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Marina CMI [18]
3 years ago
5

Which of the following relations is a function?

Mathematics
1 answer:
LiRa [457]3 years ago
7 0

Answer:

C.

Step-by-step explanation:

C. (-7, 2), (-1, 3), (4,7), (7,2)

The values of x are not repeating, so this is a function, because for every x has only one corresponding value of y.

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P pennies added to 22 pennies
taurus [48]
23 Pennie’s is the answer I believe
7 0
2 years ago
The quadrilateral ABCD has area of 58 in2 and diagonal AC = 14.5 in. Find the length of diagonal BD if AC ⊥ BD.
azamat

Answer:

(look in the the Step by step)

Step-by-step explanation:

When the diagonals of a quadrilateral are perpendicular, the area of that quadrilateral is half the product of their lengths.

.. A = (1/2)*d₁*d₂

Substituting the given information, this becomes

.. 58 in² = (1/2)*(14.5 in)*d₂

.. 2*58/14.5 in = d₂ = 8 in

The length of diagonal BD is 8 in.

4 0
2 years ago
A ball is dropped from the top of a building that is 250 feet tall. The
Virty [35]

hi

-16t²+250 = 75

-16t² = 75 -250

-16t² = -175

  t² = -175 /-16

 t² = 175/16

Here there si two solutions :  t = \sqrt{175/16}   and  t =  - \sqrt{175/16}

However, as time cannot rewind,  we will  keep only positive solution

So t = \sqrt{175/16}

   

in seconds  it will be  :  3.3 seconds

3 0
3 years ago
A number is selected from the set (1, 2, 3, 5, 15, 21, 29, 38, 500). If equal elemental probabilities are assigned, what is
Katen [24]

Answer:

\frac{7}{9} OR 77.78%

Step-by-step explanation:

So, we first need to find out how many numbers fit the "less than 29 or odd" group.

This would be: 1, 2, 3, 5, 15, 21, and 29, which is a total of 7 numbers.

Next, we figure out the total amount of numbers in the population.

This would be: 1, 2, 3, 5, 15, 21, 29, 38, and 500, which is a total of 9 numbers.

Finally, we put the first number (7) over the total (9) = \frac{7}{9}

\frac{7}{9} is now able to be written in a percentage, if you need.

The probability is \frac{7}{9} OR 77.78%

5 0
3 years ago
Please help! Given the function problem
dedylja [7]

Answer:

B

Step-by-step explanation:

So we have the function:

f(x)=\frac{9}{5}x+32

To find the inverse, flip f(x) and x, change f(x) to f⁻¹(x), and solve for it. Thus:

x=\frac{9}{5}f^{-1}(x)+32

Subtract 32 from both sides:

x-32=\frac{9}{5}f^{-1}(x)

Multiply both sides by 5/9. The right side will cancel. Thus:

f^{-1}(x)=\frac{5}{9}(x-32)

Our answer is B.

And we're done!

7 0
3 years ago
Read 2 more answers
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