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
garik1379 [7]
3 years ago
13

Triangle Review 2.0 (Math i need help please)

Mathematics
1 answer:
lara31 [8.8K]3 years ago
6 0

Answer:

A= 30

Step-by-step explanation:

This requires several steps.

First, you need to find the 2 other missing angles.

One can be found easily by substracting 130 from 180

so 180-130 = 50

The other angle is the same as 8x+4

Now set up your equation

180=3x-6 + 8x+4 +50

180 = 3x + 8x -6 + 4 +50

180+6-4-50 = 11x

132 = 11x

132/11 = x

12 = x

Now plug in 12 for x in your angle A

A=3x-6

A=3 * 12 - 6

A=36 - 6

A= 30

You might be interested in
Which inequality represents that −14 more than twice a number is no less than 18?
yuradex [85]
-14>2x>18

Hope this helps!
5 0
3 years ago
Determine if the statements below are true or false. Justify your answer. (a) If a fair coin is tossed many times and the last e
denis23 [38]

Answer:

(a) is False (b) is true (c) is true

Step-by-step explanation:

4 0
3 years ago
Given a cone 10 feet tall with a diameter of 10 feet, determine the radius of the smaller cone created when a horizontal plane p
11111nata11111 [884]

Answer:

r=3 ft

Step-by-step explanation:

it is similarity of two triangles

one

perpendicular side=10 ft

base=10/2=5 ft

second

perpendicular side=10-4=6 ft

Base r=?

\frac{r}{5}=\frac{6}{10}\\r= \frac{6}{10} \times 5=3~ft

8 0
3 years ago
Which equation represents the line that passes through the points (–3, 7) and (9, –1)?
galben [10]

Answer:

Step-by-step explanation:

first, we find the slope

slope = (y2 - y1) / (x2 - x1)

(-3,7)....x1 = -3 and y1 = 7

(9,-1)...x2 = 9 and y2 = -1

now we sub

slope(m) = (-1 - 7) / (9 - (-3) = -8 / (9 + 3) = -8 / 12 reduces to - 2/3

y = mx + b

slope(m) = -2/3

use either of ur points...I will use (-3,7)...x = -3 and y = 7

now we sub and find b, the y intercept

7 = -2/3(-3) + b

7 = 2 + b

7 - 2 = b

5 = b

so ur equation is : y = -2/3x + 5 <===

7 0
3 years ago
Read 2 more answers
The probability of being a universal donor is 6% (O-negative-blood type). Suppose that 6 people come to a blood drive.
Rufina [12.5K]

Answer:

babala

Step-by-step explanation:

The probability of being a universal donor is 6% (O-negative-blood type). Suppose that 6 people come to a blood drive.

a) What are the mean and standard deviation of the number of universal donors among the 6 people?

b) What is the probability that there are exactly three universal donors?

7 0
3 years ago
Other questions:
  • What is the result when the number 60 is increased by 60%
    10·1 answer
  • The length of a rectangle is 9 centimeters less than four times its width. Its area is 28 square centimeters. What is the dimens
    10·1 answer
  • What is the slope of the line?
    13·2 answers
  • Can you match the teachers comments to the definitions?
    12·2 answers
  • What is the y-intercept of the quadratic function: f(x)=(4x-3) (2x-1)
    15·1 answer
  • Which expression is equivalent to 7/12 - 2/12
    7·1 answer
  • What is the value of x in the equation 5 x - y 5x - y = 30, when y = 15?​
    10·1 answer
  • I am struggling a bit
    8·1 answer
  • PLEASE HELP QUICK GIVING BRAINLIEST NANSHHXHS HELLO
    15·2 answers
  • A figure has vertices at A(—3, 2), B(—l, —l), and C(—4, —2). After a transformation,the image of the figure has vertices at A'(3
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!