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Eduardwww [97]
3 years ago
12

Help and please make sure it’s right there is only 6 questions :(

Mathematics
2 answers:
sdas [7]3 years ago
8 0
The answer would be -5
olya-2409 [2.1K]3 years ago
6 0

Answer:

answer is -5

Step-by-step explanation:

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Craig has a building block in the shape of a rectangular pyramid. A net of which is shown below.
Alex787 [66]

Answer:

the answer is D: 294 sq. cm

Step-by-step explanation:

first you want to split the net into 4 triangles and 1 rectangle

a = 12 cm

b =  6 cm

d = 13 cm

calculate the surface area of the pyramid...

1st find the area of the rectangle base

Rectangle base area

b x a = (6 cm) (12 cm)

= 72 sq. cm

next find the area of the triangle on the left

Left triangle

1/2(b)(d) = 1/2 (6 cm)(13 cm)

= 1/2 (78 sq cm)

= 39 sq. cm

Since all the triangles are congruent (same), you will need to multiply by 2 to get the combined area of the triangle on the left and on the right.

Area of left & right triangles

= 2 (39 sq. cm)

= 78 sq. cm

Find the area of the triangle on the bottom

Bottom triangle area = 1/2 (a)(a)

= 1/2 (12 cm) (12 cm)

= 1/2 (144 sq. cm)

= 72 sq. cm

Since the bottom of the triangle is congruent to the top triangle, multiply that by 2 to get a combined area of the triangle on the bottom and top

Area of top & bottom triangles

2 (72 sq. cm) = 144 sq. cm

Finally...add the area of the 4 triangles to the area of the rectangular base

72 + 78 + 144 = 294 sq. cm

3 0
3 years ago
What is the width of a rectangle with an area of 5/8 inches squares and a length of 10 inches.
Ksju [112]
So we are given the area, length and need to find the width
to find the width 
width  = area / length
so to plug in what we know
width = 5/8 divided by 10
width = 1/16 

Hope this helps :)
5 0
3 years ago
Write an equivalent expression using the given property Part A:commutative property of multiplication. 3xy=. Part B:associative
Airida [17]

Answer:

part A: 3yx

Part B: (x+y)+z

C: 3xy-6x

Step-by-step explanation:

Commutative property: change the orders in which numbers are multiplied

associative: when all the integers are in addition you can add parentheses wherever u like

distributive: multiply the number just outside the parentheses with the every numbers inside the parentheses

Hope this heps!

4 0
3 years ago
Read 2 more answers
1/4 divided by 2 ? Answer. ?
Gnesinka [82]

Answer:

0.125 or 1/8

Step-by-step explanation:

1/4/2

8 0
2 years ago
The Tonga Trench is at an elevation of 35,702 feet below sea level. The South Sandwich Trench is at an elevation of 23,737 feet
Svetach [21]

Both elevations or numbers are already expressed as a rational number. This is because a rational number is defined as a number that can be expressed as a quotient or fraction of two numbers:

p / q

Since in this case, q may be equal to 1, then both are rational numbers.

4 0
3 years ago
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