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3 years ago

Can someone help me with this one 2x2-18=0

Mathematics

2 answers:

bixtya [17]3 years ago

4 0

Answer:

-14

Step-by-step explanation:

Daniel [21]3 years ago

3 0

Answer:

Step-by-step explanation:

2x-18=0

2x=18 /:2

x=9

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Write an expression to represent: the sum of four and the product of three and a number x

Amanda [17]

I'm not positive, but I think it's:
4+(3x)

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3 years ago

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Can someone help with this I didn’t pay attention in math and I have homework ‍♀️

Lady bird [3.3K]

Answer:

Step-by-step explanation:

Even though it is absolute value, 17 is still the greatest answer. If a number is in absolute value it will never be negative, only positive values can come out of an absolute value.

An example for absolute value would be if you had to measure the amount of distance away from something, even if its behind you, it would still be a positive number of length away from you.

If you had the absolute value of -25, it would automatically be equal to 25.

So circling back to the original problem, the absolute value of 17 would be greater than 3, -4 and -8. If (hypothetically) it was the absolute value of -17 it would still be greater because it would equal 17.

I hope that made sense, im sorry that it's a bit lengthy. Have a good day :)

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2 years ago

An acute, isosceles triangle has a vertex angle measuring 78 degrees. What are the measures of the other two angles?

mixas84 [53]

Answer:

Step-by-step explanation:

180-78=102

102/2=51

6 0

3 years ago

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A bag contains four batteries, all of which are the same size and are equally likely to be selected. Each battery is a differen

GuDViN [60]

Answer:

A) 64 ways in sample space

B) 24 ways in sample space

Step-by-step explanation:

Given:-

- A bag contains 4 batteries

- We are to select 3 at random

Find:-

how many points will be in the sample space if the batteries are selected

A) with replacement

b) without replacement

Solution:-

- The counting principle says if there are "m" ways to do one thing

and "n" ways do do another, then there are (m*n) ways of doing both.

A. 4 ways to grab first battery; put battery back;

4 ways to grab second battery; put battery back;

4 ways to grab second battery

======================================

4^3 = 64 ways in the sample space.

======================================

B. 4 ways to grab first battery; DON'T put battery back; You are left with 3.

3 ways to grab second battery; DON'T put battery back; You are left with 2

2 ways to grab third battery;

======================================

4*3*2 = 24 ways in the sample space.

======================================

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3 years ago

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One bricklayer can build a wall in 6 hours. Another bricklayer could build the same wall in 4 hours. If they work together, how

Natasha2012 [34]

Answer:

they work together, it will take 2.4 hours to build the wall.

Step-by-step explanation:

One bricklayer can build a wall in 6 hours.

One hour work = $\frac{1}{6}$

Another bricklayer can build the same wall in 4 hours.

One hour work = $\frac{1}{4}$

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Let's take "t" the time taken to build the wall.

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4 years ago