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3 years ago

Helppp

Mathematics

1 answer:

Ugo [173]3 years ago

5 0

Answer:

y = 3/4x + 7

Step-by-step explanation:

Put it in point-slope form:

y - 4 = 3/4(x - -4)

y - 4 = 3/4(x + 4)

y - 4 =3/4x + 3

y = 3/4x + 7

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What is 7 over (fraction bar) (8×4)+90÷9 ÷ (6^3)^-2 × 9 over (fraction bar) 6(5+4) = ?????

amid [387]

The answer is: " 36 " .
_______________________________
Note: " (8 * 4) + 90 ÷ 9 " = " (8 * 4) + (90 ÷ 9) " = "32 + 10 = 42" .

We can rewrite the "fraction":

7 / [ (8 * 4) + 90 ÷ 9 ] ; as: $\frac{7}{42}$ ;

and can reduce this value to (and rewrite as): " $\frac{1}{6}$ " ;
{ since: " $\frac{7}{42}$ = $\frac{7/7}{42/7}$ = $\frac{1}{6}$ " .}.

Note: The "fraction" : $\frac{9}{6(5+4)}$ ; the "9/6" cancel to "3/2" ;
{Since: "9÷3 = 3" ; and since: "6÷3 = 2" ).

So rewrite: $\frac{9}{6(5+4)}$ ; as:

$\frac{3}{2(5+4)}$ ;

Note: $\frac{3}{2(5+4)}$ ;

= $\frac{3}{2(9)}$ ;

= $\frac{3}{18}$ ;

→ Note: $\frac{3}{18}$ ; can be reduced to; & rewritten as:

" $\frac{1}{6}$ " ;

→ {since: " $\frac{3}{18}$ = $\frac{3/3}{18/3}$ ;

= $\frac{1}{6}$ ;
______________________________

Note that: (6²) ⁻² = 6⁽ ² * ⁻²⁾ = 6⁻ ⁴ ;

= $\frac{1}{6^4}$ ;
_________________________________________________________
So, we can rewrite our expression as:

$\frac{1}{6}$ ÷ $\frac{1}{6^4}$ * $\frac{1}{6}$ ;
_________________________________________________________
Note:
_________________________________________________________
$\frac{1}{6}$ ÷ $\frac{1}{6^4}$ * $\frac{1}{6}$ ;

= ( $\frac{1}{6}$ ÷ $\frac{1}{6^4}$ ) * $\frac{1}{6}$ ;

= ( $\frac{1}{6}$ * $\frac{6^4}{1}$ ) * $\frac{1}{6}$ ;

________________________________________________________
Start with :
________________________________________________________
→ ( $\frac{1}{6}$ * $\frac{6^4}{1}$ ) ;

The "6" in the " $\frac{1}{6}$ " ; cancels to a "1" ;
and the "6⁴ " in the " $\frac{6^4}{1}$ ) " ; cancels to a "6³ " ;

→ {Since: "6⁴ / 6 = 6⁴ / 6¹ = 6⁽⁴ ⁻ ¹⁾ = 6³ ;

→ and we have: $\frac{1}{1}$ * $\frac{6^3}{1}$ ;

→ The " $\frac{1}{1}$ " can be eliminated; since "1÷1= 1 " ;
and since: any value, divided by "1", equal that same value; & since "any value, multiplied by "1"; equals that same value" ;
________________________________________________________
We have: " 6³ " .
________________________________________________________

Now, we multiplied this value, " 6³ " , by " $\frac{1}{6}$ " ;

→ 6³ * $\frac{1}{6}$ ;

= $\frac{6^3}{1}$ * $\frac{1}{6}$ ;

Note: The "6³ " cancels out to "6² " ; and the "6" cancels out to "1" ;

{since: "6³ ÷ 6 = 6³ ÷ 6¹ = 6⁽³ ⁻ ¹⁾ = 6² " ;
and since: "6 ÷ 6 = 1 " ; ________________________________________________________
→ The answer is: 6² = 6 * 6 = 36 ;
________________________________________________________
The answer is: " 36 " .
________________________________________________________

7 0

3 years ago

Solve each equation by taking square roots 8v^2 +3=35

makvit [3.9K]

$8v^2 +3=35$

$8v^2=35-3

 
$ $Subtract \ 3 \ from \ both \ sides$

$
8v^2=32
 
$

$v^2= \dfrac{32}{8}$ $Divide \ both \ sides \ by \ 8$

$v^2=4$

$
v=+ \sqrt{4} 
 
$ $Take \ the \ square \ root \ of \ both \ sides$

$
v=+2
 

 
$ $\ Since \ 2*2=4, \ the \ square \ root \ of \ 4 \ is \ 2$

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3 years ago

16 POINTS THANK YOU SM WHOEVER ANSWERS THIS

zheka24 [161]

Use Pythagorean therom which is
A^2+B^2=C^2

C is the slant (65mi)
A is the vertical line (25mi)

solving for B so the equation is
C^2-A^2=B^2

4225-625=3600

√(3600)= 60

She can save 60miles

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3 years ago

Is it possible to draw a triangle with angles 150, 20 and 50

MrMuchimi

Answer:

Step-by-step explanation:

because the sum of the angles of a triangle should = 180, and adding these numbers together give a greater result of 220 degrees

3 0

3 years ago

A candy store call "sugar" built a giant hollow cube out of wood to hang above the entrance to their store. It took 54 feet2 of

ElenaW [278]

Answer: The volume inside is 27 cu. ft.

Step-by-step explanation:

The surface area of a cube is the area of each face of the cube added together. There are 6 faces on a cube; 54/6 = 9 sq. ft. for each face of the cube.

Each face of a cube is a square, whose area is given by A=s²:

9 = s²

Take the square root of both sides:

√9 = √s²

3 = s

Each side of the square, or edge of the cube, is 3 ft.

This makes the volume 3(3)(3) = 27 cu. ft.

3 0

3 years ago