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topjm [15]
3 years ago
13

All parallellograms are squares true or false​

Mathematics
1 answer:
Zepler [3.9K]3 years ago
5 0

Answer:

false

Step-by-step explanation:

all parallelograms are not square

their opposite sides only equal

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Find the area of the shaded regions: the green is the shaded area
algol13

Answer:

the green area stands for the safe operation space

Step-by-step explanation:

u say b×h meaning say 80degrees ×9cm which is 720..

7 0
2 years ago
Find all solutions of the given system of equations (If the system is infinite many solution, express your answer in terms of x)
lisov135 [29]

Answer:

(a) The system of the equations \left \{ {2x-3y\:=3} \atop {4x-6y\:=3}} \right. has no solution.

(b) The system of the equations \left \{ {4x-6y\:=10} \atop {16x-24y\:=40}} \right. has many solutions y=\frac{2x}{3}-\frac{5}{3}

Step-by-step explanation:

(a) To find the solutions of the following system of equations \left \{ {2x-3y\:=3} \atop {4x-6y\:=3}} \right. you must:

Multiply 2x-3y=3 by 2:

\begin{bmatrix}4x-6y=6\\ 4x-6y=3\end{bmatrix}

Subtract the equations

4x-6y=3\\-\\4x-6y=6\\------\\0=-3

0 = -3 is false, therefore the system of the equations has no solution.

(b) To find the solutions of the system \left \{ {4x-6y\:=10} \atop {16x-24y\:=40}} \right. you must:

Isolate x for 4x-6y=10

x=\frac{5+3y}{2}

Substitute x=\frac{5+3y}{2} into the second equation

16\cdot \frac{5+3y}{2}-24y=40\\8\left(3y+5\right)-24y=40\\24y+40-24y=40\\40=40

The system has many solutions.

Isolate y for 4x-6y=10

y=\frac{2x}{3}-\frac{5}{3}

3 0
3 years ago
Find y<br>Solve the simultaneous <br>equations<br><br><br>3x + 2y = 27 3x - Y = 9<br>​
lutik1710 [3]

Answer:

y = 6

Step-by-step explanation:

To find y, we need to eliminate x in this system of equations:

3\cdot x + 2\cdot y = 27 (1)

3\cdot x - y = 9 (2)

From (1) and (2):

x = \frac{27-2\cdot y}{3}

x = \frac{9+y}{3}

Then, we equalize both expressions and solve for y:

\frac{27-2\cdot y}{3} = \frac{9+y}{3}

27-2\cdot y = 9 + y

3\cdot y = 18

y = 6

6 0
3 years ago
You use 66 gallons of water on 2020 plants in your garden. At that rate, how much water will it take to water 3030 plants?
kykrilka [37]
99 gallons bc for each 1,010 plants their is 33 gallons so multiplying by 3 you will get 99 gallons for 3,030 plants 
6 0
2 years ago
Read 2 more answers
20 is what percent of 50? A. 40% B. 10% C. 250% D. 30%
zvonat [6]
<span>A is the correct answer. To find 10% of 50, divide it by 10. This gives you 5. If 5 is 10%, then 20 is 40%, because 20 is 4 x 5 and 40 is 4 x 10. </span>
5 0
3 years ago
Read 2 more answers
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