For f(x)= 2x-5 and g(x)= 3-x , find (f (times) g)(-2)

Answers

Answer 1

Answer: $f(x)= 2x-5 \ng(x)= 3-x \n\nf(-2)= 2 \cdot (-2)-5 =-4-5=-9\n\ng(-2)=3-x=3-(-2)=3+2=5\n\n (f \cdot g)(-2)=f(-2)\cdot g(-2)= (-9)\cdot 5=-45$

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at a school choir concert 256 students are standing in rows. if the number of students in each row is equal to the total number of rows find the number of students in each row

Answers

(16 rows) x (16 students/row) = 256 students .

. Solve the equation.
6r = –48
(1 point)
–8
8
–54
–42

Answers

r = -8 because 6 x -8 = -48

2) If the original price of an antique chair was $41, what is the best estimate of an offer to purchase the chair at 124% of the original price?a.) The chair will be purchased at $20.
b.) The chair will be purchased at $40.
c.) The chair will be purchased at $50.
d.) The chair will be purchased at $90.

3) Which fraction could be used to determine an estimate of 76% of the people who attended the play?

a.) 1/2 of the people
b.) 3/4 of the people
c.) 2/3 of the people
d.) 1/10 of the people

4) Which mixed number could be used to determine an estimate of a 249% increase in value of a ring?

a.) 1/2 the value of the ring
b.) 3/4 the value of the ring
c.) 2 1/2 times the value of the ring
d.) 3 1/3 times the value of the ring

Answers

2) d.) The chair will be purchased at $90.
3) b.) 3/4 of the people
4) c.) 2 1/2 times the value of the ring

2) 50.84 ≈ 50 c

3) b.) 3/4 of the people

4) c.) 2 1/2 times the value of the ring

05.03)Calculate the area of the regular pentagon below: A regular pentagon with side length of 11.8 inches and dotted line from center to middle of side of 8.1 inches. 164.025 square inches 238.95 square inches 351.78 square inches 477.9 square inches

Answers

Answer:

The correct answer is 238.95 square inches

Step-by-step explanation:

Regular Pentagon : A quadrilateral having five sides each of equal length is called regular pentagon.

Side length of pentagon, a = 11.8 inches

$\text{Area of regular pentagon = }(1)/(4)\cdot \sqrt{5\cdot (5+2\cdot √(5))}* a^2\n\n\implies\text{Area = }(1)/(4)\cdot \sqrt{5\cdot (5+2\cdot √(5))}* (11.8)^2\n\n\bf\implies\textbf{Area = }239\textbf{ square inches}$

Hence, The correct answer is 238.95 square inches as it is approximately equal to 239 square inches.

Answer:

The answer is 477.9

Step-by-step explanation:

What you're going to do is base x height. Then your going to multiply you're answer to that by how many sides there are. so for this it going to be: 8.1 x 11.8 = 95.58. 95.58 x 5 = 477.9

Hope this helps!

Have an amazing day!

~Lola

Prove the Pythagorean Theorem using similar triangles. The Pythagorean Theorem states that in a right triangle, the sum of the squares of the lengths of the legs of the triangle equals the squared length of the hypotenuse. Be sure to create and name the appropriate geometric figures.

Answers

For the answer to the question above asking to prove the Pythagorean Theorem using similar triangles. The Pythagorean Theorem states that in a right triangle,
A right triangle consists of two sides called the legs and one side called the hypotenuse (c²) . The hypotenuse (c²) is the longest side and is opposite the right angle.

⇒ α² + β² = c²

"In any right triangle ( 90° angle) , the sum of the squared lengths of the two legs is equal to the squared length of the hypotenuse."

For example: Find the length of the hypotenuse of a right triangle if the lengths of the other two sides are 3 inches and 4 inches.
c2 = a2+ b2
c2 = 32+ 42
c2 = 9+16
c2 = 15
c = sqrt25
c=5

Pls answer this correct ;( don't answer it nonsenses. :) Thanks!A. in 20 tries, Riza Beat Jennifer 5 times. What is the probability that Jennifer won?

B. In 50 tries, Mark won over Martin 26 times. What is the probability that Mark Won?

Answers

Answer:

jennifer won 15 time and mark won 24

if the answer is wrong i am really sorry

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