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Vedmedyk [2.9K]
3 years ago
8

Solve/ Find x -3(x+7)+2(x-2)

Mathematics
1 answer:
butalik [34]3 years ago
7 0

Answer:

Step-by-step explanation:

-3x - 21 + 2x -4

-x - 25

-(x + 25)

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A pile of sand in the shape of a cone has a diameter of 8 in. and a height of 5 in.
max2010maxim [7]

if it has a diameter of 8, that means its radius is half that, or 4.


\bf \textit{volume of a cone}\\\\
V=\cfrac{\pi r^2 h}{3}~~
\begin{cases}
r=radius\\
h=height\\[-0.5em]
\hrulefill\\
r=4\\
h=5
\end{cases}\implies V=\cfrac{\pi (4)^2(5)}{3}\implies V=\cfrac{80\pi }{3}
\\\\[-0.35em]
\rule{34em}{0.25pt}\\\\
~\hfill \stackrel{using~\pi =3.14}{V= 83.7\overline{3}}~\hfill

8 0
2 years ago
Need help please I only have a little bit of time
dimaraw [331]

Answer:

A. 7/11

Step-by-step explanation:

5 0
3 years ago
Show work / explain it ​
aivan3 [116]
Answer:
X 1 = -4,X 2 =12

EXPLANATION:

Determine the defined range
X+6/x=6/x-8,x#0,x#8

Simplify the equation using cross-multiplication
(X+6) x (x-8)=6x

Move variable to the left-hand side and change its sign
(X-6)x(x-8)-6x=0

Multiply the parentheses
X^2-8x+6x-48-6x=0

Since two opposites add up to zero, remove them from the expression
X^2-8x-48=0

Write -8x as a difference
X^2+4x-12x-48=0

Factor out x from the expression
Xx(x+4)-12x-48=0

Factor out -12 from the expression
Xx(x+4)-12(x+4)=0

Factor out from the expression
(x+4)x(x-12)=0

When the product of factors equals 0, at least one factor is 0
x+4=0
x-12=0

Solve the equation for x
X=-4
X-12=0
X=-4,x#0,x#8

Check if the solution is in the defined range
X=-4
x=12

The equation has 2 solutions

X 1 = -4,X 2 =12

Hope this helps


3 0
3 years ago
Which expression is equivalent to 6w + 5 - 3w + 7
love history [14]

Answer:

the answer is B

Step-by-step explanation:

6w + 5 - 3w + 7

<h3>i) collect like terms</h3>

= 6w - 3w + 5 + 7

= 3w + 5 + 7

<h3>ii) add the numbers</h3>

= 3 w + 5 + 7

= 3w + 12

4 0
2 years ago
Read 2 more answers
IN WHICH SET OF ORDERED PAIRS IS Y A FUNCTION OF X ? A.(1.25,6) (3,6) (5.75,6) (11,6) B.(2,15) (3,12) (4,10) (4,8) C.(6,1) (3,8)
ElenaW [278]

Answer:

b is the answer

Step-by-step explanation:

6 0
3 years ago
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