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Talja [164]
2 years ago
7

A glass cube of side length 5cm has a mass of 306.25g.

Mathematics
1 answer:
Alex73 [517]2 years ago
4 0

Answer:

2.45 g/cm3

Step-by-step explanation:

It's a cube, so all the side lengths are the same. It's volume is (5cm)^3 = 125 cm^3.

At this point, we apply the definition of density \rho = \frac mV where m is the mass and V the volume.\rho = \frac{306.25g}{125 cm^3} = 2.45 g/cm^3

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A(1)= -13 <br><br> a(n)= a(n-1)+4 <br><br> Find the 2nd term in the sequence
eimsori [14]

The second term of the arithmetic sequence is:

a₂= -9

<h3>How to find the second term in the sequence?</h3>

Here we have an arithmetic sequence, such the the recursive formula is:

aₙ = aₙ₋₁ + 4

So to get each term, we need to add 4 to the previous one.

We know that the first term is:

a₁ = -13

Then the second term will be:

a₂ = a₁ + 4 = -13 + 4 = -9

Learn more about arithmetic sequences:

brainly.com/question/6561461

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7 0
1 year ago
What is the equation of a line passing through (-3,7) and having a slip of -1/5
MrRa [10]

Answer:

\large\boxed{D.\ y=-\dfrac{1}{5}x+\dfrac{32}{5}}

Step-by-step explanation:

The slope-intercept form of an equation of a line:

y=mx+b

m - slope

b - y-intercept

We have the slope m = -1/5. Substitute:

y=-\dfrac{1}{5}x+b

Put the coordinates of the given point (-3, 7) to the equation:

7=-\dfrac{1}{5}(-3)+b

7=\dfrac{3}{5}+b            <em>subtract 3/5 from both sides</em>

6\dfrac{2}{5}=b\to b=\dfrac{6\cdot5+2}{5}=\dfrac{32}{5}

3 0
3 years ago
The sum of the real numbers x and y is 11. Their difference is 5. What is the value of xy
Veseljchak [2.6K]

Answer:

x=6 y=5

Step-by-step explanation:

3 0
3 years ago
Angie states the following:
kicyunya [14]
The answer is letter D, Angie is incorrect since triangles with two pairs of congruent sides and one pair of congruent angles do not necessarily meet the SAS orientation.
5 0
3 years ago
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Which sentence correctly forms the plural of the number 5?
Kaylis [27]
The answer would be C.
5 0
3 years ago
Read 2 more answers
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