Answer: X = 7√2
Step-by-step explanation:
Let first Consider triangle BDC,
Cos C = adjacent/ hypothenus
Cos C = 7 / x ...... (1)
Also, let consider triangle ABC
Cos C = adjacent / hypothenus
Cos C = x / 14 ....... (2)
Since angle C is the same, equate equation 1 to 2
7/ x = x / 14
Cross multiply
X^2 = 98
Make x the subject of formula
X = sqrt (98)
X = sqrt ( 49 × 2 )
X = sqrt (49) × sqrt (2)
X = 7 sqrt(2)
X = 7√2
Answer:
the answer is 2.9 x 10^0 and 3.2 x 10^-2
Step-by-step explanation:
10^0 is equal to 1 so 2.9 x 10^0 is really 2.9 times 1 which is less than 3
if i could get brainliest answer that would be great!
10^-2 is a exponential that makes a number go down so 3.2 going down is less than 3
Answer:
493.2 · 10⁸
Step-by-step explanation:
1 person = 180 bars
274,000,000 people · 180 bars per person
274,000,000 can be simplified to 274 · 10⁶
274 · 180 = 49320 · 10⁶
Now transferring this to scientific notation by moving the decimal two spaces to the left
493.2 · 10⁶ + 10² The 10² is for the two spaces to the left
493.2 · 10⁸
Find the greatest common multiple of 12 and 8 is 4
