Answer to get 20 points and brainleiest

Mathematics

2 answers:

ddd [48]2 years ago

8 0

Answer:

x=10/7

Step-by-step explanation:

dalvyx [7]2 years ago

7 0

Answer:

last anwer beacuse it 10 divided by 7 equal 10/7

Step-by-step explanation:

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A stadium floor there is in the shape of a circle has a diameter with a length of 50 yards what is the area of the circle on the

Bogdan [553]

For this you need the formula for a circle:
A=πr2 (pi r squared)

You know the diameter is 50 yards, so the radius will be half of the diameter.

A=π(25) squared
A=(3.14159)(25) squared
(remember to square before you multiply - order of operations)
A=(3.14159)(25*25)
A=(3.14159)(625)A=1963 yards

Hope this helps! :)

3 0

3 years ago

2y ( x-y) +12=5x where x=3

tamaranim1 [39]

EXPLANATION

Given the expression 2y(x-y) +12=5x , plugging in x=3 into the expression,

2y(3-y) + 12 = 5*3

6y -2y^2 + 12 = 15

Rearranging terms:

$-2y^2+6y+12=15$

Now, we need to apply the quadratic equation:

$\mathrm{For\: a\: quadratic\: equation\: of\: the\: form\: }ax^2+bx+c=0\mathrm{\: the\: solutions\: are\: }$ $x_{1,\: 2}=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$ $\mathrm{For\: }\quad a=-2,\: b=6,\: c=-3$ $y_{1,2}=\frac{-6\pm\sqrt{6^2-4\left(-2\right)\left(-3\right)}}{2\left(-2\right)}$

Multiplying terms: