Evaluate 6y + x5 When x = -3, y = -5 please help <33 current failing:(

Mathematics

2 answers:

Radda [10]3 years ago

8 0

Answer:

-35

Step-by-step explanation:

if you take 6 x -5 ( y ) then -3 x 5 ( x ) then add them together then you get -35.

Andrew [12]3 years ago

4 0

Answer:

Step-by-step explanation:

Since you are failing, i will not give you the answer directly so you can learn, and not just copy the answer down. First, think about what the variable means. They have an open spot in the equation and they give you what to fill in. since x=-3, multiply 5 by -3. You do this because in the equation it says x5 which is equal to x times 5. Then substitute the y, or -5 to have 6(-5)+(-3)5

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Let v1=(3,5) and v2=(-4,7) Compute the unit vectors in the direction of |v1| and |v2|?

AleksandrR [38]

By definition, the unit vector of v = (a,b) is
$\hat{v} = \frac{\vec{v}}{|v|}$

Therefore,
The unit vector of v₁ = (3,5) in the direction of |v₁| s
(3,5)/√[3² + 5²]
= (3,5)/√34

The unit vector of v₂ in the direction of |v₂| is
(-4,7)/√[(-4)² + 7²]
= (-4,7)/√65

Answer:
The unit vector of v₁ in the direction of |v₁} is $( \frac{3}{\sqrt{34}} , \frac{5}{\sqrt{34}} )$
The unit vector of v₂ in the directin of |v₂| is
$( \frac{-4}{\sqrt{65}} , \frac{7}{\sqrt{65}} )$

6 0

3 years ago

Solve 7w = 56, where w is a real number.

steposvetlana [31]

Answer:

w = 8

Step-by-step explanation:

7w = 56

Divide both sides by 7

w = 56/7

w = 8

4 0