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erastovalidia [21]
3 years ago
11

TRIGONOMETERY REVIEW PLEASE HELP DUE TOMMOROW

Mathematics
1 answer:
Alisiya [41]3 years ago
6 0

I’m pretty sure this is how you do these kinds of questions, but I may be entirely wrong, so don’t 100% trust me on this one

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Simplify the ratio 13:143
dmitriy555 [2]
You have to divide to find a common number. 143/13=11 1:11
3 0
4 years ago
Read 2 more answers
Whitch ordered pair is a solution of y>5xx-2​
jenyasd209 [6]

Answer:

y = 5x - 2 (0, 2) (1, 4) (2, 7) (3, 13)

Step-by-step explanation:

7 0
3 years ago
Which is the first step needed to solve by substitution?
fredd [130]
\begin{gathered} -x+y=-1 \\ 2x-y=3 \end{gathered}

To solve the given system of equations for substitution you:

1. Solve in one of the equations a variable.

For the given options the one that is correct is solve the first equation for y, by adding x to both sides:

\begin{gathered} -x+x+y=-1+x \\ y=-1+x \end{gathered}

4 0
2 years ago
PLEASE ANSWER URGENT!!
vampirchik [111]
K = -7

The vertex shifted from (3,1) to (3,-6)

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4 0
3 years ago
Read 2 more answers
A = x² + xy +2y-1<br>A+B= 2x² - xy - 4y-1<br>a) find A-B<br>b) if (A-B) = X<br>find y​
Alinara [238K]

Answer:

see explanation

Step-by-step explanation:

Given the 2 equations

A = x² + xy + 2y - 1 → (1)

A + B = 2x² - xy - 4y - 1 → (2)

From (2)

B = 2x² - xy - 4y - 1 - A

   = 2x² - xy - 4y - 1 - (x² + xy + 2y - 1) ← distribute parenthesis

   = 2x² - xy - 4y - 1 - x² - xy - 2y + 1 ← collect like terms

   = x² - 2xy - 6y

Hence

A - B = x² + xy + 2y - 1 - (x² - 2xy - 6y) ← distribute parenthesis

        = x² + xy + 2y - 1 - x² + 2xy + 6y ← collect like terms

        = 3xy + 8y - 1

(b)

Given A - B = x, then

x = 3xy + 8y - 1 ( add 1 to both sides )

x + 1 = 3xy + 8y ← factor out y from each term

x + 1 = y(3x + 8) ← divide both sides by (3x + 8)

y = \frac{x+1}{3x+8}

3 0
4 years ago
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