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Varvara68 [4.7K]
3 years ago
14

use the substitution method to solve the system of equations. choose the correct ordered pair. y=3x+2 y=x+12

Mathematics
2 answers:
Paraphin [41]3 years ago
8 0
<h2>Answer: (5,17)  APEX</h2>

Still correct answeron apex as of 4/29/19.

faltersainse [42]3 years ago
4 0
5,17 is the answer :)
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There goes my hopes for Virtuoso rank....
Tpy6a [65]
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y = (x - 9)(x + 19)

x - 9= 0 x + 19 = 0
x = 9 x = -19

Answer B covers all requirements... the factored form is
y= (x + 19)(x - 9)
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3 years ago
17. If a + b = c, which of the following statements is true?
Scilla [17]

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c: c-a = b

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3 years ago
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If angle X is an acute angle with tan X = 8/7, what is the value of sec X?
iren [92.7K]

Answer: \frac{\sqrt{113}}{7}

Step-by-step explanation:

As X is an acute angle, all 6 trigonometric functions with an argument of X are positive.

Using the identity 1+\tan^{2} X=\sec^{2} X,

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5 0
1 year ago
Find the values of the unknown constants for the identities
ankoles [38]

Answer:

a = 1 and b = - 10

Step-by-step explanation:

Expand the right side of the identity

x(ax² - 3x + b) - 3(ax² - 3x + b)

= ax³ - 3x² + bx - 3ax² + 9x - 3b

= ax³ - x²(3 + 3a) + x(b + 9) - 3b

Equate the coefficients of like terms on both sides of the identity

x³ terms → ax³ with x³ ⇒ a = 1

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3 years ago
Can someone help me with this one
HACTEHA [7]
X = 21 + 34
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