All categories

2 years ago

HELP PLEASE!! Which of the following equations is true to find the length BC?

Mathematics

1 answer:

jarptica [38.1K]2 years ago

8 0

Answer:

BC/sin 23 = 10/sin 47

Step-by-step explanation:

Here, we want to select the true equation to find the length BC

From the question, we have the angle facing side BC; also, we have the angle and the side facing it for another side

In this situation, the best way to solve for BC is by the use of the sine rule

The sine rule states that the ratio of the length of a side and the sine of the angle facing the side is constant for a given triangle

Thus, we have it that;

BC/sin 23 = 10/sin 47

You might be interested in

Find sum or difference. 1/6 + 3/8 A. 4/6 B. 4/8 C. 4/14 D. 13/24

Vaselesa [24]

1/6 + 3/8
= 4/24 + 9/24
= 13/24

answer
D. 13/24

7 0

3 years ago

Read 2 more answers

consider a sequence of independent tosses of a biased coin at times k=0,1,2,…,n. On each toss, the probability of Heads is p, an

omeli [17]

Answer:

1. p*(1-p)

2. n*p*(1-p)

3. p*(1-p)

4. 0

5. p^2*(1-p)^2

6. 57/64

Step-by-step explanation:

1. Let Ik denote the reward (possibly 0) given at time k, for k∈{1,2,…,n}. Find E[Ik].

E[Ik]= p*(1-p)

2. Using the answer to part 1, find E[R].

E[R]= n*p*(1-p)

The variance calculation is more involved because the random variables I1,I2,…,In are not independent. We begin by computing the following values.

3. If k∈{1,2,…,n}, then

E[I2k]= p*(1-p)

4. If k∈{1,2,…,n−1}, then

E[IkIk+1]= 0

5. If k≥1, ℓ≥2, and k+ℓ≤n, then

E[IkIk+ℓ]= p^2*(1-p)^2

6. Using the results above, calculate the numerical value of var(R) assuming that p=3/4, n=10.

var(R)= 57/64

5 0

2 years ago

Find the rate of change that represents the relationship in the table:

crimeas [40]

Answer:

C. 8/1 (simplified is 8)

Step-by-step explanation:

X rate of change= +1

Y rate of change= +8

Y over X

8/1

7 0

2 years ago

Read 2 more answers

The cost price of 18 sweaters is Rs425 per sweater and the total gain of the shopkeeper is Rs 6,750 1 find the sale price of eac

Nostrana [21]

Answer:

1. Sales price per sweater= Rs 800

2. percentage = 46.875% = 46.88%

Step-by-step explanation:

Given;

Cost price = Rs425 per sweater

Number of sweaters = 18

Total gain = Rs 6,750

Total cost price = cost price × number of sweaters

Total cost price = 18 × Rs425 = Rs 7,650

Total sales price = total gain + total cost price

Total sales price = Rs 6,750 + Rs 7,650

Total sales price = Rs 14,400

Sales price (per sweater) = Rs 14,400/18 = Rs 800 per sweater

Profit percentage = total gain/total sales price × 100%

Profit percentage = Rs 6,750/Rs 14,400 × 100%

Profit percentage = 46.875% = 46.88%

8 0

3 years ago

How to find two fractions between 8/10 and 5/4

TiliK225 [7]

LCM of 10 & 4 = 20
8/10 * 2 & 5/4*5
16/20 & 25/20

THE 2 RATIONAL NUMBERS BETWEEN 16/20 & 25/20 ARE
17/20,18/20 ect

7 0

2 years ago

Read 2 more answers