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Scrat [10]
2 years ago
14

The mean of 4 numbers is 19. What would the new mean be if the number 30 is added to the data set?

Mathematics
1 answer:
german2 years ago
8 0

Answer:

B 21.2

Step-by-step explanation:

Im not sure at all tho. But I hope this helps :/

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makvit [3.9K]

Answer:

i think its x

Step-by-step explanation:

it looks simple yet intimidating

4 0
1 year ago
A) The hypotenuse of a right angled triangle is 15 cm. Taking the
Anastasy [175]

a) By Pythagoras theorem , h^2 is = a^2 + b^2 where a is the hypotenuse and a and b are the legs.

=) 15^2 = x^2 + y^2

That is the relation

b) area of triangle = 1/2 x height x base

=) 1/2 * x * y = 30

=) xy = 15cm

3 0
2 years ago
Marie, James, and George ran in a race. Marie finished in 1.54 minutes, James finished in 1.92 minutes, and George finished in 0
geniusboy [140]

Answer:

George, Marie, James

Step-by-step explanation:

Thats it

4 0
2 years ago
Determine the two ordered pair solutions of the equation y = 2x2 + 3x , given (0, ), and (-2, ).
Rudiy27

Answer:

We conclude that the two ordered pairs (0, 0) and (-2, 2) are the solutions of the equation y = 2x² + 3x.

Step-by-step explanation:

Given the expression

y = 2x² + 3x

Substituting x = 0

y = 2(0)² + 3(0)

y = 0+0

y = 0

  • so when x = 0, y = 0

Thus, the ordered pair is: (0, 0)

Now, substituting x = -2

y = 2x² + 3x

y = 2(-2)² + 3(-2)

y = 8 - 6

y = 2

  • so when x = -2, y = 2

Thus, the ordered pair is: (-2, 2)

Therefore, we conclude that the two ordered pairs (0, 0) and (-2, 2) are the solutions of the equation y = 2x² + 3x.

3 0
2 years ago
What percent id 25 of 100?
Cloud [144]
25/100 is equal to 25%.

Percents are always out of 100.
So 25/100 is 25%.

Hope this helped☺☺
6 0
3 years ago
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