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3 years ago

Question involving radius and arcs. need help

Mathematics

1 answer:

zvonat [6]3 years ago

6 0

80 degrees!!!!!!!!!!!!!!!!!!!!!!

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3 2/3 as a decimal <br><br> Please help need to now

Ratling [72]

2/3= 0.6

3.06 would be the answer I believe.

Hope this Helps!!

5 0

4 years ago

Read 2 more answers

The projected value (in millions of dollars) of a large manufacturing company is modeled by the function V(t) - 230(1.12)', wher

Natali5045456 [20]

Answer:

The value of the company in 2018

Step-by-step explanation:

we know that

The equation of a exponential growth function is equal to

$V(t)=a(1+r)^t$

where

V(t) is the value of the company

t is the number of years after 2018

a is the initial value or y-intercept

r is the rate of change

we have

$a=230\\1+r=1.12\\r=1.12-1\\r=0.12\\r=12\%$

230 is the value of the company when the value of t is equal to zero

Remember that

t is the number of years since 2018

therefore

230 is the value of the company in 2018

3 0

3 years ago

Find the x-intercept and the y-intercept of the graph of the equation. <br> 6 x + 4 y = 24

katrin [286]

X intercept =6
Y intercept=4

6 0

3 years ago

Twice a number decreased by 20 is 50. What is that number

castortr0y [4]

2(n-20)=50
n-20=25

n=45

8 0

3 years ago

Read 2 more answers

The Wilson family had 5 children. Assuming that the probability of a child being a girl is 0.5, find the probability that the Wi

Dafna11 [192]

Answer:

0.813

0.500

Step-by-step explanation:

Use binomial probability.

P = nCr p^r q^(n−r)

where n is the number of trials,

r is the number of successes,

p is the probability of success,

and q is the probability of failure (1−p).

In this problem, n = 5, p = 0.5, and q = 0.5.

"At least 2 girls" means r = 2, 3, 4, or 5.

Or, we can use the complement.

P(at least 2 girls) = 1 − P(at most 1 girl)

P(at least 2 girls) = 1 − P(r=0 or r=1)

P(at least 2 girls) = 1 − ₅C₁ (0.5)¹ (0.5)⁵⁻¹ − ₅C₀ (0.5)⁰ (0.5)⁵⁻⁰

P(at least 2 girls) = 1 − 5 (0.5) (0.5)⁴ − 1 (1) (0.5)⁵

P(at least 2 girls) = 1 − 6 (0.5)⁵

P(at least 2 girls) ≈ 0.813

"At most 2 girls" means r = 0, 1, or 2.

P(at most 2 girls) = P(r=0, r=1, or r=2)

P(at most 2 girls) = ₅C₀ (0.5)⁰ (0.5)⁵⁻⁰ + ₅C₁ (0.5)¹ (0.5)⁵⁻¹ + ₅C₂ (0.5)² (0.5)⁵⁻²

P(at most 2 girls) = 1 (1) (0.5)⁵ + 5 (0.5) (0.5)⁴ + 10 (0.5)² (0.5)³

P(at most 2 girls) = 16 (0.5)⁵

P(at most 2 girls) = 0.500

4 0

3 years ago