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Ugo [173]
3 years ago
14

Jamal is shopping with a gift card he received for his birthday. After he purchases two T- shirts the gift card balance has drop

ped from $50 top $20.02. What is the unit rate of the cost per T- shirt?
Mathematics
1 answer:
Ede4ka [16]3 years ago
3 0

Answer:

14.99

Step-by-step explanation:

20.02=50-2t

20.02-50= -2t

-29.98= -2t


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Answer:

a) d = 36 ft. ( using Pithagoras´theorem )

b) d = 36 ft  ( Using ( function sin ) trigonometry

Step-by-step explanation:

a) Using Pythagoras´Theorem:

Diagonal (d) is the hypothenuse of a right triangle of side 25 feet, and according to Pythagoras´Theorem in a right triangle.

d²  =  a²  +  b²  

In this particular case  a =  b  =  25 feet then

d² =  (25)²  +  ( 25)²

d  = √ 2 * (25)²

d  = √2   * 25

d  =  1,414*25

d  =  35,35

d = 36 ft.

b) Using trigonometry:

We know that sin 45° = cos 45° =  √2 / 2

In a right triangle

sin α  =  opposite side / hypothenuse (d)

sin 45°  =  √2 / 2   =  25/ d

√2 *d  =  2* 25

d  =  50/√2

d  =  50 / 1,414

d  =  35,36

d = 36 ft

6 0
3 years ago
Unit 6. 14) Please help. Consider a standard deck of 52 playing cards with 4 suits.
aliya0001 [1]

Answer:

The best answer for this is D.) 4/13

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Jack got the expression 7x+1 and then wrote his answer as 1+7x . is his answer an equivalent expression? how do you know?
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Aleks04 [339]

Answer:

x = 13     smaller integer

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Step-by-step explanation:

x = the smaller integer

x + 2 = the next integer          

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7x = 61 + 2x +4

5x = 61 + 4

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x = 13     smaller integer

x + 2 = 15  the other integer

8 0
3 years ago
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