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elixir [45]
3 years ago
6

2- Calcule a área de um triângulo que tem base medindo 20 cm e altura igual a 6 cm

Mathematics
1 answer:
omeli [17]3 years ago
7 0

Answer:

uhhhhhhh

Step-by-step explanation:

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What 2 consecutive numbers add to 257
arlik [135]
128+129=257..............................
5 0
4 years ago
The sum of two numbers is 18 the sum of greater numbers and twice the smaller numbers is 25 the numbers
Gnoma [55]

Answer:

  the numbers are 7 and 11

Step-by-step explanation:

If you add the smaller to the sum of numbers, you have the sum of the greater and twice the smaller. That is ...

  18 + smaller = 25

  smaller = 25 -18 = 7

  larger = 18 -7 = 11

The two numbers are 7 and 11.

_____

If you like, you can write two equations. Let x and y represent the smaller and larger numbers, respectively.

  x + y = 18

  2x + y = 25

Subtract the first equation from the second:

  (2x +y) -(x +y) = (25) -(18)

  x = 7

  y = 18-x = 18-7 = 11

The numbers are 7 and 11.

7 0
4 years ago
Which ordered pairs in the form (x, y) are solutions to the equation 3x−4y=21?
zmey [24]
We must plugin values:
3(7)-4(0)=21, is CORRECT since 7•3 is 21 and -4•0 is 0
3(11)-4(3)=21 is CORRECT since 3•11=33 and -4•3=-12 so 33-12=21
3(-3)-4(3)=21 is INCORRECT since 3•-3 is -9 and -4•3 is -12, -9-12 is -21
3(-1)-4(-6)=21 is CORRECT since 3•-1 is -3 and -4•-6 is 24 and so 24-3=21
4 0
4 years ago
Read 2 more answers
What’s the expression form of it
tamaranim1 [39]

Answer:

it

Step-by-step explanation:

i + t = it

5 0
3 years ago
Is the sequence -3, 1, 5, 9,... An arithmetic sequence
kramer

Answer:

Yes, it's an arithmetic sequence.

Step-by-step explanation:

Each term in this sequence is 4 more than the previous term.  Therefore we have an arithmetic sequence.

6 0
3 years ago
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