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gogolik [260]
3 years ago
8

I'm confused I need help anyone

Mathematics
1 answer:
noname [10]3 years ago
6 0
57-----------------------
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Please answer and put the expanation in to be marked branliest. Thank you!!
boyakko [2]

Answer:

Step-by-step explanation:

P (     )

Exponent

Mutilpy

Divide

Add

Subtract

7 0
3 years ago
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A six-sided number cube is rolled. Find the probability of rolling a 3 or a number greater than 4. A. 1/18 B. 1/6 C. 1/2 D. 2/3
ale4655 [162]
The answer is C.1/2 because there is only possible numbers are 3,5,6.
3 0
3 years ago
Triangle abc is such that ab=4 and ac=8 if m is the midpoint of bc and am=3, what is the length of bc?
zavuch27 [327]
This is an interesting question. I chose to tackle it using the Law of Cosines.
  AC² = AB² + BC² - 2·AB·BC·cos(B)
  AM² = AB² + MB² - 2·AB·MB·cos(B)
Subtracting twice the second equation from the first, we have
  AC² - 2·AM² = -AB² + BC² - 2·MB²

We know that MB = BC/2. When we substitute the given information, we have
  8² - 2·3² = -4² + BC² - BC²/2
  124 = BC² . . . . . . . . . . . . . . . . . . add 16, multiply by 2
  2√31 = BC ≈ 11.1355

4 0
3 years ago
I need #8 done (Show work) will mark brainliest
Fittoniya [83]

Answer:

see explanation

Step-by-step explanation:

Since BD bisects ∠ ABC , then

∠ ABD = ∠ DBC , substitute values

3x + 4 = 55 ( subtract 4 from both sides )

3x = 51 ( divide both sides by 3 )

x = 17

3 0
2 years ago
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If B is the midpoint of AC and AB = 4x + 14 and BC = x + 20, determine how long AC is.
Serhud [2]

Answer:

44 units

Step-by-step explanation:

Since B is the mid-point of AC

AB=BC

or,4x+14=x+20

or, 4x-x=20-14

or 3x=6

or,x=6/3=2

AC=AB+BC

= 4x+14+x+20

= 4(2) + 14 +2 +20

= 8+14+22

=44 units

5 0
3 years ago
Read 2 more answers
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