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mezya [45]
3 years ago
14

Someone please help me this is the last question on my homework. I have to write a quadratic equation for this word problem...

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
5 0

Answer:

57xsqaure-42x=5.5

Step-by-step explanation:

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4 years ago
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What is the sum of the first thirteen terms in a geometric series with a<br> r = 3 a1= -10
Ipatiy [6.2K]

To calculate the sum of the first thirteen terms of the geometric series, we use the formula below.

Formula:

  • S₁₃ = a(rⁿ-1)/(r-1).............. Equation 1

Where:

  • S₁₃ = Sum of the first thirteen terms of the geometric series.
  • a = First term of the series
  • r = Common ratio

Given:

  • a = -10
  • r = 3
  • n = 13

Substitute these values into equation 1

  • S₁₃ = -10(3¹³-1)/(3-1)
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7 0
2 years ago
18. For the following exercises, use the descriptions of each pair of lines given below to find the slopes of Line 1 and Line
dolphi86 [110]

Answer:

The given lines are parallel.

Step-by-step explanation:

In the question, two lines are given as line 1 passes through (0,6) and (3,-24). Whereas, line 2 passes through (-1,19) and (8,-71).

It is required to find the slope of given lines and figure out whether they are perpendicular, parallel or neither.

To solve this question, first find the slope of both lines. Check if their product is equal to -1, then they are perpendicular. If the slopes are equal the lines are parallel

Step 1 of 2

Find the slope of first line.

$$\begin{aligned}&m_{1}=\frac{-24-6}{3-0} \\&m_{1}=\frac{-30}{3} \\&m_{1}=-10\end{aligned}$$

Step 2 of 2

Find the slope of first line.

$$\begin{aligned}&m_{2}=\frac{-71-19}{8-(-1)} \\&m_{2}=\frac{-90}{9} \\&m_{2}=-10\end{aligned}$$

Since, both slopes are equal.

Therefore, the lines are parallel.

6 0
2 years ago
What is 100-200x300-299
lilavasa [31]
It's -60199
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4 0
3 years ago
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Find the length of the missing side and show the work please
Yanka [14]

Answer:

13 cm

Step-by-step explanation:

Using Pythagorean theorem

5²+12²=c²

25+144=c²

169=c²

In order to get rid of the ² it has to be square rooted

√169=√c²

c = 13

5 0
3 years ago
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