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3 years ago

I need help on working this out. Can anyone help me out?

Mathematics

1 answer:

Tasya [4]3 years ago

8 0

Gosh that looks hard. but i wish you the best of luck on it

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Use complete sentences to explain why |x|+2>|x|

Anna007 [38]

The absolute value of an given number is always positive. So, when adding two to any positive number will always be greater than the number by itself.

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4 years ago

EXREAMLY URGENT!! WILL FOREVER THANK YOU!!!! PLS JUST TAKE A LOOK!!!!!

olga55 [171]

Answer:

C. 20 feet

Step-by-step explanation:

The question has given you tan∅ = 20/50. You know that tan is opposite over adjacent. So if the opposite end is 20, that means the tree is 20 feet tall and the girl is <em>50 feet away</em>.

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3 years ago

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It takes Francisco 15 minutes to ride his bike 4 km, which is the distance from home to school. What is his average speed?

Zarrin [17]

<span>It takes francisco 15 minutes to ride his bicycle 4 km, which is the distance from home to school.</span>

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3 years ago

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Figure A is a scale image of Figure B.

Kay [80]

Answer:

Because:

30 is to 25 as x is to 10.

As an equation: 30/25 = x/10

Do this equation by: look at image

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2 years ago

A steamer going downstream traveled the distance between two ports in 3 hours. The return trip took 3 hours 40 minutes. Find the

lapo4ka [179]

Answer:

1.8 mph

Step-by-step explanation:

Speed of the steamer in still water is 18 mph.

Speed of the current = x mph.

1. The steamer going downstream traveled the distance between two ports in 3 hours. Traveling downstream the current "helps" the steamer, then the speed is 18 + x mph.

The distance traveled downstream = 3(18 + x) miles.

2. The steamer going upstream traveled the distance between two ports in 3 hours 40 minutes that is $3\frac{2}{3}$ hours. Traveling upstream the current "interferes" the steamer, then the speed is 18 - x mph.

The distance traveled upstream $3\dfrac{2}{3}(18-x)$ miles.

3. The distances are the same, so

$3(18+x)=3\dfrac{2}{3}(18-x)$

Solve this equation:

$3(18+x)=\dfrac{11}{3}(18-x)\\ \\9(18+x)=11(18-x)\\ \\162+9x=198-11x\\ \\9x+11x=198-162\\ \\20x=36\\ \\x=1.8\ mph$

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3 years ago