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3 years ago

Help ? Plz forgot the steps (3z+9)(z-4)

1 answer:

3 0

It's a binomial times a binomial, so you FOIL
First multiply the First numbers
3z*z = 3z(^2)
Then multiply Outers:
3z* -4 = -12z
Nest, Inners:
9*z = 9z
Finally, the Lasts:
-4*9 = -36
Then, throw it all together in descending order, starting with the variable of highest degree to lowest:
3z^2 - 12z + 9z - 36
Last of all, simplify coefficients with like terms and you're good to go:
3z^2 - 3z - 36
Hope this helps!

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Arrange the following number in descending order 0,9; 0,009; 0,09; <br>0,0009 ;9,09

VLD [36.1K]

Answer:

9.09 , 0.9 , 0.09 , 0.009 , 0.0009

Explanation:

The more places behind a decimal point a number is, the smaller it is

Hope this helped you! :)

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2 years ago

THE VALUE OF 9 IN 495,123 IS HOW MANY TIMES THE VALUE OF 9 IN 63,129

taurus [48]

THE VALUE OF 9 IN 495,123 IS 10000 <span>TIMES THE VALUE OF 9 IN 63,129</span>

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3 years ago

Bojangles has a rectangle-shaped roof with a width of 6x^2 feet and a length 12x^3. What is the area of the roof?

emmainna [20.7K]

area of rectangle = length x width

this is the formula to find it.

now , put the values of length and width,

=> area= 12 x 3 x 6 x 2

=> area = 432 feet^2

Hope this helps!

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3 years ago

A^3-a^2-2a+8 factorize

Nostrana [21]

Answer:

factors-----(a+2)(a^2+4-3a)

4 0

2 years ago

(a^2 - b^2)/(2 + d^3)

Georgia [21]

Answer:

Solving the equation $\frac{a^2-b^2}{2+d^3}$ by putting a=6, b=4 and d=1/2 we get $\frac{160}{17}$

Step-by-step explanation:

We are given formula: $\frac{a^2-b^2}{2+d^3}$

and values a=6, b=4 and d=1/2

We need to put the values of a, b and d in the given equation $\frac{a^2-b^2}{2+d^3}$ and find their result

Putting values in the equation:

$\frac{a^2-b^2}{2+d^3}\\=\frac{(6)^2-(4)^2}{2+(\frac{1}{2})^3}\\=\frac{36-16}{2+\frac{1}{8}}\\=\frac{20}{\frac{2*8+1}{8}}\\=\frac{20}{\frac{17}{8}}\\=\frac{20*8}{17}\\=\frac{160}{17}$

So, solving the equation $\frac{a^2-b^2}{2+d^3}$ by putting a=6, b=4 and d=1/2 we get $\frac{160}{17}$

7 0

3 years ago