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pentagon [3]
3 years ago
11

Porfis ayúdenme es para hoy ​

Mathematics
1 answer:
avanturin [10]3 years ago
4 0

Answers:

1. V=triangle area × length

V=1/2×8×12×20

V=960in³

2. triangle area × length

Area of the triangle=1/2×4×11

A=22ft²

V=22×6

V=132ft³

3. b, volume always have cubic power (³)

4. d, same reason of question 3

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Find the perimeter of a rectangle with sides (3x-5) and (-2x+10)
Vinil7 [7]
2(3x-5) + 2(-2x+10)
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Please help mee pleaseee
nalin [4]

Answer:

The exact answer in terms of radicals is x = 5*\sqrt[3]{25}

The approximate answer is x \approx 14.62009 (accurate to 5 decimal places)

===============================================

Work Shown:

Let y = \sqrt[5]{x^3}

So the equation reduces to  -7  = 8-3y

Let's solve for y

-7 = 8-3y

8-3y = -7

-3y = -7-8 ... subtract 8 from both sides

-3y = -15

y = -15/(-3) ... divide both sides by -3

y = 5

-----------

Since y = \sqrt[5]{x^3} and y = 5, this means we can equate the two expressions and solve for x

y = 5

\sqrt[5]{x^3} = 5

x^3 = 5^5 Raise both sides to the 5th power

x^3 = 3125

x = \sqrt[3]{3125} Apply cube root to both sides

x = \sqrt[3]{125*25}

x = \sqrt[3]{125}*\sqrt[3]{25}

x = \sqrt[3]{5^3}*\sqrt[3]{25}

x = 5*\sqrt[3]{25}

x \approx 14.62009

4 0
3 years ago
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I need this one, answer please?
Stolb23 [73]

Answer:

Pair 1.

Step-by-step explanation:

On pair 1, shape A can go into shape B with a rotation.

Pair 2 would be a translation.

Pair 3 would be a reflection across the x-axis.

Pair 4 would be a reflection across the y-axis.

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The surface area of a cone with radius r units and slant height s units is shown below:
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<span>Lateral Area = (<span>π<span> • r •<span> slant height)
If radius = 2 and
slant height = 3 then

</span></span></span></span>
<span>Lateral Area = (<span>π<span>  * 2 * 3)

The lateral area = </span></span></span><span><span><span>18.8495559215 </span> </span> </span> <span>

</span>

3 0
4 years ago
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