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SVEN [57.7K]
3 years ago
13

8-3×4.5+-9.2

times 4.5 + - 9.2" alt="8 - 3 \times 4.5 + - 9.2" align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
Vika [28.1K]3 years ago
6 0
The answer is -14.7.
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The equation of a lone is 3/5x + 1/3y = 1/15
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Answer:

Step-by-step explanation:

x intercept is where the line is crossing the x axis or where y=0

y intercept is where the line crosses the y axis or where x=0

to find them, set other ting to zero

3/5x+1/3y=1/15

xintercept, set y=0

3/5x+1/3(0)=1/15

3/5x+0=1/15

3/5x=1/15

times 5/3 both sides

x=1/9

xintercept is x=1/9

yintercet

set x=0

3/5(0)+1/3y=1/15

0+1/3y=1/15

1/3y=1/15

times 3/1 both sides

y=1/5

yintercept is y=1/5

xint is x=1/9

yint is y=1/5

4 0
3 years ago
Write the quadratic equation in standard form -8x+3x^2=-18
stepladder [879]
X = ± √<span>6 </span><span>= ± 2.4495 because i know it</span>
6 0
3 years ago
A swimming pool  20 m long and 10 m wide is surrounded by a deck of uniform width. The total area of the swimming pool and the d
Anna007 [38]
S = 704 \ m^2 \\width \ of \ the \ deck - x \\ \\S=a \cdot b \\ \\ (10+2x)(20+2x) = 704 \\ \\ 200+20x +40x+4x^2-704 =0\\ \\4x^2 +60x -504=0\ \ /:4
 
x^2+15x -126=0\\ \\a=1, \ b=15 , \ c= - 126 \\ \\\Delta =b^2-4ac = 15^2 -4\cdot1\cdot (-126) = 225 +504=729 \\ \\x_{1}=\frac{-b-\sqrt{\Delta} }{2a}=\frac{-15-\sqrt{729}}{2 }=\frac{ -15-27}{2}=\frac{-42}{2}=-21 \ can \ not\ be \ negative \\ \\x_{2}=\frac{-b+\sqrt{\Delta} }{2a}=\frac{-15+\sqrt{729}}{2 }=\frac{ -15+27}{2}= 6 \ m \\ \\ Answer : \   waist \ width  \ is \ 6 \ m


8 0
3 years ago
Read 2 more answers
A cylinder has a radius of 14 m and a height of 7 m. What is the approximate surface area of the cylinder? Use 3.14 for pi
hammer [34]

Answer:

area = 2 π  r 2  + 2 π r h

Step-by-step explanation:

5 0
3 years ago
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What is the missing length
USPshnik [31]
Im not really sure
But hope I still get it
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