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lys-0071 [83]
3 years ago
15

X and Y

Mathematics
1 answer:
Sholpan [36]3 years ago
4 0

Step-by-step explanation:

just substitute X and Y by their numerical values.

a) -5(4)+5(-1)=-25

-20-5= -25

-25= -25. true

b) 3(4)+2(-1) = 10

12 -2 =10

10=10. true

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Solve by square rooting : 3(X+2)^2:8​
dolphi86 [110]

The value of x is √8/3 - 2

Step by step explanation:

The given equation is

3(x+2)^2=8

To find x,

(x+2)²= 8/3

By taking square root on both sides

x+2= √8/3

x=√8/3 -2

x= -0.37

Thus the square root for the given value is -0.37

3 0
3 years ago
What is the equivalent ratio of 26:7​
anastassius [24]

Answer:

52 : 14

Step-by-step explanation:

multiply the numbers by 2

3 0
2 years ago
there are 27 red or blue marbles in a bag. The number of red marbles is 5 less than 3 times the number of blue marbles. How many
Natasha2012 [34]
8 blue marbles and 19 red
7 0
3 years ago
50 POINTS Really need help, answer a. b. and c.
AleksandrR [38]

Answer:

a) 1 in : 6 in

b)  P=32 inches

    A =60 inches ^2

c) P=  16 ft

    A = 15 ft ^2

Step-by-step explanation:

The drawing is 6 inches tall, while the real flag is 3 ft tall

Change ft to inches

3 ft * 12 inches/1ft = 36 inches

drawing : real life

  6                 36

 Divide each by 6

  1                    6

The scale is 1 to 6

So for every 1 inch on the drawing, there is 6 inches in real life


b)  P= 2(l+w) = 2(10+6) = 2(16) = 32 inches

    A = l*w = 10*6 =60 inches ^2

C)

The drawing is 10 inches by 6 inches

Multiply by the scale factor of 6

Real life is     60 inches by 36 inches

Divide by 12 to get back to ft

                            5ft    by 3 ft

P= 2(l+w) = 2(5+3) = 2(8) = 16 ft

    A = l*w = 5*3 =15 ft ^2

4 0
2 years ago
Hardees offers the above deal for the coming month of Holy Ramzan from 6:00 pm to 9:00 pm. The deal was previously for Rs. 1675.
aleksley [76]

Answer:

20 coins

Step-by-step explanation:

20 coins

7 0
2 years ago
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