Math help mee plzzzzzz THERE IS A ATTACHMENT SO WAIT AT LEAST 30 SECONDS PLZZZZ
2 answers:
10. 2800 = 500 + 2x
-500 -500
2x = 2300
/2 /2
x = 1150
the cost for one month is $1150
11. 20-3h=2
-20 -20
-3h = -18
/-3 /-3
h = 6
12. g/7-15=-12
+15 +15
g/7=3 >> (7/1)*(g/7) = 3(7)
g = 21
13. 17= p-3-3p
2p-3=17
+3 +3
2p = 20
/2 /2
p = 10
14. -4(r+6)=-63 (distribute)
-4r-24=-63
+24 +24
-4r = 39
/-4 /-4
r = -9 3/4
15. 4x+3(x-2)=-20
4x+3x-6=-20
+6 +6
7x = -14
/7 /7
x = -2
16. 3n-5=7n+11
-3n -3n
7n-11=-5
+11 +11
7n = 6
/7 /7
n = 6/7
17. -6a+3=-3(2a-1)
/-3 /-3
-2a+1=-2a+1
+2a-1 +2a-1
0 = 0
18. 2y+5=1/2(4y+8) >> multiply both sides by 2/1
2(2y+5)=4y+8
4y+10=4y+8
-4y -4y
10
8
-500 -500
2x = 2300
/2 /2
x = 1150
the cost for one month is $1150
11. 20-3h=2
-20 -20
-3h = -18
/-3 /-3
h = 6
12. g/7-15=-12
+15 +15
g/7=3 >> (7/1)*(g/7) = 3(7)
g = 21
13. 17= p-3-3p
2p-3=17
+3 +3
2p = 20
/2 /2
p = 10
14. -4(r+6)=-63 (distribute)
-4r-24=-63
+24 +24
-4r = 39
/-4 /-4
r = -9 3/4
15. 4x+3(x-2)=-20
4x+3x-6=-20
+6 +6
7x = -14
/7 /7
x = -2
16. 3n-5=7n+11
-3n -3n
7n-11=-5
+11 +11
7n = 6
/7 /7
n = 6/7
17. -6a+3=-3(2a-1)
/-3 /-3
-2a+1=-2a+1
+2a-1 +2a-1
0 = 0
18. 2y+5=1/2(4y+8) >> multiply both sides by 2/1
2(2y+5)=4y+8
4y+10=4y+8
-4y -4y
10
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Vertex<em> </em>is at
<em>y-intercept</em> is 3.
The parabola <em>opens up</em>.
Step-by-step explanation:
The graph of the equation is hereby attached in the answer area.
Vertex is the point on the parabola where the graph crosses its axis of symmetry. The axis of symmetry here(), is shown with the dotted line in the graph attached.
<em>y-intercept </em>is defined as the value of y where the graph crosses the y-axis. In other words, when . Putting
And, the graph opens up as shown the graph figure as well. It is also evident from the co-efficient of in the given equation
. Here, co-efficient of
So, vertex<em> </em>is at
<em>y-intercept</em> is 3.
The parabola <em>opens up</em>.
