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
8

What is this? Please answer with an explanation

Mathematics
1 answer:
Colt1911 [192]3 years ago
8 0

Answer:

No

Step-by-step explanation:

Given

f(x) = \sqrt{x-10} + 11 ← substitute x = 1

f(1) = \sqrt{1-10} + 11

     = \sqrt{-9} + 11

\sqrt{-9}  is not real and therefore x = 1 does not have a real output for f(x)

You might be interested in
What temperature is 5 degrees less than 4 degrees Celsius
Xelga [282]
The correct answer is -4.
5 0
3 years ago
Read 2 more answers
Find the difference 9 1/3 - 2/3
olga2289 [7]
Answer:  9 1/3 - 2/3 =  8  2/3 .
___________________________________

Note:  If the answer were "8 1/3" ; 

then:  "8 1/3 + 2/3 =? 9 1/3 ? "  

      → "8 1/3 + 2/3 = 8  3/3 = 8 + 1 = 9 = only "9" ;
____________________________________________
So the answer has to be MORE than "8 1/3"

Try "8 2/3"  → "8 2/3 + 2/3 =? 9 1/3?" ?? ; 
        
                  → "8 2/3 + 2/3 = 8 4/3 = 8 + 1 1/3 = 9 1/3 " → Yes!
_________________________________________________
 So, the answer is:  "8  2/3" .
_________________________________________________
Another method:
_________________
Given the problem:  "<span>9 1/3 - 2/3 " ;
___________________________________
Note that:  "2/3 = 1/3 + 1/3"
__________________________________
So, "</span><span>9 1/3 - 2/3 = 9 1/3 - (1/3 + 1/3) = 9 1/3 - 1/3 - 1/3 = ?
 ________________________________________________
   Start with:  "</span>9 1/3 - 2/3" = 9.  Then 9 - 1/3 = 8 3/3 - 1/3 = 8 2/3.
<span>______________________________________________________
</span>Another method:
____________________________
Given the problem:  
____________________________
  "9 1/3 - 2/3 = ?? " ;
____________________________
  Convert "9 1/3" into "28/3" ;  ("3*9 = 27"); ("27+1=28");
                                           (The "3" comes from the "3" in the: "1/3" portion.)
_________________________________________________________
  So, we rewrite as:  
_____________________________________
   28/3 - 2/3 = (28 - 2) / 3 = 26/3 ; or, 8  2/3 .
__________________________________________________
3 0
3 years ago
Which equation can be used to solve for the unknown number? Seven less than a number is thirteen.
zysi [14]

Answer:

n-7=13

Step-by-step explanation:

We need to find an equation that represents the expression: "Seven less than a number is thirteen".

It means that a number minus 7 equals 13. So, the correct option is: n-7=13

Bonus: Solving for 'n' we have that n=20.

So, Seven less than 20 equals 13!!

7 0
3 years ago
Read 2 more answers
Can someone help me with number 4,5 and 6?
True [87]
4) You know slope-intercept form is y=mx+b. So using these two given points, you can find the slope! 

(-8,5)  (-3,10) [Use the y1-y2 over x1-x2 formula to solve for slope]

10 - 5         5
---------   = ----- = 1 
-3-(-8)         5

Hurray! You got a slope of one. Now substitute this back into your original equation:
y=mx+b --> y=1x+b 

Next, we find what our "b" is, or what our y-intercept is:
Using one of the previous points given, substitute them into the new equation:
[I used the point (-3, 10) ]

y=1x+b
10=1(-3)+b  SUBSTITUTE 
10=-3+b     MULTIPLY
10=-3+b
+3   +3    ADD
----------
13=b     SIMPLIFY 

So, now we have our y-intercept. Use this and plug it into the equation:
y=1x+b --> y=1x+13 

y=1x+13 is our final answer.



5) So for perpendicular lines, your slope will be the opposite reciprocal of the original slope. (Ex: Slope is 2, but perpendicular slope is -1/2) 

We have the equation y= 3x-1, so find the reciprocal slope! 
--> y=-1/3x-1 

Good! Now we take our given point, (9, -4) and plug it into the new equation:

y=-1/3x-1
-4=-1/3(9)+b   SUBSTITUTE and revert "-1" to "b", for we are trying to find the y-     -4=-3+b          intercept of our perpendicular equation. 
+3   +3            ADD
--------
-1=b    SIMPLIFY 

So, our final answer is y=-1/3x+(-1)

6) I don't know, sorry! :( 
4 0
3 years ago
A bag contain 5 red marbles,4 green marbles and 1 blue marble. A marble is chosen at random from the bag and not replaced; then
jarptica [38.1K]

Answer:

\frac{2}{15}

Step-by-step explanation:

GIVEN: A bag contain 5 red marbles,4 green marbles and 1 blue marble. A marble is chosen at random from the bag and not replaced, then a second marble is chose.

TO FIND: What is the probability both marbles are green.

SOLUTION:

Total marbles in bag =10

total number of green marbles =4

Probability that first marble will be green P(A)=\frac{\text{total green marbles}}{\text{total marbles}}

                                                                    =\frac{4}{10}=\frac{2}{5}

Probability that second marble will be green P(B)=\frac{\text{total green marble in bag}}{\text{total marble in bag}}

                                                                                    \frac{3}{9}=\frac{1}{3}

As both events are disjoint

probability both marbles are green =P(A)\times P(B)

                                                           =\frac{2}{5}\times\frac{1}{3}=\frac{2}{15}

Hence  the probability both marbles are green is \frac{2}{15}

8 0
3 years ago
Other questions:
  • Naomi has a neon tretra fish
    13·1 answer
  • Twelve students were asked how long they spent doing homework last week. The scatter plot shows the results of the survey.
    8·1 answer
  • The interior angles in a regular polygon are 140 degrees. How many sides has the polygon?
    7·2 answers
  • What is the domain of the function y= /x+6-7?
    11·1 answer
  • The volume of a cube is 125 cm3. The area of a square is 64 cm3. How does the length of one edge of the cube compare to the leng
    5·1 answer
  • How to count from 170 to 410 using tens and hundreds
    10·2 answers
  • Someone help please!!
    7·1 answer
  • Plz help me with this question <br> 15 pt
    11·1 answer
  • Solve this problem. <br><br> Don't answer if you don't know. NO IMPROPER ANSWERS.
    10·2 answers
  • The ratio of bunnies to squirrels was 3 to 5 if there was 168 bunnies
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!