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snow_lady [41]
3 years ago
13

Pls helps fast the test is due soon!

Mathematics
1 answer:
gogolik [260]3 years ago
5 0

Answer:

C. 20

Step-by-step explanation:

p -4 = 16

p -4 + 4 = 16 + 4

p = 20

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A box contains blue and red pens. 2/5 of the pens are red. What is the ratio of blue to red pens?
Slav-nsk [51]

Answer:

3:2

Step-by-step explanation:

\frac{5}{5}  -  \frac{2}{5}  =  \frac{3}{5}

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D.(2,-3)

Step-by-step explanation:

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the area of a parallelogram shape land is on the square and length of its two adjacent sides are 25 m and 17 M find its diagonal
Alex787 [66]

Step-by-step explanation:

Draw diagonal AC

The triangle ABC has sides 17 and 25

Say AB is 17, BC is 25

Draw altitude on side BC from A , say h

h = 17 sin B

Area = 25*17 sin B = 408

sin B = 24/25

In ∆ ABC

Cos B = +- 7/25

= 625 + 289 — b^2 / 2*25*17

b^2 = 914 — 14*17 = 676

b = 26

h = 17*24/25 = 408/25 = 16.32

Draw the second diagonal BD

In ∆ BCD, draw altitude from D, say DE =h

BD^2 = h^2 + {(25 + sqrt (289 -h^2) }^2

BD^2 = 16.32^2 + (25 + 4.76)^2

= 885.6576 + 266.3424

BD = √ 1152 = 33.94 m

6 0
2 years ago
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