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scZoUnD [109]
2 years ago
13

. Use the vectors v = -i +2j and w= -3i + 4j to find 5v + 8w.

Mathematics
1 answer:
Anarel [89]2 years ago
5 0
  • 5v+8w

put values

  • 5(-i+2j)+8(-3i+4j)

Do like you do algebraic addition

  • -5i+10j-24i+32j
  • -5i-24i+10j+32j
  • -29i+42j

Option A

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S_A_V [24]

Answer:

A

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
(Will give Brainliest, these are angle relationships) Please help, and show work, what relationship is it and set up an equation
kozerog [31]
Supplementary angles
x+20+5x+10=180
6x+30=180
6x=150
x=25
7 0
3 years ago
Read 2 more answers
What is the value of 2 3/4 ➗ 3/4​
Ivan

Answer:

3 2/3 is the answer

Step-by-step explanation:

Conversion a mixed number 2 3/

4

to a improper fraction: 2 3/4 = 2 3/

4

= 2 · 4 + 3/

4

= 8 + 3/

4

= 11/

4

To find new numerator:

a) Multiply the whole number 2 by the denominator 4. Whole number 2 equally 2 * 4/

4

= 8/

4

b) Add the answer from previous step 8 to the numerator 3. New numerator is 8 + 3 = 11

c) Write a previous answer (new numerator 11) over the denominator 4.

Two and three quarters is eleven quarters

Divide: 11/

4

: 3/

4

= 11/

4

· 4/

3

= 11 · 4/

4 · 3

= 44/

12

= 4 · 11 /

4 · 3

= 11/

3

Dividing two fractions is the same as multiplying the first fraction by the reciprocal value of the second fraction. The first sub-step is to find the reciprocal (reverse the numerator and denominator, reciprocal of 3/

4

is 4/

3

) of the second fraction. Next, multiply the two numerators. Then, multiply the two denominators. In the next intermediate step , cancel by a common factor of 4 gives 11/

3

.

so you simplify to get 3 2/3

8 0
3 years ago
I need help on finding the next terms on this pls help
Katena32 [7]

Answer: -5, -7, and -9

Step-by-step explanation:

checking the pattern they are subtracting by two by the next term, so subtracting 2 from -3 would be -5 and so on.

4 0
3 years ago
Vicky grew 15 flowers with 3 seed packets. How many seed packets does Vicky need to have a total of 20 flowers in her garden?
asambeis [7]

Answer:

definitely 4

Step-by-step explanation:

15/3 is 5 if u add 4 packets then I should he 20

7 0
3 years ago
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