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Andrei [34K]
3 years ago
13

Help me on the first question pls

Mathematics
1 answer:
Margaret [11]3 years ago
3 0
To do the first question, simplify the equation, putting like terms together, by adding and subtracting to do this.

Then looking at the equation that you solved for, look and see if there are any other equations that are related in some way to the original solved equation.

Pay close attention to the positive and negative signs.






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Write an expression for this one <br> the sum of an odd integer and the next odd integer.
Sidana [21]
Let x is the odd integer
x +2 is the next odd integer
so sum of an odd integer and the next odd integer:
x + (x+2) 
8 0
3 years ago
The admissions officer at a small college compares the scores on the Scholastic Aptitude Test (SAT) for the school's in-state an
fredd [130]

Answer:

37

Step-by-step explanation:

Here, we have two different samples, hence, to obtain the confidence interval, we use the relation for the confidence interval for two sample means ;

(x1 - x2) ± Margin of error

Where, (x1 - x2) = point estimate of the sample mean, this is the difference in mean of the two samples.

From the question ;

x1 = 1150 ; x2 = 1113

Hence, the point estimate is : (1150 - 1113) = 37

6 0
2 years ago
Ethan is thinking of a negative number that is lower than -4 and higher than
s2008m [1.1K]

When the number is odd and a multiple of 3, the number that Ethan is thinking of is -9.

<h3>How to illustrate the number?</h3>

In mathematics, a multiple is the product of any quantity and an integer. It should be noted that, for the quantities a and b, it can be said that b is a multiple of a if b = na for some integer n, which is called the multiplier. If a is not zero, this is equivalent to saying that b/a is an integer.

In this case, Ethan is thinking of a negative number that is lower than -4 and higher than -10 and his number is odd and a multiple of 3. The number is -9 since 9 is a multiple of 3.

Learn more about multiples on:

brainly.com/question/26856218

#SPJ1

7 0
1 year ago
Whats the difference between a $20,000 and a $50,000 annual salary over a lifetime?
laiz [17]
The difference between the two salaries is $30,000
50,000
-20,000
__________
30,000
7 0
3 years ago
Emma's backpack has a mass of 6523 grams. The total mass of her backpack and Benjamin's backpack together is 9009 grams. What is
Rus_ich [418]

Answer:

2486

Step-by-step explanation:

9009-6523=2486

6 0
3 years ago
Read 2 more answers
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