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3 years ago

Do you guys know how to answer this?

Mathematics

2 answers:

professor190 [17]3 years ago

5 0

In such equations, if the x has a negative operation after it, the value goes right on the plane. The distance between the two is 1 on the x axis, thus h = 1.

Svetach [21]3 years ago

3 0

Erm..........................nope

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Find the area of a square with side lengthd of 5 4 inches

mr Goodwill [35]

A=2916, you take 54 and square it

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3 years ago

How do I work this math problem?<br> (9 x 10 to the sixth power) (8 x 10 negative 4 power?

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2 years ago

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3 years ago

The fracture strength of tempered glass averages 14.1 (measured in thousands of pounds per square inch) and has standard deviati

ololo11 [35]

Answer:

0.15866 is the probability of the average fracture strength of selected 100 pieces of glasses that of exceed 14.3.

Step-by-step explanation:

Given that, the strength of a tempered(x) a glass has average 14.1 and has standard deviation 2.

$\mu_x=14.1$ , $\sigma_x=2$

n=number of selected pieces= 100.

The probability that the average fracture strength of 100 pieces of this glass exceed 14.3 is

$P(\overline X>14.3)=P(\frac{\overline X-\mu_x}{2/\sqrt n}>\frac{14.3-14.1}{2/\sqrt{100}})$

$=P(\overline X>1)$

$=1-P(\overline X\leq 1)$

= 1 - 0.84134

=0.15866.

3 0

2 years ago

You have 1200 feet of fencing and you want to make two fenced in enclosures by splitting one enclosure in

NARA [144]

Let x = length and y = width

You would have 2 lengths, so 2x and 3 widths, so 3y

Those need to equal total length of fence:

2x + 3y = 1200

The 3 widths would equal total fence minus the 2 lengths:

3Y = 1200-2x

Solve for y: y = 400 -2/3x

Area = length x width = xy. Replace y :

Area = x(400-2/3x) = 400x-2/3x^2

Differentiate:

400-4x/3 =0

4x/3 = 400

4x = 1200

X = 300

Y = 400-2/3(300) = 200

The dimension would be 300 ft x 200 ft

7 0

2 years ago