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yaroslaw [1]
3 years ago
7

Would you rather prove a quadrilateral is a parallelogram by using slopes or lengths?

Mathematics
1 answer:
WITCHER [35]3 years ago
8 0

Answer:

Lengths

Step-by-step explanation:

Its easier to show someone numbers and show them which ides they go on than to graph it especially for people who struggle with graphing.

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For a magic trick , Ashley has a classmate pick one card from a standard deck of cards . what is the probability of Ashley 's cl
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1/4

Step-by-step explanation:

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I believe it is 144 dollars
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Which can be used to expand the expression below?
musickatia [10]
What is the question 
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3 years ago
A grocer wants to mix two kinds of coffee. One kind sells for $0.85 per pound, and the other sells for $2.70
Sedaia [141]

Answer:

x = $0.85 per pound = 19.85 pounds

y = $2.70 per pound = 1.14 pounds

Step-by-step explanation:

Let

x = $0.85 per pound

y = $2.70 per pound

x + y = 21 (1)

0.85x + 2.70y = 19.95 (2)

From (1)

x = 21 - y

Substitute x = 21 - y into (2)

0.85x + 2.70y = 19.95 (2)

0.85(21 - y) + 2.70y = 19.95

17.85 - 0.85y + 2.70y = 19.95

- 0.85y + 2.70y = 19.95 - 17.85

1.85y = 2.1

y = 2.1 / 1.85

y = 1.14

Substitute y = 1.14 into (2)

0.85x + 2.70y = 19.95

0.85x + 2.70(1.14) = 19.95

0.85x + 3.078 = 19.95

0.85x = 19.95 - 3.078

0.85x = 16.872

x = 16.872 / 0.85

x = 19.85

x = $0.85 per pound = 19.85 pounds

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4 0
2 years ago
HELP. WILL GIVE BRAINLIEST, WHEN ANSWERED.
maxonik [38]

Answer:

√89 or 9.43 units is the distance between Sophia's house and library

Step-by-step explanation:

H (1 ,1)  ⇒ House

L(6 , 9) ⇒ Library

Leg₁ = OH = 6 - 1 = 5 units

Leg₂ = OL = 9 - 1 = 8 units

<h3>  Pythagorean theorem;</h3>

            Hypotenuse² = leg₁² + leg₂²

                                   = 5² + 8²

                                    = 25 + 64

                                    = 89

              hypotenuse = √89 units  (radical form)

               hypotenuse = 9.43 units  

3 0
2 years ago
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