Ask question

Ask question

All categories

3 years ago

14

Please If you can see if you can help on some of my questions!!!!

1 answer:

kvv77 [185]3 years ago

6 0

PQ // BC

then

Angle P = Angle B, A is common angle the two triangles are similar

AP/AB = AQ/AC

8/18 = 12/ AC

AC = 12 * 18/8 = 27 (your ans: D)

AQ + QC = AC

QC = AC - AQ = 27 - 12 = 15 (if it was required)

tan60 = y/8

y = s tan60 = 8sqrt(3) (B)

Next time, post each question separately.

You might be interested in

How many edges does the figure have?

abruzzese [7]

Answer: 4

Step-by-step explanation:

6 0

3 years ago

Suppose you had d dollars in your bank account. You spent $6 but have at least $25 left. How much money did you have initially?

Eddi Din [679]

d-6≥25

d-6+6≥25+6

d≥31

7 0

3 years ago

How many solutions does 23 + 4x = 4x - 9 have?

77julia77 [94]

A lotttttttttttttttttt

4 0

3 years ago

Read 2 more answers

Solve for W. MUST SHOW WORK!!<br> -3W +27 = 6

Travka [436]

Answer:

W=7

Step-by-step explanation:

-3W+27=6

Subtract 27 from both sides to isolate the variable.

-3W=-21

Divide by -3 to solve for W

w=7

3 0

3 years ago

Read 2 more answers

Yahoo creates a test to classify emails as spam or not spam based on the contained words. This test accurately identifies spam (

Amiraneli [1.4K]

Answer and Step-by-step explanation:

The computation is shown below:

Let us assume that

Spam Email be S

And, test spam positive be T

Given that

P(S) = 0.3

$P(\frac{T}{S}) = 0.95$

$P(\frac{T}{S^c}) = 0.05$

Now based on the above information, the probabilities are as follows

i. P(Spam Email) is

= P(S)

= 0.3

$P(S^c) = 1 - P(S)$

= 1 - 0.3

= 0.7

ii. $P(\frac{S}{T}) = \frac{P(S\cap\ T}{P(T)}$

$= \frac{P(\frac{T}{S}) . P(S) }{P(\frac{T}{S}) . P(S) + P(\frac{T}{S^c}) . P(S^c) }$

$= \frac{0.95 \times 0.3}{0.95 \times 0.3 + 0.05 \times 0.7}$

= 0.8906

iii. $P(\frac{S}{T^c}) = \frac{P(S\cap\ T^c}{P(T^c)}$

$= \frac{P(\frac{T^c}{S}) . P(S) }{P(\frac{T^c}{S}) . P(S) + P(\frac{T^c}{S^c}) . P(S^c) }$

$= \frac{(1 - 0.95)\times 0.3}{ (1 -0.95)0.95 \times 0.3 + (1 - 0.05) \times 0.7}$

= 0.0221

We simply applied the above formulas so that the each part could come

8 0

3 years ago