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Anna71 [15]
3 years ago
14

40 points, please help with all of them

Mathematics
1 answer:
Kitty [74]3 years ago
6 0

Answer:

\large\boxed{Q1.\ \text{2 times greater}}\\\\\boxed{Q2.\ J. 3}\\\\\boxed{Q3.\ B. -\dfrac{4}{5}}

Step-by-step explanation:

The slope-intercept form of an equation of a line:

y=mx+b

m - slope

b - y-intercept

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

Q1.

We have the equation of a line <em>p </em>in the standard form

4x-3y=7

Convert to the slope-intercept form:

4x-3y=7               <em>subtract 3x from both sides</em>

-3y=-4x+7              <em>divide both sides by (-3)</em>

y=\dfrac{4}{3}x-\dfrac{7}{3}

The slope m_1=\dfrac{4}{3}

From the table we have the points (4, 3) and (7, 5). Calculate the slope of line <em>q</em>:

m_2=\dfrac{5-3}{7-4}=\dfrac{2}{3}

Divide the slope of <em>p</em> by the slope of <em>q</em>:

\dfrac{4}{3}:\dfrac{2}{3}=\dfrac{4}{3}\cdot\dfrac{3}{2}=2

Q2.

Parallel line have the same slope. Therefore, if we have the equation of the line in the slope-intercept form, then we have the slope:

y=3x+2\to m=3

Q3.

Parallel line have the same slope.

Calculate the slope from given points (-11, 5) and (-6, 1):

y=\dfrac{1-5}{-6-(-11)}=\dfrac{-4}{-6+11}=\dfrac{-4}{5}=-\dfrac{4}{5}

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I think it would be A
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Mr. Jay checks the pantry to see what he needs to get at the grocery store. 1 point
inessss [21]

Answer:

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Step-by-step explanation:

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A round balloon has a diameter of 7 inches
gizmo_the_mogwai [7]

Answer:

The right answer is approximately 210.031 cubic inches. (Answer: E)

Step-by-step explanation:

First, we need to convert the diameter (D), in inches, of the round balloon to an entirely decimal mode:

D = 7\,in + \frac{3}{8}\,in

D = \frac{56 + 3}{8}\,in

D = \frac{59}{8}\,in

D \approx 7.375\,in

The volume of the balloon is modelled after the volume function of a sphere (V), in cubic inches:

V = \frac{\pi}{6}\cdot D^{3} (1)

If we know that D \approx 7.375\,in, then the volume of the round balloon is:

V = \frac{\pi}{6}\cdot D^{3}

V = \frac{\pi}{6} \cdot (7.375\,in)^{3}

V \approx 210.031\,in^{3}

Hence, the right answer is approximately 210.031 cubic inches.

6 0
3 years ago
Please help ASAP <br> 16. Find the perimeter.<br> 10<br> 60°<br> 16
vladimir2022 [97]

Answer:

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