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Leokris [45]
2 years ago
7

2x+10=12so x=??

e="\huge \dag \sf{Help \: me}" alt="\huge \dag \sf{Help \: me}" align="absmiddle" class="latex-formula">​​
Mathematics
2 answers:
almond37 [142]2 years ago
4 0

Answer:

\boxed {\sf x=1}

Step-by-step explanation:

\sf 2x+10=12

\boxed{\mathrm{Subtract\:}10\mathrm{\:from\:both\:sides}}

  • \sf 2x+10-10=12-10
  • \sf 2x=2

\boxed{\mathrm{Divide\:both\:sides\:by\:}2}

  • \sf \cfrac{2x}{2}=\cfrac{2}{2}
  • \sf x=1

\boxed{\sf Hope\: it\:helps!}

IRINA_888 [86]2 years ago
3 0

Answer:

\sf\longmapsto\sf\boxed {x = 1}

Step-by-step explanation:

\sf\longmapsto \: 2x + 10 = 12

\sf\longmapsto \:  \: 2x + 10 - 10 = 12 - 10

\sf\longmapsto \: 2x = 2

\sf\longmapsto \:  \frac{2x}{2}  =  \frac{2}{2}

\sf\longmapsto \: x = 1

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What is the equation of the graph below?
IgorC [24]
ANSWER

f(x) = (x  +  3)^{2}  - 1



EXPLANATION

The vertex of the graph is at


(-3,-1)


The equation of the graph in vertex form is given by the formula,



f(x) =  a{(x - h)}^{2}  + k


The above graph has a minimum point, hence
a >  \: 0

When we put these values into the equation we obtain,

f(x) = a(x -  - 3)^{2}   +  - 1


This implies that,

f(x) = a(x  +  3)^{2} - 1

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The correct answer is D.
6 0
3 years ago
4) A window is in the form of a rectangle surmounted by a semicircle. The rectangle is of clear glass, whereas the semicircle is
lisov135 [29]

Answer:

l=0.1401P\\

w =0.2801P

where P = perimeter

Step-by-step explanation:

Given that a window is in the form of a rectangle surmounted by a semicircle.

Perimeter of window =2l+\pid/2+w

P= 2l+3.14 (w/2)+w

Or P = 2l+2.57w\\l = \frac{P-2.57w}{2}

To allow maximum light we must have maximum area

Area = area of rectangle + area of semi circle where rectangle width = diameter of semi circle

A=lw +\pi \frac{w^2}{8}

A=lw +\pi \frac{w^2}{8}\\A=w*\frac{P-2.57w}{2}+0.3925w^2\\2A= Pw-2.57w^2+(0.785w^2)\\2A' = P-5.14w+1.57 w\\2A" =-5.14+1.57

Hence we get maximum area when i derivative is 0

i.e. P-5.14w+1.57 w=0\\3.57w =P\\w = \frac{P}{3.57} =0.2801P

l = \frac{P-2.57w}{2}\\l = 0.1401P

Dimensions can be

l=0.1401P\\w =0.2801P

5 0
3 years ago
What is 5/20 in its simplest form
notsponge [240]
5/20 in simplest form 

1) 5/20 can be divided by 5 

5 ÷ 5 = 1 
20 ÷ 5 = 4 

It cant be divided any more 

5/20 in simplest form is 1/4 
7 0
3 years ago
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