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ladessa [460]
3 years ago
6

Which expression can be used to determine the slope of the line that passes through the points (–7, 3) and (1, –9)?

Mathematics
2 answers:
cluponka [151]3 years ago
7 0
To determine the slope, you can use the following formula:

(y2-y1)/(x2-x1)
nevsk [136]3 years ago
7 0
The distance formula is one method

The change in y over the change in x equals the slope.

(-7, 3) & (1, -9)

To get from 1 to -7 you subtract 8
To get from -9 to 3 you add 12

12/-8 reduces to 3/-2

The slope is 3/-2
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What is the greatest common factor of the terms in the polynomial 4x^4-32x^3-60x^2?
jonny [76]

Answer:

\mathrm{Factor}\:4x^4-32x^3-60x^2:\quad 4x^2\left(x^2-8x-15\right)\\

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<em>Hope this helps and have a great day!!!</em>

<em>Sofia</em>

4 0
3 years ago
After the last ice age began, the number of animal species in Australia changed rapidly. The relationship between the elapsed ti
Anarel [89]

Answer:

Every decade, the number of species decays by a factor of 0.0834.

Step-by-step explanation:

Let be S(t) = 25,000,000\cdot 0.78^{t}, \forall t \geq 0. The decay rate per decay is deducted from the following relation:

\frac{S(t+10)}{S(t)} = \frac{25,000,000\cdot 0.78^{t+10}}{25,000,000\cdot 0.78^{t}}

\frac{S(t+10)}{S(t)} = 0.78^{t+10-t}

\frac{S(t+10)}{S(t)} = 0.78^{10}

\frac{S(t+10)}{S(t)} = 0.0834

Every decade, the number of species decays by a factor of 0.0834.

6 0
3 years ago
A swift can fly at 160km/h. what is the speed in m/s? show clearly how you worked out your answer.
Oduvanchick [21]

Step-by-step explanation:

Given \: speed \:  = 160km| h  \\ To \: find \: speed \: in \: m|s \\ Solution \: speed \:  = 160km|h \\  = (160 \times \frac{5}{18}) \: m|s \\  =  \frac{800}{18} m|s \\  = 44.44m|s \\ Hence \: speed \:  = 44.44m|s...

<em>hOpE</em><em> </em><em>iT</em><em> </em><em>hElPs</em><em> YoU</em>

<h3><em><u>I</u></em><em><u> </u></em><em><u>nEEd</u></em><em><u> bRainLIeST</u></em></h3>
7 0
3 years ago
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3 years ago
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lorasvet [3.4K]

Answer:

d = -13

Step-by-step explanation:

Subtract 4.7 from both sides to get d by itself

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7 0
2 years ago
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