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katrin2010 [14]
3 years ago
11

Please help , I really need it thanks!

Mathematics
1 answer:
Nana76 [90]3 years ago
4 0
The symbol "<=" without quotes means "less than or equal to"

-6x + 2y <= 42
-6x + 2y + 6x <= 42 + 6x ... Add 6x to both sides
2y <= 6x + 42
2y/2 <= 6x/2 + 42/2 ... divide every term by 2
y <= 3x + 21

So the answer is choice D
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3 years ago
Help me please, <br><br>Calculate the external perimeter of the picture frame: <br>​
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3 years ago
I am about to get my homework done I just need these two. (Thank you if you answer!!)
AnnZ [28]

Answer:

-7=h\\-6.81=q

Step-by-step explanation:

For question #1:

-3=h+8/2\\-3=h+4\\-7=h

For question #2:

q+16.41=9.6\\q=-6.81

8 0
2 years ago
Maths problem
Fudgin [204]

Answer:

250 x 3 = 750g

750g is your final answer

7 0
3 years ago
Read 2 more answers
An element with mass 780 grams decays by 17.1% per minute. How much of the element is remaining after 19 minutes to the nearest
Anit [1.1K]
Step 1
Formulate a recursive sequence modeling the number of grams after n  minutes.
we have that
100%-17.1%-------------- > 82.9%------------> 0.829

a(n) = 780*[0.829<span>^n]
</span>
for n=19 minutes
a(19)=780*[0.829^(19)]=22.1121 g---------------> 22.1 g

the answer is 22.1 g
6 0
3 years ago
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