3 years ago

Few math questions TIME IS RUNNING OUT!! PLEASE HELP!!!!

1 answer:

3 0

1.

$|5+6x|\ \textless \ 13\\\\-13\ \textless \ 5+6x\ \textless \ 13$

so

$\begin{cases}5+6x\ \textless \ 13\\5+6x\ \textgreater \ -13\end{cases}$

Answers B and D.

2.

$|x+9|\geq11\\\\x+9\ \textgreater \ 11\qquad\vee\qquad x+9\leq-11\\\\
\boxed{x\geq2\qquad\vee\qquad x\leq-20}$

Answer D.

3.

The same as point 2. Answer D.

4.

Answer C.

You might be interested in

What is (f *g)(x)? f(x) = x^4 - 9 g(x)= x^3 +9 (f *g)(x) = ??

dybincka [34]

Use F.O.I.L

X^7+9x^4-9x^3-81

5 0

3 years ago

Tannin and Dax bought a new video game for $48 to use the coupon for 25% off how much would the game cost if they paid full pric

olchik [2.2K]

Answer:

$64

Step-by-step explanation:

After using a 25% discount coupon, they paid 48 for the video game.

It means, which number, decreased by 25%, would give us 48?

First, 25% to decimal is:

25/100 = 0.25

Now, if we let the original price be "x", we can say:

x decreased by 0.25 of x would give us 48

Translating this to algebraic equation gives us:

x - 0.25x = 48

Now, we solve this:

$x - 0.25x = 48\\0.75x=48\\x=\frac{48}{0.75}\\x=64$

If they paid full price, the video game would cost $64

3 0

3 years ago

Cathy earns $32 after babysitting for 5 hours. How much money does she earn per hour?

telo118 [61]

The answer would be $6.40

4 0

3 years ago

Read 2 more answers

A ruler costs pence.

Katarina [22]

Answer:

2x+3(10+x)

Step-by-step explanation:

I'm not sure but I think this might be the answer

8 0

2 years ago

Scott has a rope 8 metres long. He says, “I need 9 pieces each 0.89 metres long.’’ Will Scott have enough ribbon?

Lelechka [254]

Answer:

Step-by-step explanation:

How did it go from "rope" to "ribbon", therefore, the statement is incorrect. This is a man-made equation that clearly has a mistake. If it was to say, "Will Scott have enough rope?" then the answer will be "YES"

7 0

3 years ago