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timama [110]
3 years ago
8

A negative number plus a positive number is a negative number.

Mathematics
2 answers:
ipn [44]3 years ago
7 0

Answer:

Sometimes

Step-by-step explanation:

Examples:

-5 + 10 = 5   FALSE

-10 + 5 = -5  TRUE

Pavel [41]3 years ago
3 0
Sometimes

-2+9=7 FALSE

-12+4=-8 TRUE
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#37 I need help with. best answer plz???
Luda [366]
I agree because he calculated it the right way and that is the same answer I got.

Hope I helped :)


4 0
3 years ago
Find the value of x.
Arlecino [84]

Answer:

<h2>20</h2>

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>
  • equation
  • PEMDAS
<h3>tips and formulas:</h3>
  • a straight line contains 180°
<h3>let's solve:</h3>

according to the question

7x+x+20=180

=>8x+20=180

=>8x=160

therefore

x=20

7 0
2 years ago
Write a polynomial function of least degree with integral coefficients that has the given zeros.
densk [106]
The zeroes are
0, -5, 3 + i (and its conjugate)

The factors are
x (x + 5) (x - (3 + i)) (x - (3 - i))
Expanding...
(x² + 5x)((x - 3) - i) ((x - 3) + i)
(x² + 5x)((x - 3)² - i²)
(x² + 5x)(x² - 6x + 9 - (-1))
(x² + 5x)(x² - 6x + 10)
x⁴ - 6x³ + 10x² + 5x³ - 30x² + 50x
x⁴ - x³ - 20x² + 50x
4 0
3 years ago
Rx+9/5=h, Solve for the value of x
muminat

rx+(9/5)=h 

rx=h-(9/5) 

x=(h-(9/5))/r

5 0
3 years ago
Type the correct answer in the box,
HACTEHA [7]

<u>We'll assume the quadratic equation has real coefficients</u>

Answer:

<em>The other solution is x=1-8</em><em>i</em><em>.</em>

Step-by-step explanation:

<u>The Complex Conjugate Root Theorem</u>

if P(x) is a polynomial in x with <em>real coefficients</em>, and a + bi is a root of P(x) with a and b real numbers, then its complex conjugate a − bi is also a root of P(x).

The question does not specify if the quadratic equation has real coefficients, but we will assume that.

Given x=1+8i is one solution of the equation, the complex conjugate root theorem guarantees that the other solution must be x=1-8i.

3 0
3 years ago
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