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aliina [53]
2 years ago
8

Could u guys help me plz?

Mathematics
1 answer:
Harman [31]2 years ago
7 0

9514 1404 393

Answer:

  • 84.7 units²
  • 118.125 in³

Step-by-step explanation:

The surface area of the triangular prism is the sum of its base areas and the lateral area. The total area of the two triangular bases is ...

  A = bh = 7(6.1) = 42.7 . . . square units

The lateral area is the product of the perimeter of the base and the length of the prism. The height given for the prism is consistent with it having triangular bases that are equilateral triangles. That is, the unmarked dimension is likely 7 units, so the perimeter is ...

  P = 7+7+7 = 21

and the lateral surface area is ...

  LA = PL = 21·2 = 42

Then the total surface area of the prism is ...

   total area = A + LA = 42.7 +42 = 84.7 . . . square units

__

The volume of a rectangular prism is given by ...

  V = Bh

where B is the area of the base, and h is the height. Your prism has a volume of ...

  V = (26.25 in²)(4.5 in) = 118.125 in³

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Rectangular prism...becuase it is in rectangular shape..no matter how you cut it..it will give u a rectangle
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3 years ago
What is 20+50+9-6>79-1 must show step by step
Harman [31]

Answer:

73>78

Step-by-step explanation: 20 +50 + 9= 79 -6 = 73

6 0
3 years ago
Read 2 more answers
Some body can help me with a geometric mean maze
Mars2501 [29]

Answer:

See explanation

Step-by-step explanation:

Theorem 1: The length of the altitude to the hypotenuse of a right triangle is the geometric mean of the lengths of the segments of the hypotenuse.

Theorem 2: The length of each leg of a right triangle is the geometric mean of the length of the hypotenuse and the length of the segment of the hypotenuse adjacent to that leg.

1. Start point: By the 1st theorem,

x^2=25\cdot (49-25)=25\cdot 24=5^2\cdot 2^2\cdot 6\Rightarrow x=5\cdot 2\cdot \sqrt{6}=10\sqrt{6}.

2. South-East point from the Start: By the 2nd theorem,

x^2=40\cdot (40+5)=4\cdot 5\cdot 2\cdot 9\cdot 5\Rightarrow x=2\cdot 5\cdot 3\cdot \sqrt{2}=30\sqrt{2}.

3. West point from the previous: By the 2nd theorem,

x^2=(32-20)\cdot 32=4\cdot 3\cdot 16\cdot 2\Rightarrow x=2\cdot 4\cdot \sqrt{6}=8\sqrt{6}.

4. West point from the previous: By the 1st theorem,

9^2=x\cdot 15\Rightarrow x=\dfrac{81}{15}=\dfrac{27}{5}=5.4.

5. West point from the previous: By the 2nd theorem,

10^2=8\cdot (8+x)\Rightarrow 8+x=12.5,\ x=4.5.

6. North point from the previous: By the 1st theorem,

x^2=48\cdot 6=6\cdot 4\cdot 2\cdot 6\Rightarrow x=6\cdot 2\cdot \sqrt{2}=12\sqrt{2}.

7. East point from the previous: By the 2nd theorem,

x^2=22.5\cdot 30=225\cdot 3\Rightarrow x=15\sqrt{3}.

8. North point from the previous: By the 1st theorem,

x^2=7.5\cdot 36=270\Rightarrow x=3\sqrt{30}.

8. West point from the previous: By the 2nd theorem,

x^2=12.5\cdot (12.5+13.5)=12.5\cdot 26=25\cdot 13\Rightarrow x=5\sqrt{13}.

9. North point from the previous: By the 1st theorem,

12^2=x\cdot 30\Rightarrow x=\dfrac{144}{30}=4.8.

101. East point from the previous: By the 1st theorem,

6^2=1.6\cdot (x-1.6)\Rightarrow x-1.6=22.5,\ x=24.1.

11. East point from the previous: By the 2nd theorem,

20^2=32\cdot (32-x)\Rightarrow 32-x=12.5,\ x=19.5.

12. South-east point from the previous: By the 2nd theorem,

18^2=x\cdot 21.6\Rightarrow x=15.

13. North point=The end.

6 0
3 years ago
What is the solution set to the equation (2x−4)(4x−5)=0?
STALIN [3.7K]
Answer: A. (5/4, 2)
Explanation:
2x-4=0
4x-5=0

2x=4
4x=5

x=2
x= 5/4
3 0
3 years ago
The thing is in the picture​
vitfil [10]
The answer should be C 20
6 0
2 years ago
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