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2 years ago

I PROMISE THIS IS EASY I WILL GIVE BRAINLEST!!!!!!!!11 Add or subtract.

Mathematics

2 answers:

Nastasia [14]2 years ago

7 0

Answer:

11x-6y

Step-by-step explanation:

we ignore the parenthesis so we add 8x and 3x since they are both positive which adds up to 11x

for -2y and -4y we add, a negative and a negative equals negative therefor -2y+(-4y)= -6y

11x-6y

MakcuM [25]2 years ago

4 0

For this case we must add the following expressions:

$(8x-2y) + (3x-4y) =$

We eliminate the parentheses, taking into account that: $+ * + = +\\+ * - = -\\8x-2y + 3x-4y =$

We add similar terms:

$8x + 3x-2y-4y =$

Equal signs are added and the same sign is placed:

$11x-6y$

Answer:

$11x-6y$

Option C

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What is the vertical asymptotes of the function f(x)=x-2/x*2-3x-4

frozen [14]

Answer:

Step-by-step explanation:

$f(x)=\dfrac{x-2}{x^2-3x-4}\\\\\text{DOMAIN}:\\\\x^2-3x-4\neq0\\\\x^2-4x+x-4\neq0\\\\x(x-4)+1(x-4)\neq0\\\\(x-4)(x+1)\neq0\iff x-4\neq0\ \wedge\ x+1\neq0\\\\x\neq4\ \wedge\ x\neq-1\\\\\text{Therefore the vertical asymptotes are:}\\\\x=-1\ and\ x=4.$

4 0

2 years ago

Which is the prime factorization of 81

Ksenya-84 [330]

Its not one so 52 would be right

7 0

3 years ago

Find the average rate of change of each function over the interval [0, 2]. Match each representation with its respective average

marishachu [46]

Average rate of change over interval [a,b]: r=[f(b)-f(a)]/(b-a)
In this case the interval is [0,2], then a=0, b=2
r=[f(2)-f(0)]/(2-0)
r=[f(2)-f(0)]/2

1) First function: h(x)
r=[h(2)-h(0)]/2
x=2→h(2)=(2)^2+2(2)-6
h(2)=4+4-6
h(2)=2
x=0→h(0)=(0)^2+2(0)-6
h(0)=0+0-6
h(0)=-6
r=[h(2)-h(0)]/2
r=[2-(-6)]/2
r=(2+6)/2
r=(8)/2
r=4

2) Second function: f(x)
A function, f, has an
x-intercept at (2,0)→x=2, f(2)=0
and a y-intercept at (0,-10)→x=0, f(0)=-10
r=[f(2)-f(0)]/2
r=[0-(-10)]/2
r=(0+10)/2
r=(10)/2
r=5

3) Third function: g(x)
r=[g(2)-g(0)]/2
From the graph:
g(2)=6
g(0)=2
r=(6-2)/2
r=(4)/2
r=2

4) Fourth function: j(x)
r=[j(2)-j(0)]/2
From the table:
x=2→j(2)=-8
x=0→j(0)=4
r=(-8-4)/2
r=(-12)/2
r=-6

Answer:
Pairs
1) h(x) 4
2) f(x) 5
3) g(x) 2
4) j(x) -6

8 0

3 years ago

10.The function f(x) is shown below:

Tom [10]

A. -f(1)=1,f(2)=2,f(n)=2f(n-1)f(n-2);n>2

7 0

2 years ago

Britney scored an 85 on her last math test write the prime factorization on 85

7nadin3 [17]

Answer:

$5 \times 17$

Step-by-step explanation:

Just so you know, for your information, composite numbers have more than <em>two</em> factors, and prime numbers have EXACTLY two factors [1 and itself (that number)].

* A common mistake is that people make is that they say that all even numbers are composite, and that is false because there are odd numbers that are PERFECT SQUARES and can be divided evenly without leaving a remainder. So, using the Prime Factorization Method, you can do this in two structures:

Ladder Diagram
Factor Tree

Factor Tree

/ \

17 5

Ladder Diagram

17|<u>85</u>

5|<u>5</u>

In the Ladder Diagram, when you are down to 1, you know that factorization is over and there is nothing else to do.

So, with that being said, the prime factorization of 85 is 17 × 5.

I am joyous to assist you anytime.

5 0

2 years ago