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LekaFEV [45]
2 years ago
9

Solve the system by substitution. (x+3y=9 14.x - 2y = -6

Mathematics
1 answer:
Elina [12.6K]2 years ago
7 0

Answer:

x=0 ,y=3

if you have any questions about the way I solved it,don't hesitate to ask

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The formula for the volume of a tetrahedron is given as v=sh. Rewrite the
IrinaK [193]

Answer:

h = 6 units

Step-by-step explanation:

The formula for the volume of a tetrahedron is given as :

V = sh

Where

s is area of base and h is height

Put s = 8 and V = 48 to find h as follows :

h=\dfrac{V}{s}\\\\=\dfrac{48}{8}\\\\h=6

So, the height of the tetrahedron is 6 units.

6 0
3 years ago
5р + 3р + (-9) ? <br><br>A. 8p+9 <br>B. 3(p+(-3))+5p <br>C. None of the above <br>.<br>.<br>.​
kvv77 [185]

Answer:

none of the above

Step-by-step explanation:

because 5p + 3p = 8p and positive integers × negative integers = negative integers.

3 0
3 years ago
Two containers designed to hold water are side by side, both in the shape of a cylinder. Container A has a radius of 15 feet and
AfilCa [17]

9514 1404 393

Answer:

  65.6%

Step-by-step explanation:

The question is essentially asking the ratio of the volumes.

  Va = πr²h = π(15²)(20)

  Vb = πr²h = π(19²)(19)

The ratio of volumes is ...

  Va/Vb = π(15²)(20)/(π(19³)) = (15²)(20)/19³ ≈ 0.65607

Container B will be about 65.6% full when container A is empty.

3 0
2 years ago
Can someone help me with this question please ASAP?
koban [17]

Answer:

x = 5.6 or you can write like this: x = 5 3/5

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
What is the gradient of a line with an equation of 3x-2y-6=0​
Genrish500 [490]

Answer:

Slope <em>m</em> = 3/2

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Equality Properties

<u>Algebra I</u>

Slope-Intercept Form: y = mx + b

  • m - slope
  • b - y-intercept

Step-by-step explanation:

<u>Step 1: Define Equation</u>

3x - 2y - 6 = 0

<u>Step 2: Rewrite</u>

<em>Find slope-intercept form</em>

  1. Subtract 3x on both sides:                    -2y - 6 = -3x
  2. Add 6 on both sides:                             -2y = -3x + 6
  3. Divide -2 on both sides:                         y = 3/2x - 3

<u>Step 3: Break Function</u>

<em>Identify Parts.</em>

Slope <em>m</em> = 3/2

y-intercept <em>b</em> = -3

6 0
2 years ago
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