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
Artyom0805 [142]
3 years ago
14

Find the value of aa for which v=⎡⎣⎢⎢⎢5a−74⎤⎦⎥⎥⎥v=[5a−74] is in the set h=span⎧⎩⎨⎪⎪⎪⎪⎪⎪⎡⎣⎢⎢⎢5−1−5−2⎤⎦⎥⎥⎥,⎡⎣⎢⎢⎢05−2−2⎤⎦⎥⎥⎥,⎡⎣⎢⎢⎢0

015⎤⎦⎥⎥⎥⎫⎭⎬⎪⎪⎪⎪⎪⎪h=span{[5−1−5−2],[05−2−2],[0015]}.
Mathematics
1 answer:
masha68 [24]3 years ago
6 0
I am a little confused, if there any answer thingys? :/
You might be interested in
A particular professor is known for his arbitrary grading policies. eachpaper receives a grade from the set{a, a-, b+, b, b-, c+
zepelin [54]

Answer:

The answer to the question is;

The number of papers expected to be handed in before receiving each possible grade at least once is 14.93.

Step-by-step explanation:

To solve the question , we note that it is a geometric distribution question which have equal probabilities and therefore is a form of Binomial distribution with Bernoulli trials, where we are conducting the trials till we have r successes

Since we have r = 6, we will have to find the expected value of the number of trials till the nth paper handed in receives a previously awarded grade.

We therefore have,

The Probability that out of six papers turned 5 are different scores is given by

P(Y=5) = p'= q⁵p = (1-p)⁵p = 3125/46656

Therefore p' = the probability of receiving different grades once then the expected value is given by

E(X)  = 1/p' = 46656/3125 = 14.93.

3 0
4 years ago
For what values of x is the function f(x)=x^2-4x-5 increasing?
stepladder [879]
For x ∈ [ - b / ( 2a ) ; +oo ) , f is increasing; => x ∈ [ +2 ; +oo ).
6 0
3 years ago
ken paid $12 for two magazines. The cost of each magazine was a multiple of $3. What are the possible prices of the magazines?
lesya [120]
Well \frac{12 dollars}{2 magazines} is $6 per magazine and 6 is a multiple of 3, so that's a possibility.<span />
7 0
3 years ago
Read 2 more answers
I made a fort for my pet porcupine by connecting two boxes. the first box is 10 meters long, 7 meters wide, and 5 meters high. t
Lerok [7]

First, let's find the volume of the two boxes.

V = lwhV=lwhV, equals, l, w, h

V=10\times7\times5V=10×7×5V, equals, 10, times, 7, times, 5

V= \blue{350} \text{ cubic meters}V=350 cubic metersV, equals, start color blue, 350, end color blue, space, c, u, b, i, c, space, m, e, t, e, r, s

V = lwhV=lwhV, equals, l, w, h

V=4\times10\times8V=4×10×8V, equals, 4, times, 10, times, 8

V= \pink{320} \text{ cubic meters}V=320 cubic metersV, equals, start color pink, 320, end color pink, space, c, u, b, i, c, space, m, e, t, e, r, s

Hint #22 / 3

Since my porcupine can play in both boxes, we need to add the volumes of the two boxes.

\blue{350}+\pink{320}=\green{670}350+320=670start color blue, 350, end color blue, plus, start color pink, 320, end color pink, equals, start color green, 670, end color green

Hint #33 / 3

My porcupine has \green{670}670start color green, 670, end color green cubic meters of space to play in his fort.  

670 is your answer i hoped this help please rate me thanks :)

6 0
3 years ago
Read 2 more answers
If u know this question I would be glad for your help
Damm [24]
The answer is 2,575.
7 0
3 years ago
Other questions:
  • Lol i need help soemone halp
    12·1 answer
  • What is the range of this?
    7·1 answer
  • In a survey 9 out of 15 students named math as there favorite class. express this rate as a decimal
    15·2 answers
  • Plz help I need help now
    7·1 answer
  • HOW TO WRITE IN DIVISION EXXPRESION I GIVE BRAINLEST
    6·1 answer
  • I don't understand this can anyone help please.
    8·1 answer
  • Joe would have earned $504 for working a 42 hour week but he was sick and missed 4 hours. How much did he earn?
    7·2 answers
  • In Simpson's rule, why does the n (number of strips) have to be an even number?​
    5·1 answer
  • The volume of a cylinder is 5401 cubic meters and the height is 15 meters. Find the length of the diameter of the cylinder.​
    14·1 answer
  • HELPPP FAST PLEASE
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!