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valina [46]
3 years ago
15

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

Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
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.

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I’m pretty confused on this question. Anyone know the answers?
Afina-wow [57]

Answer:

see explanation

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y-intercept )

• If m > 0, then the line slopes upwards from left to right ( increases )

• If m < 0, then the line slopes downwards from left to right ( decreases )

(a)

y + x = 3 ( subtract x from both sides )

y = - x + 3 ← in slope-intercept form

with m = - 1 ⇒ decreasing from left to right

(c)

y = 4x + 8 ← is in slope-intercept form

with m = 4 ⇒ increasing from left to right

the equation of a line in the form x = c represents a vertical line, where c is the value of the x-coordinates the line passes through

(b)

x - 5 = 0 ( add 5 to both sides )

x = 5 ← is a vertical line

the equation of a line in the form y = c represents a horizontal line, where c is the value of the y-coordinates the line passes through

(d)

\frac{y}{4} = - 6 ( multiply both sides by 4 )

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3 0
3 years ago
A bacterium cell splits into 2 cells every hour. Write and evaluate an exponential expression to find how many cells there will
timurjin [86]

Answer:

2^x

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Step-by-step explanation:

doubles every hour

if x = hours

2^x

2^x --> 2⁶ = 64

2^x = 1024

1024 = 2^10 ---> x=10

7 0
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How many 1-centimeter squares fit along the length of the rectangle
Damm [24]
It would depend on how large the rectangle is
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At the end of a snow storm, Riley saw there was a lot of snow on her front lawn. The temperature increased and the snow began to
9966 [12]

Answer: the x-intercept of the fuction is 13 which represents the number of hours unit

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Step-by-step explanation:

4 0
3 years ago
Given the a center (-1, -2) and a radius r = 2. Identify the circle.
Tatiana [17]

Answer:

1st option

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Answered by GAUTHMATH

8 0
3 years ago
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