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3 years ago

Simplify the expression. x(y+z)-2(xy)

Mathematics

2 answers:

Tomtit [17]3 years ago

8 0

X(y+z)-2(xy) = -xy+xz

Vadim26 [7]3 years ago

3 0

X(y+z)-2(xy) = xy + xz - 2xy = -xy + xz
I hope it helps you!!

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(2a²-a²-7a+2)÷(a-2) Answer Please

ikadub [295]

Answer:

2a^2 + 3a - 1 ,

Step-by-step explanation:

I am assuming you mean

2a^3-a^2-7a+2

By long division:

a - 2 ) 2a^3 - a^2 - 7a + 2 ( 2a^2 + 3a - 1 <------- Quotient

2a^3 - 4a^2

3a^2 - 7a

3a^2 - 6a

-a + 2

. . . . .

7 0

2 years ago

My rule is: y = x + 12 <br> If y = 17 <br> What is x?

Usimov [2.4K]

Answer:

x=5

Step-by-step explanation:

y=x+12

17=x+12

17=5+12

17=17 ✓

5 0

2 years ago

You are currently paying rent every year for your restaurant. You still have a contract that will last 2 more years. Starting to

Andreas93 [3]

The amount to be paid in rent after 2 years if the rent as of now is $3,000 will be; $3,213.675

The question allows that we choose the amount being paid as rent as of now.

Let the rent paid as of now be; $3,000

In essence; after the first year; the amount increases by 3.5% to become;

1.035 × $3,000

= $3,105.

After the second year; we have;

1.035 × $3,105

= $3,213.675

Ultimately; the amount to be paid after 2 years will be; $3,213.675.

When given the opportunity to change rent contracts;

A situation that will be beneficial would be a 3.5% reduction in rent per year
A situation that will not be beneficial would be a 7% increase in rent per year.

Read more;

brainly.com/question/24712879

8 0

2 years ago

PLEASE HELP! [99 POINTS] !! SERIOUS ANSWERS ONLY !!!

umka21 [38]

Hello!

We can find out our answer by plugging in the point (1,1) to see which equation works.

y=1.4(1.2)≠1
y=1.2≠1
y=0.5+0.3≠1
y=0.2+1.2≠1

As you can see, none of these answers are correct. You could make the last equation true by switching 0.2 to -0.2. It may have been a typo, so I would say the best answer is D.

I hope this helps!

5 0

3 years ago

Read 2 more answers

Can anyone explain how to do mathematical induction. The question is below. Brainliest awarded for the right answer. Thanks.

igomit [66]

The sum of the triangular numbers is $\frac{n(n+1)(n+2)}{6}$

According to the question, the series of triangular numbers is given as in the form of the number of dots constituting the equilateral triangles i.e.
1, 3, 6, 10, 15 . . . . .n

<h3>what is triangular numbers?</h3>

triangular number are the sequence and series of the numbers and each number represents and constitute in visualization of series of equilateral triangle.

given series in the figure
1, 3, 6, 10, 15, . . . . . . ., n
each number represents the number of dots containing in triangle
now the series can be given by
$S = \frac{n(n+1)}{2}$ for n = 1, 2, 3, 4,. . . . .n
now , according to the question the sum of the series can be given as
⇒ ∑S
⇒ ∑ $\frac{n^2+n}{2}$
⇒ $\frac{1}{2}[\sum n^2+\sum n]\\\frac{1}{2}[\frac{n(n+1)(2n+1)}{6}+\frac{n(n+1)}{2}] \\\frac{n(n+1)}{4}[\frac{(2n+1)}{3}+1] \\\frac{n(n+1)}{4}[\frac{(2n+1+3)}{3}] \\\frac{n(n+1)}{4}[\frac{(2n+4)}{3}] \\\frac{n(n+1)}{4}2[\frac{(n+2)}{3}]\\\frac{n(n+1)(n+2)}{6}$

Thus, the sum of the triangular number is given by $\frac{n(n+1)(n+2)}{6}$

Learn more about triangular numbers here:
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#SPJ1

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2 years ago