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fgiga [73]
3 years ago
11

I need this for my homework!!!It is due tommorow.

Mathematics
1 answer:
sladkih [1.3K]3 years ago
4 0
I solved 13-18
13. -20
14. 38
15. 16/21
16. 70
17. 12
18. 25

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4
Helen [10]

Answer:

y-intercept is (0, -4)

x-intercept is (-5, 0)

Step-by-step explanation:

Remember the x-intercept and the y-intercept are the points on the graph where the line crosses the x-axis and the y-axis respectively.

We can find the x intercept and the y intercept a couple of ways. One way is to graph the line, which I will do later. The other way is to do a little math.

The equation of a line in y-intercept form is

y = mx + b

where b = the y-intercept

In our equation above and solving for y we get the y-intercept is -4

4x + 5y =  - 20 \\ 5y =  - 4x - 20 \\ y =  -  \frac{4}{5} x - 4

Doing more algebra and solving for x we get the x intercept is negative 5.

y =  -  \frac{4}{5}  - 4 \\ y  + 4 =  -  \frac{4}{5} x \\ x =  -  \frac{5}{4} y -  \frac{20}{4 }  \\ x =  -  \frac{5}{4} y - 5

6 0
3 years ago
A triangle has a leg of 11 cm, and a hypotenuse of 17 cm, what is the length of the other leg
Vera_Pavlovna [14]
The answer to this question is 12.1695 because a^2+b^2=c^2
5 0
3 years ago
Read 2 more answers
Which would be the correct answer?
Strike441 [17]

9514 1404 393

Answer:

  (a) 5/6 < 1∴ product < 2 3/8

Step-by-step explanation:

Multiplying any number by a positive value less than 1 will reduce its magnitude. 5/6 × 2 3/8 will be less than 2 3/8 because 5/6 is less than 1.

5 0
3 years ago
What is 2x2+11x-15=0
Elanso [62]
2x^{2} + 11x - 15 = 0

Use the quadratic equation:
x = \frac{-b \pm \sqrt{b^{2} - 4ac}}{2a}
= \frac{-11 \pm \sqrt{121 - 4(2)(-15)}}{4}
= \frac{-11 \pm \sqrt{121 + 120}}{4}
= \frac{-11 \pm \sqrt{241}}{4}

\therefore x = \frac{-11 + \sqrt{241}}{4}
or x = \frac{-11 - \sqrt{241}}{4}
4 0
3 years ago
A scientist is running an experiment with
Akimi4 [234]
The correct answer A
4 0
3 years ago
Read 2 more answers
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