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Ray Of Light [21]

3 years ago

8

How do you do this? Why's the answer??

2 answers:

spayn [35]3 years ago

8 0

By eliminating the variable an then simplifying. Hope this helps :)

Natasha_Volkova [10]3 years ago

6 0

Well idk maybe find out p then add

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2/3x+4=2x true or false

aleksley [76]

Answer: False !!!

do the math

5 0

3 years ago

A rectangular prism has a length of 20 in a width of 2 in and a height of 3 1/4 in the prism is filled with cubes that have edge

Zinaida [17]

You can express the edge lengths in terms of "cubes" or you divide the total volume by the volume of a cube. It works either way.

Edge lengths are
.. 80 cubes by 8 cutes by 13 cubes
so total volume is
.. (80 * 8 * 13) = 8320 cubes

In cubic inches, the volume is
.. (20 in)*(2 in)*(3 1/4 in) = 130 in^3.
The volume of a 1/4-in cube is (1/4 in)^3 = 1/64 in^3.
Then the number of cubes that will fit in the prism is
.. (130 in^3)/(1/64 in^3) = 8320 . . . . cubes

8320 cubes are needed to fill the rectangular prism.

7 0

3 years ago

1. What is the solution of n² – 49 = 0? (1 point)

maks197457 [2]

Answer:

1. $n=\pm7$

2. $x=\pm7i[tex]3.[tex]\pm 12x =a$

4. 22

Step-by-step explanation:

1. $n^2 - 49 = 0$

$n^2 =49$

$n= \sqrt{49}$

$n=\pm7$

2. $x^2+64 = 0$

$x^2 =-64$

$x= \sqrt{49}$

$x=\pm7i[tex]3. Area of square = [tex]a^{2}$

Where a is the side

We are given an area o square = $144x^{2}$

So, $144x^{2}=a^{2}$

$\sqrt{144x^{2}}=a$

$\pm 12x =a$

4. We are given that the solution of quadratic equation -9 and 9

So, equation becomes:

$(x+9)(x-9)=0$

$x^2- 81=0$

So, in the given equation $x^2 + z = 103$

z should be the number from which if we subtract 103 so we get 81

Substitute z = 22

$x^2 + 22 = 103$

$x^2 + 22 -103=0$

$x^2 -81=0$

Thus the value of z is 22

8 0

3 years ago

Read 2 more answers

taurus [48]

110,000 x 0.07 = 7700 x 25 = $192,500

8 0

3 years ago

SOLVE EACH EQUATION CHECK FOR EXTRANEOUS SOLTUIONS.

Anna007 [38]

Answer:

(i)x=-8

(ii)y>18

(iii)x>10

Step-by-step explanation:

I think the ans above is correct.

I hope it will help u....

4 0

2 years ago