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3 years ago

Please help me!.!.!.!.!

Mathematics

2 answers:

tiny-mole [99]3 years ago

8 0

3 3 over 32 because it's the only one 4 and 8 can go to!

ipn [44]3 years ago

8 0

2 3/4 = 11/4 1 /8 = 9/8
11/4 % 9/8 = 11/4 x 8/9
so
the answer is 2 4/9

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it's believed that as many as 2222% of adults over 50 never graduated from high school. we wish to see if this percentage is t

jenyasd209 [6]

The given values are:

p = 22% = 0.22

Zc = 1.645 at 90% confidence level.

margin of error, E = 0.04

The formula we can use here is:

E = sqrt(pq/n) * Zc

0.04 = sqrt(0.22*(1-0.22)/n)*1.645

n = (0.22*(1-0.22))*(1.645/0.04)^2

n = 290.22

hence minimum sample size = 290

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2 years ago

What is the value of z?

UNO [17]

Answer:

z =23

Step-by-step explanation:

The three angles in a triangle add to 180 degrees.

62+95+z = 180

Combine like terms

157 +z = 180

Subtract 157 from each side

157-157 +z = 180-157

z =23

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2 years ago

Find the area of the shaded region of the square to the nearest square inch

sashaice [31]

I need a picture of the problem or something at least

8 0

3 years ago

Which phrase describes the linear relationship between the x and y values shown in the table?

kompoz [17]

9514 1404 393

Answer:

C. y is 6 less than x

Step-by-step explanation:

It is not hard to check.

A. 6 times x is 6×8 = 48, not 2

B. 6 times y is 6×2 = 12, not 8

C. 6 less than 8 is 2; 6 less than 9 is 3

D. 6 more than 8 is 14, not 2

The relation described in C matches the table.

5 0

2 years ago

Find a vector function, r(t), that represents the curve of intersection of the two surfaces. the paraboloid z = 9x2 y2 and the p

dolphi86 [110]

The vector function is, r(t) = $\bold{ < t,2t^2,9t^2+4t^4 > }$

Given two surfaces for which the vector function corresponding to the intersection of the two need to be found.

First surface is the paraboloid, $z=9x^2+y^2$

Second equation is of the parabolic cylinder, $y=2x^2$

Now to find the intersection of these surfaces, we change these equations into its parametrical representations.

Let x = t

Then, from the equation of parabolic cylinder, $y=2t^2$ .

Now substituting x and y into the equation of the paraboloid, we get,

$z=9t^2+(2t^2)^2 = 9t^2+4t^4$

Now the vector function, r(t) = <x, y, z>

So r(t) = $\bold{ < t,2t^2,9t^2+4t^4 > }$

Learn more about vector functions at brainly.com/question/28479805

#SPJ4

7 0

1 year ago