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Gemiola [76]
3 years ago
14

4. -2(x+3y)= 18 Plz help me!!!

Mathematics
2 answers:
OLEGan [10]3 years ago
7 0

Answer:

x+3y=-9

Step-by-step explanation:

-2(x+3y)=18

x+3y=18/-2

x+3y=-9

Digiron [165]3 years ago
6 0

Answer:

Step-by-step explanation:

y=-1/3x-3

Divide both sides by-2 :

x+3y=-9

3y=-x-9

y=-1/3x-3

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slamgirl [31]

Answer:

1035.33 feet

Step-by-step explanation:

OBH is a triangle and the sum of the angles of a triangle = 180

∠OBH = 90°

∠OHB = 180 -(49 + 90) = 41°

The law of sines that the ratio of each side of a triangle to the sin of the angle opposite it is the same

Thus

A/sinα  = B/sinβ = C/sinγ

where A, B and C are the three sides of the triangle and α, β, γ corresponding respectively to the angles opposite them.

Using the law of sines  

\frac{OB}{sin 41}  = \frac{BH}{sin49}

Therefore BH which is the height the helicopter is flying at is

BH = OB \frac{sin49}{sin41}

≈   1035.33 feet

8 0
2 years ago
Read 2 more answers
a rectangular fish tank 60 centimeters by 15 centimeters by 34 centimeters is 1/3 full of water. find the volume of water needed
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Answer:

20,400\ cm^{3}

Step-by-step explanation:

step 1

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step 2

we know that

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then

the volume of water required to completely fill the tank is equal to 2/3 of the tank capacity

so

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5 0
3 years ago
Three pounds of lawn seed covers 1800 square feet
QveST [7]

Answer:

1800 ÷ 3 = 600

~hope this helps~

4 0
3 years ago
Change 11.0018 into a mixed number in lowest terms
KiRa [710]
The lowest mixed number for this number would be 55009/5000. Hope that helped.
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Convert 54 inches to yards.
Andru [333]
1.5 yards is the correct answer
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4 years ago
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