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Sonja [21]
3 years ago
15

How to solve by factoring 16x^=121

Mathematics
1 answer:
VMariaS [17]3 years ago
5 0
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Equation Given :
-------------------------------------------------------
16x² = 121

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Take away 121 from both sides:
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16x² - 121 = 0

-------------------------------------------------------
Make each term a perfect square
--------------------------------------------------------
(4x)² - (11)² = 0

--------------------------------------------------------
Apply algebraic rule : a² - b² = (a + b)(a - b)
--------------------------------------------------------
(4x + 11) (4x - 11) = 0

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Apply zero product property :
-------------------------------------------------------
4x + 11 = 0 or 4x - 11 = 0

--------------------------------------------------------
Solve for x :
--------------------------------------------------------
4x = - 11 or 4x = 11
x = -11/4 or x =11/4

--------------------------------------------------------------------------
Answer: x = -11/4 or x = 11/4
--------------------------------------------------------------------------
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11111nata11111 [884]

Here you go enjoy

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5 0
2 years ago
What is the GCF of 28a^3 b and 16ab ? <br><br> A)4ab<br> B)4a3b<br> C)28ab<br> D)112a3b2
N76 [4]
28a⁴b: 2 · 2 · 7 · a · a · a · a · b
 16ab: 2 · 2 · 2 · 2 · a · b

GCF(28a⁴b, 16ab) = 4ab

The answer is A.
7 0
3 years ago
A bathtub contains 12 gallons of water. With these 12 gallons, the bathtub is only 30% full. How many gallons of water can the b
Pachacha [2.7K]

Answer:

40 gallons

Step-by-step explanation:

Let the number of gallons that would completely fill the bathtub be represented by N.

Since 12 gallons of water gives 30% of the number of gallons to fill the bathtub, then;

30% of N = 12

\frac{30}{100} x N = 12

30N = 12 x 100

30N = 1200

divide both sides by 30,

N = \frac{1200}{30}

   = 40

The number of gallons that would completely fill the bathtub is 40 gallons.

6 0
3 years ago
What’s a Equlivant fraction for 2/8 3/8 and 4/8<br><br> Need ASAP<br> Thanks
DaniilM [7]

To get the equivalent fractions, you simply have to multiply the fraction with another fraction that would equal to 1.

2/8 x 2/2 (this is equal to 1) = 4/16; 1/4

3/8 x 2/2 = 6/16; 9/24

4/8 x 2/2 = 8/16; 1/2

7 0
3 years ago
PLEASE PLEASE HELP ME PLEASE I AM SO DUM I DONT KNOW THE ANSWER PLEASE JUST HELP ME
pogonyaev

Answer:

Cougar population was 790 at the beginning

830-790=40

3 0
3 years ago
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