All categories

2 years ago

HELP!! I desperately need help!! I would appreciate if you could show work please!!!

Mathematics

1 answer:

zzz [600]2 years ago

7 0

Answer:

a) 137.9°

b) 12.2° (please refer to explanation because I didn't know what to round to)

Step-by-step explanation:

1a) A supplementary angle will equal 180°, so you must subtract 42.1 from 180

180-42.1 = 137.9

1b) A complementary angle will equal 90°, so you need to use the expression given and add an x for the other part of 90°

8x-20+x = 90

9x-20=90

9x=110

x=12.2

You might be interested in

I need help...... someone plzzz help

bagirrra123 [75]

The answer is 58 and 39

8 0

2 years ago

Read 2 more answers

if 3 1/2 cups of flour are used with 1 1/4 cups of brown sugar, how much sugar is used when 10 1/2 cups of flour is used?

pickupchik [31]

Step by step equation

3 0

3 years ago

Pythagoras anyone???

exis [7]

8^2 + 5^2 = 64+25 = 89 = square root 89
I don't have a calculator on me lol.

that specific side opposite the right angle is always the longest angle
a^2+b^2=c^2

7 0

2 years ago

Read 2 more answers

I need help pllllllllllllllllllllzzzzz

aniked [119]

E: two and two fifths
F: two and 2 fifths
G:three and 4 fifths
H:3 and one half

5 0

2 years ago

Read 2 more answers

Please help!

mr Goodwill [35]

Answer:

1. $\sqrt{74}$ ft 2. $50\sqrt{2}$ yards 3. $5\sqrt{35}$ units.

Step-by-step explanation:

Pythagorean's Theorem $a^2 + b^2 = c^2$

A and b are both side lengths, c is the hypotenuse.

7^2 + 5^2 = 74

sqrt(74) is the answer for 1.

30^2 - 5^2 = 875

Simplify the radical. sqrt(875) --> 5sqrt(35). The answer for three.

There's a rule in geometry that says a diagonal of a square is the same length as taking a side length times the square root of two. There's your answer for two.

7 0

2 years ago