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Alexandra [31]
2 years ago
6

Help ASAP ASAP ASAPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Mathematics
1 answer:
victus00 [196]2 years ago
4 0

Answer:

a =3/4

Step-by-step explanation:

2/3 times 3/4 = 1/2

1/2 (or 3/6) - 1/6 = 2/6

2/6 simplifies to 1/3

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A triangular prism and two nets are shown:
leonid [27]
The net for a triangular prism consists of 
2 identical triangles, here all nets have sides 5,12, and 13.
3 rectangles, all with a common dimension: the height H=14 of the prism.

Each of the 3 rectangles should have dimensions
H=14 plus one of the following:
each of 5, 12, 13 corresponding to one side of the base (triangle).

So the dimensions of the rectangles are
5x14, 12x14, 13x14

And dimensions of the triangles are
5,12 and 13.

The total surface area is therefore
(5+12+13)*14 + 2*(5*12/2)
=420+60
=480.

There is only one net that satisfies this condition.

8 0
3 years ago
One canned juice is 15% orange juice another 10% orange juice. How many liters of each should be mixed together in order to get
Delicious77 [7]
<span>Equation:
0.15x + 0.10(5-x) = 0.11*5
---
Multiply thru by 100:
15x + 10*5 - 10x = 11*5

---
5x = 5
x = 1 liter (amt. 15% oj needed)
----
5-x = 4 liters (amt of 10% oj needed)
======</span>
3 0
3 years ago
Based on her recipe, Elena knows that 5 servings of granola have 1,750 calories.
klemol [59]

Answer:

1,750 ÷5= 350

Step-by-step explanation:

there are 350 calories in each serving 1,750 is the total

4 0
2 years ago
Read 2 more answers
The product of -3 and -7 is positive.<br><br><br> True False
dmitriy555 [2]
True!! If you multiply -3 x -7 you get 21!!
3 0
3 years ago
Read 2 more answers
From the quadratic equation 3x² + X - 5 = 0, find alpha square plus beta square​
timama [110]

Answer:

  α² +β² = 3 4/9

Step-by-step explanation:

Assuming α and β are solutions to the equation, it can be factored as ...

  (x -α)(x -β) = 0

Expanding this, we get ...

  x² -(α +β)x +αβ = 0

Dividing the original equation by 3, we find ...

  x² +(1/3)x -5/3 ≡ x² -(α+β)x +αβ   ⇒   (α+β) = -1/3, αβ = -5/3

We know that the square (α+β)² can be expanded to ...

  (α +β)² = α² +β² +2αβ

  α² +β² = (α +β)² -2αβ . . . . . . subtract 2αβ

Substituting the values for (α+β) and αβ, we find the desired expression is ...

  α² +β² = (-1/3)² -2(-5/3) = 1/9 +10/3 = 31/9

  α² +β² = 3 4/9

4 0
2 years ago
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