3 years ago

Help! Please I’m not sure what to do I forgot

Mathematics

2 answers:

JulijaS [17]3 years ago

7 0

Answer:

∠ B = 54°

Step-by-step explanation:

Supplementary angles sum to 180°, so

7x + 7 + 4x - 14 = 180

11x - 7 = 180 ( add 7 to both sides )

11x = 187 ( divide both sides by 11 )

x = 17

Then

∠ B = 4x - 14 = 4(17) - 14 = 68 - 14 = 54°

suter [353]3 years ago

3 0

Can someone help me also

You might be interested in

Description for this pair of angles

Setler [38]

Answer:

the answer is 29024280932

Step-by-step explanation:

easy

4 0

3 years ago

a line is parallel to y=-2x+1 and intersects the point (4,1). what is the equation of this parallel line

Shkiper50 [21]

Answer:

y=-2x+9

Step-by-step explanation:

8 0

3 years ago

Denise has a stool with a circle seat on top. The diameter of the seat is 14inches, and she wants to know the area of the top in

saul85 [17]

Answer:21?

Step-by-step explanation:

7 0

3 years ago

A bag contains 25 balls 20 of which are blue what percentage of balls are not blue

Artist 52 [7]

Answer:

20%

Step-by-step explanation:

20/25 = blue

This means 5/25 of the balls in the bag are NOT blue

(25-20 = 5)

We need to convert 5/25 to a percentage

$\dfrac{5}{25} = \dfrac{5\times4}{25\times4}=\dfrac{20}{100}$

% = per cent

"per" means "out of"

"cent" means "one hundred"

20/100 = 20%

7 0

1 year ago

What does rotation summery means in your own words?

sashaice [31]

Rotational symmetry is when an object looks the same when rotated around its center by an angle not equal to 0° (0) or any multiple of 360° (2π).

4 0

3 years ago