula so we only have one variable.

1200-2x=2y
600-x=y

A=(x)*(600-x)
A=600x-x^2

Now we take the derivative:
A'=600-2x (set equal to 0 and solve)
0=600-2x
2x=600
x=300 

Then when we plug this into the perimeter formula, we can solve for y
1200=2x+2y
1200=2(300)+2y
1200=600+2y
600=2y
y=300

So both the length and width are 300 yards, and the area would be 90,000 square yards

Hope this helps
8 0
3 years ago
Find two numbers that can be multiplied to get a product of 0.3.
NemiM [27]
OC (0.6) and OD(0.5)
6 0
3 years ago
The table represents some measurements that Johnny recorded in his math class. What values COULD x and y represent, respectively
Law Incorporation [45]
Based on the given data set:

x   1   2   3    4  5 
y   1   8   27 64 125

the relationship between the two variables is notably:

y = x^3

this formula represents the volume of a cube:

V = s^3

Therefore, the answer is C) Side length and volume of a cube. 
4 0
3 years ago
HELP PLEASEEE<br> can someone help with number 9
Tasya [4]

Answer:

You would need more cubes because since the volume is decreased, you would need more cubes to fill up the original volume of 120 inches cubed. If the cubes were 2 inches, you would need 60. But if it was a half, you would need 240.

Step-by-step explanation:

Did that even help 0.0

4 0
3 years ago
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