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2 years ago

Please help.Find the circumference (to the nearest whole number). Use 3.14 for pi.

Mathematics

1 answer:

saul85 [17]2 years ago

5 0

B. 88in , hopefully that helps you:))

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Plssss help quick i need it for sum important

Vanyuwa [196]

(a) The product of $(2x-4)\ and\ (3x^2-x+4)$ is calculated to be $=6x^3-14x^2+12x-16$

(b)The product of $(2x-4) \ and\ (3x^2-x+4)\$ is not equal to the product of $(4x-2)\ and\ (3x^2-x+4)$

Step-by-step explanation:

(a)

$(2x-4)(3x^2-x+4)\\\\=(2x.3x^2)+(2x.-x)+(2x.4)+(-4.3x^2)+(-4.-x)+(-4.4)\\\\=6x^3-2x^2+8x-12x^2+4x-16\\\\=6x^3-14x^2+12x-16$

$(4x-2)(3x^2-x+4)\\\\=(4x.3x^2)+(4x.-x)+(4x.4)+(-2.3x^2)+(-2.-x)+(-2.4)\\\\=12x^3-4x^2+16x-6x^2+2x-8\\\\=12x^3-10x^2+18x-8$

The product of $(2x-4) \ and\ (3x^2-x+4)\$ is not equal to the product of $(4x-2)\ and\ (3x^2-x+4)$

7 0

2 years ago

Help needed asap please

Alenkasestr [34]

Answer:

I don't understand the language you used

6 0

2 years ago

Read 2 more answers

4^n + 1 , Where n is a natural number , will

antiseptic1488 [7]

Answer:

a) will definitely be an odd number

Step-by-step explanation:

4^n is always even (when you multiply even and even number, the product is always even)

when you add one to even number, the sum is always odd

so 4^n +1 is odd.

5 0

2 years ago

Which matrix represents the system of equations shown below? x = 10 3x-9y = 7

OlgaM077 [116]

Y=4.1 because it if take ten. And multiply it by three then take negative 9Y equals seven and divided by nine gives you 4.1

3 0

2 years ago

A business has a savings account that earns a 3% annual interest rate. At the end of 1996, the business had $4,000 in the accoun

olya-2409 [2.1K]

Answer:

The amount the business initially invested in 1991 is approximately;

A. $3,450

Step-by-step explanation:

The question relates to investment and finance

The parameters given are;

The annual interest rate on the business savings account = 3%

The amount the business had in the account at the end of 1996 = $4,000

The given formula used to determine the final amount in the savings account, $F = p \cdot \left(1 + \dfrac{r}{100} \right )^t$

Where;

F = The final amount

p = The initial (principal) investment

r = The annual interest rate

t = The time in years

Therefore, we have;

The required information = The initial amount, 'p', the business invested in 1991

The time in years, 't', from 1991 to 1996 = 1996 - 1991 = 5

∴ The time in years from 1991 to 1996, t = 5 years

The final amount in 1996, F = $4,000

r = 3%

Plugging in the values in the given equation gives;

$4000 = p\cdot \left(1 + \dfrac{3}{100} \right )^5$

Therefore;

$p = \dfrac{4000}{\left(1 + \dfrac{3}{100} \right )^5} = 3,450.43513754$

To the nearest dollar, the initial amount the business invested in 1991, p ≈ $3,450.

3 0

2 years ago