2 years ago

Can someone actually help me w this ?

Mathematics

1 answer:

Kay [80]2 years ago

8 0

Answer:

the first 1

Step-by-step explanation:

You might be interested in

A carton of 24 bottles of sports drink costs $16. How many bottles of sports drink can you get

MrRa [10]

Answer:

Step-by-step explanation:

24 bottles = 16 dollars!

? bottles = 12 dollars

Note:

In these type of Questions, find out any dollars you could get with 1 bottle

or in simple terms, (first find the unit Rate)

1 bottle = 1.5 dollars

? bottles = 12 Dollars?

12/1.5

= 8

<h2>I hope that helps! </h2><h3>Have a wonderful day! </h3>

8 0

2 years ago

The line l passes through the point P = (1,-1,1) and has direction vector d = [2,3,1]. Determine whether l and the plane 4x-y+5z

suter [353]

Hello :
the normal vector of the plane is : d' = [4,-1,5]...(vector perpendicular to the plane)<span>
d </span><span>⊥ d' because : (4)(2)+(-1)(3)+(5)(1)=0
</span>the line is perpendicular to the plane .

3 0

2 years ago

Prove that sin20sin40sin60sin80=3/16

never [62]

We'll use the following properties of sine and cosine to prove this:

$sin(a)\cdot sin(b) = \frac12(cos(a-b) - cos(a+b))$

$cos(a)\cdot cos(b) = \frac12(cos(a+b) + cos(a-b))$

$cos(180+a) = cos(180-a)$

Then it's just a matter of filling it in...

sin20sin40 * sin60sin80 = 1/2(cos20 - cos60) * 1/2 (cos20 - cos140) =

1/8( cos40 + 1 - cos160 - cos120 - cos40 - cos80 + cos80 + cos200) =

1/8(1 - cos160 - cos120 + cos200) =

1/8(1 - cos160 - cos120 + cos160) =

1/8(1 - cos120 ) = 1/8( 1 + 1/2 ) = 3/16

5 0

2 years ago

HELP ME PLZ AS SOON AS POSIBLE<br> IS THIS RIGHT

Dmitrij [34]

YES IT IS RIGHT.YOU ARE RIGHT

5 0

2 years ago

Read 2 more answers

Problem

gregori [183]

Answer:

62.5%

Step-by-step explanation:

150/240

Divide top and bottom by 10

15/24

Divide by 3

5/8

.625

Multiply by 100%

62.5%

6 0

2 years ago