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Paraphin [41]
3 years ago
14

Jeanne makes hair bows to sell at the craft fair. Each bow requires 1.5 feet of ribbon. At the fabric store, ribbon is sold by t

he foot. If Jeanne wants to make 84 bows, how many feet of ribbon must she buy
Mathematics
1 answer:
Dovator [93]3 years ago
6 0

Answer:

126

Step-by-step explanation:

That might be the answer sorry if im wrong

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Whats the distance between (-1,4) and (1,-5)
Bess [88]

Answer:

11

Step-by-step explanation:

8 0
3 years ago
If α and β are the zeros of the quadratic polynomial f(x) = 3x2–4x + 5, find a polynomialwhose zeros are 2α + 3β and 3α + 2β.
Lelechka [254]

Answer:

\boxed{\sf \ \ \ 3x^2-20x+37\ \ \ }

Step-by-step explanation:

Hello,

a and b are the zeros, we can say that

f(x)=3(x^2-\dfrac{4}{3}x+\dfrac{5}{3}) = 3(x-a)(x-b)=3(x-(a+b)x+ab)

So we can say that

a+b=\dfrac{4}{3}\\ab=\dfrac{5}{3}

Now, we are looking for a polynomial where zeros are 2a+3b and 3a+2b

for instance we can write

(x-2a-3b)(x-3a-2b)=x^2-(2a+3b+3a+2b)x+(2a+3b)(3a+2b)\\= x^2-5(a+b)x+6a^2+6b^2+9ab+4ab

and we can notice that

a^2+b^2=(a+b)^2-2ab so

(x-2a-3b)(x-3a-2b)=x^2-5(a+b)x+6[(a+b)2-2ab]+13ab\\= x^2-5(a+b)x+6(a+b)^2+ab

it comes

x^2-5*\dfrac{4}{3}x+6(\dfrac{4}{3})^2+\dfrac{5}{3}

multiply by 3

3x^2-20x+2*16+5=3x^2-20x+37

4 0
3 years ago
Use the distributive property to rewrite the expression 4(3.5 + 2.3).
Fed [463]

Step-by-step explanation:

4x 3.5 + 4x 2.3

14 + 9.2

= 23.2

6 0
3 years ago
Read 2 more answers
What is 2878 divided by 55
likoan [24]

Answer:

52.3272727...

the 27 at the end is repeating

8 0
3 years ago
Read 2 more answers
Can someone help me please
sergeinik [125]
82 + 0.6h

82 + 0.6(5)= 85
4 0
3 years ago
Read 2 more answers
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