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3 years ago

Give that each figure shown below is a trapezoid. Find the missing values.

Mathematics

1 answer:

Lyrx [107]3 years ago

6 0

Answer:

EF=22

C=70°

B=110°

Step-by-step explanation:

Trapezoids have to have a total of 360° and there are complementary angles.

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Put the following rates of change in order from least to greatest A. - 42 B. - 2/3 C. 3/4 D. 25

I am Lyosha [343]

B,C,D,A

Step-by-step explanation:

This is the right answer because -42 and 25 are the largest and -2/3 and 3/4 are the smallest. So the answer is B,C,D,A

6 0

3 years ago

In 2073 BS father's age was 7 times his daughter devyani's age. In 2081 BS father's age will be 3 times only his daughter's age.

Anna007 [38]

Answer:

2069.

Step-by-step explanation:

Let Devyani's age in 2073= x years and y be her fathers age Then:

y = 7x

- and in 8 years time ( 2081) we have:

y + 8 = 3(x + 8)

y = 3x + 24 - 8

y = 3x + 16. Eliminating y from the 2 equations:

7x = 3x + 16

4x = 16

x = 4.

So in 2073 she was 4 years old

Therefore she was born in 2069.

4 0

3 years ago

If there are four teams in a league, how many games will have to be played so that each team plays every other team once?

Sedaia [141]

Answer:

6 matches

Step-by-step explanation:

Let’s call the teams A B C D

A will play B C D = 3 matches

B will play only C and D as it already played A, making 2 matches

C will play D, making 1 match

D has already played all

Total number of matches is thus 3 + 2 + 1 = 6 matches

3 0

4 years ago

In circle , has a length 6.47 centimeters. What is in radians? Round your answer to two decimal places. the radius is 2.9.

Scrat [10]

Answer:

1.53 for plato

Step-by-step explanation:

8 0

2 years ago

Solve the system by elimination. 4x=−3y−10 9x+2y=6

nadya68 [22]

Answer:

Step-by-step explanation:

$\left\{\begin{array}{ccc}4x=-3y-10&\text{add}\ 3y\ \text{to both sides}\\9x+2y=6\end{array}\right\\\\\left\{\begin{array}{ccc}4x+3y=-10&\text{multiply both sides by 2}\\9x+2y=6&\text{multiply both sides by (-3)}\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}8x+6y=-20\\-27x-6y=-18\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad-19x=-38\qquad\text{divide both sides by (-19)}\\.\qquad\dfrac{-19x}{-19}=\dfrac{-38}{-19}\\.\qquad \boxed{x=2}$

$\text{Put the value of}\ x\ \text{to the second equation:}\\\\9(2)+2y=6\\18+2y=6\qquad\text{subtract 18 from both sides}\\2y=-12\qquad\text{divide both sides by 2}\\\dfrac{2y}{2}=\dfrac{-12}{2}\\\boxed{y=-6}$

4 0

4 years ago