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TEA [102]
3 years ago
15

Perpendicular lines intersect to form right angles. A.if the lines intersect to form right angles then the lines intersect to fo

rm right angles. B.if the lines are perpendicular then the lines are perpendicular. C. If the lines intersect to form right angles then the lines are perpendicular. D.if the lines are perpendicular then the lines intersect to form right angles.
Mathematics
2 answers:
Brilliant_brown [7]3 years ago
7 0

Answer:

so the answer is always ?

Step-by-step explanation:

if 2 lines intersect to farm a right angle , they are perpendicular ....... I hope that help

Mrrafil [7]3 years ago
5 0
If 2 lines intersect to farm a right angle , they are perpendicular ....... I hope that help
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3 years ago
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Factor the expression given below. Write each factor as a polynomial in
kherson [118]

The factorization of the expression of 43x³ + 216y³ is

(7x + 6y)(49x² - 42xy + 36y²)

Step-by-step explanation:

The sum of two cubes has two factors:

1. The first factor is \sqrt[3]{1st} + \sqrt[3]{2nd}

2. The second factor is ( \sqrt[3]{1st} )² - ( \sqrt[3]{1st} ) ( \sqrt[3]{2nd} ) + ( \sqrt[3]{2nd} )²

Ex: The expression a³ + b³ is the sum of 2 cubes

The factorization of a³ + b³ is (a + b)(a² - ab + b²)

∵ The expression is 343x³ + 216y³

∵ \sqrt[3]{343x^{3}} = 7x

∵ \sqrt[3]{216y^{3}} = 6y

∴ The first factor is (7x + 6y)

∵ (7x)² = 49x²

∵ (7x)(6y) = 42xy

∵ (6y)² = 36y²

∴ The second factor is (49x² - 42xy + 36y²)

∴ The factorization of 43x³ + 216y³ is (7x + 6y)(49x² - 42xy + 36y²)

The factorization of the expression of 43x³ + 216y³ is

(7x + 6y)(49x² - 42xy + 36y²)

Learn more:

You can learn more about factors in brainly.com/question/10771256

#LearnwithBrainly

6 0
3 years ago
Jessica's meal cost $19.64 and Derrick's meal cost $32.40. Derrick pays for both meals, and leave a 15% tip. What is the total c
Nimfa-mama [501]

Answer:

The total cost is $59.85

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6 0
3 years ago
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A 20-foot ramp is used at the loading dock of a factory.lf the base of the ramp is placed 19 feet from the base of the dock,how
Brrunno [24]

Answer:

6.24 feet (to nearest hundredth)

Step-by-step explanation:

Use the Pythagoras Theorem:-

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x^2 = 20^2 - 19^2 =  39

x =  √39

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3 years ago
BRAINLY TO WHOEVER HELPS AND GETS IT RIGHT<br><br> ~no links pls~
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Answer:

the answer is C

Step-by-step explanation:

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