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2 years ago

Question above. (BRAINLY WANTS ME TO MAKE THE QUESTION 20 CHARACTERS LONG)

Mathematics

1 answer:

stepladder [879]2 years ago

7 0

Answer:

10. 32 & 37

11. 3 & 4

(っ◔◡◔)っ ♥ Hope It Helps, Please Consider giving Brainliest ♥

(P.S. if you need an explanation just ask in comments)

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If (x - 4) varies inversely as (y + 3) and x = 8 when y = 2, what is x when y = - 1?

denpristay [2]

Answer:

$x=14$

Step-by-step explanation:

If two values are inversely proportional, their product must be maintained. That way, if one value goes up, the other goes down by the same extent.

Therefore, if $(x-4)$ and $(y+3)$ vary inversely, their product will be the same for all values of $x-4$ and $y+3$ .

Let $x=8$ and $y=2$ as given in the problem. Substitute values:

$(8-4)(2+3)=(4)(5)=20$

Hence, the maintained product is $20$ .

Thus, we have the following equation:

$(x-4)(y+3)=20$

Substitute $y=-1$ to find the value of $x$ when $y=-1$ :

$(x-4)(-1+3)=20,\\(x-4)(2)=20,\\x-4=10,\\x=10+4=\boxed{14}$

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2 years ago

Which two integers is square root -21 between?

Pachacha [2.7K]

Answer:

None

Step-by-step explanation:

None. √-21 is not a real number.

7 0

2 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=%283x%5E%7B3%7D%20y%5E%7B2%7D%20z%29%282xy%5E%7B5%7D%20z%5E%7B5%7D" id="TexFormula1" title="(3

castortr0y [4]

<h3 /><h3> $( {3x}^{2} {y}^{2} z) \: ( {2xy}^{5} {z}^{5} ) \\ = 6 {x}^{2} {y}^{2} {xy}^{5} {z}^{6}$ </h3><h3>[ Multiply all digits and variables according to there same value ]</h3>

<em>-</em><em> </em><em>BRAINLIEST</em><em> answerer</em><em> ❤️</em>

8 0

2 years ago

Find the circumference of a circle that has a 25-inch radius. Use 3.14 to approximate π.

Sergio [31]

$\huge \tt \color{pink}{A}\color{blue}{n}\color{red}{s}\color{green}{w}\color{grey}{e}\color{purple}{r }$

$\large\underline{ \boxed{ \sf{✰\:Important\: point's }}}$

➣ Circle:- A two-dimensional geometric figure, a line, consisting of the set of all those points in a plane that are equally distant from a given point (center).
➣ Circumference:- The line that bounds a circle or other two-dimensional figure

${ \rule{70mm}{2.9pt}}$

★ also circumference of a circle is also known as it's perimeter

➣To find circumference of circle when use formula

${ \boxed{✜\underline{ \boxed{ \sf{\: Circumference \: of \: circle= \: 2\pi \: r}}}✜}}$

➢ r = radius (25inch.)
➢ value of π is 3.14

${ \rule{70mm}{2.9pt}}$

$\large\underline{ \boxed{ \sf{✰\: Let's\:solve }}}$

$\sf{➛ \: Circumference \: of \: circle = 2 \times 3.14 \times 25} \\ \sf{➛ \: Circumference \: of \: circle =2 \times 78.5} \\ \sf{➛ \: Circumference \: of \: circle =157inch}$