How many solutions does this system have?

Please help me with question 4!!

JulsSmile [24]

Answer:

2:10

Step-by-step explanation:

8 0

3 years ago

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Properties of addition and subtraction in integers the number one is done for you

Softa [21]

Answer:

,‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️☹️☹️☹️☹️☹️☹️☹️☹️☹️☹️☹️☹️☹️☹️‼️☹️‼️☹️‼️☹️‼️☹️‼️☹️‼️☹️‼️☹️‼️☹️‼️☹️‼️☹️‼️☹️☹️⏹️☹️‼️☹️‼️☹️‼️☹️‼️☹️‼️‼️☹️‼️☹️‼️☹️‼️☹️☺️‼️☺️☹️☺️☹️‼️☺️☹️☹️‼️☺️‼️☹️☹️‼️☹️‼️☹️☹️‼️‼️‼️‼️‼️☹️☹️☹️☹️‼️‼️☹️☹️☹️‼️☹️‼️☹️‼️☹️

5 0

3 years ago

What is the value of x?<br><br> Enter your answer in the box.<br><br> x =

lutik1710 [3]

Answer:

x = 9

Step-by-step explanation:

Since you have a equilateral triangle all angles are 60°.

7x - 3 = 60

7x = 60+3

7x = 63

x = 63/7

x = 9

7 0

4 years ago

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What is the additive inverse of -5

liraira [26]

Answer:

You should be thinking about a negative number. In fact, you should be thinking about a number that is the opposite of 5! -5! So, the additive inverse of 5 is -5

Step-by-step explanation:

4 0

3 years ago

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for In the given expression, calculate as indicated. Express your answer as a single polynomial in standard form. 4x^(3)-2x^(2)

matrenka [14]

Answer:

The polynomial in standard form is $y = 14 + 6\cdot x - 8\cdot x^{2}+4\cdot x^{3}$ .

Step-by-step explanation:

A polynomial in standard fulfills the following condition:

$y = \Sigma_{i=0}^{m}\,c_{i}\cdot x^{i}$ , $\forall\,i\in \mathbb{N}$ , $0 \leq i \leq m$

Let be $y = (4\cdot x^{3}-2\cdot x^{2}+9)-(6\cdot x^{2}-6\cdot x + 5)$ , which is now handled algebraically:

1) $(4\cdot x^{3}-2\cdot x^{2}+9)-(6\cdot x^{2}-6\cdot x + 5)$ Given

2) $(4\cdot x^{3}-2\cdot x^{2}+9) +(-1)\cdot (6\cdot x^{2}-6\cdot x + 5)$ $(-1)\cdot a = -a$

3) $(4\cdot x^{3}-2\cdot x^{2}+9) +[(-1)\cdot (6\cdot x^{2})+(-6\cdot x)\cdot (-1)+5]$ Definition of substraction/Distributive property

4) $(4\cdot x^{3}-2\cdot x^{2}+9)+(-6\cdot x^{2}+6\cdot x + 5)$ $(-1)\cdot a = -a$ / $(-a)\cdot (-b) = a\cdot b$

5) $4\cdot x^{3}+ (-2\cdot x^{2}-6\cdot x^{2})+6\cdot x + (9+5)$ Associative and commutative properties

6) $4\cdot x^{3}-8\cdot x^{2}+6\cdot x + 14$ Distributive property/Definition of addition

7) $14 + 6\cdot x -8\cdot x^{2}+4\cdot x^{3}$ Commutative property/Result

The polynomial in standard form is $y = 14 + 6\cdot x - 8\cdot x^{2}+4\cdot x^{3}$ .

7 0

4 years ago