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
expeople1 [14]
2 years ago
9

Which expression has a value of 66? A. (16 ÷ 3.2) × 2 + 0.2 × (8 + 82) B. [(16 ÷ 3.2) × (2 + 0.2)] × 8 + 82 C. 16 ÷ [(3.2 × 2) +

(0.2 × 8)] + 82 D. [16 ÷ (3.2 × 2) + 0.2 × (8 + 82)]
Mathematics
1 answer:
Setler [38]2 years ago
8 0

Answer: none

Step-by-step explanation:

(A)

(16÷32/10) ×2 + 0.2×(90)

Using bodmas principle ; solve bracket

(16×10/32)×2 + (2/10×90)

10+18 =28

(B)

{(16÷32/10) × (2+2/10)} ×90

Open brackets

{(16×10/32) × (22/10)} ×90

(5×11/5) ×90

11×90 = 990

(C)

16÷{(32/10×2) + (2/10×8)} +82

Open brackets, solve division first, dolled by addition

16÷(32/5 + 8/5) +82

16÷(40/5) +82

16÷8 +82

2+82= 84

(D)

[16÷(32/10 ×2) + 0.2× (90)]

16÷ (32/5) + 2/10 ×90

Solve division

16×5/32 + 18

5/2 + 18

L.c.m of denominator (2&1) =2

(5+36) / 2 = 41/2

=20.5

You might be interested in
PLEASE HURRY THIS IS DUE IN 10 MINUTES AND I AM REALLY CONFUSED!!
Harrizon [31]

Answer:

A. 8 beads per bracelet.

7 0
3 years ago
The numbers of regular season wins for 10 football teams in a given season are given below. Determine the range, mean, variance,
galina1969 [7]

Answer:

Range = 13

Mean = 8.3

Variance = 17.61

Step-by-step explanation:

Given the population dataset :

2, 9, 15, 4, 12, 9, 13, 6, 3, 10

1.) Range : (maximum - minimum)

Maximum = 15 ; minimum = 2

Range = (15 - 2) = 13

2.) population mean (μ) :

μ = ΣX / n

n = sample size

μ = (2 + 9 + 15 + 4 + 12 + 9 + 13 + 6 + 3 + 10) / 10

μ = 83 / 10

μ = 8.3

3.) Population variance (s²)

Σ(x - μ)² / n

=[(2 - 8.3)^2 + (9 - 8.3)^2 + (15 - 8.3)^2 + (4 - 8.3)^2 + (12 - 8.3)^2 + (9 - 8.3)^2 + (13 - 8.3)^2 + (6 - 8.3)^2 + (3 - 8.3)^2 + (10 - 8.3)^2] / 10

s² = 176.1 / 10

s² = 17.61

8 0
3 years ago
A little help? A set of numbers is given below. √72, 9.25, √83, 2, 8.7 Which list correctly orders the numbers from least to gre
myrzilka [38]

Answer:

9.25, 83^1/2, 8.7, 72^1/2, 2 From greatest to least

2, 72^1/2, 8.7, 83^1/2, 9.25 from least to greatest

Step-by-step explanation:

6 0
3 years ago
(04.04 MC) Given the directrix of y = −1 and focus of (0, 3), which is the equation of the parabola?
densk [106]

Answer:

its c,  y = one eighthx2 + 1

Step-by-step explanation:

3 0
3 years ago
What is the value of the expression x + (–y) when x = –2.3 and y = –5.9?
kramer
X + (-y) = -2.3 + ( - (-5.9) ) = -2.3 + 5.9 = 3.6
5 0
3 years ago
Read 2 more answers
Other questions:
  • A student has gotten the following grades on his tests: 87, 95, 86, and 88. He needs to have an average of 90 to receive an A fo
    11·1 answer
  • S , U , N are collinear. Select the point that satisfies the definition of betweenness if NU + US = NS .
    13·2 answers
  • Pls help me it’s emergency plzz fast
    5·1 answer
  • A farmer is painting a new barn. He will need to calculate the surface area of the barn to purchase the correct amount of paint.
    10·1 answer
  • Determine the space (area) needed to build the new track.
    13·1 answer
  • I need help with this please. I don’t understand how to do this
    12·1 answer
  • Find the domain of<br><br><br><br> f(x)={-4x if x ≤ 0<br> { 4x+2 if &gt; 0
    14·1 answer
  • 1. A submarine is 40 meters below sea level. It goes up 12 meters, then goes down 30 meters. What is the submarine's new positio
    9·1 answer
  • Five times a number is 16 less than thirteen times the same number. Find the number.
    8·1 answer
  • Which number line represents the solution set for the inequality -1/2x&gt;4?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!