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mrs_skeptik [129]
3 years ago
10

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.

Mathematics
1 answer:
AnnZ [28]3 years ago
7 0

Answer:

I am stuck on this problem too. Is it on eacxt path.

Step-by-step explanation:

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Divide 29 into two parts so that the sun of the squares of the parts is 425.Find the value of each Part.
Taya2010 [7]

Answer:

13 and 16

Step-by-step explanation:

let the 2 parts be x and y, then

x + y = 29 → (1) and

x² + y² = 425 → (2)

From (1) → x = 29 - y → (3)

substitute x = 29 - y into (2)

(29 - y)² + y² = 425 ( expand factor )

841 - 58y + y² + y² = 425 ( rearrange into standard form )

2y² - 58y + 416 = 0 ← in standard quadratic form

divide all terms by 2

y² - 29y + 208 = 0

Consider the factors of 208 which sum to - 29

These are - 13 and - 16, hence

(y - 13)(y - 16) = 0

equate each factor to zero and solve for y

y - 13 = 0 ⇒ y = 13

y - 16 = 0 ⇒ y = 16

substitute these values into (3)

x = 29 - 13 = 16 and x = 29 - 16 = 13

The 2 parts are 13 and 16


4 0
3 years ago
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Help me please need help​
IrinaK [193]

Step-by-step explanation:

.......................

7 0
2 years ago
What is the sales tax on the chair shown if the tax rate is 5.75% ( the chairs price is $178.90)
timurjin [86]
If I remember how to do this right I’m pretty sure you just divid by 178.90 by 5.75 wich gives you 31.11 for the tax rate
7 0
3 years ago
If the zeroes of a quadratic function, G, are 4 and -2, what is the equation of the axis of symmetry of G
MAVERICK [17]

9514 1404 393

Answer:

  x = 1

Step-by-step explanation:

The axis of symmetry is the vertical line halfway between the zeros.

  x = (4 -2)/2

  x = 1 . . . equation of axis of symmetry

4 0
3 years ago
What is the surface area of this wooden board​
Sindrei [870]

Answer:

The answer is C. 736 in.

Step-by-step explanation:

A=2(wl+hl+hw)=2·(4·60+2·60+2·4)=736

5 0
3 years ago
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