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tester [92]
3 years ago
8

Is -18.75 a real number,irrational,rational,integer,whole or natural? it can be more than one choice

Mathematics
1 answer:
Morgarella [4.7K]3 years ago
4 0
It's irrational, number and intiger
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Rewrite each fraction with a denominator of 10 7/2 3/5
Vaselesa [24]

Answer:

  • \frac{7}{2}=\frac{35}{10}
  • \frac{3}{5}=\frac{6}{10}

Step-by-step explanation:

Given the fraction

\frac{7}{2}

Multiplying numerator and denominator by 5

\frac{7}{2}\times \frac{5}{5}

=\frac{35}{10}

Therefore,

  • \frac{7}{2}=\frac{35}{10}

Similarly,

Given the fraction

\frac{3}{5}

Multiplying numerator and denominator by 2

\:\frac{3}{5}\times \:\frac{2}{2}

\frac{3}{5}\times \:\frac{2}{2}=\frac{6}{10}

Therefore,

  • \frac{3}{5}=\frac{6}{10}
8 0
3 years ago
On a coordinate plane, point B is at (1, negative 1). Point B has coordinate B(1, –1). What is the coordinate of B' under a scal
Ray Of Light [21]

Answer:

(3,-3)

Step-by-step explanation:

If a coordinate (x, y) is dilated by a factor k, the resulting coordinate will be (kx, ky)

Given the coordinate (1, -1), if dilated by a factor of 3, the resulting coordinate will be (3(1), 3(-1)) = (3, -3)

Hence the required coordinate will be (3,-3)

6 0
3 years ago
Karl’s math class is playing a number game. Each student is given a number card containing the numbers 1 to 6. The rules of the
Lena [83]

By finding the probability, we can expect that 2 out of the 30 students will win the prize.

<h3>How many of the 30 students will win the prize?</h3>

First, we should get the probability of winning this game.

Here the students select two numbers out of 6, just to make the calculations let's say that these numbers are 1 and 2.

Now, we need to get these two numbers in two balls. The probability of getting the ball with the number 1 out of the 6 balls is:

p = 1/6

The probability of getting the ball with the number 2 out of the remaining 5 balls (because we already got one) is:

q = 1/5

The joint probability is then:

P = 2*(1/6)*(1/5) = 1/15.

Where the factor 2 comes to take in account the permutations, for the case where we first draw the number 2 and then the number 1.

Then the expected number of students that will win is equal to the probability times the total number of students:

(1/15)*30 = 2

So out of the 30 students, we can expect that 2 will win.

If you want to learn more about probability:

brainly.com/question/25870256

#SPJ1

8 0
2 years ago
-5x= -15 solve for x
cricket20 [7]

Answer:x=3

Step-by-step explanation:

-5x=-15

divide by -5

x=3

7 0
3 years ago
Read 2 more answers
0.0084 scientific notation
kogti [31]

Answer:

8.4*10^-3

Step-by-step explanation:

Move the decimal point 3 places in order to get a number in the one's place.

7 0
3 years ago
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