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Schach [20]
3 years ago
8

Please help me I don’t understand

Mathematics
1 answer:
klemol [59]3 years ago
8 0

Answer: D

Step-by-step explanation:

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Look at this graph:
o-na [289]
<h2>Answer:</h2>

The Slope is \frac{2}{3}\\

<h2>Explanation:</h2>

Notice that both the points, (0,20) and (20,50), are on the line. So we can use those points to calculate the slope. Recall that that slope of the line m can be calculated by \frac{y_2 -y_1}{x_2 -x_1}\\ if we have the points, (x_1,y_1) and (x_2,y_2).

<h3>Calculating for the slope of the line:</h3>

Given:

(0,20)

(20,50)

m = \frac{50 -20}{20 -0} \\ m = \frac{30}{20} \\ m = \frac{2}{3}

3 0
3 years ago
Read 2 more answers
What can 85 slpit into
lawyer [7]

if you mean what is half of 85, it's 42.5

5 0
3 years ago
Read 2 more answers
I need help on the Quadratic Formula.
sasho [114]
1. 3x² + 12x - 15 = 0
    x = <u>-(12) +/- √((12)² - 4(3)(-15))</u>
                             2(3)
    x = <u>-12 +/- √(144 + 180)</u>
                           6
    x = <u>-12 +/- √(324)
</u>                     6<u>
</u>    x = <u>-12 +/- 18 </u>
                  6
    x = -2 <u>+</u> 3
    x = -2 + 3                 x = -2 - 3
    x = 1                         x = -5
--------------------------------------------------------------------------------------------
2. 5x² + 11x + 2 = 0
    x = <u>-(11) +/- √((11)² - 4(5)(2))</u>
                           2(5)
    x = <u>-11 +/- √(121 - 40)</u>
                       10
    x = <u>-11 +/- √(81)
</u>                  10
    x = <u>-11 +/- 9</u>
                10
    x = -1¹/₁₀ <u>+</u> ⁹/₁₀
    x = -1¹/₁₀ + ⁹/₁₀        x = -1¹/₁₀ - ⁹/₁₀
    x = ¹/₅                      x = -2
--------------------------------------------------------------------------------------------
3. 2x² - 11x + 14 = 0
    x = <u>-(-11) +/- √((-11)² - 4(2)(14))</u>
                             2(3)
    x = <u>11 +/- √(121 - 102)</u>
                         6
    x = <u>11 +/- √(9)</u>
                  6
    x = <u>11 +/- 3</u>
                6
    x = 1⁵/₆ <u>+</u> ¹/₂
    x = 1⁵/₆ + ¹/₂          x = 1⁵/₆ - ¹/₂
    x = 2¹/₃                  x = 1¹/₃
--------------------------------------------------------------------------------------------
4. 2x² - x - 15 = 0
    x = <u>-(-1) +/- √((-1)² - 4(2)(-15))</u>
                            2(2)
    x = <u>1 +/- √(1 + 120)</u>
                      4
    x = <u>1 +/- √(121)</u>
                   4
    x = <u>1 +/- 11</u>
                4
    x = ¹/₄ <u>+</u> 2³/₄
    x = ¹/₄ + 2³/₄          x = ¹/₄ - 2³/₄
    x = 3                      x = 2¹/₂
<u />
4 0
3 years ago
A rental car company charges $62.50 per day to rent a car and $0.07 for every mile driven. Khadija wants to rent a car, knowing
Kamila [148]
62.50 x (0.07 x 125)
0.07 x 125=8.75
62.50 + 8.75=71.25
She can afford it.

I am sure, about the answer but not the equation

6 0
3 years ago
The numbers in this chart represent the weights in kilograms of five
Nitella [24]
John’s is the outlier
3 0
3 years ago
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