Answer:
120
Step-by-step explanation:
add 50+10=60
then 180-60=120
Answer:
(AD)=SQRT(20n^2+34-4n)
Step-by-step explanation:
let the point of intersection between AC and DB be O. Then the length of OA is the same as that of OC which is=2n+5
Similarly the length of DO is the same as that of OB which is=4n-3
Now from Pathagoras theorem we get
(AD)=SQRT((DO)^2+(OA)^2)
(AD)=SQRT((4N-3)^2+(2N+5)^2)
(AD)=SQRT((16n^2+9-24n)+(4n^2+25+20n))
(AD)=SQRT(20n^2+34-4n)
B. (k+10f)(k-5f) you can tell in 2 ways. 1. if the second sign is neg then the signs in the factors are going to be one neg and one positive so that knocks out C and D. Then you look at the second term and since the 5 is positive then the 10 has to be positive so you end up with a positive 5kf.
The second way is to FOIL them out. When you check B you get
combine your like terms and you have your original expression of
Hope that helps
Answer:
21
Step-by-step explanation:
Volume of Rectangular Prism: LWH: Length * Width * Height
Volume of Rectangular Prism:
=> You can convert<u> mixed fractions into improper fractions</u> by the following steps so it's easier to solve the equation:
- Multiply the denominator of the mixed fraction by the whole number given on the left of the fraction.
- Add the number you get by the numerator of the fraction and, the answer you get will be your numerator for the improper fraction, keep the denominator similar to what it was in the mixed fraction.
=> would be as an improper fraction; would be as an improper fraction. Whereas 4 would remain the same since it's a whole number.
=> Now, multiple everything together: () * (4) * ()
<u>The answer would be 21!</u>
Hope this helps!
Chord length = 2√r²-d²
r= radius of the circle
d= perpendicular distance from the chord to the circle center.
Example:
radius = 5cm
distance = 4cm
2√5²-4²
=2√25-16
=2√9
=2×3
=6cm
Answer: 6 cm.
Hope this helped!