2.

Mathematics

1 answer:

9966 [12]3 years ago

6 0

Answer:

(b) -m, m + 3

Step-by-step explanation:

x² − 3x − m(m + 3) = 0

x² − 3x = m(m + 3)

x² − 3x + 9/4 = m(m + 3) + 9/4

(x − 3/2)² = m(m + 3) + 9/4

(x − 3/2)² = m² + 3m + 9/4

(x − 3/2)² = (m + 3/2)²

x − 3/2 = ±(m + 3/2)

x − 3/2 = m + 3/2, -m − 3/2

x = m + 3, -m

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A farmer builds a rectangular pen with a perimeter of 116-feet. If the length is 5 feet more than the width, what is the width

zavuch27 [327]

Answer:

The length would be 31.5ft and the width would be 26.5ft

Step-by-step explanation:

For the purpose of this, we'll set the width as x. We can then define the length as x + 5 since we know it is 5 ft longer than the width. Now we can use those along with the perimeter formula to solve for the width.

P = 2l + 2w

116 = 2(x + 5) + 2(x)

116 = 2x + 10 + 2x

116 = 4x + 10

106 = 4x

26.5 = x

Now since we know that the width is 26.5ft, we can add 5ft to it to get the length, which would be 31.5ft.

5 0

3 years ago

13+49 is the same as 12 + blank

hram777 [196]

13+49=62.

12+50=62

the answer is 50.

7 0

3 years ago

Read 2 more answers

Pls quick plsssssssss

eduard

Answer:

${ \rm{perimeter = side + side + side}} \\ \\ { \rm{perimeter = 3 \frac{1}{2} + 4 \frac{2}{3} + 5 \frac{1}{4} }} \\ \\ { \rm{perimeter = 13 \frac{5}{12} \: cm}}$