Answer:
Step-by-step explanation:
First, start by converting 4 feet to inches. Note that 1 foot = 12 inches.
Set up a unit converter:
The ft cancel out leaving us with:
Now, we can set up a scale factor...
The temperature in your town is 31°F. The radio announcer says that the temperature will drop 15 degrees. What will the temperat
2 answers:
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Answer:
Therefore either a:b = 5:4 or a:b=-5:4
Step-by-step explanation:
ax²-5bx+4a=0
Since the quadratic equation has two real root.
Then b²-4ac>0
Here a= a , b= -5b and c=4a
∴(-5b)²-4.a.4a=0
⇔25b²=16a²
⇔5b=±4a
Therefore either a:b = 5:4 or a:b=-5:4
Answer:
Step-by-step explanation:
Given: An angle measures 51 degrees
To find: fraction of a circle by which the angle turn
Solution:
Angle at the centre in a circle is equal to one complete angle i.e.,
Measure of an angle
Therefore,
Fraction of a circle by which the angle turn = Measure of an angle/ Angle at the centre in a circle