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
spin [16.1K]
3 years ago
10

Help me with #5 pleaseeeeeeeeeee

Mathematics
1 answer:
earnstyle [38]3 years ago
6 0

Answer:

\angle 1 = 45 degrees

Step-by-step explanation:

Sum of 3 angles in a triangle is 180..

The angles given are:

60

7x + 12

1

So we sum to 180 and write:

60+7x+12+\angle 1=180\\72+7x+\angle 1=180\\7x+\angle 1=108

Also, straight angle is 180 degrees, thus Angle 1 and (14x + 9) angle is sum to 180, thus we can write:

14x+9+\angle 1=180\\14x + \angle 1=171

Or we can write this as:

14x + \angle 1=171\\\angle 1 = 171 - 14x

We substitute this expression for Angle 1 into 1st equation we got and solve for x first,

7x+\angle 1 = 108\\7x+( 171 - 14x)=108\\-7x=-63\\x=9

Since x = 9, the angle "14x + 9" would be:

14(9) + 9 = 135

Hence Angle 1 would be:

\angle 1 + 14x + 9 = 180\\\angle 1 + 135 = 180\\\angle 1 = 45

You might be interested in
I need help plz help
arsen [322]

Answer:

126

Step-by-step explanation:

To solve this, we need to use PEMDAS: Parentheses, exponents, multiplication, division, addition, subtraction

((4 x 8) + 10) x 3

Parentheses - multiplication

(32 + 10) x 3

Parentheses - addition

42 x 3

multiplication

126

3 0
3 years ago
Help please
bearhunter [10]

Answer:

1. 7.66 x 10^4

2. 2.415×10²

Step-by-step explanation:

2. 8×105-5.7×105=241.5

4 0
3 years ago
How many whole servings of 3/2 cups are in 67/3 cups of fruit punch
Lerok [7]
14 8/9 cups of fruit punch
4 0
3 years ago
Which numbers should replace the question marks?
slava [35]

The first missing number in the sequence is 35, and the last missing number is 77.

<h3>Next number of the given sequence</h3>

The two missing numbers in the given sequence is calculated as follows;

= ?    49     63    ?

The given sequence is factor 7 which increases by 2

= 7 x 5      7 x 7       7 x 9     7 x 11

= 35         49          63          77

Thus, the first missing number in the sequence is 35, and the last missing number is 77.

Learn more about sequence here: brainly.com/question/6561461

#SPJ1

7 0
2 years ago
Evaluate the expression for x = 3 y= 1/3 and z= 5. 12 x - 3y / 4 x - Z​
4vir4ik [10]

Answer:

5

Step-by-step explanation:

12 x - 3y / 4 x - Z

=12×3-3×1/3÷4×3-5

=36-1/12-5

=35/7

=5

So the final answer is 5.

5 0
3 years ago
Other questions:
  • Slope interpect form (please don't answer if you don't know there asking you to define the slope and the y coord for each ones
    6·1 answer
  • Eliminate the parameter. x = t - 3, y = t2 + 5
    15·1 answer
  • 12-w=1 solve for w help me please
    15·1 answer
  • Angad, Caroline and Sarah share some sweets in the ratio 4:2:1. Angad gets 20 sweets. How many sweets are there altogether?
    6·1 answer
  • PLZ help I will mark as brainliest
    7·1 answer
  • Aluminium has a density of 2900 kg/mº. A construction company
    11·1 answer
  • Is the graph below linear function or non- linear plxxx helppp<br><br>​
    7·1 answer
  • I will make brianliest
    11·1 answer
  • Can someone please help me I will give you brainleist but please don’t put no links
    6·1 answer
  • (9+5)(3+2)⁰<br>Evaluate<br><br><br><br>A:0<br>B:1<br>C:14<br>D:15​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!