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IgorC [24]
3 years ago
15

A group of rectangular prisms is shown.

Mathematics
1 answer:
scoray [572]3 years ago
8 0

Answer:

D, E and F

calculating the volume of regular bodies like prims works by multiplication alone.

you need some addition for surface area and for more complicated bodies that when the volume can't be calculated in one step

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I dont understand and this is very urgent so can someone help me out please?
wariber [46]

Answer:

Please Find the solution below

Step-by-step explanation:

Let us say the two equations are

x+y=5            --------------(A)

x-y=1              -------------(B)

Let us solve them for x and y by adding them

2x=6

x=3

Hence from (A)

3+y=5

y=2

Hence our solution is

x=3, y=2

Adding same number to equation (A) say 2 we get

x+y+2=5+2

x+y=5+2-2

x+y=5

Hence equation remains the same while adding same number to each side.

Same thing happens if we add same number to equation (B)

Hence we draw the conclusion that the solution remains the same if same number is added to each side of the original equation.

6 0
3 years ago
Integral of cosecx dx =log|tanx/2| show that.​
Pie

ANSWER:

Let t = logtan[x/2]

⇒dt = 1/ tan[x/2] * sec² x/2 × ½ dx

⇒dt = 1/2 cos² x/2 × cot x/2dx

⇒dt = 1/2 * 1/ cos² x/2 × cosx/2 / sin x/2 dx

⇒dt = 1/2 cosx/2 / sin x/2 dx

⇒dt = 1/sinxdx

⇒dt = cosecxdx

Putting it in the integration we get,

∫cosecx / log tan(x/2)dx

= ∫dt/t

= log∣t∣+c

= log∣logtan x/2∣+c where t = logtan x/2

7 0
3 years ago
A farmer has 5 times as many cows as horses.
Assoli18 [71]

Answer:

The correct answer is !40 cows and 28 Horses

Step-by-step explanation:

h+5h=168

6h=168

h=168/6

h=28 horses.

5*28=140 cows.

Proof:

28=140=168

168=168

7 0
3 years ago
Which inequality is equivalent to this one? y-85-2 y-8+82-2+8 oy- 8+8 ​
vladimir2022 [97]

Answer:

The answer is the forth one , Y-8+2⩽-2+2

5 0
3 years ago
A car traveled 240 miles in 3 hours. At this rate, how many miles will the car travel in 1/2 hour?
Levart [38]

The car will travel eighty miles in 1/2 hour

4 0
2 years ago
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