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2 years ago

M= 1/2( 3, -4) write in y= mx + b form

Mathematics

2 answers:

hammer [34]2 years ago

3 0

Use 1/2(slope) and -4(y-intercept) y=1/2x+4

solong [7]2 years ago

3 0

Answer:

y= 1/2x - 11/2

Step-by-step explanation:

substitute the coordinates and gradient into y=mx +b to get the value of b...

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Suppose that E and F are two events and that N(E and F)=300 and N(E)=730. What is P(F|E)?

marin [14]

Answer:

$\displaystyle\frac{30}{73}$

Step-by-step explanation:

The formula of conditional probability is:

$\displaystyle P(F|E)=\frac{P(E \cap F)}{P(E)}$

And if we called N(U) the total number of possible outcomes, then remember by definition of probability:

$\displaystyle P(E \cap F)=\frac{N(E \cap F)}{N(U)}\\\displaystyle P(E)=\frac{N(E)}{N(U)}$

Then plugging them into the formula of conditional probability we get:

$\displaystyle P(F|E)=\frac{\frac{N(E \cap F)}{N(U)}}{\frac{N(E)}{N(U)}}$

Then we simplify and we get:

$\displaystyle P(F|E)=\frac{N(E \cap F)}{N(E)}$

We just plug the given info and we get:

$\displaystyle P(F|E)=\frac{300}{730}=\frac{30}{70}$

3 0

3 years ago

Solve for 2a:<br> a + 6 = 3a + 2<br> 2a

rosijanka [135]

Answer:

Break down the problem into these 2 equations.

a+6=3a+2

a+6=2a

Solve the 1st equation: a+6=3a+2a+6=3a+2.

a=2

Solve the 2nd equation: a+6=2aa+6=2a.

a=6

Collect all solutions.

a=2,6

Step-by-step explanation:

6 0

2 years ago

Anybody help me please!!!!!!!!

SCORPION-xisa [38]

Answer:

A reflection over the x-axis

Step-by-step explanation:

7 0

2 years ago

Please please help me on this question

Delvig [45]

-7x^2 - 6x^2 + 3x + 5x - 5 + 2
-13x^2 + 8x - 3

5 0

2 years ago

A triangle with sides lengths of 17, 21, and 10. is this a right triangle?

USPshnik [31]

Use Pythagorean thrm
17^2+10^2=21^2
289+100=441
389≠441
This is not a right triangle

3 0

2 years ago