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2 years ago

13. Find the measure of

Mathematics

1 answer:

Oksanka [162]2 years ago

7 0

Answer:

i think it would be 48 degrees because of where the opening is

Step-by-step explanation:

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How do you know if the graph will be dotted or solid when graphing linear inequalities?

Softa [21]

Answer: look at the symbols <, > and <=, >=

Step-by-step explanation:

If the inequality is < or >, graph the equation as a dotted line. If the inequality is <= or >=, graph the equation as a solid line.

3 0

2 years ago

-3x+4y=7 y=3x-5 I NEED HELP PL Z HELP ME

andrew-mc [135]

$- 3x + 4y = 7 \\ y = 3x - 5$

[Substitute the given value of y into the first equation]

$- 3x + 4 \times (3x - 5) = 7$

[Distribute 4 through the parentheses]

$- 3x + 12x - 20 = 7$

[Collect like terms]

$9x - 20 = 7$

[Move the constant to the right-hand side and change its sign]

$9x = 7 + 20$

[Add the numbers]

$9x = 27$

[Divide both sides of the equation by 9]

$x = 3$

[Substitute the given value of x into the second equation]

$y = 3 \times 3 - 5$

[Multiply the numbers]

$y = 9 - 5$

[Subtract the numbers]

$y = 4$

[The possible solution of the system is the ordered pair (x,y)]

$(x,y)=(3,4)$

3 0

2 years ago

Log(x+3)(2x+3)+log(x+3)(x+5)=2

trasher [3.6K]

log(x-3)+log(x) = 2 + log(x+2)
---------------------------
log[(x-3)x] - log(x+2) = 2
-----
log[(x^2-3x)/(x+2)] = 2
----
(x^2-3x)/(x+2) = 2^2
-------

x^2-3x = 4x+8
x^2 - 7x - 8 = 0
Factor:
(x-8)(x+1) = 0
Positive solution:
x = 8

4 0

3 years ago

Which of the following equations is equivalent to

sveticcg [70]

Answer:

I think the answer is c

Step-by-step explanation:

sorry if it's wrong

6 0

2 years ago

Write the equation of the line that represents this graph.

ExtremeBDS [4]

Y=-2/3x+300
the y intercept is 300 and the slope is -2/3
y=mx+b

8 0

2 years ago