4 years ago

Find the area of the shape shown below.3.512

Mathematics

1 answer:

snow_lady [41]4 years ago

4 0

All you have to do is multiply the 3 numbers together. 3.5x1x2. Your answer is 7

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Determine which expressions are equivalent to 8x + 1 by selecting Yes or No. A 14x + 8 – 6x – 7 Yes No B 8(x + 1) Yes No C 4(x +

valina [46]

$14x+8-6x-7$

$14x-6x+8-7$

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3 years ago

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Step-by-step explanation:

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Molly is converting 2 yards to millimeters. will the number of millimeters be fewer than or greater than 2?

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Step-by-step explanation:

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In the expansion (ax+by)^7, the coefficients of the first two terms are 128 and -224, respectively. Find the values of a and b

madam [21]

Answer:

a = 2, b = 3.5

Step-by-step explanation:

Expanding $(ax+by)^7$ using Binomial expansion, we have that:

$(ax+by)^7$ =

$(ax)^7(by)^0 + (ax)^6(by)^1 + (ax)^5(by)^2 + (ax)^4(by)^3 + (ax)^3(by)^4 + (ax)^2(by)^5 + (ax)^1(by)^6 + (ax)^0(by)^7$

$= (a)^7(x)^7+ (a)^6(x)^6(b)(y) + (a)^5(x)^5(b)^2(y)^2 + (a)^4(x)^4(b)^3(y)^3 + (a)^3(x)^3(b)^4(y)^4 + (a)^2(x)^2(b)^5(y)^5 + (a)(x)(b)^6(y)^6 + (b)^7(y)^7\\\\\\= (a)^7(x)^7+ (a)^6(b)(x)^6(y) + (a)^5(b)^2(x)^5(y)^2 + (a)^4(b)^3(x)^4(y)^3 + (a)^3(b)^4(x)^3(y)^4 + (a)^2(b)^5(x)^2(y)^5 + (a)(b)^6(x)(y)^6 + (b)^7(y)^7$