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Fantom [35]
2 years ago
10

Given the system of equations, what is the y-coordinate of the solution?

Mathematics
2 answers:
dolphi86 [110]2 years ago
7 0
5(5-3/2y) - 4y = 7

Simplify:

25 - 15/2y - 4y = 7
-15/2 y - 8/2 y = 7-25 
23/2 y = 18
y = 18 * 2/23 = 36/23

bulgar [2K]2 years ago
6 0
If you plug in the second equation (x=5-3/2y) into the first, you get:

5(5-3/2y) - 4y = 7

Simplify:

25 - 15/2y - 4y = 7
-15/2 y - 8/2 y = 7-25 
23/2 y = 18
y = 18 * 2/23 = 36/23

answer B!
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An angle measures 29° . what is the measure of its complement?
Olenka [21]
Complementary angles add up to 90 so 90-29=the complement, which is 61.
7 0
3 years ago
Use a graphing calculator to approximate the vertex of the graph of the parabola defined by the following
gregori [183]

Answer:

  (1/4, 5 7/8)

Step-by-step explanation:

The vertex is the extreme point of the graph. Here, it is a minimum.

For this quadratic function, a graphing calculator can tell you exactly what the vertex is. (No approximation is required.)

__

The graphing calculator in the attachment shows the vertex is ...

  (0.25, 5.875) = (1/4, 5 7/8)

8 0
1 year ago
9/10 - 3/14_______ps in simplest form
neonofarm [45]
9/19 - 3/14
= 126/140 - 57/140
= 69/140
3 0
2 years ago
Can someone do 15?!?!?
andrew-mc [135]

<u>Given</u>:

The given triangle is a right triangle.

The length of the hypotenuse is 31 units.

The length of the leg is 23 units.

One of the angle is x.

We need to determine the value of x.

<u>Value of x:</u>

The value of x can be determined using the trigonometric ratio.

Thus, we have;

sin \ \theta=\frac{opp}{hyp}

Substituting \theta=x, the side opposite to the angle x measures 23 units and the hypotenuse is 31.

Thus, we have;

sin \ x=\frac{23}{31}

Dividing, we get;

sin \ x=0.74

Taking sin ^{-1} on both sides of the equation, we get;

x=sin^{-1}(0.74)

x=47.7

Rounding off to the nearest whole integer, we get;

x=48

Thus, the value of x is 48°

Hence, Option c is the correct answer.

5 0
3 years ago
2/5×3/7+3/10+1/14×2/5​
Irina-Kira [14]

The answer is 1/2

please see the attached picture for full solution

Hope it helps

4 0
2 years ago
Read 2 more answers
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