1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kolezko [41]
2 years ago
14

Please help and explain

Mathematics
2 answers:
nexus9112 [7]2 years ago
6 0

Answer:

x = 7

Angle B = 81°

Angle C = 21°

Step-by-step explanation:

The sum of the Interior angles of a Triangle add up to 180°

Therefore it is safe to say

Angle A + Angle B + Angle C = 180°

Now we can substitute in our values:

78° + 11x° + 4° + 3x° = 180°

Add like terms:

82° + 14x = 180°

Minus 82° from both sides:

14x = 180° - 82°

14x = 98°

Divide both sides by 14

x = 98°/14

x = 7°

If x = 7°

Angle B = 11(7)° + 4° = 81°

Angle C = 3(7)° = 21°

To double check your answer

Angle A + Angle B + Angle C = 180°

78° + 81° + 21° = 180°

Brainliest?

bagirrra123 [75]2 years ago
5 0

Answer:

See below

Step-by-step explanation:

The three angles inside of the triangle sum to 180

11x + 4       + 3x      + 78 = 180

14x +82 =180

x = 7

then B =   11x + 4    = 11(7) + 4 = 81 degrees

C =  3x = 21 degrees

You might be interested in
What is the balance after 15 years in a savings account that earns 2% interest compounded bimonthly when the initial deposit is
Ierofanga [76]

Answer:

$1348.07

Step-by-step explanation:

Hello!

<h3>Compound Interest Formula: A = P(1 + \frac rn)^{nt}</h3>
  • A = Account Balance
  • P = Principle/Initial Amount
  • r = Rate of Interest (decimal)
  • n = Number of times compounded (per year)
  • t = Number of Years

<h3>Given Information</h3>
  • Account Balance = ?
  • Principle Amount = $1000
  • Rate of Interest = 0.02

Why is the Rate 0.02?

This is because we are gaining money, so the multiplier should be greater than 1. We already added 1, which is 100% so you simply add the 0.02 for the extra 2%.

  • Number of times compounded per year = 6

This is because it is being compounded bi-monthly, or once every 2 months. 12 months divided by 2 months is 6 months, so 6 times a year.

  • Number of years = 15

<h2>Solve </h2>

Solve by plugging in the given values into the formula.

  • A = P(1 + \frac rn)^{nt}
  • A = 1000(1 + \frac {0.02}{6})^{6*15}
  • A = 1000(1 + 0.00333...)^{90}
  • A = 1000(1.00333...)^{90}
  • A = 1000(1.145743)
  • A \approx 1457.43

This is really close to the first option, and since there is rounding involved with the repeating decimal, the first option should be correct.

The answer is $1348.07.

3 0
2 years ago
What are the names of the two angles? *
Vika [28.1K]

Answer:

C or the 3rd one

Step-by-step explanation:

7 0
3 years ago
Jasmine is 12 years old. Her father is three times older. How old is Jasmine’s father?
Alenkinab [10]

Answer:

36

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Please help how to make an array for prime number of 19. and 13<br><br><br><br><br>​
topjm [15]

Answer:

Prime numbers are numbers that cannot be divided into further whole numbers. You cannot divide 19 and 13 because 13 and 19 are already prime numbers.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Jeffrey's brother max is 5 years older than twice Jeffrey's age. Write an expression that represents the relationship of Max's a
Illusion [34]
Jeffrey = J
Max = M

M = 2j + 5
4 0
3 years ago
Other questions:
  • The equation of the parabola whose focus is at (0, 5) and directrix at y = -5 is:
    5·1 answer
  • Determine the domain of the function h(x)= 8x/x(x^2-81)
    11·1 answer
  • Eli's Bakery recently spent a total of $91 on new equipment, and their average hourly operating costs are $6. Their average hour
    6·1 answer
  • HELPPP THIS IS MY LAST QUESTION
    8·1 answer
  • After the neighborhood block party 2/4 of the brownies were left in the pan. Then Claire ate 1/6 of the leftovers. How much of t
    14·2 answers
  • 19/5 to mixed number
    5·2 answers
  • The football team has a total of jerseys 20 There are 14 ​medium-sized jerseys. What percent of the jerseys are​ medium-sized je
    15·1 answer
  • Franz must buy a minimum of $25 of art supplies to qualify for free shipping. He bought an easel for $15. He also bought 10 tube
    14·1 answer
  • What do we call people who were taken from Africa to America and sold into bondage?
    8·2 answers
  • A dog is 9 times as heavy as a cat, a hamster is 20 times as light as a cat, and a mouse is 6 times as heavy as the hamster. How
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!