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Art [367]
2 years ago
8

A submarine is 1,275.5 feet below sea level. It dives down 215.5 feet and then rises 125.5 feet. Finally, the sub dives down ano

ther 122.4 feet. Assume sea level is at an elevation of 0 feet.
Mathematics
1 answer:
Tema [17]2 years ago
6 0
1275*687+619y= 223yvwusv
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Does the function f(x) = 2x^2− 6x + 9 have a minimum or a maximum? Identify its value.
exis [7]

Answer:

minimum value of function is   \frac{45}{8} .

Step-by-step explanation:

Given function represents a parabola.

Now, here coefficient of x^{2} is positive , so the parabola will be facing upwards and thus the function will be having a minimum.

Now, as we know that minimum value of a parabolic function occurs at

x = \frac{-b}{4a} .

Where , b represents the coefficient of x and a represents the coefficient of x^{2} .

here, a = 2 , b = -6

Thus \frac{-b}{4a} = \frac{6}{8}

                                            =  \frac{3}{4}

So, at x =  \frac{3}{4}  minimum value will occur and which equals

y = 2×\frac{9}{16} - \frac{18}{4} + 9 =  \frac{45}{8} .

Thus , minimum value of function is   \frac{45}{8} .

4 0
2 years ago
Suppose that 30% of a population carries a certain gene. You want to estimate the probability that it will take at least a sampl
VMariaS [17]

Answer:

A

Step-by-step explanation:

Since only 30% of the population carries the gene, that would mean 70% doesn't carry it. Since you are using 10 digits for this experiment (0-9) this would mean that 0-2 would carry the gene (this equals 30%) and 3-9 would not (70%)

6 0
3 years ago
If AC=12, BC=3, find CE<br> 1) 3 square root of 3<br> 2) 6<br> 3) 18
azamat

Answer:

2) 6

Step-by-step explanation:

CE^2 = BC * AC

CE^2 = 3 * 12

CE^2 = 36

CE = 6

7 0
3 years ago
Read 2 more answers
Someone tell me what (GJ) is l<br> please!!
skad [1K]

Answer:

that box means the angle is 90 degrees.

Step-by-step explanation:

if you need anymore help just message me

4 0
3 years ago
Simplify. y 5 · y 3 ÷ y 2
Gnesinka [82]
Y^5 x y^3 /y^2
y^8/y^2
y^4
3 0
3 years ago
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