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saw5 [17]
2 years ago
8

What is the midpoint m given q(-2, -4) and R(6, 10)

Mathematics
1 answer:
xxMikexx [17]2 years ago
8 0

Answer:

(2,3)

Step-by-step explanation:

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A student said that the surface area of the figure below was 57.4 square centimeters. Is the student correct? Explain.
FrozenT [24]

Answer:

  no

Step-by-step explanation:

The surface area is the sum of the areas of the faces.

There are 4 faces that are 5 cm wide. Their respective heights (from front, over the top) are ...

  1 cm, 2.5 cm, 2 cm, 2.3 cm

for a total height of 7.8 cm. Thus, those 4 faces have a total area of ...

  (5 cm)(7.8 cm) = 39.0 cm^2

__

The two trapezoidal faces each have bases of length 1 and 2 cm, and a "height" of 2.3 cm. Together, their areas are ...

  A = 2×(1/2)(b1 +b2)h = (b1 +b2)h

  A = (1 cm +2 cm)(2.3 cm) = 6.9 cm^2

__

The surface area of the entire trapezoidal prism is then ...

  total area = base area + lateral area = 6.9 cm^2 +39 cm^2

  total area = 45.9 cm^2

The student's answer of 57.4 cm^2 is not correct. (We don't know where that calculation came from.)

3 0
3 years ago
Solve z-28/ -25 = 18
vodomira [7]
-z-28/-25=18

First, multiply both sides by -25

z-28=-450

Now just add 28 to both sides

z=-422
4 0
2 years ago
What is the y intercept of 5
lina2011 [118]
The answer is 6 btw it’s wrong!
5 0
3 years ago
Read 2 more answers
Write a rational number in fraction form that is equivalent to 2.5 (repeating)
Shtirlitz [24]

Answer:

That would be 2/4 equivalent to 1/2 (2.5)

Step-by-step explanation:

Sorry if I'm wrong

3 0
2 years ago
Read 2 more answers
I am stuck please help!
olga2289 [7]

Answer:

5x - 63 = 6

Step-by-step explanation:

Okay, first step, let's get all fractions having a common denominator, to do this, multiply 2/3 by 3 to get 6/9. Now, we have 5/9x-7=6/9. To make these into whole numbers, we can multiply the whole equation by the denominator (9). 5/9x multiplied by 9 is 5. 7 multiplied by 9 is 63. 6/9 multiplied by 9 is 6. Now we have 5x-63=6. If I were to simplify the equation, it would require decimals, so I'll leave it at this, but the equation simplified is x=13.8.

7 0
2 years ago
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