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dimaraw [331]
3 years ago
12

I need help and please have the work with the ones that are harder

Mathematics
1 answer:
Elina [12.6K]3 years ago
6 0
1. 6
2. -12
3. 0.75
4. 1.4
5.
6.
7.
8.
9. -0.7
You might be interested in
What is the sum of -11/4 + 2?
nadezda [96]
Ok so we do 
-11/4 + 2/1
find like denominator
-11/4 + 8/4
=
-3/4
So thats your final answer :)
6 0
4 years ago
Find the difference, –8 – (–5). Then check your work by writing the equivalent addition sentence.
pav-90 [236]

Answer:

-3

Step-by-step explanation:

double negative = positive so the equation turns into -8+5. add 5 by going 5 spaces closer to 0 on a number line. the answer is -3.

another equation is -3-5=-8

hope this helped! =)

4 0
2 years ago
Write the equation of the line in fully simplified slope-intercept form.
mixer [17]

Answer:

y=1/2x+6

Step-by-step explanation:

3 0
3 years ago
PLEASE HELP ASAP! ITS URGENT! Thank you.
Arte-miy333 [17]

Let's plug in x = 2.

f(x) = x^2

f(2) = 2^2 ... replace every x with 2

f(2) = 4

----------

Now plug in x = 3.

f(x) = x^2

f(3) = 3^2 ... replace every x with 3

f(3) = 9

-----------

And x = 5 as well.

f(x) = x^2

f(5) = 5^2 .... replace every x with 5

f(5) = 25

-----------

We see that

f(2)+f(3) = 4+9 = 13

which is not equal to f(5) = 25.

So f(2)+f(3) = f(5) is false.

------------

Another way to phrase why it doesn't work is because (2,3,5) isn't a pythagorean triple. The equation 2^2+3^2 = 5^2 is false.

If it said f(3)+f(4) = f(5), then it would be correct because 3^2+4^2 = 5^2 is a true equation.

6 0
3 years ago
If f(x)=x^2+2x-3 and g(x)=x^2-9, find (f/g)(4) and (f+g)(4)
Likurg_2 [28]

Answer:

<u>Part 1:</u> Find (f/g)(4) = 3

<u>Part 2:</u> Find (f+g)(4) = 28

Step-by-step explanation:

<u>Part 1:</u> Find (f/g)(4):

(f/g)(4) means <em>divide f function by g function and simplify it. Then plug in 4 into x of that simplified function.</em>

Let's do this:

\frac{x^2+2x-3}{x^2-9}\\=\frac{(x+3)(x-1)}{(x-3)(x+3)}\\=\frac{x-1}{x-3}

Plugging in 4 into x gives us:

\frac{x-1}{x-3}\\=\frac{4-1}{4-3}\\=\frac{3}{1}\\=3

The answer is 3

<u></u>

<u>Part 2:</u> Find (f+g)(4):

(f+g)(4) <em>means add f function and g function and simplify it. Then plug in 4 into x of that simplified function.</em>

Let's do this:

(x^2+2x-3)+(x^2-9)\\=2x^2+2x-12

Plugging in 4 into x gives us:

2x^2+2x-12\\=2(4)^2+2(4)-12\\=28

The answer is 28

5 0
3 years ago
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