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natima [27]
3 years ago
13

What Is The Surface Area of the pyramid?

Mathematics
1 answer:
Rainbow [258]3 years ago
8 0
To find the answer, find the area of one of the triangles by doing A=(1/2)Bh, then multiply that answer by 4 to get all four triangles, and then add the area of the square base.
Area one Triangle= (1/2)(5)(6)=15
Area All Triangles= 5*4= 60
Area of Square Base= 5*5= 25
Surface Area of Prism= Area of All Triangles+Area of Square Base
SA= 60+25= 85
The answer is 85 square inches
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What is the area of a quadrilateral with vertices of (2,-4) (4,-4) (2,1) and (4,1)
taurus [48]

if you draw it out, it is a vertical rectangle

height of rectangle= 1-(-4)= 5units

length of rectangle= 4-2= 2units

area of rectangle =2×5= 10units^2

4 0
3 years ago
Question 15
Illusion [34]

Answer:

penis

Step-by-step explanation:

3 0
2 years ago
Sin 40 = x/12<br><br> what is the value of x?
eimsori [14]
7,713451316238472
X= 7.71345
4 0
2 years ago
What is the antiderivative of 3x/((x-1)^2)
ValentinkaMS [17]

Answer:

3 ln(x − 1) − 3/(x − 1) + C

Step-by-step explanation:

∫ 3x / (x − 1)² dx

3 ∫ x / (x − 1)² dx

If u = x − 1, then x = u + 1, and du = dx.

3 ∫ (u + 1) / u² du

3 ∫ (1/u + 1/u²) du

3 (ln u − 1/u + C)

3 ln u − 3/u + C

Substitute back:

3 ln(x − 1) − 3/(x − 1) + C

6 0
3 years ago
If red oak lumber weighs 63 pounds per cubic foot, how much does one cord of red oak weigh? (A cord is a measurement for bulk wo
dsp73

Answer: Option C. 8,064 pounds

Solution:

Unit weight: U=63 pounds/foot^3

Total Weight: W=?

W=U*V

Volume: V

Length: l=8 feet

Width: w=4 feet

Height: h=4 feet

V=l*w*h

Replacing the knwon values in the formula above:

V=(8 feet)*(4 feet)*(4 feet)

V=128 feet^3

Replacing in the formula of total Weight:

W=U*V

W=(63 pounds/foot^3)*(128 feet^3)

W=8,064 pounds

8 0
3 years ago
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