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3 years ago

How do you solve 7n-2=6n-2n

1 answer:

7 0

First combine like terms:
6n-2n = 4n
7n-2=4n
subtract 7n from both sides
7n-2=4n
-7n -7n
-2=-3n
divide -2 on both sides.
n=1.5

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Simplify the square root of 5 times the cube root of 5.

mihalych1998 [28]

Answer:

Option 3 - five to the two thirds power

Step-by-step explanation:

Given : Expression 'the square root of 5 times the cube root of 5'.

To find : Simplify the expression ?

Solution :

Writing expression in numeric form,

The cube root of 5 means $\sqrt[3]{5}$

The square root of 5 times the cube root of 5 means $\sqrt{5\sqrt[3]{5}}$

Now, simplify the expression

$\sqrt{5\sqrt[3]{5}}=\sqrt{5\times (5)^{\frac{1}{3}}}$

$\sqrt{5\sqrt[3]{5}}=\sqrt{(5)^{1+\frac{1}{3}}}$

$\sqrt{5\sqrt[3]{5}}=\sqrt{(5)^{\frac{4}{3}}}$

$\sqrt{5\sqrt[3]{5}}=((5)^{\frac{4}{3}})^{\frac{1}{2}}$

$\sqrt{5\sqrt[3]{5}}=(5)^{\frac{4}{3}\times \frac{1}{2}}$

$\sqrt{5\sqrt[3]{5}}=(5)^{\frac{2}{3}}$

The expression is five to the two thirds power.

Therefore, Option 3 is correct.

3 0

3 years ago

Read 2 more answers

PLEASEEEE PLEASEEEEEEEEE HELPPPPPPPPPP<br> how do i solve this equation?

Stells [14]

Answer:

360

Step-by-step explanation:

using the definition

n $P_{r}$ = $\frac{n!}{(n-r)!}$

where n! = n(n - 1)(n - 2)..... × 3 × 2 × 1

then

6 $P_{4}$

= $\frac{6!}{(6-4)!}$

= $\frac{6!}{2!}$

= $\frac{6(5)(4)(3(2)(1)}{2(1)}$ ← cancel 2(1) on numerator / denominator

= 6 × 5 × 4 × 3

= 360

7 0

2 years ago

PLEASE HELP!!!!! I DON'T UNDERSTAND!!

Roman55 [17]

Answer: Pool Size

(in feet) 3.5 ft

Avg Depth 4 ft

Avg Depth 4.5 ft

Avg Depth 5 ft

Avg Depth

12x24 7,600 8,600 9,700 10,800

14x28 10,300 11,800 13,200 14,700

15x30 11,800 13,500 15,200 16,900

16x32 13,400 15,400 17,300 19,200

18x36 17,000 19,400 21,900 24,300

19x38 19,000 21,700 24,400 27,100

20x40 21,000 24,000 27,000 30,000

22x44 25,400 29,000 32,700 36,300

25x45 29,531 33,750 37,968 42,187

25x50 32,800 37,500 42,200 46,900

30x50 39,375 45,000 50,525 56,250

Step-by-step explanation:I made this chart for you so you can know actually how to multiply the width of the pool.

6 0

3 years ago

A regression analysis between sales (y in $1000) and advertising (x.in dollars) resulted in the following equation: ỹ= 30,000 +

Dafna11 [192]

Answer:

Correct answer is option d. increase of $1 in advertising is associated with an increase of $4000 in sales.

Step-by-step explanation:

Given the equation of regression analysis is given as:

$y= 30,000 + 4x$

where $x$ is the cost on advertising in Dollars.

and $y$ is the sales in Thousand Dollars.

To find:

The correct increase in sales when there is increase in the advertising cost.

Solution:

Suppose there is an increase of $\$1$ in the advertising cost.

Let the initial cost be $x$ then the cost will be $(x+1)$ .

Initial sales

$y= 30,000 + 4x$ ....... (1)

After increase of $1 in advertising cost, final cost:

$y'= 30,000 + 4(x+1)\\\Rightarrow y' = 30,000+4x+4\\\Rightarrow y' = 30,004+4x ..... (2)$

Subtracting (2) from (1) to find the increase in the sales:

$y'-y=30004+4x-30000-4x = 4$

The units of sales is Thousand Dollars ($1000).

So, increase in sales = $4 \times1000 = \bold{\$4000}$

So, correct answer is:

d. increase of $1 in advertising is associated with an increase of $4000 in sales.

7 0

3 years ago

Which is the best estimate for the sum<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B2%7D%7B9%7D%20%20%2B%20%20%5Cfrac%7B10%

NikAS [45]

Answer:

87992

Step-by-step explanation:

673923 7938363 8383heie884

7 0

3 years ago