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
dusya [7]
1 year ago
6

Calculate angles in a triangle HELP

Mathematics
1 answer:
ki77a [65]1 year ago
6 0

<u>Answer:</u>

angle a = \boxed{154}^{\circ}

<u>Step-by-step explanation:</u>

The angles in a triangle add up to 180°.

∴ ∠a + 13° + 13° = 180°

⇒ ∠a + 26° = 180°

⇒ ∠a = 180° - 26°

⇒ ∠a = 154°

You might be interested in
A dartboard consists of two concentric circles. The probability of hitting the inner circle is
stepan [7]
Given:
Diameter of outer circle = 20 inches.

We need to find the Area of the outer circle to get the radius of the inner circle.

Area = πr²

Outer circle Area = 3.14 * (10in)² = 314 in²

314 in² * 64% probability = 200.96 in² Area of the inner circle.

200.96 in² = 3.14 * r²
200.96 in² / 3.14 = r²
64 in² = r²
√64 in² = √r²
8 in = r

radius of inner circle is 8 inches.
3 0
3 years ago
Do you need to regroup 56+3 when adding to a two digit number
artcher [175]
You don't need to regroup when adding a two-digit number with a number.
3 0
3 years ago
What is (9+8)/(88+77)
barxatty [35]

Answer:

Exact form: 17/165

Decimal form: 0.103

Step-by-step explanation:

hope this helps :)

3 0
2 years ago
Read 2 more answers
Find the equation of the line passing through (2,3) and (1,5)
gavmur [86]

Answer:

y =-2x+7

Step-by-step explanation:

Hello : let  A(2,3)    B(1,5)

the slope is :   (YB - YA)/(XB -XA)

(5-3)/(1-2)  = 2/-1 =-2

an equation is : y=ax+b     a is a slope

y = -2x +b

 

the line through point  (2,3) :  3 = (-2)(2)+b    

b = 7

the equation is : y =-2x+7    

5 0
3 years ago
Quick algebra 1 question for 50 points!
saul85 [17]

Answer:

b.  -x + y = 0

Step-by-step explanation:

<u />

<u>Direct variation</u>:

Direct variation means "y varies directly as x”:

y \propto x \implies y=kx

where k is the (non-zero) constant of variation.

To determine which of the given equations represents a direct variation, isolate y for each and compare with the <u>direct variation equation</u>.

<u>Equation a</u>

y=\dfrac{4}{3}x-2

This is not a direct variation equation as there is an addition of -2.

<u>Equation b</u>

-x+y=0

\implies y=x

This is a direct variation equation where the constant of variation is 1.

<u>Equation c</u>

xy=8

\implies y=\dfrac{8}{x}

This is not a direct variation equation as y is <u>inversely proportional</u> to x.

<u>Equation d</u>

y=14

This equation does not include the variable x, and so is therefore not a direct variation equation.

3 0
2 years ago
Read 2 more answers
Other questions:
  • 1. solve the inequality 8x ≤ 48
    10·2 answers
  • A scientist studying bacteria begins with 20 cells. The bacteria population doubles every hour. Complete the table below to dete
    12·2 answers
  • 4 can go into 56 how many times
    7·2 answers
  • Convert 5 inches per second to feet per minute.
    14·1 answer
  • Simplify <img src="https://tex.z-dn.net/?f=%5Cfrac%7B9x%5E2%20-%203x%7D%7B6x%20-%2045x%5E2%7D" id="TexFormula1" title="\frac{9x^
    5·1 answer
  • A 40­acre field produces 600 bushels of wheat. At the same rate, how many bushels will a 75­acre field produce? A)   5 bushels B
    7·1 answer
  • Given: F(x) = 2x - 1; G(x) = 3x + 2; H(x) = x^2
    11·1 answer
  • -2x+11+6x<br><br> I need help
    8·1 answer
  • What is the answer to linear equation: 5 = 6 - 7c
    6·1 answer
  • Gary wanted to determine the average height of boys at the high school. His older brother is on the basketball team, so he asked
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!