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blondinia [14]
1 year ago
6

laura picks 7 apples. some apples are red and some are green. fewer than 4 of the apples are red. how many of lauras apples coul

d be green? explain how you know?​
Mathematics
2 answers:
Schach [20]1 year ago
8 0
4 or more apples could be green because if there are 3 or less red then there must be 4-7 green
Vikentia [17]1 year ago
6 0

Answer:

4, 5, 6 or 7.

Step-by-step explanation:

Given,

Total number of apples = 7,

Let x be the number of red apples,

Then the number of green apples = 7 - x,

According to the question,

x < 4

-x > -4

7-x > 7 - 4

7-x > 3

⇒ Number of green apples > 3,

Also, number of green apples ≤ 7

Thus, the number of green apples are more than 3 i.e. 4, 5, 6 or 7.

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In a test of a printed circuit board using a random test pattern, an array of 16 bits is equally likely to be 0 or 1. Assume the
Doss [256]

Answer:

A) b) and c) answer has been explained below.

Step-by-step explanation:

For the question would use 1's and 0's and taking probabilities to be equal for both using random test pattern whose formula is when p = q

then Simplify to

P[k] =  nCk /2^n

A.Probability that all bits are 1s

16c16/2^16 = 1/65536

B. Probability that all bits are 0s

16c0/2^16 = 1/65536

C.the probability that exactly 8 bits are 1s and 8 bits are 0s

16c8/2^16 = 12870/65536 =>0.1963 ≈ 19.63%

8 0
2 years ago
Each of these figures is based on a rectangle whose centre is shown.
NNADVOKAT [17]

The last 2 shapes.

When you rotate both of them 360 degrees only at 180 and back at 360 it looks same.

5 0
2 years ago
How many times is 0.02 contained in 80
Brrunno [24]

Answer: 4,000


Step-by-step explanation: ok so for this one we are seeing how many times 0.02 goes into 80 0.02*50=1 so then we would 50* 80 and get our answer of 4,000 hope this helped


8 0
2 years ago
On a coordinate plane, square P Q R S is shown. Point P is at (4, 2), point Q is at (8, 5), point R is at (5, 9), and point S is
sergey [27]

Answer:

(D)The midpoint of both diagonals is (4 and one-half, 5 and one-half), the slope of RP is 7, and the slope of SQ is Negative one-sevenths.

Step-by-step explanation:

  • Point P is at (4, 2),
  • Point Q is at (8, 5),
  • Point R is at (5, 9), and
  • Point S is at (1, 6)

Midpoint of SQ =\frac{1}{2}(1+8,5+6)=(4.5,5.5)

Midpoint of PR =\frac{1}{2}(4+5,2+9)=(4.5,5.5)

Now, we have established that the midpoints (point of bisection) are at the same point.

Two lines are perpendicular if the slope of one is the negative reciprocal of the other.

In option D

  • Slope of RP =7
  • Slope of SQ  =-\dfrac17

Therefore, lines RP and SQ are perpendicular.

Option D is the correct option.

6 0
2 years ago
What is the maximum vertical distance between the line y = x + 56 and the parabola y = x2 for −7 ≤ x ≤ 8?
atroni [7]
-7 and 8 are the solutions to the given equation system.
Therefore, the maximum distance between the y values of the two equations must lie exactly between their points of intersection. That is on x value:
x = (-7 + 8)/2 = 0.5
The maximum distance is:
y = 0.5 + 56 = 56.5
y = 0.5² = 0.25
56.5 - 0.25 = 56.25 units
5 0
1 year ago
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