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AleksandrR [38]
3 years ago
8

What is 1+1 lol cool question hehe

Mathematics
1 answer:
Alex787 [66]3 years ago
7 0

Answer:

2

Step-by-step explanation:

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Which answer describe the type of sequence? 3,9,15,21
Alenkinab [10]

Answer:

The sequence is arithmetic

we know that

In an arithmetic sequence, the difference between consecutive terms is always the same and is called common difference

In this problem we have

3,9,15,21,...

Let

a1=3, a2=9,a3=15,a4=21

a4-a3=21-15=6

a3-a2=15-9=6

a2-a1=9-3=6

The sequence is arithmetic

The common difference is equal to

5 0
3 years ago
What is the slope of a line that is perpendicular to the line with equation 12x+3y=9?
defon

Answer:

Step-by-step explanation

4x-3=y

perpendicular means

-1/4x-3=y

5 0
2 years ago
Open Brains data. SETUP: Some people believe that first born subjects have different intelligent (different IQ test). Given the
melamori03 [73]

Answer:

the test I will perform is d. ​​Two-sided t-test

Step-by-step explanation:

When we are to compare between different data, critical regions occur on both sides of the  mean of a normal distribution,they are as a result of two-tailed or two-sided tests.

In such tests, consideration has to be given to values  on both sides of the mean.

for this question, it is expected to compare weather it is true that first born have different intelligent or not, weather to accept a null hypothesis or reject.

For example, if it is  required to show that the percentage of metal, p, in a

particular alloy is x%, then a two-tailed test is used,  since the null hypothesis is incorrect if the percentage  of metal is either less than x or more than x.  

8 0
3 years ago
Solve for x.<br> x2(^) + 9x = 0
kolezko [41]
X^2+9x=0
x(x+9)=0
x=0, -9
5 0
3 years ago
Read 2 more answers
Is x= -2 a solution to 3x-6-12?
Ann [662]

Answer:

Actually x would be 6

4 0
3 years ago
Read 2 more answers
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