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2 years ago

For which intervals is the function positive?

Mathematics

1 answer:

REY [17]2 years ago

5 0

Answer:

b 4 sideways 8

Step-by-step explanation:

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Help me quick please

olganol [36]

Answer:

(6, -4)

Step-by-step explanation:

To solve a linear system of equations graphically, graph the given equations and locate where the two lines intersect. The point of intersection is the solution to a system of linear equations.

Given linear system of equations:

$\begin{cases}y=-x+2\\x-3y=18\end{cases}$

Rewrite the second equation to make y the subject:

$\implies x-3y=18$

$\implies x-18=3y$

$\implies y=\dfrac{1}{3}x-6$

To graph a linear equation, find two points on the line by substituting two values of x into the equation. Plot the points and draw a straight line through them.

Equation 1

$x=0 \implies y=-(0)+2=2 \implies (0, 2)$

$x=9 \implies y=-(9)+2=-7 \implies (9, -7)$

Equation 2

$x=0 \implies y=\dfrac{1}{3}(0)-6=-6 \implies (0,-6)$

$x=9 \implies y=\dfrac{1}{3}(9)-6=-3 \implies (9,-3)$

From inspection of the graph (see attached), the point of intersection is (6, -4).

Learn more about systems of equations here:

brainly.com/question/27868564

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5 0

8 months ago

Three times certain number increased by four is equal to 16. Find the number.

Artemon [7]

Answer:

Step-by-step explanation:

(4 X 3) + 4 = 16

8 0

2 years ago

4. 2/3 of the students in Sarah’s class are boys. Of the boys, 13 of them wear glasses. What fraction of the students are boys t

Ymorist [56]

Yes let's find

The fraction is

$\\ \rm\Rrightarrow 13/2/3$

$\\ \rm\Rrightarrow 13(3)/2$

$\\ \rm\Rrightarrow 39/2$

4 0

1 year ago

Read 2 more answers

If x=5, then 3x+4x-15 equals what

Troyanec [42]

Answer: 20

Step-by-step explanation:

Data: x=5 and 3x+4x-15

First step, Insert the 5 and multiply

3(5)+4(5)-15=15+20-15

Second step, add 15+20=35

Final step, subtract 35-15=20

The answer is 20

I hope this helps!

3 0

2 years ago

HELP PLEASE!!!!

Yuri [45]

Answer:

eh..you probaly shouldnt trust me

Step-by-step explanation:

8, and (8+2) = 10 Therefore the second term is 10. Another arithmetic sequence of common difference-5 and first term 15. The firs two terms of this sequence are: 15, and (15 - 5) = 10. Therefore again a 10 as second term.

8 0

2 years ago