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Elis [28]
3 years ago
11

PLEASE HELP!! GIVING BRAINLIEST AND PLEASE EXPLAIN!!!

Mathematics
2 answers:
algol133 years ago
8 0

the answer is 64cm 2

Step-by-step explanation:

It is because its a square so base x height so  8x8=64

64cm2

Please tell me if that is correct thank you

Ahat [919]3 years ago
6 0

Answer:

64 cm²

Step-by-step explanation:

Area of a square: s²

s = 8 cm

(8)² = 64 cm²

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Please help, super hard question for me!
dem82 [27]

Answer:

Step-by-step explanation:

When using the substitution method we use the fact that if two expressions y and x are of equal value x=y, then x may replace y or vice versa in another expression without changing the value of the expression.

Solve the systems of equations using the substitution method

{y=2x+4

{y=3x+2

We substitute the y in the top equation with the expression for the second equation:

2x+4            =      3x+2

4−2              =        3x−2

2===             =         x

To determine the y-value, we may proceed by inserting our x-value in any of the equations. We select the first equation:

y= 2x + 4

We plug in x=2 and get

y=  2⋅2+4 = 8

The elimination method requires us to add or subtract the equations in order to eliminate either x or y, often one may not proceed with the addition directly without first multiplying either the first or second equation by some value.

Example:

2x−2y = 8

x+y = 1

We now wish to add the two equations but it will not result in either x or y being eliminated. Therefore we must multiply the second equation by 2 on both sides and get:

2x−2y = 8

2x+2y = 2

Now we attempt to add our system of equations. We commence with the x-terms on the left, and the y-terms thereafter and finally with the numbers on the right side:

(2x+2x)  + (−2y+2y) =  8+2

The y-terms have now been eliminated and we now have an equation with only one variable:

4x = 10

x= 10/4 =2.5

Thereafter, in order to determine the y-value we insert x=2.5 in one of the equations. We select the first:

2⋅2.5−2y     =  8

5−8             = 2y

−3               =2y

−3/2            =y

y                 =-1.5

6 0
2 years ago
Helppppppppppppppppp
Elan Coil [88]

Answer:

B

Step-by-step explanation:

You can see B has the points kind of clustered around it.

3 0
2 years ago
Gavin has nickels, dimes and quarters in a ratio of 8:1:2 if Gavin's coins are quarters, how many nickels and dimes dose gavin h
Rina8888 [55]

Answer:

34

Step-by-step explanation:

6 0
2 years ago
Tom's real estate office reports that the office's income last month was $315,600, while expenses were $19,567.20. What percent
Vinil7 [7]

Answer:

678

Step-by-step explanation:

Okay I'll try to help you. :)

8 0
3 years ago
Kyle bought a sandwich for $4.95, a bag of chips for $2.30, and a drink for $1.10. The tax was $0.65. He gave the cashier $10.00
sweet-ann [11.9K]
Hello!

Add up the costs of everything Kyle purchased and the tax, and then subtract that from $10.

4.95 + 2.30 + 1.10 + 0.65 = 9

10 - 9 = 1

Kyle should have received $1 change.
4 0
3 years ago
Read 2 more answers
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