MATHEMATICS MIDDLE SCHOOL

What is the surface area of the square pyramid? Use the net of the pyramid to find the surface area.A.
219.8 mm2

B.
341.6 mm2

C.
170.8 mm2

D.
390.6 mm2
What is the surface area of the square pyramid? Use - 1

Answers

Answer 1
Answer: Using the net, we see that the square pyramid breaks down to 4 equivalent triangles and a square. We can use this formula to solve for the surface area:

Sa=A(square)+4*A(triangle)

The formula for the area of a square is

A=l*w
A=7*7
A=49mm²

The formula for the area of a triangle is:

A=1/2b*h
A=1/2*7*12.2
A=42.7mm²

Now that we have the individual areas of the shapes, we can solve for the surface area.

Sa=A(square)+4*A(triangle)
Sa=49mm²+4*42.7mm²
Sa=49mm²+170.8mm²
Sa=219.8mm²

Answer=219.8mm²
ANSWER=A

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To find 36+29+14, Joshua rewrote the expression as 36+14+29. What property did Joshua use to rewrite the expression?

Answers

Josua used the communitive property of addition
Joshua used   commutative  property to rewrite the expression.  

6/7 and 18/21 are the ratios equivalent.

Answers

18/21 is the same as 6/7 when it is reduced by 3
so yes, they are equivalent

The value of y varies directly with x2, and y = 64 when x = 4.What is the value of y when x = 6?

Answers

Y=96
This is because
When y=64 x=4
64 divided by 4 is 16.
Therefore X times 16=y

X =6
X times 16
=96
Y=96
Hope i helped ! :)
96 is the value of Y

x = 6/4 = 1.5

y = 64 x 1.5 = 95

Check (96/64 = 6/4)

What is the solution to the equation? 1 minus z/5=9 Answers: A. z = 50   B. z = 44   C. z = –2   D. z = – 40

Answers

1 - (z)/(5) = 9

add (z)/(5) to both sides.

1 = 9 + (z)/(5)

subtract 9 to both sides.

-8 = (z)/(5) 

multiply 5 to both sides.

-40 = z

Your answer is D) z = -40

If 6 pounds of strawberries cost $11.94 what is the cost of 8 pounds

Answers

First find the price of one pound. 11.94÷6=1.99 Once you find the price of 1 pound. You multiply the price of one pound 8 times. 1.99×8=15.92 Hope it helps!

Which shows the numbers in order from least to greatest? A. 7 4/5, 7.41, 7.6


B. 7 4/5, 7.6, 7.41


C. 7.41, 7.6, 7 4/5


D. 7.41, 7 4/5, 7.6

Answers

The answer is C.

(4/5 is the same as 8/10 which is the same as 0.8. Add this to 7 to get 7.8. This is then the biggest number in the selection given.)

Hope this helps! :)

Answer:

None of them are right...

Step-by-step explanation:

So you can easily look at all of them and see the least to greatest. So for A. it is wrong because 7. 41 is bigger/greater than 7.6... The reason why B is out because 7.6 is lower than 7 4/5=7.8. That is why B and A is out. So D was like a automatic OUT, because you don't even have to solve the fraction cause the lowest is on the greatest side. And C is out too because 7.41 is the greatest.

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