4 years ago

Write an expression that sho how to use the halving and doubling strategy to find 28×50

1 answer:

swat324 years ago

8 0

28x50
14x100
7x200=14,000

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alisha [4.7K]

Pretty sure it’s 28 try that

3 0

3 years ago

galben [10]

Answer:

a=16

Step-by-step explanation:

The distributive property states that

$a(b+c)=ab+ac$

Therefore using the distributive property

$(y - 4x)(y ^ 2 + 4y + 16)$

= $y(y ^ 2 + 4y + 16) - 4x(y ^ 2 + 4y + 16)$

Expanding the brackets

$y ^ 3 + 4y^2 + 16y - 4xy ^ 2 - 16xy - 64x$ .....(i)

Comparing with the form

$y ^ 3 + 4y ^ 2 + ay - 4x y ^ 2 - axy - 64x$ -----(ii)

The coefficient of y in (i) is 16 which corresponds to a and the likewise the coefficient of xy

Therefore, a=16

5 0

3 years ago

Sladkaya [172]

Answer:

the additional cost to produce each phone

8 0

3 years ago

san4es73 [151]

Slope = -3/2, b = 3
so
y = -3/2x + 3
x-intercept when y = 0
so
-3/2x + 3 = 0
-3/2x = -3
x = -3 *(-2/3)
x = 2

answer
<span>C.2</span>

5 0

4 years ago

melomori [17]

Step-by-step explanation:

here ! I used the formula area = length × width

and just some algrbric expressions solving

4 0

2 years ago