3 years ago

B) Factorise 4(x + y) + (x + y)? Terms & Conditions

Mathematics

1 answer:

tekilochka [14]3 years ago

3 0

Answer:

5(x+y)

Step-by-step explanation:

4×x+4×y+x+y

4x+4y+x+y

5x+5y

5(x+y)

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alexira [117]

Scalene triangles. I think

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3 years ago

Find the possible value or values of y in the quadratic equation 4 – 4y – y 2 = 0. A. y = –3, y = –1 B. y = 2 C. y = –2 + 2√ 2,

xz_007 [3.2K]

4 - 4y - y² = 0
-y² - 4y + 4 = 0
y = -(-4) ± √((-4)² - 4(4)(-1))
2(-1)
y = 4 ± √(16 + 16)
-2
y = 4 ± √(32)
-2
y = 4 ± 4√(2)
-2
y = 4 + 4√(2) or y = 4 - 4√(2)
-2 -2
y = -2 - 2√(2) or y = -2 + 2√(2)

The answer is C.

8 0

3 years ago

Allan has a piece of string that is 5.4 meters in length. He needs some smaller pieces that are 0.6 meters in length. How many s

eduard

<h3>Option D</h3><h3>9 smaller pieces of string can be cut from Allan's string</h3>

<em><u>Solution:</u></em>

Given that,

Allan has a piece of string that is 5.4 meters in length

He needs some smaller pieces that are 0.6 meters in length

Therefore,

Total length of string = 5.4 meter

Length needed = 0.6 meter

Thus,

$\text{ Number of pieces } = \frac{ \text{ Total length of string }}{ \text{ Length needed }}\\\\\text{ Number of pieces } = \frac{5.4}{0.6}\\\\\text{ Number of pieces } = 9$