Pleaseeeeeeeeeee helpppppppppppp and show your work plzzz

Mathematics

2 answers:

uysha [10]2 years ago

7 0

First,
We realise the temperature is -4 degrees Celsius. We see that the temperature is negative meaning it’s cold.
The lower the temperature, the colder and the higher the temperature, the hotter.

In the second part, the temperature drops so -7-4=-11

In the third part, the temperature is risen so, -11+3=-8

I hope this helped : )

Digiron [165]2 years ago

3 0

Im probably wrong but i think you would do -4 - 7 + 3 = -8

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Create an equivalent expression that includes a set of parentheses that make the value of the expression 13. Remember, you can h

Ratling [72]

Answer:

(2*9)-5+0

This equals 13.

(8*7)/4-1

This also equals 13.

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2 years ago

use the graphing calculator to graph the quadratic function y = x2 − 5x − 36. Which value is a solution of 0 = x2 − 5x − 36?

daser333 [38]

The solutions of the quadratic equation x² - 5x - 36 = 0 are -4 and 9.

The graph is attached below.

We are given a quadratic function.
A polynomial equation of degree two in one variable is a quadratic equation.
The function given to us is :
y = x² - 5x - 36
We need to find the solution of the quadratic function.
To find the roots, let y = 0.
x² - 5x - 36 = 0
Use the quadratic formula.
In elementary algebra, the quadratic formula is a formula that gives the solution(s) to a quadratic equation.
x = [-b±√b²-4ac]/2a
x = [-(-5) ± √25 - 4(1)(-36)]/2(1)
x = (5 ± √25 + 144)/2
x = (5 ± √169)/2
x = (5 ± 13)/2
x = 9 or x = -4