2 years ago

Which statement is correct?

Mathematics

1 answer:

MakcuM [25]2 years ago

3 0

Answer:

the third 1

Step-by-step explanation:

You might be interested in

The 10th term of an a.p is -27 and the 5th term is -12 .find the first term?

horsena [70]

Step-by-step explanation:

$a_{10} = - 27... (Given) \\\\\therefore a + 9d = - 27...... (1)\\\\a_{5} = - 12... (Given) \\\\\therefore a + 4d = - 12.......(2)\\\\$

Subtracting equation (2) from equation (1)

$a + 9d-( a + 4d )= - 27-(-12)\\\\\therefore a +9d - a-4d = - 27+12\\\\\therefore 5d = - 15\\\\\therefore d = \frac {- 15}{5}\\\\\huge \orange {\boxed {\therefore d = -3}} \\\\$

Substituting d = - 3 in equation (1), we find:

$a + 9\times (-3)= - 27\\\\\therefore a - 27 = - 27\\\\\therefore a = 27- 27\\\\\huge \red {\boxed {\therefore a = 0}}\\\\$

Hence, first term is zero.

3 0

3 years ago

A locker requires a three-digit code to open the lock. The code must contain one letter and two numbers, and no letter or number

mixas84 [53]

A locker requires a three-digit code to open the lock. The code must contain one letter and two numbers, and no letter or number can be repeated. You can choose from among four letters, A, B, C, and D, and two numbers, 5 and 6.

The size of the sample space is: (8, 16, 20, 24)

If a code is chosen at random, the probability that it has a letter that immediately follows an odd number is: (1/8, 1/6, 1/3, 2/5, 2/3)

If a code is chosen at random, the probability that D is in the code but is not in the first position is: (1/8, 1/6, 1/3, 2/5, 2/3)

5 0

2 years ago

Read 2 more answers

Find the value of x so that the function has the given value. 2(x) = 2x + 7; n(x) = 17

Galina-37 [17]

Answer:

x = 5

Step-by-step explanation:

Maybe you have ...

n(x) = 2x +7

and you want x for n(x) = 17.

17 = 2x +7

10 = 2x . . . . . . subtract 7

5 = x . . . . . . . . divide by 2

7 0

3 years ago

If y varies inversely with the square of x, and y = 26 when x = 4, find y when x = 2. Question 20 options: A) 52 B) 13 C) 208

babymother [125]

I believe your answer is A.

8 0

2 years ago

What is an equation of the line that passes through the point (1,−7) and is parallel to the line 3x+y=3

levacccp [35]

If I’m not wrong, I got y=-3x-4

6 0

3 years ago