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kati45 [8]
3 years ago
9

Lisa solved 448 math problems for homework over 28 days if she solved the same number of problems each day, how many problems di

d she solve per day
Mathematics
1 answer:
SpyIntel [72]3 years ago
7 0

Let P = number of problems solved per day.

P = 448/28

P = 16

Lisa solved 16 problems per day.

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marshall27 [118]

Answer:

( √15 + 8)/7

Step-by-step explanation:

TanA = -√15

.we are to find tan(A-π/4).

In trigonometry

Tan(A-B) = TanA - TanB/1+ tanAtanB

Hence:

tan(A-π/4) = TanA - Tanπ/4/1+ tanAtanπ/4

Substitute tan A value into the formula

tan(A-π/4) = -√15-tanπ/4 / 1+(-√15)(tanπ/4

tan(A-π/4) = -√15-1/1-√15

Rationalize

-√15-1/1-√15 × 1+√15/1+√15

= -√15-√225-1-√15/(1-√225)

= -2√15-15-1/1-15

= -2√15 -16/(-14)

= -2(√15+8)/-14

= √15 + 8/7

Hence the required value is ( √15 + 8)/7

4 0
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Read 2 more answers
Find the area of the shaded region. Round your answer to the nearest hundredth.
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3 years ago
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