PLEASE HELP FAST ITS TIMED! I Will Give Brainlist And Extra Points!

Answer:

69.333 or 208/3

Part (a)

Lets say we had the two general vectors

u = (a,b)

v = (c,d)

The dot product is

u dot v = a*c + b*d

-------------------

Apply that rule to these specific vectors

u = (5, -2)

v = (0, 1)

So we get

u dot v = 5*0 + (-2)*1

u dot v = 0 - 2

u dot v = -2

Therefore,

(u dot v)*w = -2*(-1, -3)

(u dot v)*w = ( -2*(-1), -2(-3) )

(u dot v)*w = (2, 6)

Answer:  (2, 6)

=============================================

Part (b)

u = (5, -2)

5u = 5*(5, -2)

5u = (5*5, 5*(-2))

5u = (25, -10)

5u dot v = (25, -10) dot (0,1)

5u dot v = 25*0 + (-10)*1

5u dot v = 0 - 10

5u dot v = -10

Answer: -10

Answer:

45 miles.

Step-by-step explanation:

Ok, so it goes 1.75 (1 3/4) miles in 2 minutes and 20 seconds, or 140 seconds. Divide 1.75 miles by 140 and you get 0.0125 miles per second, or 0.75 (3/4) miles per minute. Multiply 0.75 by 60 minutes and you get 45 miles.

Answer:

9 power 3 minus 3

so 9 power 0

Answer:

9^2

Step-by-step explanation:

Subtract the bottoms exponent from the top exponent. If you see no exponent there is always a one.

Answer: y=−7

Step-by-step explanation:

Add 55 to both sides. y=−12+5

Simplify  -12+5  to  -7

Do you mean LCM

If you just want to know what is the least common multiple of 10 and 60, it is 60

Answer:

the lowest common factor is 5

Step-by-step explanation

5 can go into both 60 and 10, and thats the lowest that can go into both numbers because 5 times 2 is equal to 10 and 5 times 12 is equal to 60. hope this helps :)

Answer:

3 boys for 6 girls.

Answer- 12 boys for 24 girls

Answer:

[tex]*[/tex] [tex]12[/tex] [tex]*[/tex]

Step-by-step explanation:

[tex]--------------------------------------------[/tex]

[tex]There[/tex]  [tex]are[/tex]  [tex]12[/tex]  [tex]boys[/tex]  [tex]because:[/tex]

[tex]\frac{24}{6}[/tex] = [tex]4[/tex]

[tex]--------------------------------------------[/tex]

[tex]and[/tex] [tex]4\cdot3[/tex] = [tex]12[/tex]

[tex]which[/tex] [tex]equals[/tex] [tex]12[/tex] [tex]boys.[/tex]

[tex]--------------------------------------------[/tex]

Hope this helps! <3

[tex]--------------------------------------------[/tex]

Answer:

C

Step-by-step explanation:

Step 6

Answer:

$108.75

Step-by-step explanation:

math and stuff

Answer:

The laws of multiplication state that when a negative number is multiplied by a positive number, the product will be negative. So, if considering a factor pair of a negative product, one of these factors must be negative and the other factor must be positive.

Answer:

I think its b

Step-by-step explanation:

Answer:

Step-by-step explanation:

X/4 ≥ -8

4 x X/4 ≥ -8 x 4

X ≥ -32

Answer:

x = 6√7

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Trigonometry

Step-by-step explanation:

Step 1: Define

We are given a right triangle. We can use PT to solve the missing length.

Step 2: Identify Variables

Leg a = √27

Leg b = 15

Hypotenuse c = x

Step 3: Solve for x

Answer:

-2g -10

Step-by-step explanation:

On simplifing this expression we get,

-2(g+5)

=> -2g + (-10)

=> -2g - 10

If my answer helped, kindly mark me as the brainliest!!

Thanks!!

Answer:

-2g-10

Step-by-step explanation:

-2(g+5)

Use the distributive property to simplify the equation

(-2*g)+(5*-2)

(-2g)+(-10)

-2g-10

Hope this helps. Have a nice day. May it be filled with joy ad happiness. Please, be safe and wash your hands. Happy Holidays.

Answer:

r=99

Step-by-step explanation:

Answer:

4 Tickets and 5 Snacks

Step-by-step explanation:

Answer:

The family bought 4 tickets and 5 snacks.

Step-by-step explanation:

$12.50 x 4 tickets = 50

$4.75 x 5 snacks = 23.75

$50 + $23.75 = $73.75

Answer:

Dang they deleted my last answer

Step-by-step explanation:

I wonder why people ACTUALLY report stuff like this....

Answer:

thanks

Step-by-step explanation:

Answer:

may it is integer or mines relationship

Answer:

yes

Step-by-step explanation:

For the relation to be a function each value of x must map to exactly one unique value of y.

This is the case here thus the relation is a function

Answer:

The velocity is 17 m/s

Step-by-step explanation:

To find the velocity, we find the first differential of the displacement

That will be

S’(t) = 16t + 1/t

We simply proceed to replace t with 1

That will give;

16(1) + 1/1

= 16 + 1 = 17 m/s

Answer:

v = 13

Step-by-step explanation:

Truly hope I helped fast enough:).

Answer:

X [tex]\geq[/tex] 5 =  [5,∞)

This is the number line:

Answer:

C

Step-by-step explanation:

Answer:

1 Dime

14 Quarters

Step-by-step explanation:

d + q = 15

0.10d + 0.25q = 3.60

d = 15 - q

0.10d + 0.25q = 3.60

0.10(15 - q) + 0.25q = 3.60

1.5 - 0.10q + 0.25q = 3.60

0.15q = 3.60 - 1.5

0.15q = 2.1

0.15q/0.15 = 2.1/0.15

q = 14

d = 15 - q

d = 15 - 14

d = 1

Answer:

f(5) = 3

Step-by-step explanation:

f(x) is the y coordinate at x.

At x = 5, y = 3, so f(5) = 3.

Answer:

36

Step-by-step explanation:

Well duh

You are in kindergarten!

Answer:

A. 2x³ - 1

General Formulas and Concepts:

Algebra I

Step-by-step explanation:

Step 1: Define

f(x) = 2x³ + 3

g(x) = x - 4

Step 2: Find g(f(x))