All categories

4 years ago

( 8k + 9) - (6k + 5)

Mathematics

2 answers:

Katena32 [7]4 years ago

3 0

Answer:

The expression is 2k + 4.

Step-by-step explanation:

You have to collect like-terms :

(8k + 9) - (6k + 5)

= 8k + 9 - 6k - 5

= 2k + 4

HACTEHA [7]4 years ago

3 0

2k+4 is the answer to ur question

You might be interested in

I need help with this question

Ghella [55]

Answer:

2.72 / 16 x 28 = $4.76

Step-by-step explanation:

Since they give you $2.72 for 16 ounces you put in:

2.72 / 16 x 28 = $___

Then you just solve it to get $4.76:

2.72 / 16 = 0.17

0.17 x 28 = 4.76

6 0

2 years ago

Find one terminating and one repeating decimal between -1/2 and -1/3

Romashka-Z-Leto [24]

-0.4742 and -0.488888888

Correct me if I am wrong.

7 0

3 years ago

Which of the following best describes the Aztec Empire before it was conquered? A. a small, complex civilization B. a small, pri

vladimir1956 [14]

The Aztec Empire was considered as A. a small ,complex civilization.<span />

8 0

4 years ago

Read 2 more answers

This robotic arm is made up of two cylinders with equal volume and two triangular prism hands. The volume of each hand is

BaLLatris [955]

Answer:

$\frac{r}{3\pi h+r}$

Step-by-step explanation:

Since the height isn't given, we assume it to be "h" (of cylinders). And the answer will be in terms of "r" and "h".

The area of 1 arm is given, so the area of 2 arms would be:

$A_{arm}=2*(\frac{1}{2}r*\frac{1}{3}r*2r)=\frac{2r^3}{3}$

Now, area of 2 cylinders would be the formula:

$A_{cyl}=2*(\pi r^2 h)=2\pi r^2 h$

So, total area is A_arm PLUS A_cyl. The fractional area the arms are would be gotten by taking expression A_arm divided by A_total.

Shown below:

$\frac{A_{arm}}{A_{total}}=\frac{\frac{2r^3}{3}}{2\pi r^2 h + \frac{2r^3}{3}}$

We simplify further:

$\frac{\frac{2r^3}{3}}{2\pi r^2 h + \frac{2r^3}{3}}\\=\frac{\frac{2r^3}{3}}{2r^2(\pi h + \frac{r}{3})}\\=\frac{r}{3(\pi h + \frac{r}{3})}\\=\frac{r}{3\pi h+r}$

THis is the answer.

6 0

3 years ago

Read 2 more answers

Helpppppppppppppppppp<br> Pppppo

pantera1 [17]

Answer:

(2 * L)+(2 * W)

Step-by-step explanation:

4 0

3 years ago