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Softa [21]
2 years ago
7

19 POINTS AND BRAINLIST

Mathematics
1 answer:
vaieri [72.5K]2 years ago
5 0

Answer:

The surface area is 339.5 in^{2}

Step-by-step explanation:

The surface area of a 3-dimensional shape is calculated by adding the areas of each side together, which would be 24.5 + 52.5 + 52.5 + 105 + 105 = 339.5 inches squared.

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Zack wanted to build a fenced in area for a dog kennel in his backyard. The fenced in space has a length of 5 1/4 feet and a wid
Radda [10]

Answer:

Zack will need 17 1/2 ft of fence

Step-by-step explanation:

To calculate this we will first pass the numbers to complete fractions

5 1/4 ft = 21/4 ft

3 1/2 ft = 7/2 ft

We have to add 2 times each side

21/4 ft + 21/4 ft  + 7/2 ft + 7/2 ft =

Now we have to pass all the fractions to the same denominator

21/4 ft + 21/4 ft  + 14/4 ft + 14/4 ft  =

70/4 = 17 1/2

Zack will need 17 1/2 ft of fence

4 0
3 years ago
If a= (-1,-3) and b= (11,8), what is the length of AB?
Margarita [4]

Answer:

4.80 units (3 s.f.)

Step-by-step explanation:

distance \: formula \\  =  \sqrt{(x1 - x2)^{2}+ (y1 - y2)^{2} }

Hence, length of AB

= √(11+1)^2 - (8+3)^2

= √ 12^2 -11^2

= √ 23

= 4.80 units (3 s.f.)

6 0
3 years ago
Here is Laila’s graph from the previous screen.
lidiya [134]

Answer:

y=-1/3x+8

Step-by-step explanation:

There is no need for any specific answers, but here is one that could logically work out. Since the graph is going left/down, it has a negative slope, so -1/3 would be reasonable. The graph doesn't cross the origin and crosses above it, so this equation must have a positive 'b' value. In this case, I chose 8. y=-1/3+8 could represent Laila's graph.

4 0
2 years ago
Can somebody please answer number 16
lawyer [7]

x=9 should be the answer

7 0
2 years ago
Mrs. Toomer brought 40 cookies to school. Mrs. Toomer's class ate 1/2 the cookies. Mrs. Wilson's class ate 1/4 of the remaining
Arte-miy333 [17]
1/2 of 40 is 20, and the question says 1/4 of the REMAINING cookies, and 1/4 of 20 is 5. There are 3/4 left, or 15 cookies. I hope this helps!
3 0
3 years ago
Read 2 more answers
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