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skad [1K]
3 years ago
7

how would you say "the function is positive from -9 to 3 over the x axis but -9 is not included" using interval notation​

Mathematics
1 answer:
notka56 [123]3 years ago
5 0

Answer:

The function would be positive in:

<u>(-9, 3] </u>

Step-by-step explanation:

A function is considered positive on the X-axis when the changed values ​​in the function are greater than zero.  f(x) > 0

And is considered negative when f(x) < 0.

In this case, the numbers that make the function positive are the numbers from -9 to 3, but not including -9.

This can be written as (-9, 3]

It means that -9 is not taken but any number greater than -9 is.

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<img src="https://tex.z-dn.net/?f=5%202%2F3%20-10" id="TexFormula1" title="5 2/3 -10" alt="5 2/3 -10" align="absmiddle" class="l
polet [3.4K]
52/3 - 10
Convert both numbers into fractions.
52/3 - 10/1
Make sure they both have the same denominator
52/3 - 30/3
Now you can take the numerator and subtract it.
22/3
Now you simply simplify
7 1/3
So the answer is 7 1/3
6 0
3 years ago
In a popular snack mix, the ratio of pretzels to peanuts to cheese sticks is 8 : 5 : 1 by mass. If I have 64 g of pretzels, how
pentagon [3]

Answer:

48 grams

Step-by-step explanation:

pretzels : peanuts : cheese sticks

     8       :      5       :       1

 64 g      :     ? g      :       ? g

grams of peanuts = 5*64 / 8 = 40 g

grams of cheese sticks = 64*1 /8 = 8 g

<u>grams of peanuts and cheese sticks</u> = 40 + 8 = 48 grams

5 0
2 years ago
Given the equation square root of quantity 3x plus 6 end quantity equals 3, solve for x and identify if it is an extraneous solu
MissTica

Step-by-step explanation:

3x+6=3

-6 -6

3x =-3

÷3 ÷3

x= -1

4 0
3 years ago
HELP! HELP!
alexgriva [62]

Answer:

The answer should be C. By combining like terms you can find the answer. 1.75a+2.75a = 4.5a

2.25b + 1.75b = 4b

2.25c + 1.25c = 3.5c

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
reflect the figure with the given vertices across the y-axis, A(0,-3), B(3,-4),C(2,-1) what is the image of B
grin007 [14]

Answer:

A(0,3) B(3,4) C(2,1)

Step-by-step explanation:

when reflecting you just the change the sign if either the X or the Y. in this case it's the Y

8 0
3 years ago
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