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s2008m [1.1K]
3 years ago
13

91.55

Mathematics
1 answer:
cricket20 [7]3 years ago
4 0

Answer:

the answer is 3x2-10x+6=0

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How many moles are in 4.23 x 1024 formula<br> units of NaCl
Rashid [163]

Answer:

mol Fe3O4 6.022 x 1023 formula units Fe3O4 = 1.20 x 1024 formula units Fe3O4. 1 mol ... a-How many moles of sodium chloride does the can of salt contain?

Step-by-step explanation:

4 0
3 years ago
Find vector c if c=a+b (view image)<br> A. 7,6<br> B. -7,2<br> C. 0,-5<br> D. -5, 0
o-na [289]

Answer:

\vec c=

Option B

Step-by-step explanation:

<u>Sum of vectors in</u> \mathbb{R}^2

Given two vectors \vec a= and \vec b=. The sum of both vectors is:

\vec a+\vec b =

The vectors in the figure are

\vec a=

\vec b=

The sum is

\vec c=\vec a+\vec b =

\vec c=

Option B

8 0
3 years ago
"Five times the difference of twice a number and three,
Gala2k [10]

Answer:

4

Step-by-step explanation:

5(2x-3)-(x+8) = 13

10x-15-x-8 = 13

9x = 36

x = 4

7 0
3 years ago
The Cool Company determines that the supply function for its basic air conditioning unit is S(p) = 40 + 0.008p3 and that its dem
myrzilka [38]

We are given the functions:

<span>S (p) = 40 + 0.008 p^3                                     ---> 1</span>

<span>D (p) = 200 – 0.16 p^2                                     ---> 2</span>

 

T o find for the price in which the price of supply equals demand, all we have to do is to equate the two equations, equation 1 and 2, and calculate for the value of p, therefore:

S (p) = D (p)

40 + 0.008 p^3 = 200 – 0.16 p^2

0.008 p^3 + 0.16 p^2 = 160

p^3 + 20 p^2 = 20,000

p^3 + 20 p^2 – 20,000 = 0

Calculating for the roots using the calculator gives us:

p = 21.86, -20.93±21.84i

 

Since price cannot be imaginary therefore:

p = 21.86

3 0
3 years ago
System of equation by using substitution <br> 3=y+3x<br> -x+3y=29
Marianna [84]

Answer:

x=-2

y=9

Step-by-step explanation:

3=y+3x ---- A

-x+3y=29 ----B

step 1. rearrange equation A, so you have the "y" variable on one side

3=y+3x

-3x     -3x

3-3x=y

y=3-3x ---- C

step 2. Substitute equation C into equation B in place of "y"

-x+3(3-3x)=29 ---foil

-x+9-9x=29 -- collect like terms

-10x+9=29

       -9     -9

   -10x=20

      ÷-10     ÷-10

         x=-2

Step 3. Substitute x=-2 into equation C to find y

y=3-3(-2)

y=3+6

y=9

Check you answer by subsituting x=-2 and y=9 back into equation A and B

5 0
2 years ago
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