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ollegr [7]
3 years ago
7

Who can help me solve this math problem? -4y+7y^2+7x-x+3y+x-4y

Mathematics
2 answers:
Sergio [31]3 years ago
5 0

Hope it will help u...........

krok68 [10]3 years ago
3 0

Sum up the like terms :

  • -4y + 7y² + 7x - x + 3y + x - 4y

  • 7y² + (-4y + 3y - 4y) + (7x - x + x)

  • 7y² - 5y + 7x
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Help please soon !!!!!!
stepan [7]
75.25x + 3604 = 300.50x
300.50x - 75.25x = 3604
225.25x = 3604
x = 16
Both companies charged the same at 16 tons
first answer 16 tons
--------------------
300.50x = 300.50(16) = $4,808
both companies charged the same are $4,808
second answer is $4,808
5 0
4 years ago
I need to find the area of this whole shape. plz someone help me. ​
Komok [63]

Answer:

the answer would be 105!!

Step-by-step explanation:

5×3=15

15×7=105 aka our answer

8 0
3 years ago
Read 2 more answers
Given the triangle below, what is the length of the third side, rounded to the nearest whole number?
Leno4ka [110]

Answer:

Step-by-step explanation:

You need the Law of Cosines for this, namely:

x^2=21^2+14^2-2(21)(14)cos58 where x is the missing side.

x^2=441+196-311.5925 and

x^2=325.4075 so

x = 18.0 or just 18

7 0
3 years ago
For an acute angle θ, the equation sin (θ) = cos (7°)is true. What is the value of θ?
8_murik_8 [283]

Answer:

  θ = 83°

Step-by-step explanation:

For acute angles, the sine of an angle is the cosine of its complement, and vice versa.

__

  sin(θ) = cos(90° -θ) . . . . relation between sine and cosine

  sin(θ) = cos(7°) . . . . . . . . given

  90° -θ = 7° . . . . . . . . . matching arguments of cos( )

  θ = 83° . . . . . . . . . add θ -7° to both sides

5 0
2 years ago
black pencils cost 75 naira each and colour pencils cost 105 naira each if 24 mixed pencils cost 2010 naira how many of them wer
KonstantinChe [14]

Answer:

number of black pencils is 17

7 0
3 years ago
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