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3 years ago

2x^2-9x+9 what roots does this polynomial has what kind of roots?

1 answer:

6 0

B^2 - 4ac
(-9)^2 - 4 (2)(9)
= 81 - 72
=9 >0 yet it is a perfect square (3^2 =9)
So , it is 2 real and rational roots

(x-3) ( 2x-3) =0
x = 3 , x = 3/2

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Juan invest $3700 in a simple interest account at a rate of 4% for 15 years

OleMash [197]

Question:

Juan Invest $3700 In A Simple Interest Account At A Rate Of 4% For 15 Years. How Much Money Will Be In The Account After 15 Years?

Answer:

There will be $ 5920 in account after 15 years

Solution:

The simple interest is given by formula:

$S.I = \frac{p \times n \times r }{100}$

Where,

p is the principal

n is number of years

r is rate of interest

From given,

p = 3700

r = 4 %

t = 15 years

Therefore,

$S.I = \frac{3700 \times 4 \times 15 }{100}\\\\S.I = 37 \times 4 \times 15\\\\S.I = 2220$

How Much Money Will Be In The Account After 15 Years?

Total money = principal + simple interest

Total money = 3700 + 2220

Total money = 5920

Thus there will be $ 5920 in account after 15 years

8 0

4 years ago

Solve 0.09 divided by 0.3

Cloud [144]

Answer:

0.3.

Step-by-step explanation:

0.3|0.09

move the decimal over once on both sides.

03|.9

03.|.9

- 9

_______

4 0

3 years ago

What is the range of the function y = x2? all real numbers x ≥ 0 y ≥ 0

masya89 [10]

Answer:

Step-by-step explanation:

Todos los reales

4 0

3 years ago

Find polynomial whose zeros are 3 and -4

horrorfan [7]

Answer:

Simplest polynomial: x²+x-12

Step-by-step explanation:

zeroes of polynomial= 3,-4

Therefore,

f(3) =0

f(-4)=0.

By factor Theorem

(x-3) and (x+4) are factors

so simplest polynomial is

(x-3)(x+4)

= x² - 3x + 4x -12

= x² + x -12

Hope it helps

6 0

3 years ago

The pilot of a passenger jet announced that their cruising altitude was approximately 32,750 feet. How many miles above the grou

SpyIntel [72]

Answer:

formula = feet / 5280

=> 32750 / 5280

=> 6.20265.......

When rounded to the nearest tenth we get,

6.20 or simply 6.20

If my answer helped, please mark me as the brainliest!!

Thank You!!

5 0

3 years ago