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katen-ka-za [31]
3 years ago
13

Pleaseeeeee helpppppppp i will mark brainlest

Mathematics
2 answers:
OlgaM077 [116]3 years ago
8 0

Answer:

b

Step-by-step explanation:

The sum of angles in a triangle is 180°. Therefore,

x - 11 + 48 + 90 = 180

x + 127 = 180

x = 53°

RideAnS [48]3 years ago
8 0

Answer:

x = 53

Step-by-step explanation:

Using the information that angles in a triangle add up to 180°, we can set up and equation to find the value of x

⇒ Use the information that angles in a triangle add up to 180°, form an equation

→ x - 11 + 48 + 90 = 180

⇒ Simplify

→ x + 127 = 180

⇒ Minus 127 from both sides to isolate x

→ x = 53

We can substitute the value of x back into x - 11 + 48 + 90 = 180 to see if our value of x is correct, if we end up on 180 on both sides then the value of x is correct

→ x - 11 + 48 + 90 = 180

⇒ Substitute in the value of x

→ 53 - 11 + 48 + 90 = 180

⇒ Simplify

→ 180 = 180

This means that x = 53 is correct

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Answer:

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Step-by-step explanation:

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Given that, the person travels at a speed equal to 90% of the light speed.

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3 years ago
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asambeis [7]

Answer:

424 cm²

Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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