All categories

3 years ago

Please help I'm not sure what to do first.

Mathematics

1 answer:

nadezda [96]3 years ago

7 0

Answer:

Step-by-step explanation:

it has to be under 90 degrees

You might be interested in

Solve 5x – 2y = 11 for y.

Yuki888 [10]

Answer
42

step by step
5 times 11 - 2 times 11

3 0

3 years ago

Solve the solution of a system of linear equation<br><br> 1/2 x + y = - 6<br> 6 x + 2 y = 8

Lilit [14]

Answer:

(4,-8)

Step-by-step explanation:

Plug in the answers for the equations.

4 0

3 years ago

There are 20 mice in a 5 m2 field ecosystem. The population density of mice is _____.

Alex17521 [72]

The formula for density = number/ area
In this case number=20
area = 5m^2

Density = 20/5=4 mice per m^2
The right answer is <span>A. 4 per m2</span>

6 0

3 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

2 years ago

How many numbers of possible live card hands (hands in five-card poker) drawn without replacement from a standard deck of 52 pla

makkiz [27]

The combination shows that the numbers of possible live card hands drawn without replacement from a standard deck of 52 playing cards is 2,598,960.

<h3>How to explain the information?</h3>

A permutation is the act of arranging the objects or numbers in order while combinations are the way of selecting the objects from a group of objects or collection such that the order of the objects does not matter.

Since the order does not matter, it means that each hand is a combination of five cards from a total of 52.

We use the formula for combinations and see that there are a total number of C( 52, 5 ) = 2,598,960 possible hands.

Learn more about permutations and combination on:

brainly.com/question/4658834

#SPJ1

3 0

2 years ago

Please help I'm not sure what to do first.​

Please help I'm not sure what to do first.