All categories

2 years ago

Find the Product and Combine similar terms.1. -1(7+4b) =2. x(x²–2xy+y²) =3. -5x(-3+x) =

1 answer:

3 0

-1(7+4b) - distribute the -1 to the expression
(-1 * 7) + (-1 * 4b) — ( + and - = - )when it is multiplied
= -7 - 4b — there is no like term to added to subtracted so it will stay as like

x(x^2 - 2xy+y^2) distribute x to all
= x(x^2) - x(2xy) + x(y^2)
= x^3 - 2x^2y + xy^2 in multiplication exponent add to similar variable
No like term to connect

-5x(-3+x)
= -5x(-3) -5x(+x). (- and - is +)
= 15x -5x. similar variable x so connect the like connect like term by subtracting them
= 10x

You might be interested in

What is the 12th term in the sequence?<br><br> an=−16+2n<br><br><br> Enter your answer in the box.

Elis [28]

Input 12 for n.

$a_{12}$ = -16 + 2(12)
$a_{12}$ = -16 + 24
$a_{12}$ = 8

The 12th term in the sequence is 8.

3 0

3 years ago

Read 2 more answers

Find the value of x

Hitman42 [59]

Answer:

10 i think

Step-by-step explanation:

6 0

3 years ago

Please help me with this thanks

Ronch [10]

If x = 1, then 3*1 = 3 which when modded with 5, we get 3 as a remainder. In other words, 3/5 = 0 remainder 3. We don't use the quotient at all when it comes to modular arithmetic. All we care about is the remainder.

If x = 2, then 3*2 = 6 which leads to remainder 1 when we divide by 5. Therefore, 3x = 1 (mod 5) when x = 2.

If x = 3, then 3*3 = 9 = 4 (mod 5) because 9/5 = 1 remainder 4.

So 3x = 4 (mod 5) when x = 3.

<h3>The final answer is C) 3</h3>

We don't need to check D since x = 3 is a solution and it's smaller than x = 4.

If you wanted to check x = 4, then 3*4 = 12 = 2 (mod 5) because 12/5 yields a remainder of 2.

7 0

2 years ago

A map's scale is 1 inch : 3.5 miles.

notka56 [123]

Answer:

28 miles

Step-by-step explanation:

to fin the actual distance you must multiply the didtance on the map by the map scale

3.5*8=28

8 0

3 years ago

Michelle is building a rectangular landing strip for airplanes .She has material to cover 1/1,500 of a square mile. The landing

ANEK [815]

I think that the missing word here is:
"with the amount of the material that Michelle has"

Let's say that her landing strip is x miles long, then its area would be:

$\frac{1}{6} *x$

We also know how big it is:

$\frac{1}{6} *x= \frac{1}{1 500}$

now, let's multiply both sides by 6:
$\frac{6}{6} *x= \frac{6}{1 500}$
$1 *x= \frac{3}{750}$
$x= \frac{1}{250}$

So the answer is that it would be $x= \frac{1}{250}$ miles wide

3 0

3 years ago

Find the Product and Combine similar terms.1. -1(7+4b) =2. x(x²–2xy+y²) =3. -5x(-3+x) =​

Find the Product and Combine similar terms.1. -1(7+4b) =2. x(x²–2xy+y²) =3. -5x(-3+x) =