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3 years ago

8

Which two numbers add up to 27 and multiply to -160?

1 answer:

OleMash [197]3 years ago

7 0

+ 32
and
- 5

will do that job for you.

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What expression is equivalent to 12x^4/4x^16 helpppp

adoni [48]

Answer: 48x/64

Work (assuming ^ is multiplication):

12x^4/4x^16

12x ^ 4x = 48x

4 ^ 16 = 64

3 0

2 years ago

90 in terms of pi please help

andrew11 [14]

Answer:

90 degrees pi/2 radians

I think so but i dont know

Step-by-step explanation:

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3 years ago

Solve the following equations;-<br><br> x - 9 /√x + 3 =1

fgiga [73]

Answer:

13 , 6.

Step-by-step explanation:

A equation is given to us and we need to find out the value of x . The given equation to us is ,

$\sf\implies \dfrac{ x -9}{\sqrt{x+3}}= 1$

Cross multiply ,

$\sf\implies x - 9 =\sqrt{ x +3}$

Squaring both sides ,

$\sf\implies (x - 9)^2 = x + 3$

Simplify the whole square ,

$\sf\implies x^2+9^2-2.9.x = x +3 \\$

$\sf\implies x^2+81 - 18x = x -3$

Add 3 and subtract x on both sides ,

$\sf\implies x^2 -18x-x +81-3=0$

Simplify ,

$\sf\implies x^2 -19x +78=0$

Split the middle term of the quadratic equation,

$\sf\implies x^2-13x-6x+78=0$

Take out common ,

$\sf\implies x( x -13)-6(x-13)=0$

Take out ( x -13 ) as common ,

$\sf\implies ( x -13)(x-6)=0$

Equate both factors to 0 ,

$\sf\implies \boxed{\pink{\sf x = 13,6}}$

<u>Hence</u><u> the</u><u> </u><u>value</u><u> of</u><u> </u><u>x</u><u> is</u><u> </u><u>1</u><u>3</u><u> </u><u>or </u><u>6</u><u> </u><u>.</u>

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2 years ago

Darius buys a bottle of a chemical solution that contains 70% alcohol. The bottle contains 500 milliliters of solution.

Andru [333]

Answer:

350 ml

Step-by-step explanation:

70% of 500 ml = 0.7*500 ml = 350 ml

6 0

3 years ago

Read 2 more answers

You find $13.20 on the ground at school, all in nicke's,

den301095 [7]

Answer:SORRY:(

I do not really get the question so i do not know

Step-by-step explanation:

3 0

3 years ago