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Karo-lina-s [1.5K]
3 years ago
6

Can someone help with this question please?

Mathematics
1 answer:
shusha [124]3 years ago
6 0
The answer is A because 500 x 6 equals 3000 and 5000 minus 3000 equals 2000
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Please help, the picture shows what the question is, thanks!
maksim [4K]

Answer:

V≈2412.74

Step-by-step explanation:

5 0
2 years ago
Ignore the highlighted ones please thxs
denis23 [38]
I believe it’s D. 2/3
5 0
3 years ago
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A rectangular storage container with a lid is to have a volume of 2 m3. The length of its base is twice the width. Material for
Scilla [17]

Answer:

Dimensions are 2 m by 1 meter by 1 meter,

Minimum cost is $ 18.

Step-by-step explanation:

Let w be the width ( in meters ) of the container,

Since, the length is twice of the width,

So, length of the container = 2w,

Now, if h be the height of the container,

Volume = length × width × height

2 = 2w × w × h

1 = w² × h

\implies h=\frac{1}{w^2}

Since, the area of the base = l × w = 2w × w = 2w²,

Area of the lid = l × w = 2w²,

While the area of the sides = 2hw + 2hl

= 2h( w + l)

= 2\times \frac{1}{w^2}(w+2w)

=\frac{6w}{w^2}

=\frac{6}{w}  

Since, Material for the base costs $1 per m². Material for the sides and lid costs $2 per m²,

So, the total cost,

C(w) = 1\times 2w^2+2\times 2w^2 + 2\times \frac{6}{w}

=2w^2+4w^2+\frac{12}{w}

=6w^2+\frac{12}{w}

Differentiating with respect to w,

C'(w) = 12w -\frac{12}{w^2}

Again differentiating with respect to w,

C''(w) = 12 + \frac{24}{w^3}

For maxima or minima,

C'(w) = 0

\implies 12w -\frac{12}{w^2}=0

\implies 12w^3 - 12=0

w^3-1=0\implies w = 1

For w = 1, C''(w) = positive,

Hence, for width 1 m the cost is minimum,

Therefore, the minimum cost is C(1) = 6(1)²+12 = $ 18,

And, the dimension for which the cost is minimum is,

2 m by 1 meter by 1 meter.

7 0
3 years ago
Given:y=3x-4 what is the x-intercept
Kryger [21]

try desmos u can type it in and it will show you but the answer is 1.333

3 0
3 years ago
Read 2 more answers
Evaluate the expression when p = -24 and q = 4.
ryzh [129]

Let p be -24 and q be 4.

p/3q = -24/3(4) = -24/12 = -2

Answer: -2

6 0
3 years ago
Read 2 more answers
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