3 years ago

Please help! Urgent! What is the measure of angle B? -78° -92° -102° -282°

Mathematics

2 answers:

Step2247 [10]3 years ago

7 0

C i believe because 180 is the overall degree and 50+28=78 and 180-78=102

loris [4]3 years ago

5 0

102 because 50+28=78 and 180-78=102 I’m pretty sure this is right. Correct me if not.

You might be interested in

Hey i need help with system of equations.<br> i uploaded a doxs file you can onpen it in google docs

Art [367]

Answer:

Step-by-step explanation:

PART A:

The first equation is $x + y = 7\\y = 7 - x .............(a)$

The second equation is $3x - 2y = 1\\2y = 3x - 1$

Putting the value of y from (a) in the above equation, we get $2y = 3x - 1\\2(7 - x) = 3x - 1\\14 - 2x = 3x - 1\\x = 15$

From (a) we get y = 7 - x = 7 - 15 = -8

PART B:

Here the system of equations are $-x + 4y = 17........(a) and 3x - 5y = -30.........(b)$

From (a) we get, $x = 4y - 17$

Putting the above value of x in (b) we get, $3x - 5y = -30\\3(4y - 17) - 5y = -30\\12y - 51 - 5y = -30\\7y = 21\\y = 3$

Hence, $x = 4y - 17 = 12 - 17 = -5$

3 0

3 years ago

Can someone please help me with the last 3

mash [69]

Answer:

its pretty complicated

Step-by-step explanation:

4 0

3 years ago

Select all that apply If 2x^2-6x=0, then

babymother [125]

Answer:

then 2x = 0 and x - 3 = 0

Step-by-step explanation:

4 0

3 years ago

A chemist is using 356 milliliters of a solution of acid and water. If 14.1% of the solution is acid, how many milliliters of ac

likoan [24]

50.2 milliliters of acid

4 0

3 years ago

There are 29 second graders at recess. Then, 27 third graders and 43 fourth graders join them at recess.

aev [14]

Answer:

99 students

Step-by-step explanation:

To get this answer, you need to add all of the numbers up because the 3rd graders and 4th graders are joining the 2nd graders. 27+43=70. 70+29=99.

8 0

3 years ago