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4 years ago

How do you solve R= us for u

1 answer:

6 0

The answer is: " u = R/s " .
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Given: R = us ; Solve for "u" ;

Divide each side of the equation by "s" to isolate "u" on one side of the equation; and to solve for "u" ;

R/s = [us] / s ;

R/s = u ;

↔ u = R/s .
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What is 9.8 divided by 7

chubhunter [2.5K]

$\frac{9.8}{7}$ : 1.4

9.8 ÷ 7 = 1.4

So, the answer to your question is 1.4.

3 0

3 years ago

Max ran 5 miles on Thursday. One mile is equal to 5,280 feet. Which proportion can be used to determine how many feet, x, Max ra

Scorpion4ik [409]

Answer:

1 mi/5280 ft = 5 mi/x ft

Step-by-step explanation:

1 mi = 5280 ft

This is the first fraction:

1 mi/5280 ft

The second fraction:

5 mi/x ft

If the problem asked specifically for the value of variable x, you would multiply 5 miles by 5280 feet to find it.

The problem only asks for the set up of the proportion though so:

1 mi/5280 ft = 5 mi/x ft

5 0

3 years ago

the first term of a geometric sequence is 8000 and the fifth term is 500. Determine the common ratio and the sum of the first ni

solong [7]

Answer:

The common ratio = 1/2

The sum of 9 terms of GP is 15,968.75

Step-by-step explanation:

Here, in the given GP:

Firs Term a = 8000, Fifth term a(5) = 500

Let Common Ratio = r

Now, by the general term of GP:

$a_n = a \times (r)^{n-1}$

For, n = 5 $a_5 = a \times (r)^{5-1}$

or, $500 = 8000 \times (r)^{4}\\\implies (r)^{4} = \frac{500}{8000} = \frac{1}{16} = \frac{1}{(2)^4} \\\implies r= \frac{1}{2}$

Hence in the given GP, a = 8000 and r = 1/2

Now, in a GP sum of n terms is $s_n = \frac{a(1-r^n)}{1-r}$

So, for n = 9, $s_9 = \frac{8000(1- (\frac{1}{2}) ^9)}{1-\frac{1}{2} } = \frac{8000(1- 0.001953)}{0.5 }\\= \frac{8000 \times (0.9980)}{0.5} = 15,968.75$

So,the sum of 9 terms of GP is 15,968.75.

6 0

3 years ago

What’s the correct answer for this?

Savatey [412]

Answer:

Step-by-step explanation:

Measure of arcURN = 270°

In radians:

270° = 270π/180

270° = 3π/2

Now

Area of sector = 1/2r²∅

= 1/2(10)²(3π/2)

= 50(3π/2)

= 75π

3 0

3 years ago

Determine if the sequence below is arithmetic or geometric and determine the

Amanda [17]

Answer:

Step-by-step explanation:

Each term in the sequence is 4 less than the previous term. That indicates an arithmetic sequence, which has the form a(n) = a(1) + d(n -1), where d is the common difference. Here the common difference is -4, and so the appropriate sequence is

a(n) = 14 - 4(n - 1)

6 0

3 years ago