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neonofarm [45]
3 years ago
14

19. A teacher tells 36 students to form 4 equal groups. Write and solve a

Mathematics
1 answer:
olchik [2.2K]3 years ago
6 0

4 x = 36

Step-by-step explanation:

Because the groups have an equal number of students, we assume that each of the groups has <em>x </em>number of students.

Therefore since there is <em>x</em> number of students in each of the 4 groups, there is 4 * x number of total students in all groups combined.

Since the question already indicates that there are a total of 36 students in the class, then we can indicate that..

4x = 36

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Factor the expression over the complex numbers.<br><br> x2+20
vovangra [49]
X²+20=0
x=±√(-80)/2
x=±4i√5/2=2i√5

factorised it is then
(x+2i√5)*(x-2i√5)
6 0
3 years ago
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According to a report by Scarborough Research, the average monthly household cellular phone bill is $73. Suppose local monthly h
marta [7]

Answer:

The probability that a randomly selected monthly cell phone bill is less than $95 is 0.9772

Step-by-step explanation:

The average monthly household cellular phone bill is $73.

\mu = 73

Local monthly household cell phone bills are normally distributed with a standard deviation of $11.

\sigma = 11

We are supposed to find the probability that a randomly selected monthly cell phone bill is less than $95 i.e.P(x<95)

Z=\frac{x-\mu}{\sigma}

Z=\frac{95-73}{11}

Z=2

Refer the z table for p value

So,p value = 0.9772

Hence the probability that a randomly selected monthly cell phone bill is less than $95 is 0.9772

4 0
3 years ago
The graphs of functions f(x) and g(x) = f(x) + k are shown below<br><br> what is the value of k?
natali 33 [55]

Answer:

k = 2

Step-by-step explanation:

f(x) and g(x) = f(x) + k

G(x) is the function f(x) moved up k units

G(x) is moved up 2 units so k is 2

5 0
3 years ago
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If a = -4, b = 2, C = 3, and d = -5, then what is the value of (a - b)2 + (c- d)2​
leva [86]

Answer:

  100

Step-by-step explanation:

Put the values where the corresponding variables are, then do the arithmetic.

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  = (-6)^2 +(8)^2

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7 0
3 years ago
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Create a quadratic polynomial function f(x) and a linear binomial in the form (x − a).
erik [133]
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binomial  (x-3)

dividing:-
                x   + 2
          ----------------------
x - 3   )  x^2  - x   -  6
             x^2 - 3x
             ----------
                     2x - 6
                     2x - 6
                     --------
                      .........

result of division is (x + 2)  
s o we can write the function as (x - 3)(x + 2)

Part 2  f(a)  = f(3)   =  (3)^2 - 3 - 6 = 0

Part3  The remainder Theorem  states that  the remainder when a polynomial is divided by (x - a)  then the remainder is f(a).  If f(a) = 0 then  x - a is a factor.
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7 0
3 years ago
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