2 years ago

Which postulate proves these triangles are similar? (giving brainliest and thanks to all!)

Mathematics

1 answer:

Jet001 [13]2 years ago

6 0

It’s SAS. Hope I helped sorry if I got it wrong

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A sphere has a diameter of 15 inches.

s344n2d4d5 [400]

Your answer is d.14,230.0in^3

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3 years ago

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Solve for x.

Ivahew [28]

ANSWER

$x=\frac{2-\sqrt{10}} {3}$

or

$x=\frac{\sqrt{10}+2} {3}$

We have

$3x^2-4x-2=0$

Since we cannot factor easily, we complete the square.

Adding 2 to both sides give,

$3x^2-4x=2$

Dividing through by 3 gives

$x^2-\frac{4}{3}x= \frac{2}{3}$

Adding $(-\frac{2}{3})^2$ to both sides gives

$x^2-\frac{4}{3}x+(-\frac{2}{3})^2= \frac{2}{3}+(-\frac{2}{3})^2$

The expression on the Left Hand side is a perfect square.

$(x-\frac{2}{3})^2= \frac{2}{3}+\frac{4}{9}$

$\Rightarrow (x-\frac{2}{3})^2= \frac{10}{9}$

$\Rightarrow (x-\frac{2}{3})=\pm \sqrt{\frac{10}{9}}$

$\Rightarrow (x)=\frac{2}{3} \pm {\frac{\sqrt{10}}{3}$

Splitting the plus or minus sign gives

$x=\frac{2- \sqrt{10}} {3}$

or

$x=\frac{\sqrt{10}+2} {3}$

3 0

3 years ago

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Which of the following is equivalent to the equation -5(3x -8 )= -45 ?

Elan Coil [88]

Distributive property is
a(b+c)=ab+ac so
first, distribute
remember than (-) times (-)=(+)
-5(3x-8)=(-5)(3x)+(-5)(-8)=-15x+(+40)=-15x+40

so it is -15x+40=-45

the answe ris B

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3 years ago

576 bottles of water at the snack shop people bought 469 bottles of water how many bottles of water are there now

Vedmedyk [2.9K]

Subtract 469 from 576
576
-469
--------
107

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3 years ago

The 7 in 507.3 has ten times the value of the 7 in?<br> Is it 12.007, 725, 67 or 30.76.

defon

I believe the answer would be 30.76

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3 years ago