Risa is preparing a short oral presentation about singer, songwriter, and American icon Bob Dylan and the cultural impact of his music. Which multimedia sources should she include in her presentation? Check all that apply.A) a podcast in which Dylan’s life and work are discussed

B) an audio clip of one of Dylan’s most influential songs

C) a recording of Dylan’s most influential album

D) a photograph of Dylan performing at a concert

E) an article about Dylan’s influence on his fans

Answers

Answer 1

Answer:

Pretty sure this isn't math.

I'd skip A -- it's Risa's presentation, not some podcasters'

B. An audio clip. Of course this should be included. I'd go with "Like a Rolling Stone."

C. An entire album is 45 minutes or so, too long for a short oral presentation. Skip the recording but some full size album covers containing actual vinyl records would be a nice touch.

D. Sure, photographs would work nicely.

E. Risa can cite any articles she used to prepare, but a full article has a lot of words and doesn't make sense as part as a short presentation. Maybe some slides with quotes from some articles would be more appropriate.

Answer: B, D

Answer 2

Answer:

Answer:

B and D

Step-by-step explanation:

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A square field had 3 m added to its length ad 2 m added to its width. The field then had an area of 90 m squared. Find the length of a side of the original field.

Answers

Answer:

The length of a side of the original field = 7 m.

Step-by-step explanation:

Here, the initial field is in form of a square.

Let us assume the side of the original square field = k meters

Now, the new length of the field = ( k + 3) m

The new width of the field = ( k + 2) m

So, the new field is now a rectangle with area = 90 sq. m

AREA OF A RECTANGLE = LENGTH x WIDTH

Here, the area of the new field = New length x new width

= ( k + 3) x ( k + 2)

$90 = ( k + 3) * ( k + 2)\n\implies k^2 + 2k + 3k + 6 = 90\nor, k^2 + 5 k - 84 = 0\n\implies k^2 + 12k - 7k -84 = 0\nor, k (k+12) -7(k+12) = 0\n\implies (k+12)(k-7) = 0$

⇒ either (k +12) = 0 ⇒ k = -12

or, ( k-7) = 0 ⇒ k = 7

But, here k = SIDE OF A FIELD, and it CANNOT be negative.

⇒ k = 7

Hence, the length of a side of the original field = 7 m.

Final answer:

To find the length of a side of the original field, you can solve the equation for the area of the expanded field.

Explanation:

To find the length of a side of the original field, we need to solve the equation for the area of the expanded field. Let's assume the original length of the square field is x meters. After adding 3 meters to its length and 2 meters to its width, the new length becomes (x+3) meters and the new width becomes (x+2) meters. The area of the expanded field is (x+3)(x+2) square meters, and it is given that this area is equal to 90 square meters. So, we have the equation (x+3)(x+2) = 90.

Next, we can solve this quadratic equation for x by factoring or using the quadratic formula. Once we find the value of x, we will have the length of a side of the original field.