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3 years ago

Rewrite the following without an exponent (5/4)^2 PLEASE HELPP!

Mathematics

1 answer:

Anastasy [175]3 years ago

6 0

Answer:

16/25

Step-by-step explanation:

(5/4)^-2 = (4/5)^2 = 16/25

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De que numero es 7 el 10%

Elina [12.6K]

Answer:

Step-by-step explanation:

X*0.1=7

X=7/0.1

X=70

4 0

3 years ago

What are the zeros of the quadratic function f(x) = 6x2 + 12x - 7?<br>

mina [271]

Answer:

$\frac{-6+\sqrt{78} }{6}$ and $\frac{-6-\sqrt{78} }{6}$

Step-by-step explanation:

We are asked that what are the zeros of the quadratic function f(x) = 6x² +12x -7.

So, we have to find the roots of the equation, f(x) = 6x² +12x -7 =0 ...... (1)

Since the quadratic function can not be factorized, so we have to apply Sridhar Acharya's formula.

This formula gives if, ax² +bx +c =0, the the two roots of the equation are

$\frac{-b+\sqrt{b^{2}-4ac } }{2a} , \frac{-b-\sqrt{b^{2}-4ac } }{2a}$

Therefore, in our case 'a' being 6, 'b' being 12 and 'c' being -7, the two roots of the equation (1) will be

$\frac{-12+\sqrt{12^{2}-4*6*(-7) } }{2*6}, \frac{-12-\sqrt{12^{2}-4*6*(-7) } }{2*6}$

= $\frac{-12+\sqrt{312} }{12},\frac{-12-\sqrt{312} }{12}$

= $\frac{-6+\sqrt{78} }{6}$ and $\frac{-6-\sqrt{78} }{6}$

Hence, x= $\frac{-6+\sqrt{78} }{6}$

and x= $\frac{-6-\sqrt{78} }{6}$

(Answer)

9 0

4 years ago

Mark down of 18% and 4 chairs are bought for $35 then 2 more chairs go on sale how much did all chairs cost

kondaur [170]

The answer is. 52.5 thank me later

5 0

3 years ago

Web Consultants, Inc., pays Alice Rose an annual salary of $56,800. Today, Alice’s boss informs her that she will receive a $7,3

pogonyaev

Answer: 13%

Step-by-step explanation:

To answer this question we can simply take her raised salary by her old salary...

(Put this into a calculator) 7300/56800=0.13

$7300 is 13% of her old salary

3 0

3 years ago

39 - 15x if x = 2<br> Evaluate <br><br> HELP PLEASE!!

algol [13]

The Answer Would Be 9

39 - 15x
15 x 2 = 30
39 - 30 = 9

4 0

3 years ago