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3 years ago

Question 1

Mathematics

1 answer:

crimeas [40]3 years ago

7 0

The Answer is:

“X= 1”

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Which graph is the solution to the system y > 2x – 3 and y < 2x + 4?

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Answer: The region between the two parallel lines y=2x-3 and y=2x+4

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3 years ago

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Two scuba divers, Jim and Tara, are 20m apart below the surface of the water. They both spot a shark that is below them. The ang

LenaWriter [7]

Answer:

Jim is 12.87 meters away from the shark.

Step-by-step explanation:

We are given that,

Distance between Jim and Tara = 20 meters.

The angle of depression of the shark from Jim and Tara is 47° and 40° respectively as shown in the figure below.

So, the third angle of the triangle formed is given by,

47° + 40° + ∠S = 180°

i.e. ∠S = 180° - 87°

i.e. ∠S =93°

So, now using the sine ratio formula, we have,

$\frac{20}{\sin 93}=\frac{x}{\sin 40}$

i.e. $x=\frac{20\times 0.6428}{0.9986}$

i.e. $x=\frac{12.856}{0.9986}$

i.e. x = 12.87 meters

Thus, Jim is 12.87 meters away from the shark.

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3 years ago

100,000+4,000+800+5 in standard form.

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Answer:

104,805 i think

Step-by-step explanation:

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7. As you consider your decision, you think about how most cars lose value over time. If a fully loaded Volkswagen Beetle deprec

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3 years ago

Find a three digit number. The tens digit is 3 time the hundreds digit. The sum of the digits is 15. If you reverse the digits,

tresset_1 [31]

Answer:

number = 267

Step-by-step explanation:

i am a 3 digit number divisible by 3.

100a + 10b + c

my tens digit is 3 times as great as my hundreds digit

b = 3a, from this we know a = 1, 2, 3, then b = 3, 6, 9

and the sum of my digits is 15.

a + b + c = 15

if you reverse my digits i am divisible by 6 and 3

100c + 10b + a

this is a logic problem, an equation won't help us here

From the given information b = 3a, and the sum of the 3 digits = 15, we have:

1 3 ___; three single digits can't add up to 15

2 6 _7_; this has to be the number

3 9 _3_; reverse number is not different

Check for division by 3 and 6

267/3 = 89

762/6 = 127

267 is the number

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3 years ago