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3 years ago

Please help me asap

Mathematics

1 answer:

Darya [45]3 years ago

8 0

L = rc
= 26.9 * 9*3.14 / 5
= 152.04 to nearest 1/100

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The office manager of First Tech Support borrowed $25,000 to purchase new computers for employees. The bank charges 6 percent in

Travka [436]

Given:

Amount borrowed (P)= $25000

Rate of interest (r)= 6%

Time (t)= 4 years.

To find:

The total interest the company pay in all.

Solution:

We know that,

$A=P(1+r)^t$

where, A is amount, P is principal, r is rate of interest and t is time period.

$A=25000(1+\dfrac{6}{100})^4$

$A=25000(1.06)^4$

$A=25000(1.26247696)$

$A=31561.924
$

Now,

$I=A-P$

$I=31561.924-25000$

$I=6561.924$

Therefore, the total interest is $6561.924.

7 0

3 years ago

Damien Smart is trying to decide whether to lease or purchase a new car costing $18,000. If he leases, he’ll have to pay a $600

gizmo_the_mogwai [7]

$the\ lease:\\\\ \$450\cdot36(payments)- \$600(security)=\$16,200-\$600=\$15,600 \\\\ the\ purchase:\\\\down\ payments+payments+sales\ tax- residual\ value= \\\\=\$2,400+\$515\cdot36+\$1,080-\$6,500=\$2.400+\$18,540-\$5420=\\\\=\$15,520\\\\\$15,520$

6 0

3 years ago

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An item is regularly priced at 25. It is on sale for 80% off the regular price. What is the sale price?

Burka [1]

answer:

sale price: $5

explanation:

total price is always 100%

sale price is 80% off,

sale price: 100% - 80% = 20%

solve:

→ 20% * $25

→ $5

7 0

2 years ago

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Please help with this AP Calculus question !

melomori [17]

Answer:

C. $\displaystyle \frac{cos(x)}{x} - ln(x)sin(x)$

General Formulas and Concepts:

Calculus

Differentiation

Derivatives
Derivative Notation

Derivative Rule [Product Rule]: $\displaystyle \frac{d}{dx} [f(x)g(x)]=f'(x)g(x) + g'(x)f(x)$

Trig Derivatives

Logarithmic Derivatives

Step-by-step explanation:

Step 1: Define

Identify

$\displaystyle f(x) = ln(x)cos(x)$

Step 2: Differentiate

Derivative Rule [Product Rule]: $\displaystyle f'(x) = \frac{d}{dx}[ln(x)]cos(x) + ln(x)\frac{d}{dx}[cos(x)]$
Logarithmic Derivative: $\displaystyle f'(x) = \frac{1}{x}cos(x) + ln(x)\frac{d}{dx}[cos(x)]$
Trig Derivative: $\displaystyle f'(x) = \frac{1}{x}cos(x) + ln(x)[-sin(x)]$
Simplify: $\displaystyle f'(x) = \frac{cos(x)}{x} - ln(x)sin(x)$