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andreyandreev [35.5K]
3 years ago
9

Suppose x+y=11 and the value of x increases by2 2. if their sum remains the same, what mjst happen to the value of y? justify yo

ur response.
Mathematics
1 answer:
garri49 [273]3 years ago
7 0
So x+4=11 bc 2 to the second power is 4
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10.) Find values of x and y for which ABCD must
Law Incorporation [45]

Answer:

B x=2 y=6

Step-by-step explanation:

For ABCD to be parallelogram, following conditions should be satisfied:

2x - 0 = x + 2 & 4y - 8 = y + 10

2x - 0 = x + 2

2x - x = 2

x = 2

4y - 8 = y + 10

4y - y = 10 + 8

3y = 18

y = 18/3

y = 6

5 0
3 years ago
The sides of a hexagon are 2, 3, 2, 4, 7, and 6. Find the perimeter of a similar hexagon with two sides of length 3.
Basile [38]

The first hexagon: 2, 2, 3, 4, 6, 7

The second hexagon: 3, 3, a, b, c, d

The hexagons are similar. Therefore the sides are in proportion.

\dfrac{a}{3}=\dfrac{3}{2}     <em>multiply both sides by 3</em>

a=\dfrac{3}{2}=4.5

\dfrac{b}{4}=\dfrac{3}{2}    <em>multiply both sides by 4</em>

b=\dfrac{3}{2}\cdot4=6

\dfrac{c}{6}=\dfrac{3}{2}     <em>multiply both sides by 6</em>

c=\dfrac{3}{2}\cdot6=9

\dfrac{d}{7}=\dfrac{3}{2}    <em>multiply both sides by 7</em>

d=\dfrac{21}{2}=10.5

The perimeter:

P=4.5+6+9+10.5=30

6 0
3 years ago
Read 2 more answers
The circumfrence of a circle with the diameter of 5 cm is 15.7. What is the ratio of the circumfrence to the diameter?
Alex Ar [27]

Divide the circumference over the diameter

(circumference)/(diameter) = (15.7)/(5) = 3.14

This is approximately equal to pi

8 0
3 years ago
Each year the local country club sponsors a thumb-wrestling tournament. Play starts with 160 participants. During each round, ha
Harrizon [31]

Answer: 5

Step-by-step explanation:

160/2= 80   1

80/2= 40     2

40/2=20      3

20/2=10       4

10/2=5          [5]

5 0
2 years ago
Rework problem 17 from section 4.1 of your text about a multiple-choice test in which each question has 4 choices only one of wh
12345 [234]

Answer:

probability that exactly 4 out of 9 questions are correct   is 0.111

Step-by-step explanation:

Given data:

Test consist of multiple choice question which as 4 choices

Total number of answer randomly = 9

Probability of having 4 answer correctly is calculated as

p = probability of having particular question is answered in correct way  

  = 1/4 = 0.25

q = probability of having particular question is answered incorrectly  

  = 3/4 = 0.75

Binomial expansion is beneficial in various situations at which   numerical  variables are present that are countable or whole numbers 

probability that exactly 4 out of 9 questions are correct  

 = ^9C_4 (0.25)^4 (0.75)^5

  = 120\ times 0.00390 \times 0.2373

   = 0.111

7 0
3 years ago
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