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Bogdan [553]
4 years ago
13

Which ordered pair is a solution of the system of equations?

Mathematics
1 answer:
levacccp [35]4 years ago
3 0
{y=3x+1 |*5
{y=5x-3 |*(-3)

{5y=15x+5
{-3y=-15x+9
+___________
2y=14

{y=7
{7=3x+1

{3x=6
{y=7

{x=2
{y=7

The answer: C

:)

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Describe two ways in which you can solve, -1/2(5x-9)=17
MakcuM [25]

Answer:

One way is to:

First, multiply 2 by the term inside the parenthesis.

Second, add eleven on both sides.

Third, divide using 4x on both sides.

This will give you your first method.

Now try to get the second on your own.

Step-by-step explanation:

7 0
3 years ago
Solve for the value of X in 9^x+4(3^x+1)+27=0​
worty [1.4K]

Answer:

No solutions

Step-by-step explanation:

9^x + 4(3^x + 1) + 27 = 0\\3^{2x} + 4 \cdot 3^x + 31 = 0

Substitute 3^x with t and we get.

t^2 + 4t + 31 = 0\\\triangle = 16 - 4 \cdot 31 = -108 < 0 => t_{12} \notin R => x \notin R

3 0
4 years ago
00B0J0DD:
Firdavs [7]

Answer: B.

Explanation and reasoning:

6 0
2 years ago
What is the approximate volume of a cylinder with a height of 2 ft and a radius of 6 ft? Use 3.14 to approximate pi. Express you
Keith_Richards [23]
Your answer would be an almighty

0 jk




It would be 226.08ft^3
8 0
3 years ago
Please Helppppp☺️☺️☺️☺️☺️
pishuonlain [190]
Hi there!

Since one of the angles in this set of 2 lines is a right angle, we know that every other angle is a right angle because vertical angles are congruent and that because each line has a total of 180 degrees.

Thus, Angle NDA and RDY are both 90 degrees and add up to 180 degrees.

Since the two angles add up to 180, they are supplementary angles.

Also, we should notice that those two angles are across each other. Thus, they are also vertical angles.

Your answers are choices B and C.

Have an awesome day! :)
6 0
3 years ago
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