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3 years ago

Please help! Question is in picture. If you can answer both questions that’ll be great please & Thank you!! :)

Mathematics

1 answer:

Yakvenalex [24]3 years ago

3 0

Answer:

10:1

Step-by-step explanation:

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Find the volume of the following object

Mars2501 [29]

Answer:

108 units

Step-by-step explanation:

(6x4x9)divided by 2

6 0

2 years ago

If P is the midpoint of XY, XP = 8x - 2 and PY = 12x - 30, find the value of x.

Arlecino [84]

Answer:

x=7

Step-by-step explanation:

If P is the midpoint of XY, then XP = PY:

8x - 2 = 12x - 30
12x -8x = 30 -2
4x = 28
x= 28/4
x= 7

3 0

2 years ago

-2x + 3x - 5 = 6 - 21 FIND x

trasher [3.6K]

Before we do any solving, we need to simplify both sides.

On the left, we can simplify -2x + 3x - 5 to x - 5.

On the right, we can simplify 6 - 21 to -16.

So we have x - 5 = -16.

Solving from here, we add 5 to both sides to get x = -11.

5 0

2 years ago

Limited time . 10 points

AfilCa [17]

Answer:

Therefore the value of x is

$x=1\pm\sqrt{19}i$

Step-by-step explanation:

Given:

$x^{2}+20=2x$ which is

$x^{2}-2x+20=0$

To Find:

x = ? using Quadratic Formula

Solution:

For a Quadratic Equation ax² + bx + c = 0 , Formula Method is given as

$x=\dfrac{-b\pm\sqrt{b^{2}-4ac}}{2a}$

On Comparing with above we get

$a=1\\b=-2\\c=20$

Substituting a , b , c in Formula method we get

$x=\dfrac{-(-2)\pm\sqrt{(-2)^{2}-4(1)(20)}}{2\times 1}\\\\x=\dfrac{2\pm\sqrt{-76}}{2}\\\\x=\dfrac{2\pm2\sqrt{19}i}{2}\\Dividing\ by\ 2\ we\ get\\\\x=1 \pm\sqrt{19}i$

Therefore the value of x is

$x=1\pm\sqrt{19}i$

8 0

3 years ago

Simplify: (2.1 x 10 3) x (2 x 102)

Keith_Richards [23]

Answer:

Step-by-step explanation:

3 0

2 years ago

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