To expand a bracket means to multiply each term in the bracket by the expression outside the bracket. For example, in the expression 3 ( m + 7 ) , multiply both. 3 ( m + 7 ) = 3 × m + 3 × 7 = 3 m + 21 .
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Hello!
Percents are parts of 100. In order to find percents, you put the part of a number over the whole of a number. In this case, you would put 32/250 (divide 32 by 250). You can also write and solve a proportion by writing 32/250 = x/100. This way, you can fine the percent for 32 out of 250. The answer is C.
Answer:
D. Always about the parameter only
Step-by-step explanation: A Null Hypothesis is a hypothesis used in statistics to show that there is no variation among the variables of interest. A Null Hypothesis also can be said to be giving a proposal that there is not significant difference between the observed data.
An alternative hypothesis is a hypothesis in statistics given contrary to the Null Hypothesis,a Null hypothesis can also be seen in statistics as stating that something is happening among the data.
Answer:
-4x + 3y = -12
Step-by-step explanation:
3y = 4x - 12
subtract -4x to both sides
-4x + 3y = -12
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Group the xs and the ys, 17+5= 22x 3+1=4y so y=4 and x=22.