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2 years ago

SHOW WORK PLS I NEED IT ASAP

Mathematics

2 answers:

miss Akunina [59]2 years ago

7 0

Lol I in elementary don’t ask why I’m here

Katena32 [7]2 years ago

6 0

Answer:

i is only in middle school i don't understand but this is a cool question

Step-by-step explanation:

GAEEEEEEEEEEEEEEEEEEEEE!!!!!

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PLEASE ITS EASY I FOGOT HOW TO DO IT

AfilCa [17]

Answer:

x> -1

Step-by-step explanation:

Open circle means > or <

5 0

2 years ago

The perimeter of a square is to be between 14 and 72 feet, inclusively. Find all possible values for the length of its sides. (&

xxMikexx [17]

We know that the perimeter is the all the sides added up together. Generally, you have $p = 2l+2w$ , where l is length and w is width.

For a square, all sides are of the same length, so you can write $p=4x$ , where x is any side.

If the smallest perimeter is 14, then $14 = 4x$ , so x is 3.5. If the largest perimeter is 72, then $72 = 4x$ , so x is 18.

Therefore, you have 3.5 ≤ x ≤ 18.

3 0

2 years ago

Number 1 and 2 please (25 points)

Elenna [48]

Answers:

1) $(3x+2)+(4-5x)=-2x+6$

$(3+2i)+(4-5i)=7-3i$

2) $(1-3x)(2+x)=-3x^{2}-5x+2$

$(1-3i)+(2+i)=5-5i$

Step-by-step explanation:

In mathematics there are rules related to complex numbers, specifically in the case of addition and multiplication:

Addition:

If we have two complex numbers written in their binomial form, the sum of both will be a complex number whose real part is the sum of the real parts and whose imaginary part is the sum of the imaginary parts (similarly as the sum of two binomials).

For example, the addition of these two binomials is:

$(3x+2)+(4-5x)=3x-5x+2+4=-2x+6$

Similarly, the addition of two complex numbers is:

$(3+2i)+(4-5i)=3+4+2i-5i=7-3i$ Here the complex part is the number with the $i$

Multiplication:

If we have two complex numbers written in their binomial form, the multiplication of both will be the same as the multiplication (product) of two binomials, taking into account that $i^{2}=-1$ .