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
tangare [24]
2 years ago
10

82. Use properties of exponents to rewrite each expression with only positive, rational exponents. Then find the numerical value

of each expression when x = 9, y= 8, and z= 16. In each case, the expression evaluates to a rational number.
b. 11√y2z4
Mathematics
1 answer:
HACTEHA [7]2 years ago
7 0

Answer:

11yz² and when evaluating we get 22528

Step-by-step explanation:

We have the expression 11\sqrt{y^{2}z^{4}  }

We know that a square root is a 1/2 exponent, so we're going to multiply the exponents of y and z by 1/2.

11\sqrt{y^{2}z^{4}  }= 11y^{2(1/2)}z^{4(1/2)} }  =11yz^{2}

Therefore the expression is rewritten as 11yz^2

Now we're going to evaluate this expression for y = 8 and z = 16

11yz^{2} =11(8)(16)^2=88(256)=22528

Thus, when evaluated the result is 22528

You might be interested in
What is the height of a parallelogram that has an area of 124 m2 and a base length of 8 meters?
Eduardwww [97]
Http://ncert.nic.in/ncerts/l/gemp109.pdf
see if it helps if not I am sorry
6 0
3 years ago
Can somebody help me with this
EastWind [94]

Answer:

D = -1, -1, 2, 5

R = 0, 2, 3, 7

✅It is NOT A FUNCTION

Step-by-step explanation:

D (Domain) = input values (x-values)

D = -1, -1, 2, 5

R (Range) = output values

R = 0, 2, 3, 7

✅It is not a function because an x-value, -1, has two different y-values, 7 and 2, assigned to it.

7 0
2 years ago
Need help solving this.
Leona [35]
All of them because they all grow stuff that farmers grow
8 0
3 years ago
The following probability distributions of job satisfaction scores for a sample of information systems (IS) senior executives an
Mashcka [7]

Answer:

Step-by-step explanation:

To calculate ;

1) the expected value of the job satisfaction score for senior executives ;

expected value = Summation (Px)

= 1 x 0.05 + 2 x 0.09 + 3 x 0.03 + 4 x 0.42 + 5 x 0.41

= 4.05

2) the expected value of the job satisfaction score for middle managers;

= 1 x 0.04 + 2 x 0.10 + 3 x 0.12 + 4 x 0.46 + 5 x 0.28

= 3.84

c) the variance of job satisfaction scores for executives and middle managers (to 2 decimals).

Executives ; Variance = Summation(PX^2 - Summation(PX)^2

i) For Executive Managers = 1 x 0.05 + 2^2 x 0.09 + 3^2 x 0.03 + 4^2 x 0.42 + 5^2 x 0.41 - 4.05^2 = 1.246 = 1.25

ii) for middle managers ; 1 x 0.04 + 2^2 x 0.10 + 3^2 x 0.12 + 4^2 x 0.46 + 5^2 x 0.28 - 3.84^2 = 1.134 = 1.13

d) the standard deviation of job satisfaction scores for both probability distributions (to 2 decimals). Executives, Middle managers;

For Executives = square root [ 1 x 0.05 + 2^2 x 0.09 + 3^2 x 0.03 + 4^2 x 0.42 + 5^2 x 0.41 - 4.05^2] = 1.12

For Middle Managers ; Square root [1 x 0.04 + 2^2 x 0.10 + 3^2 x 0.12 + 4^2 x 0.46 + 5^2 x 0.28 - 3.84^2 ] = 1.06

e) from the values gotten for the variance of both executive and middle managers, the variance of the former is more than that of the latter as such higher satisfaction with the executive managers.

5 0
3 years ago
Original: $458<br> Discount:<br> New: $137.40
Vanyuwa [196]

Answer:

Your answer would be 30% discount

Step-by-step explanation:

137.40 / 458 = .3

8 0
3 years ago
Other questions:
  • (25 points) A construction crew is lengthening a road. Let y represent the total length of the road (in miles). Let x represent
    13·1 answer
  • there are 36 cans of beans and 48 cans of corn. the display designer wants an equal number of each vegetables in each row. what
    14·1 answer
  • Evaluate 2⋅(5^8/5^5)
    11·1 answer
  • What factors do 28 and 44 have in common?
    15·1 answer
  • 31 divided by 2 0ver 4 times 2 equals
    5·2 answers
  • 25points for this question Given: AB ≅ BC and AO ≅ OC OK − angle bisector of ∠BOC Find: m∠AOK
    13·1 answer
  • Tickets to the museum cost 7.50 each. Students receive a 15% discount on admission. What is the cost of a student ticket?
    8·1 answer
  • Write the Prime Factorization of the following Numbers:
    8·1 answer
  • The decimal equivalent of 14/26
    7·2 answers
  • 0.0000364% = 1 in ??? like 1 in 729
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!