Answer:
- number of hours on video games and test scores
- average running speed and total race time
- outside temperature and amount of a heating bill
Step-by-step explanation:
1. number of hours on video games and test scores (negative correlation - as you spend <em>more</em> hours on video games, test scores might <em>decrease</em>)
2. speed of a car and minimum stopping distance (positive correlation - as the distance to the next stop <em>increases</em>, the speed of the car should <em>increase</em>)
3. average running speed and total race time (negative correlation - as you run for <em>longer</em>, your speed should <em>decrease</em>)
4. adult’s head circumference and age (positive correlation - as your age <em>increases</em>, your head size <em>increases</em>, too)
5. outside temperature and amount of a heating bill (negative correlation - as temperature <em>increases</em>, the heating bill <em>decreases</em>)
Answer:
x = 75
Step-by-step explanation:
Triangle BDH
The angle must add to 180 degrees
36+ 39 + DHB = 180
75 + DHB = 180
DBH = 180-75
DHB = 105
DBH + x = 180 since it is a straight line
105+ x = 180
x = 75
<span>A 48 inch by 36 inch poster is reduced to an image that is 8 inch by 6 inch in size to be used for a flyer. What is the scale factor?
48/8 = 6 and 36/6 = 6
so SF = 6
Answer:
</span><span>D. 6
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</span><span>Given that measure of arc AF = 100º, arc = BD = 154º and arc AD = 40º.
What is the measure of ∠ AED?
<BED = 1/2(154 + 100) = 127</span>°
<AED = 180° - 127° = 53°
Anwser
<span>
B.53
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</span><span>What is DC if AC = 10 cm, BC = 6 cm, and EC = 12 cm?
Lets DC = x
so
10 * 6 = 12x
60 = 12x
x = 5
Answer:
A.5
</span>
Answer:
Closes this module. Sal solves a word problem where he finds the cost of gas in a road trip given the car's fuel efficiency, length of the trip, and price of gas. Created by Sal Khan. This is the currently selected item. Posted 5 years ago. Direct link to Jonathan Haroun's post “Why is "x per y" the same thing as "x/y"?”
Step-by-step explanation:
Answer:
Hence the answer is -19
Step-by-step explanation:
=-3+ (-14) - (-2) – 4
first of all multiply all the sign we get
=-3-14+2-4
=-19