1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nastasia [14]
3 years ago
6

Evaluate 9x - 11 for x = -3 and x = 7.

Mathematics
1 answer:
o-na [289]3 years ago
4 0

Answer:

-38,

Step-by-step explanation:

1. 9x-11=-27-11=-38

2. 9x-11=63-11=52

The answers are in order.

1. x=-3

2. x=7

You might be interested in
20 ft<br> 12 ft<br> 23 ft<br> = what is the answer of this question
mihalych1998 [28]

Answer:

If you are simply adding them then it's 55 ft.

3 0
3 years ago
A bacteria culture starts with 100 bacteria and doubles in size every half hour. (a) how many bacteria are there after 4 hours?
Savatey [412]
19200 all you have to do to figure this out is multiply 100 times 8 since the is 8 halfs in 4 hours.
<span>
</span>
5 0
3 years ago
I REALLY NEED HELP PLEASE!!  
disa [49]


part A)

\bf \begin{array}{ccllll}&#10;hours(x)&velocity(y)\\&#10;-----&-----\\&#10;1&6\\&#10;3&2&#10;\end{array}\\\\&#10;-------------------------------\\\\


\bf \begin{array}{lllll}&#10;&x_1&y_1&x_2&y_2\\&#10;%   (a,b)&#10;&({{ 1}}\quad ,&{{ 6}})\quad &#10;%   (c,d)&#10;&({{ 3}}\quad ,&{{ 2}})&#10;\end{array}&#10;\\\\\\&#10;% slope  = m&#10;slope = {{ m}}= \cfrac{rise}{run} \implies &#10;\cfrac{{{ y_2}}-{{ y_1}}}{{{ x_2}}-{{ x_1}}}\implies \cfrac{2-6}{3-1}\implies \cfrac{-4}{2}\implies -2

\bf y-{{ y_1}}={{ m}}(x-{{ x_1}})\implies y-6=-2(x-1)\\&#10;\left. \qquad   \right. \uparrow\\&#10;\textit{point-slope form}&#10;\\\\\\&#10;y-6=-2x+2\implies y=-2x+2+6\implies \boxed{y=-2x+8}

part B)

well, we know y = -2x+8.... so.. what's the runner's velocity after 5hours? well, x = 5, thus y = -2(5) +8 ---> y = -2

to graph it, well, is a LINEar equation, meaning the graph is a LINE, and to graph a line, all you need is two points, and by now, you have more than two.. so graph it away.
7 0
3 years ago
Which equation will be parallel to y=6 A)Y= -6x B)X=6 C)y=1 D)Y=6x
galben [10]

Answer:

A

Step-by-step explanation:

4 0
3 years ago
What is the length of line segment A.B?<br> Please help!!
weqwewe [10]

Answer:

x = 6.40 units

Step-by-step explanation:

4^2 + 5^2 = x^2

x = 6.40 units

5 0
2 years ago
Other questions:
  • A carpenter buys $54.38 worth of parts from a supplier. If he pays for the parts with a $100 bill, how much change will he recei
    12·2 answers
  • I don't understand this..
    5·2 answers
  • A third-degree polynomial has 4 intercepts.
    10·1 answer
  • 7(-2 - 5n) solve<br>how do you do this equation can you help me please?​
    6·1 answer
  • Write the equation for the line best fit.​
    15·1 answer
  • HELP ASAP PLEASE Some of the measurements of the triangular prism with a right triangle base are shown.
    5·1 answer
  • У
    11·1 answer
  • Please help, it's for a geometry quiz, show all work please, question in the image attached
    5·1 answer
  • What’s 6.4 rounded to the nearest 10th
    6·2 answers
  • Formúla General <br>a) 4x²=9x-2=0 <br><br>b) X²+8x-84=0<br>​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!