3 years ago

Solve 7x - 12 = k for x

Mathematics

1 answer:

shtirl [24]3 years ago

5 0

Answer:

x = 1/7(k+12)

Step-by-step explanation:

7x - 12 = k

Add 12 to each side

7x - 12+12 = k+12

7x = k+12

Divide each side by 7

7x/7 = (k+12)/7

x = 1/7(k+12)

You might be interested in

Use the arc length formula to find the length of the curve y = 4x − 5, −1 ≤ x ≤ 3. Check your answer by noting that the curve is

Reptile [31]

Answer:

$4\sqrt{17}$

Step-by-step explanation:

Let's find the answer by using the arc length formula which is:

$\int\limits^a_b {\sqrt{1+(\frac{dy}{dx})^{2} } } \, dx$

First, let's find dy/dx which is:

y=4x-5

y'=4*(1)-0

y'=4, now let's use the formula:

$\int\limits^3_{-1} {\sqrt{1+4^{2}} } \, dx=\sqrt{17} *(3-(-1))=4\sqrt{17}$

Now, using the distance formula we have:

$d=\sqrt{(x2-x1)^{2} +(y2-y1)^{2} }$

$y(-1)=4*(-1)-5=-9 \\y(3)=4*(3)-5=7$

So we have two points (-1, -9) and (3, 7) so:

$d=\sqrt{(3-(-1))^{2} +(7-(-9))^{2} }=4\sqrt{17}$

Notice both equations gave the same length $4\sqrt{17}$ .

5 0

3 years ago

2. Casey says, "I pick a number.

victus00 [196]

Step-by-step explanation:

7,14,21,28,35,42,49,56,63,70

18,36,54,72,90,108,126,144,162,180

4 0

3 years ago

50 POINTS !! PLEASE HELP AND EXPLAIN !! ILL GIVE BRAINLIEST TO THE RIGHT ANSWERS.

allochka39001 [22]

I need the point my point is -

4 0

3 years ago

Read 2 more answers

Find four consecutive odd integers such that 5 times the sum of the first and the third is 15 more than 5 times the fourth.

Dvinal [7]

Answer:

The required numbers are :

$\boxed{ \boxed{ 5,7,9 \: and \: 11}}$

7 0

2 years ago

M + m = 36 I need help to show the work please

wariber [46]

Answer:

m + m = 36

18 + 18 = 36

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers