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rodikova [14]
3 years ago
14

What ordered pair is a solution of the equation 2x-y=9

Mathematics
2 answers:
Lelu [443]3 years ago
6 0

figure it out when you do it on school sights?

ss7ja [257]3 years ago
3 0

(0,−9),(1,x−9),(2,4x−9)

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Please help i dont understand​
Greeley [361]

Given:

A quadrilateral inscribed in a circle.

To find:

The value of x and y.

Solution:

If a quadrilateral inscribed in a circle, then it is known as cyclic quadrilateral and the opposite angles of a cyclic quadrilateral are supplementary angles, it means their sum is 180 degrees.

5x^\circ+110^\circ=180^\circ                     [Supplementary angles]

5x^\circ=180^\circ -110^\circ

x^\circ=\dfrac{70^\circ}{5}

x^\circ=14^\circ

The value of x is 14 degrees.

2y^\circ+104^\circ=180^\circ                     [Supplementary angles]

2y^\circ=180^\circ -104^\circ

y^\circ=\dfrac{76^\circ}{2}

y^\circ=38^\circ

Therefore, the value of x is 14 degrees and the value of y is 38 degrees.

3 0
3 years ago
Three roots of the polynomial equation x4 - 4x3 - 2x2 + 12x + 9 = 0 are 3, -1 and -1. Explain why the fourth root must be a real
LiRa [457]
Descares Theorem says that the number of roots of a polynomial is equal to its highest exponent, and the roots could be real and/or imaginary (complex).

However is their is one complex root (a + i.b), it's conjugate is also
a root (a-i.b).

In the equation x⁴ - 4x³ - 2x² + 12x + 9 = 0, we have already 3 roots, then the 4rth cannot be a complex one since we don't have a fifth for its conjugate.

3 0
3 years ago
If you eat 3 crackers in 5 seconds. How many seconds will it take to eat 50,00 crackers
zavuch27 [327]
Multiply 50,00 times 3
3 0
2 years ago
Read 2 more answers
When computing the standard deviation, does it matter whether the data are sample data or data comprising the entire population?
rusak2 [61]

Answer:

Yes. When computing the sample standard deviation, divide by n −1. When computing the population  standard deviation, divide by N

Step-by-step explanation:

4 0
3 years ago
ASAP, Can someone find the volume of this please?
kirill [66]

Answer:

416.52 cm cubed

Step-by-step explanation:

first find the volume of the rectangle using LxWxH and you get 360

then get the diamiter of the semi sphere by seing that it is the same size as the width. then to get the radius divide the diamiter by 2. the find the volume of the semi sphere using 2π3^r/3 and you get about 56.52 ( i say about because i used 3.14 instead of all of pie.) then add 360 and 56.52 and you get the volume of this which is 416.52 cm cubed. dont forget the cubed!

could i get brainliest? :)

4 0
2 years ago
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