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MariettaO [177]
3 years ago
12

+ Extra points, and I will give BRAINLIEST to the first person to get this question right.

Mathematics
1 answer:
Scrat [10]3 years ago
3 0
X = -15

14(-15) + 6
-------------- = - 68
3

-8 + 4(-15) = - 68

So, -3(-15)² - 7 = -682

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Someone pls help me i really need this
lukranit [14]
Y=1\2x.
hopes this helps you
5 0
3 years ago
Adam has dimes and quarters in his pocket. there are 28 coins in all, and they are worth $4.60 altogether.how many quarters does
pochemuha
16 dimes = $1.60
<em>12 quarters</em><em> </em>= $3.00
7 0
3 years ago
A dairy farmer decides to sell three fifth of her 500 cows. How many cows will she be left with after the deal is complete?
seraphim [82]
Answer is 200 cows
Step by step
She is selling 3/5 of 500
Multiply across 3/5 x 500
1500/5 divide to get 300 sold
Now 500-300 sold = 200 cows left
Problem solved
3 0
1 year ago
The bearing from the Pine Knob fire tower to the Colt Station fire tower is N 65°E and the two towers are 30 kilometers apart. A
Novay_Z [31]

Answer:

The distance of fire from Pine Knob fire tower is 42.43 km

The distance of fire from Colt Station fire tower is 15.53 km

Step-by-step explanation:

Consider point A as Pine Knob fire tower and Point B as Colt Station fire tower. So the distance between both towers that is AB is 30 km.  

Now both fire tower  are located at a bearing of N65°E. That is at point A from north, Colt station fire tower is located at an angle of 65° towards east.

From ranger on Pine knob tower, fire spotted makes bearing of N80°E. That is at point A from north fire is located at an angle of 80° towards east.

Similarly, from ranger on Pine knob tower, fire spotted makes bearing of S70°E. That is at point B from south fire is located at an angle of 70° towards east.  

Now calculate \theta_{1}=\angle BAC and \theta_{2}=\angle ABD as follows,  

For \theta_{1}=\angle BAC

\angle XAC=\angle XAB+\angle BAC

\therefore 80\degree=65\degree+\angle BAC

\therefore \angle BAC=15\degree

For \theta_{2}=\angle ABD

By using alternate angle property,

\ angle XAB =\angle ABD=65\degree

Refer attachment 1.  

From diagram consider the triangle ABC. To find the third angle that is \angle BAC can be calculated by using angle sum property of triangle.  

\angle BAC+\angle ABC+\angle BCA=180\degree

\therefore15\degree +135\degree +\angle BCA=180\degree

\therefore \angle BCA=30\degree

Refer attachment 2.  

Sine rule for the \Delta ABCcan be applied as follows,  

\ddfrac{\sin A}{a}=\dfrac{\sin B}{b}=\dfrac{\sin C}{c}

Substituting the values,

\dfrac{\sin 15}{a}=\dfrac{\sin 135}{b}=\dfrac{\sin 30}{30}

Now distance AC and BC can be calculated as follows,  

For distance AC,  

\dfrac{\sin 135}{b}=\dfrac{\sin 30}{30}

Cross multiplying,  

30\times\sin 135=b\times\sin 30

\dfrac{30\times \sin 135}{\sin 30}=b

b=42.43\:km

The distance of fire from Pine Knob fire tower is 42.43 km

For distance BC,  

\dfrac{\sin 15}{a}=\dfrac{\sin 135}{42.43}

Cross multiplying,  

42.43\times\sin 15=a\times\sin 135

\dfrac{42.43\times \sin 15}{\sin 135}=a

a=15.53\:km

The distance of fire from Pine Knob fire tower is 15.53 km

6 0
3 years ago
The fuel gauge in Nick's car says that he has 26 miles to go until his tank is empty he passed a fuel station 19 miles ago and t
satela [25.4K]

Answer:

no

Step-by-step explanation:

26-8=18

then to turn around and go back he would have to go 27 (8+19) miles to get back the the other.

8 0
3 years ago
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