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2 years ago

Pls help I will mark

Mathematics

1 answer:

Andrew [12]2 years ago

3 0

Answer:

2x (2 or 2/1)

Step-by-step explanation:

The slope is 2/1, or 2x because the height between any two given intercepting points is two times higher than it is far.

Take for example the intercepting points at (6, 1) and (7, 3). Since slope is rise/run, the slope has risen 2 and 'run' 1. This makes the slope 2/1.

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Solve this inequality: 8z + 3 – 2z < 51

MArishka [77]

8z +3 - 2z < 51
6z + 3 < 51
-3. -3
6z < 48
-- ---
6. 6

z<8

8 0

3 years ago

Read 2 more answers

Zubin has two pieces of string. One piece is 36 inches long and the other is 48 inches long. He wants to cut them into equal pie

skelet666 [1.2K]

Answer:

12 pieces each:

$S_1 = 3\ in$

$S_2= 4\ in$

Step-by-step explanation:

Given

$S_1 = 36\ in$ -- first string

$S_2 = 48\ in$ --- second string

Required

Determine the number of equal pieces

To do this, we first calculate the HCF of the length of both pieces $(36\ and\ 48)$

$36 = 2 * 2 * 3 * 3$

$48 = 2 * 2 * 2 * 2 * 3$

$Common\ prime\ factors = 2, 2\ and\ 3$

The HCF is:

$HCF = 2 * 2 * 3$

$HCF = 12$

Hence, he can cut both strings to 12 pieces each

Recall that

$S_1 = 36\ in$

The first string can then be cut in to 3 inches each (i.e. 36/12)

$S_2 = 48\ in$

The first string can then be cut in to 4 inches each (i.e. 48/12)

7 0

3 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 $i^{2}=-1$ .