Question

someone please help with two questions?

Answer 1

I saved the wrong one.

Answer 2

sup

Answer 3

@satellite73

Answer 4

first one, looks like you are adding 5 each time right?
keep adding 5

Answer 5

second one is the "distributive property" \(a(b+c)=ab+ac\)

Answer 6

I have another study guide that i'm trying to fill out tonight for a big bonus extra credit

Answer 7

\[5x+11\geq -9\] we need to solve this right?

Answer 8

Yes.

Answer 9

What grade you in?

Answer 10

subtract \(11\) from both sides, get
\[5x\geq -20\] then divide both sides by \(5\) to get
\[x\geq -4\]

Answer 11

\[10x-3\leq 27\] is done similarly
add \(3\) and divide by \(10\)

Answer 12

you get pretty much in your head
\[x\leq 3\]

Answer 13

put them together and get
\[-4\leq x\leq 3\]

Answer 14

So c?

Answer 15

c?

Answer 16

oh no, it is A

Answer 17

Oh sorry haha, do my mind helping on this study guide?

Answer 18

go ahead and ask

Answer 19

\[-10x+11y=-6\] solve for \(y\) by adding \(10x\) to both sides and get
\[11y=10x+6\]

Answer 20

then divide both sides by \(11\) giving
\[y=\frac{10}{11}x-\frac{6}{11}\]

Answer 21

the slope is \(\frac{10}{11}\) and the \(y\) intercept is \(-\frac{6}{11}\)

Answer 22

it is a polynomial
the domain of a polynomial is all real numbers

Answer 23

for the range, you have to find the vertex
do you know how to do that?

Answer 24

no.

Answer 25

lol
ok, we use \(-\frac{b}{2a}\) which in your case is \(-\frac{-2}{2\times 1}=1\)

Answer 26

then replace \(x\) by \(1\) and get \(y=1^2-2\times 1+3=1-2+3=-1+3=2\)
so the vertex is \((1,2)\)and the range is
\[\{y|y\geq 2\}\]

Answer 27

Ok, so now it automatically has to be b?

Answer 28

yes

Answer 29

\[y-y_1=m(x-x_1)\]
\[y-3=\frac{4}{7}(x-7)\]

Answer 30

@satellite73

Answer 31

hell i don't know
but since the original price in 1985 is 1.25 go with b

Answer 32

you really only have one choice here
the \(-7\) at the end means it goes "Down 7"

Answer 33

jesus how many of these you got?

Answer 34

It's a study guide to my final next week, it's half of the questions on the final, there are like 100 something on the final, but this is like 40

Answer 35

at least two hours means \(x+y\geq 2\)

Answer 36

so its either b or c

Answer 37

he works less on his backhand than his serve \(x<y\)

Answer 38

and also \(y>0\)

Answer 39

so b?

Answer 40

no i think c because you need \(x<y\)

Answer 41

mercifully it is the first one

Answer 42

i gotta run, good luck

Answer 43

Thanks, i will finish this study guide :)