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inn [45]
3 years ago
10

Can you guys please ask questions for a Q and A on yt

Mathematics
2 answers:
Ksju [112]3 years ago
8 0
How do you solve this

WARRIOR [948]3 years ago
4 0
Favorite you tuber ?
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2x^2=9-3x <br> Find the factors
d1i1m1o1n [39]

Answer:

x = -3, $ \frac{3}{2} $

Step-by-step explanation:

The given quadratic equation is: $ 2x^2 = 9 - 3x $

This can be written as: $ 2x^2 + 3x - 9 = 0 $

To solve a quadratic equation of the form $ ax^2 + bx + c = 0 $ we use the formula:

           $ x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} $

Here, a = 2; b = 3; c = - 9

Therefore, the roots of the equation are:

$ x = \frac{- 3 \pm \sqrt{9 - 4(2)(-9)}}{2(2)} $

$ \implies x = \frac{-3 \pm \sqrt{81}}{4} $

$ \implies x = \frac{-3 \pm 9}{4} $

We get two values of 'x', viz.,

x = $ \frac{-3 + 9}{4} $ and $ \frac{- 3 - 9}{4} $

$ \implies x = \frac{6}{4} \hspace{5mm} \& \hspace{5mm} \frac{-12}{4} $

⇒ x = -3, 3/2

Since the factors of the quadratic equation is asked, we write it as:

(x + 3)(x - $ \frac{3}{2} $) = 0

because, if (x - a)(x - b) are the factors of a quadratic equation, then 'a' and 'b' are its roots.

Multiply (x + 3) and (x - $ \frac{3}{2} $ to see that this indeed is the given quadratic equation.

5 0
3 years ago
What is the volume of a cylinder with a radius of 9 inches and a height of 2 inches​
White raven [17]

Answer:

508.94

Step-by-step explanation:

4 0
2 years ago
51<br> 100<br> as a decimal number
IrinaVladis [17]
51 as a decimal is .51 and 100 as a decimal is 1.00

51100 as a decimal is 511
8 0
3 years ago
Read 2 more answers
If you weighed 92 pounds on Earth, you would weigh 97.8 pounds on Saturn. write the weight on Saturn as a mixed number in simple
SIZIF [17.4K]

Answer:

97 8/10

Explanation:

If you weighed 97.8 pounds on saturn as a decimal, you would take the whole number 97. Now you're left with the ".8" = ".80" this decimal would be 8/10. Now you put them together to create 97 and 8/10.

3 0
3 years ago
What makes the value of k true
Igoryamba
When you multiply exponents like in the problem, you add them together.

So to find the answer, just subtract the final exponent of 'a' from the original.

6-2=4

The answer should be 4
7 0
3 years ago
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