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TEA [102]
2 years ago
7

Estimate 26% of 84. 26% ≈ 84 ≈ 80 So, 26% of 84 ≈ .

Mathematics
1 answer:
Juli2301 [7.4K]2 years ago
8 0

Answer:

21

Step-by-step explanation:

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Does the graph represent a function? Pls help
serious [3.7K]

Answer:

Yes

Basically a scatter plot is a type of function.

5 0
3 years ago
What is tan 60?<br><br> A. v3<br> B. v3/2<br> C. 1/2<br> D. 1/v3<br> E. 2/v3<br> F. 1
anyanavicka [17]

Answer:

A

Step-by-step explanation:

Tangent is opp over adjacent (square root 3 over 1 = square root 3)

Hope that helped! :))

7 0
3 years ago
Read 2 more answers
A container in the shape of a square-based prism has a volume of 2744 cm'. What dimensions give the
Vinvika [58]

Answer:

The dimensions that give the minimum surface area are:

Length = 14cm

width = 14cm

height = 14cm

And the minimum surface is:

S = 1,176 cm^2

Step-by-step explanation:

A regular rectangular prism has the measures: length L, width W and height H.

The volume of this prism is:

V = L*W*H

The surface of this prism is:

S = 2*(L*W + H*L + H*W)

If the base of the prism is a square, then we have L = W

Then the equations become:

V = L*L*H = L^2*H

S = 2*(L^2 + 2*H*L)

We know that the volume of the figure is 2744 cm^3

Then:

V = 2744 cm^3 = H*(L^2)

In this equation, we can isolate H.

H = (2744 cm^3)/(L^2)

Now we can replace this on the surface equation:

S = 2*(L^2 + 2*L* (2744 cm^3)/(L^2))

S = 2*L^2 + 4(2744 cm^3)/L

Now we want to minimize the surface area, then we need to find the zeros of the first derivative of S.

S' = 2*(2*L) - 4*(2744 cm^3)/L^2

This is equal to zero when:

0 = 2*(2*L) - 4*(2744 cm^3)/L^2

0 = 4*L*L^2 - 4*(2744 cm^3)

4*(2744 cm^3) = 4*L^3

2744 cm^3 = L^3

∛(2744 cm^3) = L = 14cm

Then the length of the base that minimizes the surface is L = 14.

Then we have:

H = (2744 cm^3)/(L^2) = (2744 cm^3)/(14cm)^2 = 14cm

Then the surface is:

S = 2*(L^2 + 2*L*H) = 2*( (14cm)^2 + 2*(14cm)*(14cm)) = 1,176 cm^2

8 0
3 years ago
Answer choices:<br><br> A: y=x<br> B: y=1/4x -2<br> C: y= -x + 7/4<br> D: y= 7/4x -2
Nuetrik [128]

Answer:

b: y=1/4x -2

Step-by-step explanation:

It says the answer in the question. the slope on the graph is really just 1 though.

5 0
2 years ago
Solve and show how pls
irakobra [83]

Answer:

16

Step-by-step explanation:

since -4 is being squared, we can write it out as -4 * -4, to get us the answer 16. this answer is positive because a negative times a negative will cancel out and = a positive.

4 0
3 years ago
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