1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Harman [31]
3 years ago
12

Please help me on this problem!!!

Mathematics
2 answers:
skelet666 [1.2K]3 years ago
7 0

Answer:

2.79166666667

Step-by-step explanation:

Andrews [41]3 years ago
4 0

Answer:

i suppose that answer is 67/24 or 2.7916

Step-by-step explanation:

if you need to make it fast, u should use sum apps like da "photomath"

You might be interested in
10(2.1q -2) + (7.5q+18)
aliina [53]

Answer:

Simplify the expression.

28.5q−2

Step-by-step explanation:

i think this what you would like

6 0
3 years ago
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
Can somebody please help me. I would really appreciate it
laila [671]
90=6x+3x
90=9x
90/9=x
10=x

3x=3*10=30
6x=6*10=60
hope this helped
4 0
3 years ago
Find sin D sin E cos D and cos E
Andrew [12]

9514 1404 393

Answer:

  sin(D) = cos(E) = (√3)/2

  cos(D) = sin(E) = 1/2

Step-by-step explanation:

The mnemonic SOH CAH TOA is intended to remind you of the relationships between trig functions and right triangle sides.

  Sin = Opposite/Hypotenuse

  Cos = Adjacent/Hypotenuse

For this diagram, this means ...

  sin(D) = cos(E) = (13√3)/26 = (√3)/2

  cos(D) = sin(E) = 13/26 = 1/2

5 0
3 years ago
Triangle ABC is equilateral. Find the height of BD
RideAnS [48]

Since ABC is equilateral, all 3 sides have equal length. side AC is 8 units since side BC is 8 units.

Line BD is placed in the middle, making D the midpoint of side AC.

knowing this information we can determine that the length of DC is 4 units (half of AC)

since triangle BDC is a right triangle, we can use the side lengths in the pythagorean theorem to find the length of BD

a²+b²=c² where a & b = legs of triangle , and c= hypotenuse (longest side)

we are given the hypotenuse and found one leg so we can plug our values into the equation to find the third

4² + b²= 8²

16 + b² = 64

b² = 48

b = \sqrt{48}

b= 4√3 or about 6.928 units

hope this helped

3 0
3 years ago
Other questions:
  • Nick has read the first 56 pages of a 152-page book. He plans to read 12 pages per day until he finishes. Which of these shows t
    8·1 answer
  • How to simplify this algebraic fraction
    13·1 answer
  • 2/3 a−7+7/18 a−5 1/6 =?<br><br> 30 points if you get in right.
    8·1 answer
  • MY LAST QUESTION PLEASE HURRY, SORRY FOR RUSHING BY THE WAY
    5·1 answer
  • Write the expression (3 - 4i) + (5 + 9i) in the standard form a + bi.
    8·1 answer
  • ames bought a movie ticket and wants to pay for some friends. A ticket costs $6, and he has $38. How many friends can he pay for
    10·2 answers
  • A 12-foot ladder leans against the wall makes an angle of 62.87 degrees with the ground. How high up the wall does the ladder re
    5·1 answer
  • Math project: triangle trace / Proyecto de matematicas: trazo de triangulos
    9·1 answer
  • What is the slope of a line that has a y-intercept but no x intercept
    8·1 answer
  • 6. For every 9 customers, the chef prepares 2 loaves of bread.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!