For part a, y < x y > -2xPoint B: (3,1) plugin
x=3, y=1
y < x 1 < 3which is true, so point B satisfies the first inequality.
You can graph the inequality y > 2x+5 and see which schools are in the shaded region.
Answer:
I agree with Claire's representation. Sea level is considered as zero, going up in the number line is positive and going down in the number line is negative.
The location 10 feet above sea level is correct. We have to count 10 spaces going upwards from zero. This location is represented by the integer 10.
The location 10 feet below sea level is correct. We have to count 10 spaces going downwards from zero. This location is represented by the integer -10.
Step-by-step explanation:
The attached picture shows two points:
The red point represents 10 feet above sea level. (Integer: 10)
The blue point represents 10 feet below sea level. (Integer: -10)
Sea level is zero.
Answer:
r=8.66025403784
Step-by-step explanation:
7065=π(r squared)X30
7065=94.2(r squared)
7065÷94.2=r squared
√75=r squared
8.66025403784=r
Answer:
- 5·$3.50 +4d = $163.50
- d = $(163.50 -5·3.50)/4 = $36.50
Step-by-step explanation:
The total purchase amount is the sum of the products of the cost of an item times the number of that item. For 5 items costing $3.50 each and 4 items costing "d" each, the total purchase amount is ...
5·$3.50 +4·d = $163.50
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This is solved by undoing what is done to the variable. The variable is multiplied by 4 and a quantity added to that product. We undo these operations in reverse order.
First we subtract the added quantity:
4d = $163.50 -5·3.50 = $146.00
Then we undo the multiplication by dividing by the coefficient of d:
4d/4 = $146.0/4
d = $36.50
The cost of one pair of shoes is $36.50.
Answer:
-2 4x square is the answer