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2 years ago

PLS HELP!! I WOULD APPRECIATE IT! I ALSO WILL GIVE BRAINLIEST!

Mathematics

2 answers:

My name is Ann [436]2 years ago

6 0

the instructor earns in dollars per class after the raise =$100

torisob [31]2 years ago

3 0

Answer: 82.5

Step-by-step explanation: Well let’s see if instructor makes 75 dollars for 3 classes the instructor makes 25 dollars each class. Now we must find what 10 percent of 75 is.
10 percent of 75 is 7.5 now he equation is simple.

75 + 7.5 = 82.5 So the instructor makes 82.5 dollars after there 10 percent raise.

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Please help. What is the intermediate step in the form (x+a)^2=b as a result of completing the square for the following equation

nevsk [136]

Step-by-step explanation:

It makes 2x^2-20-206=0

Find D

Then find X1 and X2

7 0

3 years ago

A bag contains 10 red marbles, 7 green marbles. and 8 striped marbles. A marble is picked, then put back into bag. Find P(green

SIZIF [17.4K]

G = number of green = 7

S = number of striped = 8

T = number total = 10+7+8 = 25

probability of picking green = P(G) = G/T = 7/25

probability of picking striped = P(S) = S/T = 8/25

P(green and striped) = P(G)*P(S) ... events are independent

P(green and striped) = (7/25)*(8/25)

P(green and striped) = (7*8)/(25*25)

P(green and striped) = 56/625

P(green and striped) = 0.0896

--------------------------------

In summary, the answer as a fraction is 56/625

In decimal form, the answer is 0.0896

The value 0.0896 can be converted to percent form to get 8.96%

8 0

3 years ago

Round off to the nearest hour 10 :54

Pachacha [2.7K]

Answer:

Step-by-step explanation:

the closest whole number on the hour is 11

5 0

3 years ago

jen is 26 years younger than her mom. Together their ages total 50 how old is Jen? How old is her mom?

lesantik [10]

Jen is twelve years old and her mom is 38. 38 plus 12 is 50

5 0

3 years ago

The sides of a regular 9-sided polygon have been

Maksim231197 [3]

Answer:

x = 100°

Step-by-step explanation:

As the given shape is a regular polygon, the triangles created by extending the sides are <u>isosceles triangles</u>.

To calculate the base angles of the isosceles triangle, find the interior angle of the regular polygon:

$\textsf{Interior angle of a regular polygon} = \dfrac{180^{\circ}(n-2)}{n}$

$\textsf{(where }n \textsf{ is the number of sides)}$

Therefore:

$\textsf{Interior angle of a regular nonagon} = \dfrac{180^{\circ}(9-2)}{9}=140^{\circ}$

As angles on a straight line sum to 180°, the <u>base angle</u> of the isosceles triangle is:

= 180° - interior angle

= 180° - 140°

= 40°

Interior angles of a triangle sum to 180°.

⇒ 2 base angles + x = 180°

⇒ 2 × 40° + x = 180°

⇒ 80° + x = 180°

⇒ x = 180° - 80°

⇒ x = 100°

4 0

2 years ago

** PLS HELP!! I WOULD APPRECIATE IT! I ALSO WILL GIVE BRAINLIEST!**

PLS HELP!! I WOULD APPRECIATE IT! I ALSO WILL GIVE BRAINLIEST!