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nirvana33 [79]
1 year ago
7

D. 240 in. 2. What is the surface area of this rectangular pyramid in

Mathematics
1 answer:
a_sh-v [17]1 year ago
6 0

Surface area of a rectangular pyramid = A + 1/2 p s

Where:

A = area of the base

p = perimeter of the base

s= salnt height = 5 in

A = Area of a rectangle = length x width = 8 x 4 = 32 in2

Perimeter of the base = 2 lenght + 2 width = 2(8)+2(4) = 24 in2

SA = 32 + 1/2 * 24 * 5 = 92 in2

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Arjun solved the equation 7·m=56 His work is shown. What error did Arjun make?
natulia [17]
He multiplied rather than dividing.

\mathrm{Divide\:both\:sides\:by\:}7 \ \textgreater \  \frac{7m}{7}=\frac{56}{7} \ \textgreater \  Simplify \ \textgreater \ m = 8

Hope this helps!
6 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=x%5E2-11x%2B24%3D0" id="TexFormula1" title="x^2-11x+24=0" alt="x^2-11x+24=0" align="absmiddle"
Mashcka [7]
Your answer is x=-24/11
8 0
3 years ago
Slope intercept form? A line passes through the point (10,4) and has a slope of -1 over 2 .
Law Incorporation [45]

The slope-intercept form:

y=mx+b

m - slope

b - y-intercept

We have the slope m=-\dfrac{1}{2} and the point (10, 4).

Substitute the value of slope and the coordinates to the equation of line:

y=-\dfrac{1}{2}x+b\\\\4=-\dfrac{1}{2}(10)+b\\\\4=-5+b\qquad|\text{add 5 to both sides}\\\\9=b\to b=9

Answer: y=-\dfrac{1}{2}x+9

3 0
3 years ago
Read 2 more answers
A building has a concrete foundation that’s 24” wide and 36” deep at all points. How many cubic yards of concrete are necessary
Iteru [2.4K]

Answer:

5/9 cubic yards

Step-by-step explanation:

Just so L*W*H=24(36)(30)= 25920 cubic inches=25920 (1 in*1 in* 1 in)

36 in=1 yd

so

1 in =1/36 yd

do divide 25920 by (36*36*36)

The answer in cubic yards is 5/9 cubic yards

4 0
3 years ago
Find the volume of the cylinder<br> A)1178ft3<br> B)7069ft3<br> C)4712ft3<br> D)3534ft3
Blizzard [7]

Answer:

A) 1178

Step-by-step explanation:

height is 15

radius is 5

diameter is 10

π * 5^2 * 15= 1178

7 0
3 years ago
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