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anygoal [31]
2 years ago
15

Can someone please help me I don’t know how to do this (Due today)

Mathematics
1 answer:
Inessa05 [86]2 years ago
7 0

Answer:

The answers are in the photo taken

Step-by-step explanation:

Pls mark as brainlest

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Solve the system using elimination. *<br> 2x + 3y = - 10<br> -4x + 5y = -2<br> Your answer
sesenic [268]

Answer:

2x + 3y=-10 is incorrect (I think)

When you mulitply something with no negative you get something with no negative

Hope this helps :)

I AM HERE TO HELP >:D

8 0
3 years ago
What is 0.7 subtract 3 ​
Irina18 [472]

Answer:

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Step-by-step explanation:

5 0
2 years ago
Suppose compact fluorescent light bulbs last, on average, 11,500 hours. The distribution is normal and the standard deviation is
juin [17]

Answer:

2.275%

Step-by-step explanation:

The first thing to do here is to calculate the z-score

Mathematically;

z-score = (x-mean)/SD

from the question, x = 12,300 hours , mean = 11,500 hours while Standard deviation(SD) = 400 hours

Plugging the values we have;

z-score = (12,300-11,500)/400 = 800/400 = 2

Now, we want to calculate P(z ≤ 2)

This is so because we are calculating within a particular value

To calculate this, we use the z-score table.

Mathematically;

P(z ≤ 2) = 1 - P(z > 2) = 1 - 0.97725 = 0.02275

To percentage = 2.275%

6 0
3 years ago
(Give Brainliest)need ASAP
cupoosta [38]

Answer:

the answer is 1/2

Step-by-step explanation:

Mean is add up all the numbers and divide by how many numbers there is, so -(2+5-10+15)/4, which is 2/4 or 1/2 plz mark brainliest hope this helps

3 0
3 years ago
Jerome burned 75 calories in 15 minutes on a stationary bike. How many calories will he burn in 25 minutes
aalyn [17]
Is jerome also on stationary bicycle for next 10 minute?? if yes then he burn 125 calories at the average of 5 calorie per minute

7 0
3 years ago
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