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andrezito [222]
3 years ago
8

Does anyone know how to do this ?

Mathematics
1 answer:
goldenfox [79]3 years ago
6 0

Answer: D) 32

Step-by-step explanation:

The area of a parallelogram equals its base times its height. Substitute the base and area into this formula to solve for the height:

A=bh

40=(5)(h)

h=8

If ABCD is a parallelogram, opposite sides are parallel, so AB is parallel to DC. If AB is parallel to DC, EB is parallel to DC. Since EB is parallel to DC, quadrilateral EBCD has at least one pair of parallel sides, making it a trapezoid. The area of a trapezoid is equal to \frac{h(b_{1}+b_{2})  }{2} where h is the height, b_{1} is one base, and b_{2} is the other base. Plug the necessary values into the formula:

A=\frac{h(b_{1}+b_{2})  }{2}

b_{1} =AB-AE\\DC=AB\\b_{1} =DC-AE\\b_{1} =5-2\\b_{1} =3

b_{2} =5

h=8

A=\frac{8(3+5)}{2}

A=32

The answer is D) 32.

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lisov135 [29]

Answer:

Uhh? You can't factor this!

Step-by-step explanation:

So.. we see that the last term, the constant, (the +5) is positive, which means the two terms (the a and b on the (x+a)(x+b) must be either both positive or both negative).

We try positive, and we end up with

(x+1)(x+5)

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which is not what we want!

We try negative, and we end up with

(x-1)(x-5)

x^2 -x -5x +5

x^2 -6x +5

which is also not what we want!

This isn't factorable!

You can always complete the square or utilize the quadratic equation, but you can't factor it.

3 0
3 years ago
Evaluate.<br><br> 2 • {[5 • (60 – 14 ÷ 7)] + 25} • 5
boyakko [2]

Answer:

3,150.

Step-by-step explanation:

  1. 2 · {[ 5 · ( 60 - 2 )] + 25 } · 5.
  2. 2 · {[ 5 · ( 58 )] + 25 } · 5.
  3. 2 · { 290 + 25 } · 5.
  4. 2 · { 315 } · 5.
  5. 630 · 5.
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These are all of the steps to completely and correctly solve this question.

Hope this helps.

Kyle.

5 0
3 years ago
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Firlakuza [10]
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Actually, the answer to this question depends on whether the clause is reversed or not.

Since we are not told whether the the clause is reversed or not. It is safe to assume that it was retained (i.e. not reversed). So the answer to this question is FALSE because if one takes a true "if-then" statement, inserted a 'not' in each clause, and retained the clauses, the new statement would NOT be true.

On the contrary, if the clause is reversed, the answer would be TRUE, because if one takes a true "if-then" statement, inserted a not in each clause, and reversed the clauses, the new statement would also be true.
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mars1129 [50]

Answer:

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Step-by-step explanation:

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4 0
2 years ago
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ololo11 [35]

Answer:

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Step-by-step explanation:

8 0
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