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e-lub [12.9K]
3 years ago
8

The ordered pair (−3,−6) is a solution for the first equation, and it is a solution for the second equation. Therefore, (−3,−6)​

is a solution to the system of equations. ​−4x+y=65x−y=21​ true or false? HELP PLEASE I AM IN THE MIDDLE OF A QUIZ HELP!!!! ASAP
Mathematics
2 answers:
Alisiya [41]3 years ago
7 0
False. If x=-3 and y=-6 and you substitute them into the equation they do not add up

Olenka [21]3 years ago
3 0

Answer: False

I took the test. Hope you do well!!

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Helppppp meeee pleaseeee in horrible at math
rosijanka [135]
Circumference = 2×3.14×r
3.14 is pie and r is the radius.
To find the radius you divide the diameter by 2.
19 ÷ 2 = 9.5
2×3.14×9.5 = 59.66
Multiply 59.66 by 6 because ther are 6 pennies.

59.66 × 6 = 357.96 mm.
4 0
3 years ago
For the figures below, assume they are made of semicircles, quarter circles and squares. For each shape, find the area and perim
ASHA 777 [7]

The area of the given figure is 576 cm sq.

The perimeter of the given figure is 96 cm.

Step-by-step explanation:

The shape consists of one semicircle and one square which is cut by a semicircle.

<u>To find Area:</u>

Find the area of semicircle= (πr^2)/2

where r is the radius= diameter/2= 24/2= 12 cm

Area of semicircle= π(12)(12)/2= 144π/2= 72π cm sq.

Find the area of square= a^2

where a is the side of square, a=24 cm.

Area of the square= 24*24= 576 cm sq.

To find the total area of the given figure,

Area of the figure= Area of semicircle+(area of square- area of semicircle)

                             = 72π+576-72π =576 cm sq.

<u>To find perimeter:</u>

Perimeter of semicircle= (2πr)/2

                                       = (2*12*π)/2= 12π cm

Perimeter of square= 4a =4*24 =96 cm

Perimeter of the given figure=  perimeter of semicircle+(perimeter of                        square- perimeter of semicircle)

                                                 = 12π+96+12π =96 cm.                            

4 0
3 years ago
Help its super easy!
rosijanka [135]

Answer:

both on the left

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
10. If x = -2, y=-6 and z= 4, find the value of 4xy<br>Z​
Grace [21]

Answer:

192

Step-by-step explanation:

Given

4xyz ← substitute given values into expression

= 4 × - 2 × - 6 × 4 = - 8 × - 24 = 192

5 0
3 years ago
Angles E and Fare in ration 2:5. If the sum of E+F=70, What are the
LenKa [72]

Answer:

E is equal to 20 and F is equal to 50. 20(E)+50(F)=70

3 0
3 years ago
Read 2 more answers
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