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3 years ago

What is 2/3, 0.67, 5/9, 0.58, 7/12 in order from least to greatest

Mathematics

2 answers:

adell [148]3 years ago

7 0

1# 5/9
2# 0.58
3# 2/3
4# 0.67
5# 7/12

monitta3 years ago

6 0

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Which expression is equivalent to −1/12−1/3

disa [49]

This equals to -5/12

7 0

3 years ago

SUppose the total cost C(x) to manufacture a quantity x of insecticide (in hundreds of liters) is given by

Hitman42 [59]

Answer:

a) $C(x)$ is increasing in two regions: (i) $(+\infty, 8\,s)$ and (ii) $(10\,s,+\infty)$ .

b) $C(x)$ decreases in $(8\,s, 10\,s)$ .

Step-by-step explanation:

Let $C(x) = x^{3}-27\cdot x^{2}+240\cdot x +850$ , where $x$ is the quantity of insecticide, measured in hundreds of liters, and $C(x)$ is the total manufacturing cost as a function of the quantity of the insecticide, measured in US dollars. A possible approach to determine which regions of $C(x)$ are decreasing and increasing by means of the first derivative and graphing tools. The first derivative of the function is:

$C'(x) = 3\cdot x^{2}-54\cdot x+240$ (1)

Please notice that regions where C(x) is increasing has $C'(x) > 0$ , whereas $C'(x) < 0$ when $C(x) < 0$ .

We notice that $C(x)$ is increasing in two regions: (i) $(+\infty, 8\,s)$ and (ii) $(10\,s,+\infty)$ . Besides, $C(x)$ decreases in $(8\,s, 10\,s)$ .

6 0

3 years ago

Uhhh help me , i give brainliest

Yuri [45]

Answer:

Step-by-step explanation:

x² + 12x - 40 = 0

x² + 12x = 40

Now, 12/2 = 6. So add 6² = 36 to each side

x² + 12x + 36 = 40 +36

6 0

3 years ago

Henry wrote 4z2 - 22 as<br> 4. Are 4z2 – 22 and 4 equivalent expressions?<br> Explain.

lesantik [10]

If the q is: are 4z2-22 and 4 equivalent expressions, the answer is No.
4z2-22=4
8z-22 is not equal to 4
If you are looking for value of z, then:
8z-22=4
8z=4+22
8z=26
z=26/8
z=13/4
In case in which z=13/4, than expression
4z2-22 would be equivalent to 4.
Hope this helped.

4 0

3 years ago

What's the answer for both of them?

Alex Ar [27]

Answer:

11. D

12. C

Step-by-step explanation:

11. We need to find 2 numbers where the sum is -15 and the product is 56. Those two numbers are -7 and -8 so the answer is D.

12. Like the previous problem, we need to find 2 numbers where the sum is -9 and the product is 14. Those two numbers are -2 and -7 so the answer is C.

4 0

3 years ago