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slava [35]
3 years ago
15

Can u find the area of these please

Mathematics
1 answer:
Schach [20]3 years ago
4 0
Area of a rectangle can be calculated by multiplying the length by the height.
So:

l x w
3 x 13
39 cm squared

Area of a triangle can be calculated by multiply the length by the height and dividing by two. So:

1/2 x l x w
1/2 x 10 x 8
40 m squared 
 
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(a) has no solutions.<br><br>(b) has infinitely many solutions.<br><br>(c) has exactly one solution.
grandymaker [24]

Answer and Step-by-step explanation:

Given

ax + by = c

qx + ry = s

(a) the equation has no solutions if a/q = b/r ≠ c/s, when this happens, we say the system of equations has no solution. For example

x + y = 3

x + y = 5

Subtracting first equation from the second we have:

0 = 2 which is impossible.

(b) the equations have infinite solutions if a/q = b/r = c/s, for example

x + y = 2

x + y = 2

Subtracting the first equation from the second we have

0 = 0, since this is always true, then it has infinite solutions.

(c) the equations have unique solutions if a/q ≠ b/r, for example

x + y = 2

x – y = 1

Adding the first and second equation we have

2x = 3, we can get x from here and definitely y, so we have just one solution.

6 0
3 years ago
What is the value of s?<br> units
lorasvet [3.4K]

Answer:

17 units

Step-by-step explanation:

s = √15² + 8² = √289 = 17

6 0
3 years ago
Read 2 more answers
PPPLLLZZZZZZ HELP! TnT ASAP! ( MATH ) FIRST ONE GETS BRAINLIST, A THANK YOU AND POINTS!!
spin [16.1K]

Answer:

1).

Alyssa:

About 1 book

Brandon:

About 1 book

Alyssa:

7/12 of a book

Brandon:

4/5 of a book

Step-by-step explanation:

Alyssa:

1/4=1/2

1/3=1/2

1/2+1/2=1

1/4= 3/12

1/3=4/12

3/12+4/12=7/12

Brandon:

2/5=1/2

4/10=1/2

1/2+1/2=1

2/5=4/10

4/10+4/10=8/10=4/5

Hope this helps! Please mark as brainliest!

8 0
2 years ago
How to estimate 184÷9 in multiplication
FrozenT [24]
Do you mean checking your work? In that case it would be 9*20.
5 0
3 years ago
Ryan had 220 baseball cards
emmasim [6.3K]

Answer:

220 baseball cards

Step-by-step explanation:

You didn't tell us anything s o i guess 220 baseball cards

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