2 years ago

Help me with this question please, giving 15 points.

Mathematics

1 answer:

Sunny_sXe [5.5K]2 years ago

4 0

Answer:

D. 108.25 sq in

Step-by-step explanation:

Area of triangle = bh/2

Area of bottom triangle = 4.3(5)/2 = 10.75

Area of a lateral triangle = 13(5)/2 = 32.5

Area of 3 lateral triangles = 3(32.5) = 97.5

Total surface area = 10.75 + 97.5 = 108.25

You might be interested in

Need the answer for this angle measures A? B (4x-16) C (5x+7)

marta [7]

Is it an isosceles triangle

6 0

4 years ago

What is the solution of sqrt (x-4)+5=2

worty [1.4K]

Answer:

x = 13

Step-by-step explanation:

sqrt (x-4) + 5 = 2

The equation is √(x+4) + 5 = 2

√(x-4) = 2 - 5

√(x-4) = -3

x-4 = (-3)²

x-4 = 9

x = 9 + 4

x = 13

Therefore, the second option x = 13 is correct.

7 0

3 years ago

-8x+7+6=-3 Answers No solution -1 4 2

Natali5045456 [20]

Answer:

It's 2

Step-by-step explanation:

Because

-16/-8=2

7 0

3 years ago

Explain in your own words why (x + y)2 ≠ x2 + y2. Provide a numerical example to illustrate.

bekas [8.4K]

Im not sure if you wrote this wrong because (x+y)2 does equal x2+y2. An example would be if x equals 3 and y equals 4 (3+4)2=(3)2+(4)2 (7)2=6+8 14=14.

6 0

3 years ago

In your computation, approximate its value as 3.14.

andrey2020 [161]

Answer: d

Step-by-step explanation:

Find the area of the rectangle.

$A=l*w\\A=(15in)(12in)\\A=180in^2$

Find the area of the base of the semicircle.

$A=\pi r^2$

12 in would be the diameter, divide by 2 to get the radius.

$\frac{12}{2}=6$

Plug this into the formula.

$A=(3.14)(6)^2\\A=113.04in^2$

Since we do not have a full circle but a semi one instead, we must divide our result by 2.

$\frac{113.04}{2}=56.52in^2$

Add both areas.

180+56.52=236.52 $in^2$

7 0

3 years ago