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Anni [7]
3 years ago
15

The angles in a triangle are such that one angle is 128 more than the smallest angle, while the third angle is 2 times as large

as the smallest angle. Find the measures of all three angles.
Mathematics
2 answers:
stepan [7]3 years ago
7 0

■ Answer:

a = 141°

b = 13°

c = 26°

■ Step-by-step explanation:

a = 128 + b

c = 2b

a + b + c = 128

replace a & c

(128 + b) + b + 2b = 180

4b = 180 - 128

4b = 52

b = 13°

a = 128° + 13° = 141°

c = 2×13° = 26°

8090 [49]3 years ago
5 0

We can write an equation using the information given in the problem.

2x + x + x + 128 = 180

Solve for x.

4x + 128 = 180

4x = 52

x = 13

Second angle:

13 + 128 = 141

Third angle:

13 * 2 = 26

Therefore, the answer is [ 13, 26, and 141 ]

Best of Luck!

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2 years ago
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Snezhnost [94]

Answer:

20 yd^2

Step-by-step explanation:

Your work is partially correct.

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4 0
3 years ago
An economy pack of highlighters contains 12 yellow, 6 blue, 4 green, and 3 orange highlighters. An experiment consists of random
Serhud [2]

Answer:

The probability of choosing a blue or yellow highlighter when one yellow highlighter is picked is 17/25.

Step-by-step explanation:

Here, according to the question:

Total number of yellow highlighters  = 12

Total number of blue  highlighters  = 6

Total number of green highlighters  = 4

Total number of orange  highlighters  = 3

So, the total number of highlighters  =  12 + 6 + 4 + 3  = 25

Let E1 : Event of selecting a yellow highlighter.

P(E1)  = \frac{\textrm{Total number of yellow highlighters}}{\textrm{Total Highlighters}}  = \frac{12}{25}

Let E2 : Event of selecting blue or yellow highlighter ONCE yellow highlighter is selected.

So, the total yellow highlighters left after selecting one = 12 -1  = 11

Also, the number of blue highlighter  =  6

So, the TOTAL FAVORABLE options to E2 = 6+ 11 = 17

P(E2)  =

\frac{\textrm{Total number of yellow  + Blue   highlighters}}{\textrm{Total Highlighters}} = \frac{17}{25}

Hence, the probability that a blue or yellow highlighter is selected given that a yellow highlighter is selected is 17/25.

7 0
3 years ago
28521 to the nearest tenth
ICE Princess25 [194]
28520 is your answer
7 0
3 years ago
What two numbers should you break 10 down to ?
Anton [14]

Answer:

5

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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