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algol [13]
3 years ago
15

If a = 1/2 3(7 + 3a) + 4a

Mathematics
1 answer:
gavmur [86]3 years ago
4 0
The answer of the equation when a is plugged in to the answer is 27.5.
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In this equation What is 77+23
kondaur [170]
The answer is 100 I’m sure
3 0
4 years ago
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Help!?Who can help me with this?
Sonbull [250]
What he/she said is correct
6 0
3 years ago
A circle has the equation x^2−8y−6x+y^2=4.
mylen [45]
Hello here is a solution :
x²-8y-6x+y²=4....(1)
A)
x²-6x = x²-2(3)x+9-9
         = x²-2(3)x+3²-9
x²-6x =(x-3)² -9
B)
y²-8y = y²-2(4)y +4²-16
y²-8y = (y-4)²-16
C)
in (1) :

(x-3)² -9 +(y-4)²-16 = 4
(x-3)² +(y-4)² = 29   ...<span>is the standard form of the equation

</span>   <span>Select answer 1 : 
</span><span>A: 3
B: 4
C: (x−3)2+(y−4)2=29</span>
8 0
3 years ago
20. Solve 3(5x − 4) &lt; 15x.<br> All Real Numbers<br> x&gt;-4 <br>x&lt;4<br>no solution ​
Natasha2012 [34]

Answer:

No solution

Step-by-step explanation:

3(5x - 4) < 15x \\ 15x - 12 < 15x \\ 15x - 15x < 12 \\ 0 < 12

8 0
2 years ago
A circular piece of glass has a radius of 2.1 meters. The glass sells for $1.70 per square meter. What is the total cost of the
Vsevolod [243]
Hello! 

To find the total cost, we will need to multiply the cost per square meter, by the total area. To find the area we will use the formula A=<span>πr</span>². We will use 3.14 for pi.

We know that 2.1 is our radius. We will square it and then multiply it by 3.14.

2.1²=4.41
4.41(3.14)≈13.85

Our area is about 13.85. Now we will multiply by $1.70 to find the total cost. This gives us about $23.55.

The total cost of the glass would be about $23.55.

I hope this helps!


6 0
3 years ago
Read 2 more answers
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