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3 years ago

K (n) = 4n – 4; Find k (8) 28 4 -32 -24 The answer

Mathematics

1 answer:

Maurinko [17]3 years ago

8 0

Answer:

Step-by-step explanation:

k(8) = 4(8) - 4

= 32 - 4

= 28

answer is A

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5y(2x−3)=y(x+2)+20 where x=3

Feliz [49]

Here x=3
so, putting 3 instead of x
$5y(2(3)-3)=y(3+2)+20 \\ 5y(3)=5y+20 \\ 15y-5y=20 \\ 10y=20 \\ y=20/10=2$

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3 years ago

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What is the product in simplest form x^2+9x+18/x+2 times x^2-3x-10/x^2+2x-24

german

$\dfrac{x^2+9x+18}{x+2}\cdot\dfrac{x^2-3x-10}{x^2+2x-24}=\dfrac{x^2+6x+3x+18}{x+2}\cdot\dfrac{x^2-5x+2x-10}{x^2+6x-4x-24}\\\\=\dfrac{x(x+6)+3(x+6)}{x+2}\cdot\dfrac{x(x-5)+2(x-5)}{x(x+6)-4(x+6)}$

$=\dfrac{(x+6)(x+3)}{x+2}\cdot\dfrac{(x-5)(x+2)}{(x+6)(x-4)}=\dfrac{(x+3)(x-5)}{x-4}\\\\=\dfrac{x^2-5x+3x-15}{x-4}=\dfrac{x^2-2x-15}{x-4}$

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3 years ago

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What is the lateral area of the cone? 10 yd and 12.1 yd

Harman [31]

Answer:

The lateral area will be "381 yd²". A further solution is provided below.

Step-by-step explanation:

The given values are:

Radius of cone,

r = 10 yd

Height of cone,

L = 12.1 yd

As we know,

The lateral surface area of cone is:

= $\pi r L$

On substituting the values, we get

= $\frac{22}{7}\times 10\times 12.1$

= $\frac{22}{7}\times 121$

= $380.28 \ yd^2$

0r,

= $381 \ yd^2$

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3 years ago

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kolezko [41]

Answer:

0.0009

Step-by-step explanation:

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3 years ago

What is the interval when written in the form of (lower limit, upper limit)(lower limit, upper limit) ?

Stels [109]

The interval <span>when written in the form of lower limit and the upper limit would be 95.8 - 98.2. This can be calculated by subtracting 95 with 1.2 and by adding 95 with 1.2. Hope this answers the question. Have a nice day. Feel free to ask more question.</span>

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3 years ago