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Maurinko [17]
3 years ago
13

Find the direction to the nearest degree for the vector a=<-8,4>

Mathematics
1 answer:
siniylev [52]3 years ago
6 0

Answer &  Explanation:

To find the direction cosines of the vector a is need to divided the corresponding coordinate of vector by the length of the vector. The coordinates of the unit vector is equal to its direction cosines. Property of direction cosines. The sum of the squares of the direction cosines is equal to one.

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Help now i have 20 mins!!!!!!!!!!!
IgorLugansk [536]

Answer:

Hope this solution helps you

7 0
4 years ago
Sarah uses 9.1 pints of blue paint and white paint to paint her bedroom walls. 4 5 of this amount is blue paint, and the rest is
bonufazy [111]

Answer:Amount of white  paint used by Sarah =1.82 pints

Step-by-step explanation:

Amount of  blue paint and white paint to paint her bedroom walls.=9.1 pints

Amount of  blue paint used =4/5 x 9.1=7.28 pints

Amount of white  paint used=Amount of  blue paint and white paint to paint her bedroom walls -Amount of  blue paint used

=9.1-7.28=1.82 pints

4 0
3 years ago
At a summer camp, there are 40 boys out of 70 campers. What is this ratio written as a fraction in simplest form?
madam [21]

Answer:

40:70 becomes 20:35 which becomes 4: 7.

The answer is 4:7

Step-by-step explanation:

7 0
3 years ago
I need to figure out if I'm doing this correctly
kogti [31]

To prove that triangles TRS and SUT are congruent we can follow these statements:

1.- SR is perpendicular to RT: Given

2.-TU is perpendicular to US: Given

3.-Angle STR is congruent with angle TSU: Given.

4.-Reflexive property over ST: ST is congruent with itself (ST = ST)

From here, we can see that both triangles TRS and SUT have one angle of 90 degrees, another angle that they both have, and also they share one side (ST) ,then:

5.- By the ASA postulate (angle side angle), triangles TRS and SUT are congruent

5 0
1 year ago
What is 23 inches in centimetres?
Anettt [7]

Answer: 58.42

Formula: Multiply the length value by 2.54

23×2.54 =58.42

12 Inches = 30.48 Centimetres

7 0
3 years ago
Read 2 more answers
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