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Dahasolnce [82]
3 years ago
13

Zoom in closely, pls help me

Mathematics
1 answer:
JulijaS [17]3 years ago
5 0

Answer:  a = 11.1

<u>Step-by-step explanation:</u>

a(0.3 - y) + 1.1 + 2.4x = 0

Let y = 1.3 → a(0.3 - 1.3) + 1.1 + 2.4x = 0 → -a + 1.1 + 2.4x = 0 → a = 1.1 + 2.4x

(y - 1.2) = -1.2(x - 0.5)

Let y = 1.3 → (1.3 - 1.2) = -1.2(x - 0.5) → 0.1 = -1.2x + 0.6 → -0.5 = -1.2x → \dfrac{50}{12}=x\ \rightarrow\ \dfrac{25}{6}=x

a = 1.1 + 2.4x

   =1.1+2.4\bigg(\dfrac{25}{6}\bigg)

   = 1.1 + 0.4(25)

   = 1.1 + 10

   = 11.1

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A. <br> 0.643<br><br> B. <br> 0.933<br><br> C. <br> 0.600<br><br> D. <br> 0.321
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Answer:

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The height of a cable that runs between two supports on a suspension bridge can be modeled by a quadratic function () where is t
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Its vertex is at (36, -10)

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Since the cable is at its lowest height 10 feet halfway between the two supports, the y-coordinate of its lowest point is -10 ft and the x coordinate is 72 ft/2 = 36 ft.

So, its vertex is at (36, -10)

Axis of symmetry

The y-axis.

Since the cable is symmetric about its lowest point, the axis of symmetry is the y-axis.

Domain

The domain is (0, 72).

Since the minimum value of its x-coordinate is at the origin which is x = 0 and the maximum value is at the other support which is at x = 72 ft,

the domain is (0, 72).

Range

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Since the minimum value of the y-coordinate is -10ft and the maximum value is at the origin y = 0,

the range is (0, -10)

x and y-intercepts

The x-intercept is (0, 72) and the y-intercept is (0, 0)

Since the cable is attached at the origin and at 72 feet away  from the origin at the other support, the x-intercept is 0 and 72 ft and the y-intercepts are 0 and 0.

So, the x-intercept is (0, 72) and the y-intercept is (0, 0)

Learn more about quadratic functions here:

brainly.com/question/10606041

5 0
3 years ago
Object A has a mass of 12 g and a volume of 8 cm3. Object B has a mass of 20 g and a volume of 8 cm3. Which object has a greater
Andreyy89

Answer:

Obj B, by 1 g/cm^3

Step-by-step explanation:

Obj A = 12g / 8cm^3 = 3g / 2cm^3 = 1.5 g/cm^3

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4 years ago
A company has two manufacturing plants with daily production levels of 5x +14 items and 3x-7 ​items, respectively. The first pla
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Answer:

The first plant produces 2x + 21 more items daily than the second​ plant.

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Compute the number of items first plant produces more than the second​ plant as follows:

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Thus, the first plant produces 2x + 21 more items daily than the second​ plant.

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