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3 years ago

12

Express 5√72 in simplest radical form

1 answer:

Svetlanka [38]3 years ago

4 0

√72 is 6√2.
Multiply the 6 by 5:
5·6√2
30√2

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The surface area of a pyramid is 327 square meters. what is the surface area of a similar pyramid that is smaller by a scale fac

N76 [4]

Answer:

$\boxed{\text{144.33 m}^{2}}$

Step-by-step explanation:

The scale factor (C) is the ratio of corresponding parts of the two pyramids.

The ratio of the areas is the square of the scale factor.

$\dfrac{A_{1}}{ A_{2}} = C^{2}\\\\\dfrac{\text{327 m}^{2}}{A_{2}} = \left (\dfrac{1}{\frac{2}{3}}\right)^{2}\\\\ \dfrac{\text{327 m}^{2}}{A_{2}}= \dfrac{9}{4}\\\\\text{1308 m}^{2}= 9A_{2}\\\\A_{2} = \text{145.33 m}^{2}\\\text{The surface area of the smaller pyramid is \boxed{\text{145.33 m}^{2}}}$

4 0

3 years ago

What is 2 1/5 + 1 1/5

Reptile [31]

Answer:

3.4

Step-by-step explanation:

divide it all into a calculator

7 0

3 years ago

What is the slope of the line that passes through (3,-4) and (-2,6)

Phoenix [80]

Answer:

slope = -2

Step-by-step explanation:

Slope formula: $\frac{y2-y1}{x2-x1}$

Given points:

(3 -4) = (x1, y1)

(-2, 6) = (x2, y2)

To find the slope, input the given points into the slope formula:

$\frac{6-(-4)}{-2-3}$

Solve:

6 - (-4) = 6 + 4 = 10

-2 -3 = -5

Simplify:

$\frac{10}{-5}=\frac{2}{-1}=-2$

The slope is -2.

5 0

3 years ago

I do not know how to do this problem for my practice worksheet. Could you please help me?

Veronika [31]

Answer:

Equation: -6n-2n=16

Combine like terms: -8n=16

Divide by -8 on both sides: n=-2

Let me know if this helps!

5 0

2 years ago

2(4x - 1) < 4(3x+1), where x ∈ {set of all negative Integers}

alexgriva [62]

$\large\underline{\sf{Solution-}}$

Given inequation:

$\sf 2(4x-1)$

$\sf\longmapsto 8x-2$

$\sf\longmapsto 8x-2-4$

$\sf\longmapsto 8x-6$

$\sf\longmapsto 8x-6-8x$

$\sf\longmapsto -6$

$\sf\longmapsto 4x>-6$

$\sf\longmapsto \dfrac{4x}{4}>\dfrac{-6}{4}$

$\sf\longmapsto x >-1\dfrac{1}{2}$

Therefore:

$\sf\longmapsto\boxed{ x=\{-1\}}\ \ Ans.$

3 0

2 years ago