3 years ago

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Mathematics

1 answer:

ollegr [7]3 years ago

8 0

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"Find the length of AC for which ABCD is a parallelogram.

tresset_1 [31]

AC is the diagonal of parallelogram ABCD.

AE = 4x
EC = x + 3

AE = EC
4x = x + 3
4x - x = 3
3x = 3
3x/3 = 3/3
x = 1

AE + EC = AC
4x + x + 3 = AC
4(1) + 1 + 3 = AC
4 + 1 + 3 = AC
8 = AC

Choice D. 8.

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3 years ago

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Two people (A and B) travel from X and Y along different routes. their journeys each take the same amount of time. a’s route is

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Answer:

a’s average speed is 60km/h

Step-by-step explanation:

x = a’s average speed

60/40 = 90/x

Cross multiplication:

60x = 40x90

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Whats (2^–1)^3 with the same base but one exponent??

STatiana [176]

Step-by-step explanation:

$({2}^{ - 1} )^{3}$

${2}^{ - 3}$

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The Bricely family borrowed $176000 from glen blank several years ago when they bought their co-op for $246,000. The price dropp

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Subject: Finding Range Using a Graph

grigory [225]

Answer:

4.7

Step-by-step explanation:

The red I think is hinting to the x.

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