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lidiya [134]
3 years ago
14

Create a four types of two steps each with different operation. Solve them and explain the steps

Mathematics
1 answer:
Luba_88 [7]3 years ago
6 0

Answer:

4 + 5 = 9

9 – 5 = 4

9 – 5 ≠ 5 – 9

9 – 4 = 9 + (–4)

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Answer and Step-by-step explanation:

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7 0
2 years ago
What value should be added to the expression to create a perfect square?
Shalnov [3]
Let's take a look at a perfect square trinomial.

(x+7)^2

We can distribute this expression to get x^2+14x+49.

An important relation to recognize here is that the constant is the square of half of the x value.

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8 0
3 years ago
A national survey of middle school students asks how many hours of sleep they get on school nights. Which sample ​best​ represen
mariarad [96]

Answer:

D

Step-by-step explanation:

It wouldnt be a single grade being surveyed so we would choose d in additon a and b isnt national since it says 'in a certain town' and 'in a certain county'.

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5 0
2 years ago
Write a linear equation of the line that passes through (6, -1) and is parallel y
Lostsunrise [7]
Answer
The answer is A, y=-1/2x +2
5 0
3 years ago
The 8th term of an arithmetic sequence is 12.5 and the 13th term is 20. What is the 25th term?
miv72 [106K]
From the 8th to the 13th there are five numbers, and the difference between the 8th and the 13th is 20-12.5=7.5, so the difference between two neighboring number is 7.5÷5=1.5
from the 13th and the 25th there are 12 numbers, so the total difference is 12*1.5=18
so the 25th term is 20+18=38
7 0
2 years ago
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