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inna [77]
3 years ago
8

Tell me what i did wrong.

Mathematics
2 answers:
ser-zykov [4K]3 years ago
5 0

Answer:

You forgot to post your mistake.

Step-by-step explanation:

Alina [70]3 years ago
3 0
Where is the mistake
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Which addition does this model represent.​
Elina [12.6K]
It represents the first one 3+(-1)
5 0
2 years ago
Faucet A flows at a rate of 100 liters per 5 minutes and Faucet B flows at a rate of 100 liters per 4 minutes into an empty pool
Dmitriy789 [7]

Answer:

It will take both faucets 200 minutes to fill a pool with 9,000 liters of water

Step-by-step explanation:

Here, we want to know the time it will take for both faucets to fill a pool with 9,000 liters of water

What we need here is to have a joint rate for both faucets;

For the first faucet, we have a rate of 100 liters per 5 minutes so this means in a minute;

100/5 = 20 liters per minute

For the second faucet, the per minute rate will be 100/4 = 25 liters per minute

So therefore, the joint rate will be;

25 liters per minute + 20 liters per minute = 45 liters per minute

So the time needed to fill 9,000 liters of water in a pool will be ;

9000 liters/ 45 liters per minute = 200 minutes

8 0
3 years ago
PLEASE EXPLAIN BECAUSE A GIRL IS COMPLETELY LOST HERE
Afina-wow [57]

Hello!


To find the value of b, we need to use the Law of Sines. The law states,

sin A / a = sin B / b = sin C / c.


We are given these values: sin A = 55 degrees, side a = 8 cm, sin C = 82 degrees.


Since angle B is not given, we have to find it ourselves. We can find the measure of angle B by subtracting both the given angle values from 180 degrees because every triangle is equal to 180 degrees.


180 - 55 - 82 = 43 | The measure of sin B = 43 degrees.


sin (55) / 8 = sin (43) / b (multiply both sides by b)

0.10239... · b = 0.68199... (divide both sides by 0.10239...)

c = 6.6607...


The measure of side b is equal to about 6.7 centimeters.

3 0
3 years ago
Read 2 more answers
Out of 28 students in a class, 7 have blue eyes. What is the probability a student picked at random from the class does not have
Jet001 [13]
28 ÷ 7 =4

Your correct answer is 3/4.

If you have questions, ask me.

Glad I could help, and good luck!

AnonymousGiantsFan
4 0
3 years ago
How to determine if a differential equation is linear or nonlinear?
vladimir2022 [97]
You just have to look at the form of the equations

The only linear equations would be y = mx + b and Ax + By = C
4 0
3 years ago
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