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Tema [17]
3 years ago
13

5x +y=8

Mathematics
1 answer:
makvit [3.9K]3 years ago
6 0
Take away the bottom equation from the top so the y’s cancel out
3x = -24
x therefore = -8
and put x back into the equation to find out y
2(-8) + y= 32
-16 + y =32
y= 48
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Find the minimum or maximum value of the function g(x)= -(x-2)^2-3
Nady [450]
Neato

assuming you mean
g(x)=-1(x-2)^2-3
remember
in form
f(x)=a(x-h)^2+k
a is leading coficient
(h,k) is vertex
k will be the minimum or max value of the function
if a is positive, then the parabola opens up and k is minimum
if a is negative, then the parabola opens down and k is max

given
g(x)=-1(x-2)^2-3
a is negative
the parabola opens down and k is the max value
it is -3
the max value is -3, which occors at x=2
g(2)=-3 is max
3 0
3 years ago
Given the function ƒ(x) = 3x + 5, find ƒ(4) and x such that ƒ(x) = 38.
MissTica

Answer: A.17;11

f(4)= 3(4) + 5

=12 + 5

=17

And, f(x)= 38

=>3x+5=38

=>3x= 38-5

=>3x=33

=>x = 33÷3

=>x = 11

So, A.17;11

5 0
3 years ago
Which choices are equivalent to the fraction below? Check all that apply.<br> 20/24
laiz [17]

Answer:

5/6

Step-by-step explanation:

20 divide by 2 is 10

24 divide by 2 is 12

then have 10/12

10 divide by 2 is 5

12 divide by 2 is 6

answer is 5/6

7 0
3 years ago
Will someone help me with 4 I don't understand it
Maurinko [17]
They are not equivalent expression because 3^2 is 9 since 3*3 is 9 but 3*2 is 6, so the expressions are not equivalent. <span />
5 0
3 years ago
Pls help solve a and b
Varvara68 [4.7K]
A is 9 for the proportion part but I can’t see the rest of b so I can’t answer that for you
6 0
3 years ago
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