2 years ago

PLS HELP PLS I REALLY NEED IT!!

Mathematics

2 answers:

Aleksandr [31]2 years ago

6 0

Answer:

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frutty [35]2 years ago

3 0

Answer:

Step-by-step explanation:

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3 + (-3)^2 - (9 +7)^0

MatroZZZ [7]

Answer:

Step-by-step explanation:

3+(−3)^2−(9+7)^0

=3+9−(9+7)^0

=12−(9+7)^0

=12−16^0

=12−1

=11

any number to the power of 0 is ALWAYS 1

3 0

3 years ago

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A cup of hot coffee has been left to cool in a room with an ambient temperature of 21°C.

ch4aika [34]

Answer:

The temperature of the coffee after 10 minutes will be 21.27°C.

Step-by-step explanation:

The equation representing the elapsed time, <em>m</em>, in minutes, since the coffee was left to cool, and the temperature of the coffee, <em>T</em>, measured in °C is:

$T(m)=21+74.10^{-0.03 m}$

Compute the temperature of the coffee after 10 minutes as follows:

$T(10)=21+74.10^{-0.03 \times 10}$

$=21+0.274824\\=21.274824\\\approx 21.27^{o}\ C$

Thus, the temperature of the coffee after 10 minutes will be 21.27°C.

4 0

3 years ago

Need answer please!!!!!!!

ozzi

Answer:

Step-by-step explanation:

A=P(1+r/n)^nt

A=56057(1+((0.095)/4))^(4)2.5

A=$138922.0053

3 0

2 years ago

How to simplify 2(3-4a)+5(a-7)

Aleks [24]

Answer:

2(3-4a)+5(a-7)

=6-8a+5a-35

=-3a-29

Step-by-step explanation:

3 0

3 years ago

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Is 55000 mg greater than, less than, or equal to 2 kg?

seraphim [82]

1 kg = 1,000,000 mg

55,000 mg = 55,000/1,000,000 = 0.055 kg

0.055 kg < 2 kg

so 55,000 mg < 2 kg

5 0

3 years ago

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