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lorasvet [3.4K]
3 years ago
13

Help me answer these questions please​

Mathematics
1 answer:
Wewaii [24]3 years ago
7 0
You plug in x for 3 so it would be 10(3) + 2, and 10 times 3 is 30 and 30 plus 2 is 32
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At the beginning of an experiment, there are 600 grams of contaminants. Each hour, half of the contaminants are filtered out. Ho
myrzilka [38]
The amount of contaminants left is 37.5 grams, because using the decay formula, in this case, you use the equation 600(1/2)^4, getting 37.5.
Answer: 37.5
8 0
3 years ago
Solve using substitution x=-6 6x+10y=14
Mrrafil [7]

Answer:

(-6 , 5)

Step-by-step explanation:

6x + 10y = 14

6(-6) + 10y = 14

-36 + 10y = 14

10y = 50

y = 5

5 0
3 years ago
X³+y³+z³=k <br> If u get a right answer its going to be marked brainliest
scoray [572]

Answer:

x3+y3+z3

Step-by-step explanation:

hope it helps

5 0
3 years ago
Factorise 4p + 6pq <br><br>step by step<br><br>answer fully please, thank you.​
Lady bird [3.3K]

Answer:

2p(2+3q)

Step-by-step explanation:

Find the Greatest Common Factor (GCF).

GCF = 2p2p

Factor out the GCF. (Write the GCF first. Then, in parentheses, divide each term by the GCF.)

2p(4p/2p + 6qp/2p)

simplify each term in parentheses.

2p(2+3q)

​

4 0
3 years ago
Read 2 more answers
Which equation has infinitely many solutions?
Verdich [7]

Answer:

The second option (5x+14-4x=23+x-9)

Step-by-step explanation:

For an equation to have infinitely many solutions each side must be exactly the same when simplified.

12+4x=6x+10-2x

Combine alike terms.

12+4x=4x+10

Subtract 4x from each side

12=10

This is not true so this equation has no solutions.

5x+14-4x=23+x-9

Combine alike terms

x+14=14+x

subtract x from each side

14=14

This is true so this equation has infinitely many solutions.

Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!

5 0
3 years ago
Read 2 more answers
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