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ValentinkaMS [17]
3 years ago
5

Two equations are given below:

Mathematics
2 answers:
kumpel [21]3 years ago
6 0
Since a = b - 2, we can substitute this value into the other equation to find the value of b.  Once we have a value for b, we substitute it back into one of the equations to find the value for a.

a - 3b = 16
b - 2 - 3b = 16
-2 - 2b = 16
-2b = 18
b = -9

Now substitute back into the equation

a = b - 2
a = -9 - 2
a = -11

Solution set in the form (a, b) is...

(-11, -9)
Whitepunk [10]3 years ago
5 0
Asking the Math Gods...


a=-11
b=-9
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Nitella [24]

Answer: The correct answer is B.

Step-by-step explanation: To simplify a square root, you take the factors of the value in the square root and see the greatest factor that is a square. In this case, 49 is the greatest square factor of 98. You take the square root of 49, which is 7. 7 goes outside the radicand. Leave 2 inside the radical because 49 x 2 = 98. Hence, the correct answer is B.

7 0
2 years ago
Angle c is inscribed in circle O. AB is a diameter of circle O. what is the radius of circle.​
Llana [10]

Answer:

The value of radius is 7.5 units

Step-by-step explanation:

Given that a line that pass through the origin and form a triangle is a right-angle triangle. So in order to find the diameter/hypotenuse, you have to use Pythogaras Theorem :

{c}^{2}  =  {a}^{2}  +  {b}^{2}

Let a = 12 units,

Let b = 9 units,

Let c = hypo.,

{hypo.}^{2}  =  {12}^{2}  +  {9}^{2}

{hypo.}^{2}  = 225

hypo. =  \sqrt{225}

hypo. = 15 \:  \: units

We have found out that the hypotenuse of the triangle is the diameter of circle. So in order to find radius, you have to divide it by 2 :

radius = diameter \div 2

radius = 15 \div 2

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6 0
3 years ago
Ken drew a pair of intersecting rays and marked the angle between them.
lilavasa [31]
The best and most correct answer among the choices provided by your question is the fourth choice.

<span>The rays extend infinitely and the angle is made by the rays which have a common endpoint.</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
4 0
4 years ago
Read 2 more answers
Divide: 6 ÷ 1/2=12
schepotkina [342]
I believe the answers are:
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2. Two equal parts
3. 6 parts would be shaded
6 0
3 years ago
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Cerrena [4.2K]

Answer:

18900 watt-hours

Step-by-step explanation:

3600 x 24 (hours in a day) = 150

150 x 6 (hours) = 900

3600 (watt hours per day) x 5 (days) = 18000

18000 x 900 = 18900

total= 18900

8 0
3 years ago
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