I need help with these 2 problems

Write in point slope form of the line that passes through the points (3,-1) and (6,-2)

skelet666 [1.2K]

$\bf (\stackrel{x_1}{3}~,~\stackrel{y_1}{-1})\qquad (\stackrel{x_2}{6}~,~\stackrel{y_2}{-2}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{-2-(-1)}{6-3}\implies \cfrac{-2+1}{3}\implies -\cfrac{1}{3} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-(-1)=-\cfrac{1}{3}(x-3)\implies y+1=-\cfrac{1}{3}(x-3)$

8 0

4 years ago

PLZZZZZZZZZZZZZZZZ HELP ME i begging YOUUUUU !!!!!!!!!!!!!!!!!!!!!!!!!!!

pantera1 [17]

Answer:

-11/20

Step-by-step explanation:

2 8 1

(0-— ÷ (0-—))+—

3 9 5

8

Simplify —

8/9

2 8 1

(0 - — ÷ (0 - —)) + —

3 9 5

Simplify —

2/3

2 -8 1

(0 - — ÷ ——) + —

3 9 5

2 -8

Divide — by ——

3 9

To divide fractions, write the divison as multiplication by the reciprocal of the divisor :

2 -8 2 9

— ÷ —— = — • ——

3 9 3 -8

(0--3/4)+1/5

Least Common Multiple:

20

Left_M = L.C.M / L_Deno = 5

Right_M = L.C.M / R_Deno = 4

3 • 5 + 4 -11

————————— = ———

20 20

-11/20

3 0

3 years ago

Read 2 more answers

A student took 60 minutes to answer a combination of 20 multiple choice and extended response choice questions she took two minu

frez [133]

The average rate of change of g(x) between x = 4 and x = 7 is . Which statement must be true?

4 0

3 years ago

Read 2 more answers

The options are -63/16, -61/16,-59/16, -31/8, -15/4, -29/8

SSSSS [86.1K]

Answer:

-31/8. That's the answer to your question

3 0

3 years ago

You want to go to graduate school, so you ask your math professor, Dr. Emmy Noether, for a letter of recommendation. You estimat

den301095 [7]

Answer:

a

$P(G) = 0.69$

b

$P(S | G) = 0.81$

c

$P(M|G') = 0.26$

Step-by-step explanation:

From the question we are told the

The probability of getting into getting into graduated school if you receive a strong recommendation is $P(G |S) = 0.80$

The probability of getting into getting into graduated school if you receive a moderately good recommendation is $P(G| M) = 0.60$

The probability of getting into getting into graduated school if you receive a weak recommendation is $P(G|W) = 0.05$

The probability of getting a strong recommendation is $P(S) = 0.7$

The probability of receiving a moderately good recommendation is $P(M) = 0.2$

The probability of receiving a weak recommendation is $P(W) = 0.1$

Generally the probability that you will get into a graduate program is mathematically represented as

$P(G) = P(S) * P(G|S) + P(M) * P(G|M) + P(W) * P(G|W)$

=> $P(G) = 0.7 * 0.8 + 0.2 * 0.6 + 0.1 * 0.05$

=> $P(G) = 0.69$

Generally given that you did receive an offer to attend a graduate program, what is the probability that you received a strong recommendation is mathematically represented as

$P( S|G) = \frac{ P(S) * P(G|S)}{ P(G)}$

=> $P(S|G) = \frac{ 0.7 * 0.8 }{0.69}$

=> $P(S | G) = 0.81$

Generally given that you didn't receive an offer to attend a graduate program the probability that you received a moderately good recommendation is mathematically represented as

$P(M|G') = \frac{ P(M) * (1- P(G|M))}{(1 - P(G))}$

$P(M| G') = \frac{ 0.2 * (1- 0.6)}{ (1 - 0.69)}$

$P(M|G') = 0.26$

3 0

3 years ago