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kykrilka [37]
3 years ago
10

Answer Question number 5 Plzzzz

Mathematics
2 answers:
inessss [21]3 years ago
7 0

its k=2

One solution was found :

                  k = 2

Step by step solution :

Step  1  :

           1

Simplify   —

           3

Equation at the end of step  1  :

       2          1      

 ((k • —) +  (k • —)) -  2  = 0

       3          3      

Step  2  :

           2

Simplify   —

           3

Equation at the end of step  2  :

       2     k    

 ((k • —) +  —) -  2  = 0

       3     3    

Step  3  :

Adding fractions which have a common denominator :

    Adding fractions which have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

2k + k     3k

——————  =  ——

  3        3

Reducing to Lowest Terms :

   The above result can still be reduced :

    3k    

    —— = k

    3      

Equation at the end of step  3  :

 k -  2  = 0

Step  4  :

Equation at the end of step  4  :

 k - 2  = 0

Step  5  :

Solving a Single Variable Equation :

  Solve  :    k-2 = 0

Add  2  to both sides of the equation :

                     k = 2

One solution was found :

                  k = 2

Softa [21]3 years ago
6 0

Step-by-step explanation:

Consider x⅓ =a

then the following expression can be written as

a²+a-2

a²+2a-a-2

a(a+2)-1(a+2)

(a+2)(a-1)

a= -2 or, a= 1

Putting the value of a

x⅓ = -2 and, x⅓ =1

You might be interested in
3. 2x – y = -7<br> 4x – y = -4<br> A) (-1.5, 4)<br> B) (1.5, 10)<br> C) (4, -1.5)<br> D) (-1.5, -2)
marishachu [46]
Multiply first equaton by -1 and add to first

-2x+y=7
<u>4x-y=-4 +</u>
2x+0y=3

2x=3
divide 2
x=3/2

sub
2x-y=-7
2(3/2)-y=-7
3-y=-7
minus 3
-y=-10
negative 1 times both sides
y=10

(3/2,10)
(1.5,10)

B is ansre
7 0
3 years ago
What is the justification for each step in solving the inequality?
alekssr [168]
HELLO  ANNA!!

Given inequality
=> −2(x+1)≥3x+8
=>
- 2x - 2 \geqslant 3x + 8 \\ \\ add \: 2 \: in \: both \: sides \\ \\ - 2x \geqslant 3x + 10 \\ \\ subtract \: with \: - 3x \: in \: both \: sides \: \\ \\ - 5x \geqslant 10 \\

now multiply with - on both sides.

As we know now sign will change
=> 5x >_ -10

Now divide by 5 on both sides
=> x >_ -2
HOPE IT HELPED YOU.
4 0
3 years ago
Read 2 more answers
2. A line passes through points (-1,-2) and (1,4). What is the equation of the line? TI​
Simora [160]
Slope = "rise over run" the difference in y values divided by the difference in x values
= 6/-3 = -2 = m. It's negative because as x increases, y decreases

plug that into the point slope formula, with either point. generally use the most simple point
y-h= m(x-k) where m= -2 and (k,h) = (2,-2)

y+2 = -2(x-2)

simply if you want

Y = -2x +4 -2 = -2x +2

or

2x +y = 2
5 0
3 years ago
The amount that two groups of students spent on snacks in one day is shown in the dot plots below. Which statements about the me
RUDIKE [14]

Answer:

  • The mean for Group A is less than the mean for Group B.
  • The median for Group A is less than the median for Group B.
  • The mode for Group A is less than the mode for Group B.

Step-by-step explanation:

First, we can find the measures of center for each group.

<u>Group A</u>

Mode: 1

Median: (1 + 2) / 2 = 3 / 2 = 1.5

Mean: (1 * 5 + 2 * 4 + 3) / 10 = (5 + 8 + 3) / 10 = 16 / 10 = 1.6

<u>Group B</u>

Mode: 3

Median: 92 + 3) / 2 = 5 / 2 = 2.5

Mean: (1 * 3 + 2 * 2 + 3 * 4 + 5) / 10 = (3 + 4 + 12 + 5) / 10 = 24 / 10 = 2.4

From here, we can see that...

  • The mean for Group A is less than the mean for Group B.
  • The median for Group A is less than the median for Group B.
  • The mode for Group A is less than the mode for Group B.

Hope this helps!

8 0
3 years ago
Help?? ayuda??4 2 + 6 ÷ 2
babymother [125]
42 + 6 divided by 2 equals 24
3 0
2 years ago
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