Answer:
x² + y² = 49
Step-by-step explanation:
The equation for a circle is: x² + y² = r²
here, we know our circle's radius (r) to be 7
So, the equation for our circle is: {replace "r" with value}
x² + y² = 7²
which can be simplified to:
x² + y² = 49
hope this helps!! have a lovely day :)
Ok so let me help you in here:
<span>After she pays $500 toward her medical expenses for the year, her insurance will pay 80% of the $12,500 cost. So
12,500 x .80 = 10,000. Then 12,500-10,000 = $2,500.
So you pay $2500 and the insurance company pays $10,000.
</span>Hope this is useful
Answer:
2 cm
Step-by-step explanation:
The red triangle has legs measuring 1.2 cm and 1.6 cm.
You need x, the length of the hypotenuse.
Use the Pythagorean theorem.
(1.2 cm)² + (1.6 cm)² = x²
4 cm² = x²
x = 2 cm
Answer: 2 cm
Answer:
Alex is 7, Bella is 11, and Carla is 14
Step-by-step explanation:
Equation is 32=y+2y+(y+4)
To solve:
First combine like terms (the y's)
32=4y+4
Subtract 4 from both sides
28=4y
Divide both sides by 4 to get y alone
7 =y (Alex's age)
Bella is 4 years older than Alex so 7+4 = 11
Carla is 2 times older than Alex so 2 • 7 = 14
Their ages are supposed to add up to 32.
7+11+14
18+14
32
Answer:
Step-by-step explanation:
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which ![C_{n,x}[\tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.[tex]C_{n,x} = \frac{n!}{x!(n-x)!}](https://tex.z-dn.net/?f=C_%7Bn%2Cx%7D%5B%5Ctex%5D%20is%20the%20number%20of%20different%20combinations%20of%20x%20objects%20from%20a%20set%20of%20n%20elements%2C%20given%20by%20the%20following%20formula.%3C%2Fp%3E%3Cp%3E%5Btex%5DC_%7Bn%2Cx%7D%20%3D%20%5Cfrac%7Bn%21%7D%7Bx%21%28n-x%29%21%7D)
And p is the probability of X happening.
In this problem, we have that:
Use the binomial probability formula to find the probability of xequals5 successes given the probability pequalsone fifth of success on a single trial.
This is P(X = 5).
