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3 years ago

Use the graph or table to write a linear function that relates y to x.

Mathematics

2 answers:

fredd [130]3 years ago

7 0

Answer:

x+2y=0

Step-by-step explanation:

salantis [7]3 years ago

6 0

Answer:

y = -1/4x - 1

Step-by-step explanation:

The equation of a line is y = slope*x + y-intercept

Find the slope by picking two points shown on the graph and doing (y1-y2)/(x1-x2): (4, -2) & (-8, 1) = (-2-1)/(4-(-8) = -3/12 = -1/4 so the slope is 4.

Find the y-intercept by seeing where the line crosses the y-axis: y= -1

So therefore, y = -1/4x - 1

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A submarine ascends to the surface at a rate of 650 feet per minute. how many minutes would it take to ascend to sea level?

Paul [167]

It depends on how deep the submarine is... do you happen to know that?

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3 years ago

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5. Choose the best answer.

lyudmila [28]

The slope-intercept form: y = mx + b

So we need to "solve" given equation for y

3.3x - 3y = 2.4 {subtracting 3.3x from both sides}

- 3y = 2.4 - 3.3x {dividing both sides by (-3)}

y = -0.8 + 1.1x

Therefore:

<h3>Slope: m = 1.1</h3><h3>y -intercept : b = - 0.8</h3><h3>slope-intercept form: y = 1.1x - 0.8</h3>

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3 years ago

What is the approximate area of the shaded sector in the circle shown below

harina [27]

Answer:

Option A. 283 cm²

Step-by-step explanation:

to find the area of the shaded sector, we use the formula:

$\frac{\text{angle given}}{360^\circ}\times \text{area of the circle}$

where area of the circle = πr²

∴ for the given circle,

$\text{Area of the sector}=\frac{\text{given angle}}{360^\circ} \times \pi r^2$

= $\frac{100}{360}\times 3.14\times 18\times 18$

= $\frac{100}{360}\times 1017.36$

= 282.6

≈ 283 cm²

The approximate area of the shaded sector is 283 cm².

4 0

3 years ago

Is 15/4 rational or irrational form

Len [333]

Answer:

rational form

Step-by-step explanation:

When 15 is divided by 4, the answer is simply 3.75 which is also a rational number.

8 0

3 years ago

Pls help:(((( I don’t understand

marissa [1.9K]

Answer:

x = 32°

Step-by-step explanation:

The main concept is that all the angles in a triangle add up to 180.

(For example, 60° on all three angles make it an equilateral triangle)

Since all the angles add to 180°,

$x + 98 + 5 0 = 180$

$x + 148 = 180$

Subtract 148 from both sides:

$x = 32$

Therefore, the value of x is 32°.

7 0

3 years ago

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