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denpristay [2]
3 years ago
9

I need help please !!

Mathematics
2 answers:
lana [24]3 years ago
3 0
What do you need help with?
crimeas [40]3 years ago
3 0
Um what do u need help with?
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Need help presenting this solution on and number line and in interval notation. (I’m absolutely clueless haha)
beks73 [17]

Since the number is a fraction make a number line using fractions. The inequality sign includes being equal to, so add a solid dot on -5/2 and since x is less than that, draw an arrow pointing to the left.

See attached drawing.

For interval notation since x can be any number less than or equal to -5/2 it would be written as (-∞, -5/2]

8 0
3 years ago
If aſc and a +b = C, prove that a|b.
mars1129 [50]

Answer with Step-by-step explanation:

Since we have given that

a + b = c

and a|c

i.e. a divides c.

We need to prove that a|b.

⇒ a = mb for some integer m

Since a|c,

So, mathematically, it is expressed as

c= ka

Now, we put the above value in a + b = c.

So, it becomes,

a+b=c\\\\a+b=ka\\\\b=ka-a\\\\b=a(k-1)\\\\\implies a|b

a=mb, here, m = k-1

Hence, proved.

7 0
3 years ago
The product of a number and 7, decreased by the number is equal to 42. Find the number.
evablogger [386]

7
this is the answer, its pretty simple. I'm not sure the mathematical procedures but if you plug in 7 you get 49. Then all you got to do is subtract by 7, because the question states the number is the same. So basically,
7(7) - 7 = 42

8 0
3 years ago
Identify the Type II error if the null hypothesis, H0, is: The capacity of Anna's car gas tank is 10 gallons. And, the alternati
Elina [12.6K]

Answer:

20gallons

Step-by-step explanation:

6 0
3 years ago
Find the difference: -4- (-3) =
GarryVolchara [31]

Answer:

<h2>-1</h2>

Step-by-step explanation:

-4 - (-3)

= -4 + 3

= -1

<h3>#AyoBelajar</h3>
7 0
3 years ago
Read 2 more answers
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