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butalik [34]
3 years ago
13

If y = 4x - 2, find y if x = -1.

Mathematics
2 answers:
NARA [144]3 years ago
7 0
4(-1)-2 = -4-2 = -6 i hope this help
mezya [45]3 years ago
7 0
Just substitute the value given for x in the function

y  = (-1) * 4 - 2 = -4 - 2= -6 
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What is<br> -3/4 + 2 3/4
Fittoniya [83]

Answer:

2

Step-by-step explanation:

ok so let's start

were starting off with -3/4 and were adding 2 3/4 to that and it's equal to 2 3/4 subtract 3/4

-3/4 + 2 3/4 = 2 3/4 - 3/4

2 3/4 - 3/4 = 2

-3/4 + 2 3/4 = 2

it's 2 my dude or girl i don't know

3 0
3 years ago
4 times as much as 3 is blank
NeX [460]

Answer:

12

Step-by-step explanation:

4 times 3 is 12.

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5 0
3 years ago
1. How much heat is absorbed by a 50g iron skillet when its temperature rises from 10oC to 124oC? Joules
hoa [83]
<span>1. How much heat is absorbed by a 50g iron skillet when its temperature rises from 10oC to 124oC? Joules

Formula: Heat = mass * specific heat * ΔT

Data:
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2. If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the refrigerator if it released 492J of energy to the room? Joules

The firs law of thermodynamics is conservation of energy => energy removed from inside of the refrigerator = energy released to the room

=> Answer = 492 J

3. How much heat is needed to raise the temperature of 45g of water by 63oC? Joules

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specific heat of water = 4186 J / Kg °C

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</span>
7 0
3 years ago
20% of 34.69 (show work) (will give brainliest)
Delicious77 [7]
6.938
Discount = Original Price x Discount %/100
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5 0
3 years ago
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Delvig [45]

Answer:

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5 0
2 years ago
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