3 years ago

Rewrite without parentheses and simplify (v+4)^2

Mathematics

2 answers:

Rashid [163]3 years ago

6 0

V^2+8v+16

(v+4)(v+4)

Do v*v, 4*4, 4*v, 4*v

Simplify

gayaneshka [121]3 years ago

5 0

$(v+4)^2 \\ \\ v^2 + 2v \times 4 + 4^2 \\ \\ v^2 + 2v \times 4 + 16 \\ \\ v^2 + 8v + 16 \\ \\ Answer: v^2 + 8v + 16$

You might be interested in

for v= 4i - 5j, find unit vector u in the direction of v, and write your answer as a linear combination of the standard unit vec

umka21 [38]

Answer:

a. $u=\frac{4\sqrt{41}i }{41}-\frac{5\sqrt{41}j}{41}$

Step-by-step explanation:

The given vector is v= 4i - 5j

The magnitude of this vector is;

$|v|=\sqrt{(-4)^2+(-5)^2}$

$|v|=\sqrt{16+25}$

$|v|=\sqrt{41}$

The unit vector u in the direction of v is;

$u=\frac{v}{|v|}$

$u=\frac{4i - 5j}{\sqrt{41}}$

$u=\frac{4i }{\sqrt{41}}-\frac{5j}{\sqrt{41}}$

We rationalize to get

$u=\frac{4\sqrt{41}i }{41}-\frac{5\sqrt{41}j}{41}$

4 0

2 years ago

Read 2 more answers

How to solve burger barn has 46 2/3 pounds of ground beef. how many 1/3 pound burgers can be made using all the ground beef?

8_murik_8 [283]

(46 2/3) / (1/3) =
(140/3) / (1/3) =
140/3 * 3/1 =
420/3 =
140 <=== 140 can be made

4 0

3 years ago

Help plz I really need help could you show your work if you do it plz.

Vika [28.1K]

What do you need help with?

7 0

3 years ago

Becky needs to make cookies for a school bake sale. The cookies need to be distributed evenly on 2 or more plates. If each plate

Lelu [443]

Answer:

We can take 2 plates , 3 plates or 6 plates.

Step-by-step explanation:

1 dozen = 12 numbers

Total number of cookies = 42

Each plate has to get atleast 7 cookies ,all the plates should have the same number of cookies and also the number of plates must be greater than or equal to 2.

If we take 2 plates , there can be 21 cookies in each.

If we take 3 plates , there can be 14 cookies in each.

If we take 6 plates , there can be 7 cookies in each.

These are the 3 possible cases.

Since there cannot be broken pieces, no other combination is possible.

7 0

3 years ago

Duncan shares 20 percent of all of his sales commissions with his personal assistant. If Duncan earns x dollars in commissions a

grandymaker [24]

Answer:

it b

Step-by-step explanation:

3 0

2 years ago