Answer: your obviously going to need to use the method a2+b2=c2
Try to calculate the radius if not given to you.
Step-by-step explanation:
Answer:
483.56 square milimeters
Step-by-step explanation:
In the above question, we obtain the following information:
Slant height = 15mm
Radius = 7mm
π = 3.14
Since we are given the slant height ,
the formula for surface area of a cone = πrl + πr²
= πr (l + r)
= 3.14 × 7(15 + 7)
= 3.14 × 7( 22)
= 21.98(22)
= 483.56 square milimeters
Answer:
x + 25.75 ≥ 53.88
She needs to earn $28.13 more to buy the headphones.
Step-by-step explanation:
Hi, to answer this question we have to add the amount of money saved by Tania (25) and the amount of money she needs to earn (x). That expression must be higher or equal to the price of the headphones (53.88)
Mathematically speaking
x + 25.75 ≥ 53.88
Solving:
x ≥ 53.88 -25.75
x ≥ 28.13
She needs to earn $28.13 more to buy the headphones.
Feel free to ask for more if needed or if you did not understand something.
1.5 kg is 3/4 of 2 kg. Thus we do 4.8*3/4=3.6 or $3.60
Answer:
The final answers are x = 10.385 OR x = -0.385
Step-by-step explanation:
Given the equation is x^2 -4 = 10x
Rewriting it in quadratic form as:- x^2 -10x -4 = 0.
a = 1, b = -10, c = -4.
Using Quadratic formula as follows:- x = ( -b ± √(b² -4ac) ) / (2a)
x = ( 10 ± √(100 -4*1*-4) ) / (2*1)
x = ( 10 ± √(100 +16) ) / (2)
x = ( 10 ± √(116) ) / (2)
x = ( 10 ± 10.77 ) / (2)
x = ( 10 + 10.77 ) / (2) OR x = ( 10 - 10.77 ) / (2)
x = 20.77/2 OR x = -0.77/2
x = 10.385 OR x = -0.385
Hence, final answers are x = 10.385 OR x = -0.385