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babunello [35]
3 years ago
11

Marcy played the piano for 45 minutes.She stopped playing at 4:15 P.M.At what time did she start playing the piano

Mathematics
1 answer:
musickatia [10]3 years ago
3 0
15-45=-30
60-30=30
so the answer is 3:30
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Let W be the subspace of R5 spanned by the vectors w1, w2, w3, w4, w5, where
Gwar [14]
To find W⊥, you can use the Gram-Schmidt process using the usual inner-product and the given 5 independent set of vectors. 

<span>Define projection of v on u as </span>
<span>p(u,v)=u*(u.v)/(u.u) </span>
<span>we need to proceed and determine u1...u5 as: </span>
<span>u1=w1 </span>
<span>u2=w2-p(u1,w2) </span>
<span>u3=w3-p(u1,w3)-p(u2,w3) </span>
<span>u4=w4-p(u1,w4)-p(u2,w4)-p(u3,w4) </span>
<span>u5=w5-p(u4,w5)-p(u2,w5)-p(u3,w5)-p(u4,w5) </span>

<span>so that u1...u5 will be the new basis of an orthogonal set of inner space. </span>

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7 0
4 years ago
it takes Sarah 50 minutes to walk to her friends house 1 3/4 miles away. What is her walking pace in miles per hour?
RideAnS [48]
50 minutes= 5/6 hr

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3 0
3 years ago
Read 2 more answers
An angle measures 19.4° more than the measure of its complementary angle. What is the measure of each angle?
8090 [49]

Answer:

37.8+52.2=90

Step-by-step explanation: x + (x + 14.4) = 90

2x + 14.4 = 90

2x = 75.6

x = 37.8  (one angle)

And (x + 14.4) = 52.2 (other angle).

7 0
3 years ago
Pls help! i’ll give brainly to the right answer
prohojiy [21]

Answer:

2.22222222

Step-by-step explanation:

8 0
3 years ago
5
liubo4ka [24]

Answer:

51.4

Step-by-step explanation:

when you have a regular polygon, all sides are equal and all angles are equal. Regular polygons automatically equal 360.

A heptagon has 7 sides so divide 360 by 7.

you get 51.4, that's your answer.

5 0
3 years ago
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