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
mr Goodwill [35]
3 years ago
15

If one letter is chosen at random from the word substitute, what is the probability that the letter chosen will be a "t"?

Mathematics
1 answer:
Aneli [31]3 years ago
4 0

Answer:

3/10

Step-by-step explanation:

there are 10 letters in substitute

there are 3 t's

3/10

You might be interested in
Which statements are true about the graph of the function f(x) = x2 – 8x + 5? Check all that apply.
statuscvo [17]

Answer:

A, D, E are true

Step-by-step explanation:

You have to complete the square to prove A.  Do this by first setting the function equal to 0, then moving the 5 to the other side.

x^2-8x=-5

Now we can complete the square.  Take half the linear term, square it, and add it to both sides.  Our linear term is 8 (from the -8x).  Half of 8 is 4, and 4 squared is 16.  So we add 16 to both sides.

(x^2-8x+16)=-5+16

We will do the addition on the right, no big deal.  On the left, however, what we have done in the process of completing the square is to create a perfect square binomial, which gives us the h coordinate of the vertex.  We will rewrite with that perfect square on the left and the addition done on the right,

(x-4)^2=11

Now we will move the 11 back over, which gives us the k coordinate of the vertex.

(x-4)^2-11=y

From this you can see that A is correct.

Also we can see that the vertex of this parabola is (4, -11), which is why B is NOT correct.

The axis of symmetry is also found in the h value.  This is, by definition, a positive x-squared parabola (opens upwards), so its axis of symmetry will be an "x = " equation.  In the case of this type of parabola, that "x = " will always be equal to the h value.  So the axis of symmetry is

x = 4, which is why C is NOT correct, either.

We can find the y-intercept of the function by going back to the standard form of the parabola (NOT the vertex form we found by completing the square) and sub in a 0 for x.  When we do that, and then solve for y, we find that when x = 0, y = 5.  So the y-intercept is (0, 5).

From this you can see that D is also correct.

To determine if the parabola has real solutions (meaning it will go through the x-axis twice), you can plug it into the quadratic formula to find these values of x.  I just plugged the formula into my graphing calculator and graphed it to see that it did, indeed, go through the x-axis twice.  Just so you know, the values of x where the function go through are (.6833752, 0) and (7.3166248, 0).  That's why you need the quadratic formula to find these values.

7 0
3 years ago
I need help with this math question pretty please
AleksAgata [21]
Just do 11x18x20x14 and u should get it
3 0
3 years ago
Read 2 more answers
Find the length of segment EG. Show all the work
svp [43]

Answer:

Hi I love you and I miss you

I don't know the answear sorry

5 0
2 years ago
Plz help me well mark brainliest if correct!
Charra [1.4K]

Answer:

diameter it goes throught the circle and as end points across

5 0
3 years ago
Read 2 more answers
Jimmy has $88 in his piggy bank. He is saving his
skelet666 [1.2K]

Answer:

88/15=5.86666666667

Step-by-step explanation:

5.86666666667 because it is

6 0
2 years ago
Other questions:
  • mrs cindy had2/3 of a cake .she divided the cake equally among her 3 children. what fraction of the cake did each children get?
    9·1 answer
  • swimming pool is being filled with a hose.  The hose fills the pool at a constant rate.  The pool's water level rises 4 inches i
    15·2 answers
  • What is the value of this expression? 7d squared+10 d=3
    15·2 answers
  • Jaquarius has a pair of limited edition Jordan tennis shoes that are 12 inches long each. What is the total length of both of hi
    5·1 answer
  • Miraculin - a protein naturally produced in a rare tropical fruit - can convert a sour taste into a sweet taste. Consequently, m
    11·1 answer
  • What is the absolute value of -4.5
    10·2 answers
  • Chuck says that he can draw a cylinder on his polyhedron poster because it has a pair of base that are congruent. is chuck corre
    7·1 answer
  • What is the scale factor in the dilation ?<br><br>1/6<br><br>1/3<br><br>3<br><br>6​
    8·2 answers
  • Katherine is conducting an experiment with bacteria where she cools the temperature of one bacteria to -51°C and the other bacte
    12·1 answer
  • Complete the equation of the line through (-10,-7)(−10,−7)left parenthesis, minus, 10, comma, minus, 7, right parenthesis and (-
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!