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MariettaO [177]
3 years ago
8

Which of the following relations is a function?

Mathematics
1 answer:
Mashcka [7]3 years ago
6 0

Answer:

oD is function

Step-by-step explanation:

(2,4),(-1,6),(-8,2),(2,3) is function

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License plates in a particular state consist of 4 digits followed by 2 uppercase letters
zubka84 [21]

Answer:

2,620,800  license plates can there be in this state if the first digit cannot be 2, and repetition of letters and numbers is not permitted.

Step-by-step explanation:

Here the licence plate has 4 numbers and 2 uppercase letters.

Given: The first two numbers CANNOT be 2.

           Repetition in NOT permitted.

Now, according to the question:

The available options in the first number = Any number other then 2

= <u>9 options.</u>

The available options in the Second  number = Any number other then 2  and the first number as  Repetition in NOT permitted.

= <u>8 options.</u>

The available options in the Third  number = Any number other then first     and second  number as  Repetition in NOT permitted.

= <u>8 options</u>

The available options in the Fourth number = Any number other then first     second and third number as  Repetition in NOT permitted.

= <u>7 options</u>

The available options in the Fifth place Alphabet =<u> 26 options</u>

The available options in the Fifth place Alphabet = Any number other then first alphabet  Repetition in NOT permitted.

<u>= 25 options</u>

<u />

So, the total number of options =   PRODUCT OF ALL POSSIBLE OPTIONS

= 9 x 8  x 8 x 7 x 26 x 25

= 2,620,800 options.

Hence, 2,620,800  license plates can there be in this state if the first digit cannot be 2, and repetition of letters and numbers is not permitted.

4 0
4 years ago
<img src="https://tex.z-dn.net/?f=4x%20%2B%202x%20%3D%2020%20%5C%5C%20x%20%2B%203x%20%3D%2050" id="TexFormula1" title="4x + 2x =
Zigmanuir [339]

Answer:

I think there is an error in the question, I assume it reads:

4x+2y=20

x+3y=50

If not, please make appropriate corrections to the question.

Answer: x=-4, y=18

Step-by-step explanation:

4x+2y=20

Simplify, divide by two,

2x+y=10.....................(1)

x+3y=50....................(2)

Multiply (2) by 2

2x+6y=100 ....................(2a)

Subtract (1) from (2a)

2x+6y - (2x+y) = 100 - 10

5y = 90

y=18..............................(3)

Substitute (3) into (1)

2x+(18)=10

2x = 10-18 =-8

x=-4  ............................(4)

Substitute (3) and (4) into (1) for verification

2x+y = 2(-4)+18 = 18-10 = 10   checks.

Substitute (3) and (4) into (2) for verification

x+3y=-4+3(18) = -4+54 = 50  checks.

Have a nice day!

8 0
3 years ago
HELP ASAP WILL AWARD BRAINLIEST Which relationship describes angles 1 and 2?
dusya [7]

Answer:

I think complementary angles

3 0
3 years ago
Read 2 more answers
What is x + 3 +2x =x + 3
algol13
X=0 bexause the 3s cancel out and your left with 2x=0 so x=0
8 0
3 years ago
Read 2 more answers
Sorin hits a cricket ball straight up into the air. After 1.5s, the ball is falling straight down with a speed of 6.5 m/s. We wa
sveticcg [70]

Step-by-step explanation:

We have, Sorin hits a cricket ball straight up into the air. After 1.5 s, the ball is falling straight down with a speed of 6.5 m/s.

We want to find the initial vertical velocity of the ball.

The relation between initial speed, final speed, acceleration and time is given by using first equation of kinematics. Let v₀ is the initial speed. So,

v=v_o +at

Here, v = -6.5 m/s, t = 1.5 s and a = -g

v_o=v-at\\\\v_o=v+gt\\\\v_o=-6.5+9.8\times 1.5\\\\v_o=8.2\ m/s

So, the initial velocity of the ball is 8.2 m/s and the formula used is (1).

4 0
4 years ago
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