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3 years ago

Find the length of BC

Mathematics

2 answers:

Firdavs [7]3 years ago

5 0

Answer:

Use tangent ratio (type in calculator)

Step-by-step explanation:

tan of 54 * 39 = 53.68

aev [14]3 years ago

5 0

Answer:

A: 53.68

Step-by-step explanation:

To find the length of BC use the tangent formula because that's the only one that makes sense.

To solve this though, write this

Tan 54 = x/39

Put 39 on the other side

39 tan 54

Then put parenthesis around 54

39 tan(54)

Now use your calculator and type in 39 tan(54)

As your final answer, you will get 53.68

So the length of BC is 53.68.

Hope it helped! This answer is expert verified.

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You have two jobs. one job pays $8 per hour and the other pays $6 per hour. you worked 20 hours total last week and earned $136.

wel

The question being the case, the equation is: 8x + 6y = 136.
Where x is the number of hours spent on job A and y is the number of house spent on job B. Now to solve for both variables.
Notice that if you add x and y, you should get a total of 20 hours so x + y = 20.
To get x, x = 20 - y. Replace the answer on the original equation gives you 8(20-y) + 6y = 136.
160 - 8y + 6y = 136
160 - 2y = 136
-2y = 136 - 160
-2y = -24
<span>Solve for y by dividing both sides of this equation by -2 to get y:
y = 12
Replace y on the x + y = 20 equation to get x.
x + 12 = 20
x = 20 = 12
x = 8

Therefore:
x = 8 hours on job A
y = 12 hours on job B

Hope this helps!</span>

7 0

4 years ago

What is the solution of StartRoot 1 minus 3 x EndRoot = x + 3 ?

zubka84 [21]

First square both sides

1-3x=(x+3)^2 use foil to unfactor it
1-3x=x^2+6x+9 subtract 1 from both sides
-3x=x^2+6x+8 add 3x to both sides
0=x^2+9x+8

Now that we got it equal to zero you have to factor the new trinomial

0=(x+1)(x+8)

Now since both are being multiplied by each other, if you get 1 of them to equal zero then both equal zero since 0 times anything equals 0.

So your solutions are x=-8 and x=-1

Brainliest my answer if it helps you out?

7 0

3 years ago

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Four times a number minus five, is equal to three times a number plus three

Oliga [24]

Answer:

4x-5=3x+3

Step-by-step explanation:

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3 years ago

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How many ways are there to choose a soccer team consisting of 3 forwards, 4 midfield players, and 3 defensive players, if the pl

klio [65]

Using the combination formula, it is found that there are 47,040 ways to form a soccer team.

<h3>What is the combination formula?</h3>

Each of the different groups or selections can be formed by taking some or all of a number of objects, irrespective of their arrangments is called a combination.

$^mC_k = \dfrac{m!}{k! \times (m-k)!}$

A soccer team consisting of 3 forwards, 4 midfield players, and 3 defensive players, if the players are chosen from 8 forwards, 6 midfield players and 8 defensive players

Since they are independent of each other, the total number of combinations will be;

$^mC_k = \dfrac{8!}{3! \times (5)!} \times \dfrac{6!}{4! \times (2)!} \times \dfrac{8!}{3! \times (5)!} \\\\^mC_k =47,040$

Hence, There are 47,040 ways to form a soccer team.

More can be learned about the combination at brainly.com/question/25821700

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7 0

2 years ago

Ami and Ria are playing a game where one of them would pick up a card and the other would guess the number. Ami picked up a card

Greeley [361]

Answer:

$\huge \boxed{\mathrm{\bold{D.} \ 315}}$

Step-by-step explanation:

Odd numbers from the list are 75, 189, and 315.

75, 189, and 315, are composite numbers.

Prime factorization of 75 = 3 × 5 × 5

Prime factorization of 189 = 3 × 3 × 3 × 7

Prime factorization of 315 = 3 × 3 × 5 × 7

315 is an odd number, and a composite number that is divisible by 3 different prime numbers.

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4 years ago

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