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3 years ago

Solve K/2 + 5 - 2k = 6k

Mathematics

1 answer:

pantera1 [17]3 years ago

4 0

Answer:

k = 2/3 is the answer!

Step-by-step explanation:

can you mark me branliest please

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According to the graph what is the value of x when g(x)=4

Serhud [2]

Answer:

x=2

Step-by-step explanation:

we know that

according to the graph

when g(x)=4

the value of x=2

see the attached figure to better understand the problem

7 0

3 years ago

Which equation is represented by the table? x y (x, y) 0 2 (0, 2) 1 –1 (1, –1) 2 –4 (2, –4) A. y = –2x B. y = x – 1 C. y = 2x D.

SashulF [63]

Answer: [D]: y = -3x + 2 .
__________________________________________________

4 0

3 years ago

The approximate molar concentration of several chemicals are given. Find the pH of each use the calculator and round to the near

mojhsa [17]

Answer:

$pH = 13$ --- Oven Cleaner

$pH = 6.2$ --- Water

$pH =7.4$ --- Blood

$pH = 2.2$ --- Vinegar

Step-by-step explanation:

The given molar concentration are:[Missing from the question]

Oven Cleaner: [h+] = $10^{-13}$

Water: [h+] = $0.0000007$

Blood: [h+] = $0.00000004$

Vinegar: [h+] = $0.0063$

Required

Determine the pH

pH is calculated using:

$pH = -\log(h+)$

So, we have:

Oven Cleaner:

$pH = -\log(10^{-13})$

Using a calculator, we have:

$pH = 13$

Water:

$pH = -\log(0.0000007)$

Using a calculator, we have:

$pH = -1*-6.2$

$pH = 6.2$

Blood:

$pH = -\log(0.00000004)$

Using a calculator, we have:

$pH = -1 * -7.4$

$pH =7.4$

Vinegar:

$pH = -\log(0.0063 )$

Using a calculator, we have:

$pH = -1 * -2.2$

$pH = 2.2$

4 0

3 years ago

Line segment AB has endpoints A(1, 2) and B(5, 3). Find the coordinates of the point that divides the line segment directed from

Tanzania [10]

Answer:

The coordinates of the point that divides the line segment directed from A to B in the ratio of 1:3 is P ( 2 , 2.25 ).

Step-by-step explanation:

Given:

Let Point P ( x , y ) divides Segment Am in the ratio 1 : 3 = m : n (say)

point A( x₁ , y₁) ≡ ( 1 , 2)

point B( x₂ , y₂) ≡ (5 , 3)

To Find:

point P( x , y) ≡ ?

Solution:

IF a Point P divides Segment AB internally in the ratio m : n, then the Coordinates of Point P is given by Section Formula as

$x=\frac{(mx_{2} +nx_{1}) }{(m+n)}\\ \\and\\\\y=\frac{(my_{2} +ny_{1}) }{(m+n)}\\\\$

Substituting the values we get

$x=\frac{(1\times 5 +3\times 1) }{(1+3)}\\ \\and\\\\y=\frac{(1\times 3 +3\times 2) }{(1+3)}\\\\\therefore x = \frac{8}{4}=2 \\\\and\\\therefore y = \frac{9}{4}=2.25 \\\\\\\therefore P(x,y) = (2 , 2.25)$

The coordinates of the point that divides the line segment directed from A to B in the ratio of 1:3 is P ( 2 , 2.25 ).

7 0

4 years ago

Read 2 more answers

Multiply. (−3x+4)(2x−1)

BigorU [14]

Answer:

$\large\boxed{(-3x+4)(2x-1)=-6x^2+11x-4}$

Step-by-step explanation:

Use FOIL:

(a + b)(c + d) = ac + ad + bc + bd

$(-3x+4)(2x-1)=(-3x)(2x)+(-3x)(-1)+(4)(2x)+(4)(-1)\\\\=-6x^2+3x+8x-4$

combine like terms

$=-6x^2+(3x+8x)-4=-6x^2+11x-4$

6 0

3 years ago

Read 2 more answers