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2 years ago

I need help or im gonna fail

Mathematics

2 answers:

dem82 [27]2 years ago

5 0

Answer:

1) 4:7

2) 3:1

3) $0.50 per ounce

4) 7.5 degrees per hour

5) 61 mils per hour

6) 30 pounds per box

7) $1.89 per notebook

a. 3 centerpieces for party per hour

b. 14 hours

AlladinOne [14]2 years ago

5 0

Number 8 is 1.89 . I hope this is right. If it’s us please heart this!

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A square field has an area of 479 ft what is the approximate length of a size of the field

MissTica

Answer:

21.9 ft

Step-by-step explanation:

The area of a square is the square of the side length, so the side length is the square root of the area:

... s = √(479 ft²) ≈ 21.886 ft

This is approximately 21.9 ft.

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2 years ago

How does knowing the double 6+6=12 help solve the near double 6+7=13?

Yakvenalex [24]

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2 years ago

What is the circumference of a circular swimming pool with a diameter of 6 ½ feet? (use 22 over 7 as pi)

trapecia [35]

Answer:

10.21 feet.

Step-by-step explanation:

circumference of circle with diameter d is given by $\pi d$

where r is the radius of the circle.

_____________________________

given

diameter = 6 1/2 = 13/2 feet

\thus, circumference of circle is calculated as following

$circumference = \pi *13/2 = 22/7 * 13/2\\circumference = 11*13/7*2 = 143/14 = 10.21$

Thus, circumference of given circle is 10.21 feet.

5 0

2 years ago

If you can see it will plzzz help

Serhud [2]

Answer:

You should probably change the language on your computer if thats what your asking

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Let L be the line parametrized by x = 2 + 2t, y = 3t, z = −1 − t. (a) Find a linear equation for the plane that is perpendicular

Elden [556K]

Answer:

Step-by-step explanation:

Given that L is a line parametrized by

$x = 2 + 2t, y = 3t, z = −1 − t$

The plane perpendicular to the line will have normal as this line and hence direction ratios of normal would be coefficient of t in x,y,z

i.e. (2,3,-1)

So equation of the plane would be of the form

$2x+3y-z =K$

Use the fact that the plane passes through (2,0,-1) and hence this point will satisfy this equation.

$2(2)+3(0)-(-1) =K\\K =5$

So equation is

$2x+3y-z =5$

b) Substitute general point of L in the plane to find the intersecting point

$2(2+2t)+3t-(-1-t) =5\\4+8t+1=5\\8t=0\\t=0\\(x,y,z) = (2,0,-1)$

i.e. same point given.

3 0

2 years ago