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ad-work [718]
3 years ago
7

Please help!

Mathematics
1 answer:
Mariana [72]3 years ago
4 0

Answer:

j = 3 * d

Step-by-step explanation:

the * means multiplication. Or you can write j=3d

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What is the answer to solve -2=4r+s for s
sleet_krkn [62]
The answer is s= -(4r+2)
7 0
3 years ago
Simplify the expression to a + bi form:<br> (11+8i)-(-5+4i)<br><br> PLEASE HELP
WARRIOR [948]
If I’m correct it should be 6+4i good luck
4 0
3 years ago
Read 2 more answers
Mary walks 4 miles north and then turns and walks 5 miles west. How far is she from her original starting point?
dusya [7]
Answer:  6.403 miles; or, write as:  6.403 mi.  .
__________________________________________________
Explanation:
_________________________________________________





                                5
--------------------------------------------
`                             right angle   |_ |
   `          (right triangle )                 |
         `                                               |    4 
             `                                           |
                      `    
       "c"                        `                  \        
 (hypotenuse)                          Starting point
                     
__________________________________________________
Since we have a "right triangle, we solve for "c"; using the 
"Pythagorean theorem" ; 
_______________________________________________________
→  a² + b² = c² ; Solve for "c" ; our answer (in "miles"; or, "mi.") ;
__________________________________________________
Given : a = 4; b = 5 ; 
____________________________
Plug these known values into our equation:
________________________________________
 → 4² + 5² = c² ; 
____________________________
 → 16 + 25 = c² ;  ↔  c² = 16 + 25 ;
______________________________
 → c² = 41 ; 
_______________________________
 → Take the positive square root of each side of the equation (since the side of a "triangle" cannot be "negative"; 
__________________________________
 → √(c²) = √(41) ; 
_____________________________
 → c =  √41 ; Use calculator;
________________________________
 → c =  6.40312423743 ; Round to:  

 → c = 6.403 miles; or, 6.403 mi. 
__________________________________________

 

5 0
3 years ago
Jay has an album that holds 900 photos. Each page of the album holds 9 photos. If 64 % of the album is​ empty, how many pages ar
Butoxors [25]

well 9+10=21

Step-by-step explanation:

5 0
3 years ago
At a manufacturing plant where switches are made, it is a known fact that 2% of all switches are defective. If two switches are
olchik [2.2K]

Answer:

The probability that exactly one switch is good is

P(x) =0.0392

Step-by-step explanation:

The probability that a switch is defective is:

P(D) = \frac{2}{100} =0.02

The probability that a switch is not defective is

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Therefore, if two switches are selected, the probability that exactly 1 is good is:

P(1=1)=P (D) P (D ') + P (D') P (D)

P(x)=(0.02)(0.98) + (0.98)(0.02)

P(x) =0.0392

6 0
3 years ago
Read 2 more answers
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