3 years ago

15 points!!! Thanks in advance.

Mathematics

2 answers:

mr_godi [17]3 years ago

8 0

16a^2 - 25b^2 is the answer

Ber [7]3 years ago

5 0

Answer is: By combining all the like terms the answer is: A.

$16A^{2} +25B^{2}$

You might be interested in

Determine whether the relation shown is a function. Explain how you know.

lutik1710 [3]

Answer:

It is not a function

Step-by-step explanation:

The plot shows (1, 1) and (1, 3) are both defined by the relation. It does not pass the "vertical line test", which requires the relation be single-valued everywhere.

3 0

3 years ago

Read 2 more answers

Which expression is the best estimate of 1.25 + (-2.69)?

Nitella [24]

Answer:

C. 2 + (-3)

Step-by-step explanation:

-2.69 can be rounded to -3 and 1 can be rounded to 2

4 0

3 years ago

What is the sign of f on the interval -2

TEA [102]

Answer:

$f$ is sometimes positive and sometimes negative.

Step-by-step explanation:

$f(x)=(x-3)(x+2)(x+4)(x+4)(x-1)(2x-9)$

Take $x=-1\in(-2,\frac{9}{2})\ as-2$

$f(-1)=(-1-3)(-1+2)(-1+4)(-1-1)(-2-9)\\\\=(-4)(1)(3)(-2)(-11)\\\\=-264\\\\f(-1)$

Take $x=2\in(-2,\frac{9}{2})\ as\ -2$

$f(2)=(2,-3)(2+2)(2+4)(2-1)(2\times2-9)\\\\=(-1)(4)(6)(1)(-5)\\\\=120\\\\f(2)>0$

Hence $f(x)$ for $x=-1$ and $f(x)>0$ for $x=2$

So $f$ is sometimes positive and sometimes negative in the interval.

3 0

3 years ago

Electroboy has been charged up to +96 C which of course causes an electric field to emanate around him. An electroball charged t

inessss [21]

Answer:

static electricty

Step-by-step explanation:

it is preserved charge

3 0

3 years ago

Dadas las funciones f(x) = x + 3, g(x)= x(cuadrada)+ 5x + 6,r(x) = x+2, s(x) = x(cuadrada) - 3x - 10

Aleksandr [31]

So the answer is D hope this would help you

5 0

3 years ago