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larisa [96]
4 years ago
13

4x - 4y = -2 -9x - 4y = -3

Mathematics
1 answer:
liubo4ka [24]4 years ago
7 0

Answer:

x=1/13 y=15/26

Step-by-step explanation:

hope this helps!

please mark me brainliest! thanks!

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A plane has 360 total seats, which are divided into economy class and business class. For every 13 seats in economy class, there
saveliy_v [14]
Hello! 

The first thing you want to do is add 13+5 which gives you 18. SO then you see how many times 18 goes into 360. Which gives you 20. So then you multiply 20 by 5 (because there are 5 business seats for every 13 and 18 went into 360 20 times, which gives you 100 business seats. Then you subtract 100 from 360 to see how many economy seats are left which gives you 260 economy seats. So there are 100 business seats and 260 economy seats. 

I hope this helped!

I am, yours most sincerely,
SuperHelperThingy
4 0
4 years ago
Read 2 more answers
Evaluate: g(4):g(x) = 8x2 + 9x - 7
Elden [556K]

Answer:

g(4) = 157

Step-by-step explanation:

g(x) = 8x^2 + 9x - 7

Let x  =4

g(4) = 8 * 4^2 +9*4 -7

       =8*16 +36 - 7

        =128+36-7

        =157

6 0
3 years ago
Read 2 more answers
Please help, I cannot figure this out!
oee [108]
I believe it is false I am sorry if it’s not correct
8 0
3 years ago
Is YZ tangent to circle x
inna [77]

<u>Given:</u>

The radius of the circle XY is XY = 11.4 in

The length of ZY is 15.2 in

The length of XZ is 19.6 in

We need to determine whether YZ is a tangent to the circle X.

<u>Is YZ tangent to the circle X:</u>

We shall determine whether YZ is a tangent to the circle X by using the Pythagorean theorem.

Thus, we have;

XZ^2=XY^2+YZ^2

Substituting the values, we have;

(19.6)^2=(11.4)^2+(15.2)^2

Simplifying, we get;

384.16=129.96+231.04

384.16\neq 361

Since, both sides of the equation are not equal, thus, YZ is not a tangent to the circle X.

4 0
3 years ago
Help me please !!!!!
andrew-mc [135]

Answer:

Step-by-step explanation:

The way to do this is just to add the two real parts together and add the two imaginary parts together.

2 + 5j + 7 - 3j

2 + 7 + 5j - 3j

9 + 2j

3 0
3 years ago
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