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Kaylis [27]
2 years ago
13

Find ∠BCD A)60 B)20 C)80 D)120

Mathematics
1 answer:
liq [111]2 years ago
3 0

Answer:

  • We know : The exterior angle is equal to the sum of two non-adjacent interior amhles. Set up an equation and solve for x :

\longrightarrow \tt5x + 10 = 3x + 3x

\longrightarrow \tt \: 5x  + 10= 6x

\longrightarrow \tt10 = 6x - 5x

\longrightarrow \tt \: 10 = x

Replacing value :

✯\tt m \:  \angle \: \: BCD = 5 \times 10 + 10 =  \boxed{ \tt{60}}

  • Our Final answer is 60 .

-------------- HappY LearninG <3 -------

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Pls answer the question 12 points I will mark brainliest
vladimir2022 [97]

Answer:

should be 66.4

Step-by-step explanation:

<u>triangular prism:</u>

Using the formulas

AB=s(s﹣a)(s﹣b)(s﹣c)

V=ABh

s=a+b+c

2

Solving forV

V=1

4h﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4=1

4·3·﹣24+2·(2·2)2+2·(2·2)2﹣24+2·(2·2)2﹣24≈5.19615

5.2 · 2 = 10.4

<u>Rectangular prism:</u>

<u>V=whl=2·2·14=56</u>

<u />

<u>10.4+56=66.4</u>

6 0
1 year ago
Read 2 more answers
A function rule takes an input, and converts it into an output, y, by decreasing twice the input by 4. what is the output for th
Harman [31]

Answer:

  • when the input = 4
  • Then the output = 6

Step-by-step explanation:

It is stated that a function rule takes an input, and converts it into an output, y, by decreasing twice the input by 4.

Let 'x' be the number

Decreasing twice the number 'x' by 4 = 2x-4

Now,

Given the input x = 5

As the output will decrease twice the input (x=5) by 4

Thus, the output = 2(5)-4 = 10-4 = 6

Therefore,

  • when the input = 4
  • Then the output = 6
3 0
2 years ago
Please help due in 9 minutes
ad-work [718]

Answer:

1. b, 2. d, 3. c, 4. a.

7 0
2 years ago
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A quadratic equation that can be written as the difference of squares has...
quester [9]

Answer: C two solutions

Step-by-step explanation:  

The Difference of Two Squares theorem says that any time an equation may be written as a difference between squares A² - B² = 0 it may be rewritten as two products, the sum and difference of the square roots (A + B) (A - B)

Hope this helped :)

6 0
2 years ago
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According to a​ report, 67.5​% of murders are committed with a firearm. ​(a) If 200 murders are randomly​ selected, how many wou
kolezko [41]

Answer: The answer is 135 murders.

Step-by-step explanation: The report tells us that statistically 67.5% of murders are committed using a firearm. It follows therefore that in a sample of 200 randomly selected murders, one would expect that 67.5% of those would be by a firearm. \frac{67.5}{100} * 200 = 135.

It would certainly be higher that the expected value based on previous data collected but it would not be unusual because one sample may have a higher than "normal" amount of murders by firearm. Statistics aren't going to be exact for every sample.

8 0
2 years ago
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