4 years ago

Please answer what is true about the function

Mathematics

1 answer:

sineoko [7]4 years ago

6 0

The answer is the last one. This is because negatives don't work in a square root.

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A. 50<br> B. 65<br> C. 115<br> D. 55

djverab [1.8K]

Answer:

C. 115 degrees

Step-by-step explanation:

Angles 6 and 8 are the same so they both have the same degrees

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3 years ago

In a flight of 600 km, the speed of the aircraft was slowed down due to bad weather. The average speed of the trip was decreased

UkoKoshka [18]

The average speed would be 600 km/hr.

Step-by-step explanation:

Let the original speed be 'x'

Let the decreased speed be 'x-200'

Distance = 600 km

Time increased by 30 minutes

According to question, it becomes,

$\dfrac{600}{x-200}-\dfrac{600}{x}=\dfrac{30}{60}\\\\\dfrac{x-(x-200)}{x^2-200x}=\dfrac{1}{2\times 600}\\\\\dfrac{200}{x^2-200x}=\dfrac{1}{1200}\\\\240000=x^2-200x\\\\x^2-200x-240000=0\\\\x=600,-400$

So, The average speed would be 600 km/hr.

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3 years ago

9.Solve. 5a - 10 = 4a + 8Immersive Reader

aivan3 [116]

5a-10=4a+8

5a-4a=8+10

a=18

3 0

3 years ago

It’s Unit 4 lesson 2 part 1(HSG.C.A.2, HSG.C.A.3) Angle relationships circles Quiz

Alecsey [184]

Answer:

Is it 75

Step-by-step explanation:

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3 years ago

Prove: The sum of two multiples of 3 is a multiple of 3

andrey2020 [161]

Answer:

3 . . . goes in both boxes

Step-by-step explanation:

Use the distributive property. Remove the common factor to outside parentheses:

3(m +n) = a multiple of 3

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3 years ago