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rewona [7]
3 years ago
9

20 points and brainliest to whoever answers first correctly!!

Mathematics
2 answers:
Klio2033 [76]3 years ago
7 0
The y intercept is -3.
jekas [21]3 years ago
3 0
The y-intercept is y=-3

There is a great website called Desmos. You can enter any equation and it will graph it for you. 

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If f(x)=x-5, find x when f(x)=15
Leya [2.2K]

Answer:

x = 20

Step-by-step explanation:

we are given the value of f(x), replace it in the first equation

15 = x - 5

solve for x by adding 5 on both sides

15 + 5 = x

20 = x or x = 20

5 0
2 years ago
How do I figure out a mixed percentage number of a whole
seraphim [82]
Sorry not in high school
7 0
2 years ago
Please help me :( *also what school do y'all go to?*
Veronika [31]

Answer:

3

Step-by-step explanation:

Because 30 divided by 5 =6 which is the miles so divide 15 by 5 and the minutes are 6 so 6x5 so 3

6 0
2 years ago
Read 2 more answers
Verify the identity<br><br> cos quantity x plus pi divided by two = -sin x
In-s [12.5K]

Answer:

Identity is verified.

Step-by-step explanation:

We have to verify the identity cos(x+\frac{\pi }{2}) = (- sinx)

To prove any identity we always prove one side(either left hand side or right hand side) of the equation equal to the other side.

In this identity we take the left hand side first

cos(x+\frac{\pi}{2})

=cosx\times cos(\pi/2)-sinx\times sin(\pi/2))  (as we know cos(a+b) = cosa×cosb-sina×sinb)

= cosx\times0-sinx\times1

= 0-sinx

= - sinx ( Right hand side)

Hence identity is proved.

6 0
3 years ago
Please help me with #1
jasenka [17]

let apple juice = x

 milk = 2x

 fruit punch = 3x

3x + 2x + x = 660

6x = 660

x = 660/6

x = 110 apple juices

2*110 = 220 milks

3*110 = 330 fruit punches

6 0
3 years ago
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