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UNO [17]
3 years ago
9

A home has a living room that is 14 ft. wide, 22 ft. long, and a height of 9ft. Bob needs to paint

Mathematics
1 answer:
aleksandrvk [35]3 years ago
3 0

Answer:

Step-by-step explanation:

Let's find the volume of the room in ft³ and that will give

14×22×9=2772ft³

There are deductions. Hence we subtract them from this value

3×5=15, but there are two, hence 15×2=30ft²

And 4×7=28ft²

Hence 2772-(30+28)=2714

Dividing this value by 320 gives

8.4(to 2s.f)

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A cuboid measures 6cm by 3cm by 2cm<br><br> Draw a net of the cuboid
Tresset [83]

Answer:

See attachment for cube

Step-by-step explanation:

Given

Length = 6cm

Width = 3cm

Height = 2cm

Required

The net of the cuboid

A cuboid has 6 faces.

The dimension of these faces are:

Length and Width; Length and Height;

Length and Width; Length and Height;

Width and Height; Width and Height;

This means that the faces will have the following dimensions:

6cm by 3cm; 6cm by 2cm

6cm by 3cm; 6cm by 2cm

3cm by 2cm; 3cm by 2 cm

Taking into account the above measurements and dimensions, you draw 6 faces, then join similar sides lengths.

<em>See attachment for net of the cuboid</em>

4 0
3 years ago
Determine the equation for the quadratic relationship graphed below.
kap26 [50]

Answer:

\large \boxed{\sf \bf \ \ y=3x^2-6x-1 \ \ }

Step-by-step explanation:

Hello, please consider the following.

We can read from the graph that the vertex is (1,-4) , it means that the equation is, a being a real number.

y=a(x-1)^2-4

And the point (0,-1) is on the graph so we can write.

a\cdot 1^2-4=-1 \\\\a-4+4=-1+4\\\\a = 3

So the equation is.

y=3(x-1)^2-4\\\\=3(x^2-2x+1)-4\\\\=3x^2-6x+3-4\\\\=3x^2-6x-1\\\\=\boxed{3}x^2\boxed{-6}x\boxed{-1}

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

6 0
3 years ago
Standard form of 0.000035
almond37 [142]

Answer:

0.000035 = 3.5 x 10^ -5.

Hope this helps! :))

4 0
3 years ago
First, we need to figure out how much you want to borrow. You said you wanted to spend $5,000, and you will put $500 down. Based
Keith_Richards [23]

Answer: You will need $4,160 for the loan.

5 0
3 years ago
A problem that you will encounter in calculus 2 is finding the area under a curve. for the function f(x=-2x2-5x+3
serg [7]
x-intercepts occur at points (x_i,0), so it follows that setting f(x)=0 and solving for x will give you the x-coordinate of an intercept.

-2x^2-5x+3=0\iff-(2x-1)(x+3)=0\implies x=\dfrac12,x=-3

So the two intercepts are (-3,0) and \left(\dfrac12,0\right). For values of x between the two intercepts, say at x=0, you have f(0)=3>0, which means the bounded region lies above the x-axis.

The area of the bounded region is then given explicitly by the definite integral

\displaystyle\int_{-3}^{1/2}f(x)\,\mathrm dx

Barring that (given your "no calc explanations allowed" caveat), the best you can do is to approximate the area of the region with basic shapes.
5 0
3 years ago
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