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liq [111]
3 years ago
12

Helllp pls help and don’t comment if u don’t know

Mathematics
2 answers:
k0ka [10]3 years ago
7 0

For the first one Answer:7z^3 −2z+1+2z^2

Step-by-step explanation:

(7z ^3

+ 4z −1)+(2z^2

− 6z +2)

Combine 4z and −6z to get −2z.

7z3  − 2z −1 + 2z2  +2

Add −1 and 2 to get 1.

7z3  − 2z + 1 + 2z2

inna [77]3 years ago
4 0

Answer:

a) 7z³+2z²-2z+1

b)2x²+3x-8

Step-by-step explanation:

a) (7z³+4z-1)+(2z²-6z+2)

   7z³+2z²-2z+1

b) (5x²-2x-1)-(3x²-5x+7)

   5x²-2x-1-3x²+5x-7

   2x²+3x-8

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What is the x-coordinate or the x-intercept or the line that passes through the points (3,6) and (5,9)
Snezhnost [94]

Answer:

c = 1

Step-by-step explanation:

sorry if wrong

6 0
4 years ago
Pls help answer this
Paladinen [302]

Answer: Third option

Step-by-step explanation:

For this exercise it is important to remember the following:

1. By definition, the Associative property of addition states that it does not matter how you grouped the numbers, you will always obtained the same sum.

2. The rule for the  Associative property of addition is the following (given three numbers "a", "b" and "c"):

a + (b + c) = (a + b) + c

Knowing the information shown before, you can identify in the picture attached that the option that illustrates the Associative property of addition is the third one. This is:

(11+8)+1=11+(8+1)

As you can notice that you will always get the same result:

(19)+1=11+(9)\\\\20=20

8 0
3 years ago
Someone help me I need to understand
Firlakuza [10]

Answer:

Easy you describe the sum of each arithmetic series. GOOD LUCK

Step-by-step explanation:

3 0
4 years ago
Helpp! im way behind in school and im confused
Verizon [17]

Answer:

1. 7/20

2. 3/10

3. 11/20

4. 21/25

5. 59/100

6. 439/1000

7. 36/25 or 1 and 11/25

8. 1/40

9. 83/25 or 3 and 8/25

10. 663/500

11. 1/125

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Pls help it due ASAP.<br> Please show workings <br> It due in a hour....
castortr0y [4]

Answer:

C. \frac{4}{5}

Step-by-step explanation:

In order to find the slope knowing two points, use the slope formula \frac{y_2 - y_1}{x_2-x_1}. x_1 and y_1 represent the x and y values of one point the line intersects, and x_2 and y_2 represent the x and y values of another point the line intersects.

Knowing this, use the points (-4, -4) and (6, 4) for the formula. Substitute -4 for x_1, -4 for y_1, 6 for x_2, and 4 for y_2. Then, simplify:

\frac{(4) - (-4)}{(6) - (-4)} \\= \frac{4+4}{6+4} \\= \frac{8}{10} \\= \frac{4}{5}

Thus, \frac{4}{5} is the slope of the line.

5 0
4 years ago
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