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lawyer [7]
3 years ago
9

Jackson flipped a coin ten times. He flipped heads 4 times and tails 6 times. What is the experimental probability that Jackson

will flip heads on his next flip?
Mathematics
1 answer:
ololo11 [35]3 years ago
4 0
1/2 because there are 2 options , heads or tails
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a restaurant holds an anniversary celebration of 90 diners. Only 27 are offered free dessert, what is the percent of dinners not
alex41 [277]

Answer:

70%

Step-by-step explanation:

(90-27)/90

=63/90

=0.7

Changing it to percentage:

=70%

6 0
3 years ago
How many solutions does the equation have<br> y=2x^2+3x-10=0
Natali [406]

Answer:it has two

Step-by-step explanation: x =(3-√89)/4=-1.608

x =(3+√89)/4= 3.108

8 0
3 years ago
The graph shows the result of a matrix transformation, where the pre-image has dashed lines Which matrix operation is represente
diamong [38]

The <em>matrix operation</em> is the <em>addition subtraction </em>and <em>multiplication </em>involving matrices.  The coordinates of the <em>image </em>can be represented as a matrix obtained from the coordinates of the <em>preimage </em>through matrix operations

The best correct option is<u> option D)</u>,<em> (the y-coordinate for the point (8, -7) is to be replaced with a 7 to give (7, -7) as follows</em>:

\left[\begin{array}{rrrr}1&0\\0&-1\end{array}\right] \left[\begin{array}{rrrr}9&7&3&2\\-3&-7&-7&-5\end{array}\right]

The reason the above matrix value for the matrix operation are correct are as follows:

Known parameters:

From the diagram, we have that the <em>coordinates</em> of the vertices of the preimage are;

(2, -5), (3, -7), (9, -3), and (7, -7)

The <em>coordinates </em>of the vertices of the image are;

(2, 5), (3, 7), (9, 3), and (7, 7)

Required:

The matrix operation for the transformation of the preimage points to the image points

Solution:

The transformation from the coordinates of the vertices of primage to the  vertices of image involves the change in the sign from negative to positive, of the y-values of the image, which can be obtained by <em>multiplying by</em> (-1)

Therefore, the required matrix operation is presented as follows:

\mathbf{\left[\begin{array}{rrrr}1&0\\0&-1\end{array}\right] \left[\begin{array}{rrrr}9&7&3&2\\-3&-7&-7&-5\end{array}\right]} =\left[\begin{array}{rrrr}9&7&3&2\\3&7&7&5\end{array}\right]

Therefore, the <em>best correct</em> option is option D)

Learn more about matrix operations here:

brainly.com/question/17141646

3 0
3 years ago
Convert 86 to a z-score
Semmy [17]

Answer:

Step-by-step explanation:--0.9

5 0
3 years ago
Help me please cuz some people are senting link when I ask them to not
vladimir2022 [97]

Answer:

the change is 8.4 degrees

Step-by-step explanation:

1.2x7=8.4

3 0
3 years ago
Read 2 more answers
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