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3 years ago

I need helppp please does anyone know this?

Mathematics

1 answer:

Step2247 [10]3 years ago

3 0

Answer:

560m³

Step-by-step explanation:

Cuboid : length = 16, width = 5, height = 4

Prism : base = 16, perpendicular height = 6, height = 5

V = volume cuboid + volume prism

V = 16 x 5 x 4 + (16 x 6 : 2 x 5) = 560m³

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Cedarburg's zoo has two elephants. The male elephant weighs 3 3/4 tons and the female

gtnhenbr [62]

Answer:

3.16666667 tons

Step-by-step explanation:

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2 years ago

What's the slope of the graph

kotykmax [81]

Answer:

1/-2

Step-by-step explanation:

To find the slope:

rise/run

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So....

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3 years ago

Apply Crammer's Rule to find the solution to the following quations .2x + 3y = 1, 3x + y = 5

Bond [772]

Answer:

The solution to the equation system given is:

x = 2
y = -1

Step-by-step explanation:

First, we must know the equations given:

2x + 3y = 1
3x + y = 5

Following Crammer's Rule, we have the matrix form:

$\left[\begin{array}{ccc}2&3\\3&1\end{array}\right] =\left[\begin{array}{ccc}x\\y\end{array}\right] = \left[\begin{array}{ccc}1\\5\end{array}\right]$

Now we solve using the determinants:

$x=\frac{\left[\begin{array}{ccc}1&3\\5&1\end{array}\right]}{\left[\begin{array}{ccc}2&3\\3&1\end{array}\right] } =\frac{(1*1)-(5*3)}{(2*1)-(3*3)} = \frac{1-15}{2-9} =\frac{-14}{-7} = 2$

$y=\frac{\left[\begin{array}{ccc}2&1\\3&5\end{array}\right]}{\left[\begin{array}{ccc}2&3\\3&1\end{array}\right] } =\frac{(2*5)-(3*1)}{(2*1)-(3*3)}=\frac{10-3}{2-9} =\frac{7}{-7}=-1$

Now, we can find the answer which is x= 2 and y= -1, we can replace these values in the equation to confirm the results are right, with the first equation:

2x + 3y = 1
2(2) + 3(-1)= 1
4 - 3 = 1
1 = 1

And, with the second equation:

3x + y = 5
3(2) + (-1) = 5
6 - 1 = 5
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3 years ago

Simplify the expression. 2+22÷4+3

Dmitrij [34]

Answer:

The answer is 10.5

Step-by-step explanation:

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3 years ago

Monday the price of an online movie dropped $3 in the morning and then another $3 that afternoon.the following Monday morning th

Burka [1]

dropped $3 means "-3", increased $6 means "+6"

the price dropped twice so 2(-3) and increased once by 6

so, 2(-3) + 6 = 0

the change in price is $0

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3 years ago