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2 years ago

BRAINLIEST TO BEST ANSWER :D

Mathematics

2 answers:

Temka [501]2 years ago

7 0

Answer:

Step-by-step explanation:

Liula [17]2 years ago

6 0

Answer:hope this helps!!! :)

defenitly A it equals x-6 not x-3

3(x - 6) + (4x + 12) - 6x => − 6

Step-by-step explanation:

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What is the best approximation of the length of segment QS? (Note: cos 80° = 0.17)

matrenka [14]

Answer: $QS=11.8cm$

Step-by-step explanation:

1. You have the following information:

- The lenght of $RS$ is 2 centimeters.

- The angle m∠S=80°.

- Cos80°=0.17

2. Therefore, you can calculate the lenght of the segment $QS$ as following:

$cos80=\frac{adjacent}{hypotenuse}$

$adjacent=2cm\\hypotenuse=QS\\cos80=0.17$

3. Substitute values and solve for $QS$ :

$0.17=\frac{2cm}{QS}\\QS=\frac{2cm}{0.17} \\QS=11.76cm$

4. To the nearest tenth:

$QS=11.8cm$

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3 years ago

Calculate the size of a cube

Varvara68 [4.7K]

Answer:

A cube size is 150mm

Step-by-step explanation:

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3 years ago

If x = 12 and y = 3, what is the value of the following expression?

Natasha_Volkova [10]

Answer:

A: 19

Step-by-step explanation:

x-8+5y

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12-8+15

4+15

I hope this helps

6 0

2 years ago

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Elanso [62]

The explanation is on the board just tell me if you have questions

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3 years ago

Factor 26r3s + 52r5 – 39r2s4. What is the resulting expression?

zheka24 [161]

Answer:

The Given Expression is

→ $26r^3s + 52r^5 -39r^2s^4\\13\times 2\times r\times r^2 \times s + 13\times 2\times 2\times r^2\times r^2\times r- 13 \times 3\times r^2\times s \times s^3\\\\\text{Taking out common factors}\\\\13r^2(2 rs + 2\times 2 r^3 -3 s^4)\\\\13r^2(2 r s+ 4 r^3 - 3 s^4)$

Option $13r^2(2 rs + 4 r^3 - 3 s^4)$ is correct option.

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3 years ago

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