3 years ago

Me ayudas a hacer las tareas por favor

Mathematics

1 answer:

katrin2010 [14]3 years ago

8 0

Answer:

cuales son tus preguntas

Step-by-step explanation:

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Omg pls help and include work if you can. please simplify

Kruka [31]

rad 128 can be broke into 64*2

square root of 64 is 8, times -5,

which leaves -40rad2

7 0

2 years ago

Perform the indicated operation and simplify the result.

hodyreva [135]

Answer:

The answer is

$\frac{(2x - y)(2x + y)}{(4x + 3y)(2x + y)} \times \frac{(4x + 3y)(x - 3y)}{(2x + y)(x - 3y)} \\ \\ = \frac{2x - y}{4x + 3y} \times \frac{4 + 3y}{2x + y} \\ \\ = \frac{2x - y}{2x + y}$

Hope this helps you

8 0

3 years ago

5. The mapping f: xax² + bx + c defined on the set of real numbers is such that f(0) = -4,f(1)-1 and/(-1)= -5. Find a, b and c.

Marrrta [24]

It looks like you're saying

$f(x) = ax^2 + bx + c$

and you're asked to find $a,b,c$ given $f(0)=-4$ , $f(1)=-1$ , and $f(-1)=-5$ .

Evaluate $f$ at the three given points:

$x=0 \implies f(0) = \boxed{c = -4}$

$x=1 \implies f(1) = -1 = a + b + c \implies a+b = 3$

$x=-1 \implies f(-1) = -5 = a - b + c \implies a - b = -1$

$(a+b) + (a-b) = 3 + (-1) \implies 2a = 2 \implies \boxed{a=2}$

$a-b = -1 \implies \boxed{b=3}$

and the mapping is $f(x) = 2x^2 + 3x - 4$ .

5 0

2 years ago

30% of the sixth grade is eleven years old. if there are 90 eleven years olds, how many total students are in the sixth grade?

Darina [25.2K]

The answer is 300 students.
.3x = 90
90 / .3 = 300

5 0

3 years ago

Read 2 more answers

0.11616.......

Vilka [71]

23/198 that is the simplified version

3 0

3 years ago

Me ayudas a hacer las tareas por favor​

Me ayudas a hacer las tareas por favor