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3 years ago

Describe the surface in r3 represented by the equation x + y = 7.

1 answer:

7 0

This is a plane in 3D space (aka "3-space") which is like a flat sheet of a paper that doesn't bend at all, and it extends infinitely in all directions along the flat surface. This plane is tilted and not vertical or horizontal.

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What is the least common denominator for the fractions 1/3and2/9?

Mice21 [21]

Answer:

LCD= 9

Step-by-step explanation:

1/3 = 3/9

2/9 = 2/9

8 0

3 years ago

Fashion for all jeans on sale for $13 designer pants has jeans on sale for $26 write tye total costs of 1,2,3 and 4 pairs of jea

kramer

Answer:

To purchase 4 pairs of jeans at Fashion for all would cost you $52, while buying 4 pairs of jeans from designer pants would cost $104.

Step-by-step explanation:

Fashion for all jeans:

1=13

2=26

3=39

4=52

Designer jeans

1=26

2=52

3=78

4=104

5 0

3 years ago

What is the kinetic Energy of a 110 kg linebacker rushing towards his football

Leviafan [203]

Answer:

The Kinetic energy of the 110 kg linebacker is 1375 J

Solution:

The kinetic energy of an object is the energy produced by its velocity. Kinetic energy of an object is directly proportional to the mass and the square of the its velocity.

Therefore, the formula for kinetic energy is

$KE=\frac{1}{2} \times m v^{2}$

Here, The linebacker’s mass m = 110 kg

The linebacker’s velocity v = 5 m/s

So by substituting the values,

The kinetic energy of linebacker is

$K E=\left(\frac{1}{2} \times 110 \times 5 \times 5\right) \text { Joules } \\\\ \Rightarrow (\frac{2750}{2}) Joules = 1375 Joules$

3 0

3 years ago

Solve for x please help me

MrMuchimi

X = 56 degrees because the sum of all the angles in a triangle is 180 degrees.

4 0

3 years ago

Jose needs to memorize words on a vocabulary list for French class. He has memorized 20 of the words, which is four-fifths of th

Stella [2.4K]

Answer:

Explanation:

In order to solve this the easiest way you can use equivalent fractions.

$\frac{4}{5} = \frac{20}{?}\\$

Since 4 times 5 equals 20 we can multiply 5 times 5 to get our answer.

$\frac{4}{5} * \frac{5}{5} = \frac{20}{25}$

25 is the answer. But, if we couldn't have gotten to 20 through the multiplication we could use a proportion. That would look like the initial problem but instead of a "?" we would use a variable. I will use t for total.

$\frac{4}{5} = \frac{20}{t}\\$

So now we have our problem set up. The next step is to cross multiply. 4 by t and 5 by 20.

$4t = 5 * 20\\4t = 100\\$

And now we can solve it like a normal algebra problem.

$\frac{4}{4}t = \frac{100}{4}\\t = 25$

Either way, we get 25.

5 0

3 years ago