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timurjin [86]
3 years ago
15

Find the sum of (-4) + 5. -9 -1 1 9

Mathematics
2 answers:
Scrat [10]3 years ago
8 0
The answer is 1 because if you had 4 to negative 4 you get 0 so if you had 5 to negative 4 you get 1
Svetllana [295]3 years ago
4 0

Answer:

-1 is the answer trust me

Step-by-step explanation:

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I’m unsure of what this is. help someone
JulsSmile [24]
<h2>Part 1)</h2>

Let's analyze each part of the function:

FROM x = 0 TO x = 5:

We can find the equation of this line by using The Slope-Intercept Form of the Equation of a Line, that states:

The \ graph \ of \ the \ equation: \\ \\ y=mx+b \\ \\ is \ a \ line \ whose \ slope \ is \ m \ and \ whose \ y-intercept \ is \ (0, b)

So the y-intercept here is (0,4) and m=\frac{4}{5}, therefore:

\boxed{y=\frac{4}{5}x+4}

FROM x = 0 TO x = 5:

From the previous line, we know that at x=5 the output is:

y=\frac{4}{5}x+4 \\ \\ y=\frac{4}{5}(5)+4 \\ \\ y=4+4=8

So the point P_{1}(5,8) lies on both lines.

For this new line, the slope is m=-\frac{3}{5}

So, with the Point-Slope Form of the Equation of a Line we can find the equation of this other line:

The \ equation \ of \ the \ line \ with \ slope \ m \\ passing \ through \ the \ point \ (x_{1},y_{1}) \ is:\\ \\ y-y_{1}=m(x-x_{1})

So:

y-8=-\frac{3}{5}(x-5) \\ \\ y=8-\frac{3}{5}x+3 \\ \\ \boxed{y=-\frac{3}{5}x+11}

The graph is shown below.

<h2>Part 2)</h2>

The graph of the linear function f(x)=ax+b is a line with slope m=a and y-intercept at (0,b). From the items, we can assure that the following equations are linear functions:

\bullet 3y=2x-1.5 \ because \ y=\frac{2}{3}x-\frac{1}{2} \\ \\ \\ \bullet y=1 \ because \ y=m(0)+1 \\ \\ \\ \bullet 5(x+y)=-25 \ because \ 5x+5y=-25 \ \therefore 5y=-5x-25 \therefore y=-x-5

In conclusion, the other functions are nonlinear and they are:

\bullet \ y=x^2+3 \\ \\ \bullet \ y=x^3 \\ \\ \bullet \ y=12-x^2

7 0
3 years ago
How do you work out pie charts if thewy don't have any numbers on them?
abruzzese [7]
Adding on to the previous, estimate FRACTIONS of the chart, and then figure out the percentage of those fractions
6 0
4 years ago
Write an addition expression that equivalent to 65-79. Then evaluate the expression
Andreas93 [3]

65-79= -14

That being said...

-17+3= -14

6 0
3 years ago
Read 2 more answers
Help pls<br> I’m not dumb lol I just don’t know whether it’s 7x or 14x<br> I’m assuming it’s 14x
Taya2010 [7]
You are finding the perimeter, which has double of each side length given.

Note: P = perimeter

2(5x - 1) + 2(2x + 1) = P 

Distribute 2 to each monomial in the given parenthesis

2(5x - 1) = 10x - 2
2(2x + 1) = 4x + 2

10x - 2 + 4x + 2 = P

combine like terms.

P = 10x + 4x - 2 + 2
P = 14x

C) 14x, is your answer

hope this helps
8 0
4 years ago
I need help! And I need a reasoning as well
Sindrei [870]

Answer:

A) 3²·3³

E) 3^4·3^1

Step-by-step explanation:

When multiplying numbers with exponents, keep the base the same and add the exponents.

So A and E would equal 3 to the fifth power.

6 0
3 years ago
Read 2 more answers
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