3 years ago

Please help ASAP it is about triangles

Mathematics

1 answer:

TiliK225 [7]3 years ago

3 0

2x+3+51=4x+8 ( external angle =the sum of two opposite internal angles)

2x+54=4x+8

46=2x

x=23

4x+8=92+8=100 degrees

2x+3=46+3=49 degrees

You might be interested in

Tuition for one year at the state university Nick would like to attend is about $18,000. Nick plans to save money each month for

Lady bird [3.3K]

18,000-12,000=6,000

12 months x 4 = 48

6,000 / 48= $125

so the answer is D

5 0

2 years ago

Read 2 more answers

what is the equation in point-slope form of the line that passes through the point (4, "-7)" and has a slope of "-1/4"

Leona [35]

Answer:

y+7=-1/4(x-4) i think

Step-by-step explanation:

6 0

2 years ago

I ONLY NEED HELP ON NUMBER 2

REY [17]

So, the area of a circle is a=pi r^2
so do that and get a=pi(4)
and since the circle touches the edge of the rectangle, the rectangle is 4 cm tall, so 4*8 is 32 and pi(4) is about 12.56, so 32-12.56 is 19.44, and I believe that is the answer. (19.4)

4 0

2 years ago

Read 2 more answers

(-1/9) ÷ 6/7 = Help Me Pls :)

german

Answer:

I believe your answer is -7/54

3 0

2 years ago

Read 2 more answers

A college professor never finishes his lecture before the end of the hour and always finishes his lectures within 2 min after th

Citrus2011 [14]

Answer:

Value of k is $\displaystyle\frac{3}{8}$

Step-by-step explanation:

We are given the following information in the question:

$f(x) = kx^2, 0\leq x \leq 2\\~~~~~~~= 0, \text{ otherwise}$

where x is the time elapses between the end of the hour and the end of the lecture.

We have to find the values of k.

Since, f(x) is the pdf, then,

$\displaystyle\int^\infty_{-\infty} f(x) = 1\\\\\displaystyle\int^2_{0} f(x) = 1\\\\\displaystyle\int^2_{0} kx^2 = 1\\\\k\bigg[\frac{x^3}{3}\bigg]^2_0 = 1\\\\k\times \frac{8}{3} = 1\\\\k = \frac{3}{8}$

Hence, value of k is $\displaystyle\frac{3}{8}$

4 0

2 years ago