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Anna71 [15]
2 years ago
7

The tree diagram represents an experiment consisting two trials

Mathematics
2 answers:
pashok25 [27]2 years ago
7 0

Answer:

0.35

Step-by-step explanation:

To find the probability of a sequence of events, multiply along the branches representing those events.

Therefore, P(B and D) = 0.5 x 0.7 = 0.35

** refer to the attached diagram **

zavuch27 [327]2 years ago
6 0

Answer:

0.35

Explanation:

  • P ( B and D )
  • 0.5 * 0.7
  • 0.35

<u>Follow the branch B and then branch D</u>

  • multiply both the selected probabilities to calculate total probability.

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Solve for x.<br> 7(1x - 3) = 4(x + 5)
alexandr1967 [171]

Answer:

x = 41/3

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS
  • Equality Properties

Step-by-step explanation:

<u>Step 1: Define equation</u>

7(1x - 3) = 4(x + 5)

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Simplify:                                        7(x - 3) = 4(x + 5)
  2. Distribute:                                     7x - 21 = 4x + 20
  3. Subtract 4x on both sides:          3x - 21 = 20
  4. Add 21 on both sides:                  3x = 41
  5. Divide 3 on both sides:                x = 41/3

<u>Step 3: Check</u>

<em>Plug in x to verify it's a solution.</em>

  1. Substitute:                    7(1(41/3) - 3) = 4(41/3 + 5)
  2. Multiply:                        7(41/3 - 3) = 4(41/3 + 5)
  3. Subtract/Add:               7(32/3) = 4(56/3)
  4. Multiply:                        224/3 = 224/3

Here, we see that 224/3 is indeed equivalent to 224/3. ∴ x = 41/3 is a solution to the equation.

And we have our final answer!

6 0
2 years ago
Find the missing side of the triangle<br> (7 and 14 btw)
jasenka [17]

Answer:

B. 7\sqrt{3}

Step-by-step explanation:

3 0
3 years ago
Johnetta simplified 7/9+ 3/8 her work is shown below. identify where she made an error
Sedbober [7]
She made an error in the STEP 1
she shouldnt multiply the numbers
4 0
3 years ago
20 POINTS! Please help, best answer will recessive brainliest answer points as well as 5 stars and a thank you. :)
valentina_108 [34]

Answer:

(3) Diagonals are perpendicular

Step-by-step explanation:

5 0
2 years ago
Working together, Jacob and Kristin can
Wewaii [24]

Answer:

  15 minutes

Step-by-step explanation:

Their rate together is 1/6 floor per minute.

Her rate alone is 1/10 floor per minute.

His rate is the difference of these:

  1/6 - 1/10 = 5/30 -3/30 = 2/30 = 1/15 . . . . floor per minute

It would take Jacob 15 minutes to do it alone.

6 0
3 years ago
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