3 years ago

Which is the equation in standard form of the line that contains points C and D

Mathematics

1 answer:

bogdanovich [222]3 years ago

3 0

B, 3x-2y=2 in standard form is y=-1-3/-2x.

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Suppose that E and F are two events and that N(E and F)=450 and N(E)=700. What is P(F|E)?

Gennadij [26K]

Answer:i really dont know

Step-by-step explanation:

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2 years ago

Help with 21 would be much appreciated.

umka2103 [35]

Answer:

$\large\boxed{x=2\sqrt{21}\ and\ y=4\sqrt3}$

Step-by-step explanation:

Look at the picture.

ΔADC and ΔCDB are similar. Therefore the sides are in proportion:

$\dfrac{AD}{CD}=\dfrac{CD}{DB}$

We have

$AD=14-8=6\\CD=y\\DB=8$

Substitute:

$\dfrac{6}{y}=\dfrac{y}{8}$ <em>cross multiply</em>

$y^2=(6)(8)$

$y^2=48\to y=\sqrt{48}\\\\y=\sqrt{16\cdot3}\\\\y=\sqrt{16}\ cdot\sqrt3\\\\\boxed{y=4\sqrt3}$

For x use the Pythagorean theorem:

$x^2=6^2+(4\sqrt3)^2\\\\x^2=36+48\\\\x^2=84\to x=\sqrt{84}\\\\x=\sqrt{4\cdot21}\\\\x=\sqrt4\cdot\sqrt{21}\\\\\boxed{x=2\sqrt{21}}$

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3 years ago

What is the absolute value of -5

vladimir2022 [97]

The absolute value of 2 + 7<span> is 5.</span>

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3 years ago

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4 > p - 1

alexdok [17]

Answer:

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I think this is the answer?..

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2 years ago

Find the coordinates of M, the midpoint of A and B where A has the coordinates (-2,6) and B has coordinates (4,9)

irina1246 [14]

Answer:

(1,7.5)

Step-by-step explanation:

(x₁ + x₂ / 2 , y₁ + y₂ / 2)

(-2 + 4 / 2 , 6 + 9 / 2)

(2 / 2 , 15 / 2)

(1,7.5)

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3 years ago