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abruzzese [7]
2 years ago
12

Which number line shows the solution of -4x+ 6> 18?

Mathematics
1 answer:
Cloud [144]2 years ago
6 0

Consider the below figure attached with this question.

Given:

-4x+6>18

To find:

The number of line that represents the solution of given inequality.

Solution:

We have,

-4x+6>18

Subtracting 6 from both sides, we get

-4x>18-6

-4x>12

If an inequality is multiplied or divide by a negative number, then the sign of inequality must be change.

Divide both sides by -4.

x

x

The value of x is less than -3. It means number of the left of -3 are included in the solution set but -3 is not included in the solution set.

So, there is an open circle at x=-3 on the number and an arrow from -3  towards left.

Therefore, the correct option is A.

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Reika [66]

Answer:

8

Step-by-step explanation:

5 0
2 years ago
Write the following number by entering one digit in each box of the place value chart.
shutvik [7]

Answer:

The number itself is 508.231

Step-by-step explanation:

Any multiplying each of the numbers, we will have the specific places

Hundreds

5 * 100 = 500

Tenths

0 * 10 = 0

ones

8 * 1 = 8

Tenths = 2 * 1/10 = 2/10 = 1/5 = 0.2

Hundredths = 3/100 = 0.03

Thousandths = 1/1000 = 0.001

So we simply sum all these to get the number itself as follows

500 + 8 + 0.2 + 0.03 + 0.001 = 508.231

5 0
3 years ago
Simplify the following expression into simplest form with all positive exponents
mamaluj [8]

Answer:

I'm am pretty sure that the answer is 320. Hope this helps!

4 0
3 years ago
Read 2 more answers
Need quick help with this math best answer gets brainliest
frosja888 [35]

\frac{1}{2} x+6(x+15)=12\\\\\frac{1}{2} x+6x+90=12\\\\6\frac{1}{2} x+90=12\\6\frac{1}{2} x=-78\\x=-12

y=x+15\\y=-12+15\\y=3

6 0
3 years ago
How many ways can three different numbers be selected from 10 numbers to open a keypad lock?
Paraphin [41]

There are 720 ways through which 3 numbers can be selected from 10 numbers to open a keypad lock.

Given that there are 10 numbers are 3 numbers are required to open a keypad lock.

Permutations are the number of ways in which objects can be selected without replacements to form subsets.

It is expressed as nP_{r}=n!/(n-r)!.

Factorial of a number is the product of consecutive numbers less than the number.

Total numbers available=10

Numbers to be selected=3

Number of ways can be found by using permutations.

Number of ways =10P_{3}

=10!/(10-3)!

=10!/7!

=10*9*8*7!/7!

=10*9*8

=720 ways.

Hence there are 720 ways through which 3 numbers can be selected from 10 numbers.

Learn more about permutations at brainly.com/question/1216161

#SPJ1

6 0
2 years ago
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