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Mamont248 [21]
3 years ago
11

Express in simplest form (5a^2-3a+8)+ ( -4a^2-1)+(15a +11)

Mathematics
1 answer:
LekaFEV [45]3 years ago
6 0

Answer:

a^{2} + 12a + 18

Step-by-step explanation:

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The value of y varies jointly with x and z. If y = 7 when z = 196 and x = 2, find the value of y when x = 3 and z = 336. I will
eimsori [14]

Answer:

18

Step-by-step explanation:

Given that:

y∞ xz

y=kxz. Where k is constant

When z=196 and x= 2 then y= 7

7=(196)(2)k

7=392k

k=1/56

There fore y=(1/56)xz

When x=3 and z =336

y=(1/56)xz

y=(1/56)(336)(3)

y=18

8 0
3 years ago
Y= 5x + 13 <br> and<br> y= x + 45
arsen [322]

Answer:

x=8 and y=53

Step-by-step explanation:

Given function:

  • y=5x+13
  • y=x+45

Find x:

  • the two equation, the x and are breaked apart..
  • so find a number that they can both equal to together and has the same y.
  • multiply by 8..
  • 5·8=40
  • combine the terms for x and 13
  • 40+13=53
  • since x is 8 then if we add 8 with 45 it should be 53...
  • 8+45=53

y is:

  • this means that y=53.

Therefore, x=8 and y=53..

7 0
3 years ago
Raju finished his work in 5/6 hour.Vrinda finished her work in 3/4 hour .who worked longer ? By what fraction was it longer
Nataly [62]

Answer:

Raju worked longer by 0.08 hours.

3 0
3 years ago
Solve this problem to find Y. 800 x Y = 4800
kupik [55]

Answer:

6

Step-by-step explanation:

800*Y=4800

Y=4800/800

Y=6

5 0
3 years ago
Read 2 more answers
What is the solution of log3x − 2125 = 3
GalinKa [24]
The answer is x=7/3 hope this helps 
3 0
3 years ago
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