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statuscvo [17]
3 years ago
9

I got 7. check my answer please :)

Mathematics
2 answers:
USPshnik [31]3 years ago
6 0

Answer:

7

Step-by-step explanation:

We look at where the two circles for Russian and Chinese overlap

The numbers in that area are 2 and 5

2+5 = 7

strojnjashka [21]3 years ago
6 0

Answer:

Your answer is correct.

Step-by-step explanation:

5 speak Chinese and Russian, but 2 speak all languages

So add 5+2 to get 7.

So your answer is correct.

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3 years ago
Use the quadratic formula to solve the equation. -2x^2-x+7=0.
Furkat [3]
<span>-2x^2-x+7=0  
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8 0
3 years ago
A submarine traveling 200 meters below the surface of the ocean increases its depth by 45 meters. Adam says that the new locatio
My name is Ann [436]

Answer:

The error that Adam could have made is added 45 to the depth of

submarine instead of adding -45

Step-by-step explanation:

* Lets explain how to solve the problem

- A submarine traveling 200 meters below the surface of the ocean

- Increases its depth by 45 meters

- Adam says that the new location of the submarine is -155 meters

- We need to know the error of Adam

∵ We consider the surface of the ocean is the zero level

∵ The submarine is 200 meters below the surface of the ocean

∵ Below means negative

∴ The depth of submarine is -200 meters

∵ It increases the depth by 45 meters

- <em>That means it travels down another 45 meters</em>

∵ Down means negative

∴ The depth of submarine = -200 + (-45) = -245 meters

∴ The depth of submarine is 245 below the surface of the ocean

- Adam could thought that the submarine traveled up for 45 meters

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∵ -200 + 45 = -155 meters

∴ The error that Adam could have made is added 45 to the

   depth of submarine instead of adding -45

3 0
3 years ago
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