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Naya [18.7K]
3 years ago
12

Please answer this question now

Mathematics
2 answers:
yaroslaw [1]3 years ago
7 0

Answer:

396 yd^2

Step-by-step explanation:

8X12=96

(96/2)*2=9

10*10=100

100*3=300

300+96=396

Gekata [30.6K]3 years ago
7 0

Answer:

416 yd^2

Step-by-step explanation:

The formula for the surface area of a triangular prism is

A=2\sqrt{\frac{a+b+c}{2}(\frac{a+b+c}{2}-a)(\frac{a+b+c}{2}-b)(\frac{a+b+c}{2}-c)}+(a+b+c)h

where <em>h </em>is the height (10), and <em>a</em>, <em>b</em> and <em>c </em>are the base sides (10, 10, 12).

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Help please I will give pioints
inna [77]

Answer: 0.6 pounds

Step-by-step explanation: 3 divided by 5 = 0.6 pounds

8 0
2 years ago
A sandbox has a perimeter of 21 1/2 feet. If the length is 5 1/4 feet, what is the area of the sand box?
LiRa [457]
The perimeter of a rectangle is twice the sum of length and width, so the sum of length and width is half the perimeter, 10 3/4 ft.

The width will be the difference between this and the length, hence 5 1/2 ft.

The area is the product of length and width.
  A = length×width
  A = (5.25 ft)×(5.5 ft) = 28.875 ft²

The area of the sandbox is 28 7/8 ft².
4 0
3 years ago
What is a 1/4 of ?/100
irakobra [83]
\frac{1}{4}\cdot100=25
......
8 0
3 years ago
Read 2 more answers
-3x+6y= -3 and -5+y=-23
Ira Lisetskai [31]

-5 +y = -23

add 5 to each side

y = -18

-3x+6y = -3

-3x + 6(-18) = -3

-3x -108 = -3

add108 to each side

-3x = 105

divide by -3

x = -35


x=-35

y= -18



5 0
3 years ago
Read 2 more answers
I'm having trouble figuring out what the equation is for the trend line and what the slope is
Talja [164]

Answer:

The equation for the trend line would be y = -1/100x + 25

Step-by-step explanation:

In order to find the trend line, we first need to find the slope. To do so, we need to find two points on the line. The points we'll use are (0, 25) and (2500, 0). Next, we use the slope formula.

m(slope) = (y2 - y1)/(x2 - x1)

m = (0 - 25)/(2500 - 5)

m = -25/2500

m = -1/100

Now that we have this we can use the slope and the intercept in slope intercept form to model the trend line.

y = mx + b

y = -1/100x + 25

3 0
3 years ago
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