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
wariber [46]
1 year ago
8

Quantities that can be described completely by their magnitude or size are called vector quantities. (5 points) true false.

Mathematics
1 answer:
Olegator [25]1 year ago
5 0
False, a vector quantity is described by their magnitude and direction.

A scalar is completely described by its magnitude.
You might be interested in
Write the equations for the basic absolute value equation y=|x-h|+k under the given transformations:
BlackZzzverrR [31]
<span>Left & Right affect the h,
Up & Down affect the k,
Shrink & Stretch affect the "a" (which is in front of the absolute value expression).

1. shift 1 unit to the right and up 2 units → y = |x-1| + 2
2. </span><span>shift 3 units to the left and 7 units down → y = |x + 7| - 7
3. </span><span>vertical shrink by a factor of 1/3 → y = \frac{1}{3}|x|
4. </span><span>vertical stretch by a factor of 3 → y = </span><span>3 |x|</span>
5 0
3 years ago
Really need big help on this one please
Valentin [98]

Answer:

Answer equals to 55.75ftsquare

Step-by-step explanation:

7 0
3 years ago
Thomas's cat, Rainwright, eats 0.8 cans of food every day. How much will Thomas spend on food in one week if each can costs $1.7
marshall27 [118]
1 week = 7 days
0.8 \times 7 \times 1.75 \\  = 9.8

Answer : Thomas spends $9.80 on food in one week.

Hope this helps. - M
3 0
3 years ago
Simplify the expression below 3x+2 -3x+7 +5x
spin [16.1K]
6x + 9

First, simplify x

3x + -3x + 5x = 6x

Then, simplify the rest of the numbers:

2 + 7 = 9

Then make the equation:

6x + 9
5 0
3 years ago
Audrey, an astronomer is searching for extra-solar planets using the technique of relativistic lensing. Though there are believe
Stolb23 [73]

Answer:

Step-by-step explanation:

The model N (t), the number of planets found up to time t, as a Poisson process. So, the N (t) has distribution of Poison distribution with parameter (\lambda t)

a)

The mean for a month is, \lambda = \frac{1}{3} per month

E[N(t)]= \lambda t\\\\=\frac{1}{3}(24)\\\\=8

(Here. t = 24)

For Poisson process mean and variance are same,

Var[N (t)]= Var[N(24)]\\= E [N (24)]\\=8

 

(Poisson distribution mean and variance equal)

 

The standard deviation of the number of planets is,

\sigma( 24 )] =\sqrt{Var[ N(24)]}=\sqrt{8}= 2.828

b)

For the Poisson process the intervals between events(finding a new planet) have  independent  exponential  distribution with parameter \lambda. The  sum  of K of these  independent exponential has distribution Gamma (K, \lambda).

From the given information, k = 6 and \lambda =\frac{1}{3}

Calculate the expected value.

E(x)=\frac{\alpha}{\beta}\\\\=\frac{K}{\lambda}\\\\=\frac{6}{\frac{1}{3}}\\\\=18

(Here, \alpha =k and \beta=\lambda)                                                                      

C)

Calculate the probability that she will become eligible for the prize within one year.

Here, 1 year is equal to 12 months.

P(X ≤ 12) = (1/Г  (k)λ^k)(x)^(k-1).(e)^(-x/λ)

=\frac{1}{Г  (6)(\frac{1}{3})^6}(12)^{6-1}e^{-36}\\\\=0.2148696\\=0.2419\\=21.49%

Hence, the required probability is 0.2149 or 21.49%

5 0
3 years ago
Other questions:
  • James got 5 questions wrong out of 40 questions what percent of the questions did he get correct
    13·1 answer
  • There are 6 runners in the 100 meter race at a track meet. in how many ways can the runners be arranged
    6·1 answer
  • Together, Zaid and Rayyan had 195 baseball cards. Once Rayyan gave 3/8 of his cards to another friend, he and Zaid had an equal
    7·2 answers
  • If you roll a number cube 54 times, about how many times do you expect to roll a number less than 5?
    12·1 answer
  • Joanie's bag of trail mix has a mass of 0.75 kilogram. She and some friends eat 0.5 kilogram of the mix. How many kilograms of t
    9·2 answers
  • 20POINTS!<br> HELP ME PLZZ I NEED HELP WITH THIS IT IS DUE TOMORROW !!
    11·1 answer
  • Two plans offer 500 free minutes per month
    5·1 answer
  • Which mixed number is equivalent to the improper fraction?<br> 11 7
    10·2 answers
  • What is 86,503 when written in expanded form
    5·2 answers
  • Points S, L, and P on this grid represent the locations of the school, the library, and the park, respectively.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!