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3 years ago

Please simplify this expression ! Show your work and please answer this !!

Mathematics

1 answer:

tangare [24]3 years ago

6 0

Answer:

18q^2 - 52q + 32

Step-by-step explanation:

We can use the Distributive Property to solve this.

(2q-4)(9q-8)

2q(9q) + 2q(-8) + -4(9q) + -4(-8)

18q^2 - 16q - 36q + 32

18q^2 - 52q + 32

18q^2 - 52q + 32

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7^16/7^12=7^-18/? what is the missing denominator

creativ13 [48]

$\bf \left.\qquad \qquad \right.\textit{negative exponents}\\\\
a^{-{ n}} \implies \cfrac{1}{a^{ n}}
\qquad \qquad
\cfrac{1}{a^{ n}}\implies a^{-{ n}}
\qquad \qquad 
a^{{{ n}}}\implies \cfrac{1}{a^{-{{ n}}}}\\\\
-------------------------------\\\\$

$\bf \cfrac{7^{16}}{7^{12}}=\cfrac{7^{-18}}{x}\implies x\cdot 7^{16}=7^{12}\cdot 7^{-18}\implies x\cdot 7^{16}=7^{12-18}
\\\\\\
x\cdot 7^{16}=7^{-6}\implies x=\cfrac{7^{-6}}{7^{16}}\implies x=\cfrac{7^{-6}\cdot 7^{-16}}{1}\implies x=7^{-6-16}
\\\\\\
\boxed{x=7^{-22}}\implies x=\cfrac{1}{7^{22}}$

4 0

3 years ago

A 6-sided die is rolled. what is the probability of rolling a number less than 4?

ohaa [14]

1/2

Step-by-step explanation:

All outcomes of a single die= 6

Events less than 4 =3

probability=3/6

=1/2

7 0

1 year ago

What is the square root of 465

kaheart [24]

Answer:

The square root of 465 with one digit decimal accuracy is 21.5.

Step-by-step explanation:

√465 = 21.5

3 0

2 years ago

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I am confused, I need help.

Digiron [165]

Answer:

[0,1.75]

Step-by-step explanation:

range is the y value

6 0

3 years ago

3/2x-4=20<br> Solve for x

Thepotemich [5.8K]

3/2x-4=20

We simplify the equation to the form, which is simple to understand
3/2x-4=20

We move all terms containing x to the left and all other terms to the right.
+2x=+20+4

We simplify left and right side of the equation.
+2x=+24

We divide both sides of the equation by 2 to get x.
x=12

4 0

3 years ago

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