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Ivanshal [37]
3 years ago
9

I don't understand which one I'll give brainiest​

Mathematics
2 answers:
garri49 [273]3 years ago
6 0

Answer:

Step-by-step explanation:

The answer should be the one on the top

olga55 [171]3 years ago
3 0

Answer:

remember a tip, negetive and positive is a negative number, and a negative and a negative is a positive number

Step-by-step explanation:

Hope this helps :D

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Barbara bought items for $7.50, $8.25, and $6.15. She gave the clerk $30.00. How much was her change?
aleksley [76]

Answer:

$8.10

Step-by-step explanation:

yes

5 0
3 years ago
9. Hue wants to buy two necklaces, one for
pishuonlain [190]

Answer:

$71.59

Step-by-step explanation:

43.25+26.25

=69.5

69.5*\frac{103}{100}

69.5*1.03

=71.585

8 0
3 years ago
WILL MARK BRAINLIEST!! PLEASE HELP!!
Sladkaya [172]

Answer: 12.1 years

Step-by-step explanation:

youd find 2.2% of 3000 which is 66 and then divide 800 by 66 to see how many years it would take to make 800 interest and you get 12.1 years. 90% sure on that answer btw

5 0
3 years ago
F(t)= 102,000/1+4400e^-t
AnnZ [28]

Answer:

Beginning (t=0) population with flu is 23.

After 4 weeks, population with flu is 1250.

After an infinite amount of weeks, the population witf flu is 102000

Step-by-step explanation:

First question asks you to replace t with 0 because it says beginning.

102000/(1+4400e^-0)=102000/(1+4400)=102000/4401=23.17655 approximately. To nearest whole number this is 23.

After 4 weeks means we replace t with 4:

102000/(1+4400e^-4)

Calculator time:

1250.17142 which to nearest whole number is 1250

If t is super large, then e^-t is super close to 0.

So the limiting number is

102000/(1+4400×0)=102000/1=102000

8 0
3 years ago
Solve the equation using square roots. round your solutions to the nearest hundredth. 5x^2+2=6
JulsSmile [24]
X = 0.89
x = -0.89
two solutions
6 0
3 years ago
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