Solve the linear system ALGEBRAICALLY. Show All Steps for solving! y=x2-4x-1 x+y=-3

Mathematics

1 answer:

Galina-37 [17]3 years ago

3 0

the answer is go on math///way. take out the slashes.

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The radius of a sphere is 7 meters what is the circle's area

Pie

★ Given :

$\begin{lgathered}\bullet\:\:\textsf{Radius of circle = \textbf{7 meter}}\end{lgathered}$

$\rule{130}1$

★ Digram :

$\setlength{\unitlength}{1mm}\begin{picture}(50,55)\thicklines\qbezier(25.000,10.000)(33.284,10.000)(39.142,15.858)\qbezier(39.142,15.858)(45.000,21.716)(45.000,30.000)\qbezier(45.000,30.000)(45.000,38.284)(39.142,44.142)\qbezier(39.142,44.142)(33.284,50.000)(25.000,50.000)\qbezier(25.000,50.000)(16.716,50.000)(10.858,44.142)\qbezier(10.858,44.142)( 5.000,38.284)( 5.000,30.000)\qbezier( 5.000,30.000)( 5.000,21.716)(10.858,15.858)\qbezier(10.858,15.858)(16.716,10.000)(25.000,10.000)\put(25,30){\line(5,0){20}}\put(25,30){\circle*{1}}\put(29,26){\sf\large{7 m}}\end{picture}$

$\rule{130}1$

★ Solution :

☯ $\underline{\boldsymbol{According\: to \:the\: Question\:now :}}$

$:\implies\sf Area\:of\:circle = \pi r^2 \\\\\\:\implies\sf Area\:of\:circle = \dfrac{22}{\cancel{7}} \times \cancel{7} \times 7\\\\\\:\implies\sf Area\:of\:circle = 22 \times 7\\\\\\:\implies\sf Area\:of\:circle = 154 m^{2}$

⠀

$\therefore\:\underline{\textsf{Area of circle is \textbf{154}} \:\sf{m^2}}.$

$\rule{170}{2}$

7 0

3 years ago

Can i please get some help here its math

LiRa [457]

X is 9

12x + 17 = -1 + 14x
18 = 2x
x = 9

7 0

3 years ago

Read 2 more answers

Plz help with this question I don’t get it is an image

mars1129 [50]

Answer:

Step-by-step explanation:

For this question, we know that x represents the thousands of square feet in the stadium. We also know that the stadium is 18 thousand square feet. Therefore, the amount of thousands of square feet, or x, is 18. We can then plug 18 in for x in the equation, getting

$C(x) = \frac{7250000}{18+60} \\= \frac{7250000}{78}\\= 92948$