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aleksandrvk [35]
3 years ago
10

Josie wants to hang a “Happy Birthday” banner across the diagonal of a rectangular opening that has a width of 9 feet and a heig

ht of 12 feet.
How many inches long should the banner be?
Mathematics
1 answer:
Wewaii [24]3 years ago
4 0
If the answer is 29 then the correct formation of the equivalent answer would be 245
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Step-by-step explanation:

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3 years ago
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Find the roots of the equation x^2+2x+5=0
stiv31 [10]

Answer:

x = - 1 ± 2i

Step-by-step explanation:

we can use the discriminant b² - 4ac to determine the nature of the roots

• If b² - 4ac > , roots are real and distinct

• If b² - 4ac = 0, roots are real and equal

• If b² - ac < 0, roots are not real

for x² + 2x + 5 = 0

with a = 1, b = 2 and c = 5, then

b² - 4ac = 2² - (4 × 1 × 5 ) = 4 - 20 = - 16

since b² - 4ac < 0 there are 2 complex roots

using the quadratic formula to calculate the roots

x = ( - 2 ± \sqrt{-16} ) / 2

  = (- 2 ± 4i ) / 2 = - 1 ± 2i


7 0
3 years ago
Help me plzzzzzzzzzzzz
Ad libitum [116K]

Looking at the triangle we see the angles:

58, x

We also see a right angle, therefore you now have:

90, 58, 0

All three angles of a triangle should have a total of 180 degrees, so we add the known angles and subtract the total from 180.

90 + 58 = 148

180 - 148 = 32

Therefore, x = 32 or C

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3 years ago
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3 years ago
Marcus can choose between a monthly salary of $ 1500 plus 5.5% of sales or $2,400 dollars plus 3% of sales. He expects sales bet
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He should choose the second option because he will be paid more money, with the percentage he expects.

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