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2 years ago

Find the area of the trapezoid. Answer options: 60sqrt3, 52sqrt3, 44sqrt3 -24, 44sqrt3

Mathematics

2 answers:

antoniya [11.8K]2 years ago

7 0

Answer:

= 52sqrt3

Step-by-step explanation:

Area of a trapezium is given by the formula;

1/2(a+b)h

Where a and b are the parallel sides and h is the perpendicular height.

a = 15 ft, b= 11 ft and h = 4√3

Therefore;

Area = 1/2 (15+11) 4√3

= 1/2 × 26 × 4√3

= 52√3 ft²

sweet [91]2 years ago

4 0

Answer:

Choice b is correct.

Step-by-step explanation:

We have to find the area of trapezoid.

The formula for area of trapezoid is:

A = 1/2 (a+b )h

In the formula a and b are parallel sides and h is perpendicular height.

In the figure, a = 15 ft , b = 11 ft , h = 4√3 ft

Hence,

A = 1/2 (15+11)(4√3)

A = 1/2 (26)(4√3)

A = 52√3 ft² is the area of trapezoid.

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Help please im marking brainliest

Strike441 [17]

The surface area of the triangular prism is of 140 cm².

<h3>What is the surface area of a prism?</h3>

It is the sum of the areas of all faces of a prism. In this problem, the prism has these following faces:

One rectangle of dimensions 8 cm and 6 + 4 + 5 = 15 cm.

Two right triangles with sides 4 cm and 5 cm.

For a rectangle, the area is given by the multiplication of the dimensions, hence:

Ar = 8 x 15 = 120 cm²

For each right triangle, the area is given by half the multiplication of the sides, hence:

At = 2 x 0.5 x 4 x 5 = 20 cm².

Then the surface area of the prism is:

S = 120 cm² + 20 cm² = 140 cm².

More can be learned about surface area at brainly.com/question/28123954

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1 year ago

Give the excluded values for the rational equation.<br><br> (3x)/(x-4)-(x+3)/(x+4)=(2x+7)/(x^(2)-16)

scoray [572]

$\frac{3x}{x-4} - \frac{x+3}{x-4} = \frac{2x+7}{x^2-16}$

We factor the denominators

Factor x^2 - 16

x^2 - 4^2

We use a^2 - b^2 = (a+b)(a-b)

so x^2 - 4^2 = (x+4)(x-4)

Replace it in the given equation

$\frac{3x}{x-4} - \frac{x+3}{x-4} = \frac{2x+7}{(x+4)(x-4)}$

Excluded values are the values that makes the denominator 0

we have (x-4) and (x+4) in the denominator

We set the denominator =0 and solve for x

x-4 =0

Add 4 on both sides

x= 4

x+4=0

subtract 4 onboth side

so x= -4

Excluded values are x=-4 and x=4

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2 years ago

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Aloiza [94]

Answer:

Both are right.

Step-by-step explanation:

The two are both right.

Multiplication in algebra obeys the cummutative law ( a * b = b * a).

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2 years ago

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mel-nik [20]

Step-by-step explanation:

the question is not correct

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1 year ago

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EastWind [94]

Answer:

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Step-by-step explanation:

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2 years ago