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xxTIMURxx [149]
3 years ago
14

What is the slope of the line through (-7.-8) and (0.4)?​

Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
7 0

Use the equation (x2-x1)/(y2-y1)

Substitute the value of x and y

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How many packs of DVD's can you buy with 165 dollars if one pack costs 11 dollars ?
Snowcat [4.5K]
You can find 15 DVDs.

165 divided by 11 = 15
4 0
3 years ago
Read 2 more answers
Determine the solution to the equation x²6x=-13
Citrus2011 [14]

Answer:

x = \frac{\sqrt[3]{468}}{6}

or x =~ -1.29399

Step-by-step explanation:

Calculate the product. x^2 * 6x = 6x^3

divide both sides by 6. x^3 = -13/6

Take the root of both sides. x = \frac{\sqrt[3]{468}}{6}

3 0
3 years ago
Help! Sorry if it’s hard to see it would not look different everytime I retook the picture! :)
pshichka [43]

Answer:

d = 11.401754

For:
(X1, Y1) = (5, 4)
(X2, Y2) = (-4, -3)


Distance Equation Solution:

=√ (-4−5)2+(−3−4)2

=√ (-9)2+(−7)2

=√ 81+49

=√ 130

=11.401754
5 0
3 years ago
If f(x) = 8 – 10x and g(x) = 5x + 4, what is the value of (fg)(–2)?
Vedmedyk [2.9K]
F(x) = 8 - 10x

g(x) = 5x + 4

Finding (fg)(-2).

First let us find fg(x),  this is the same as f(g(x))

f(g(x))

f(5x + 4)

Recall, f(x) = 8 - 10x, therefore f(5x + 4) would be such that anywhere we see x in the f(x), we replace it with 5x + 4

f(x) = 8 - 10x

f(5x +4) =  8 - 10(5x + 4)

             =  8 - 50x - 40

             = -50x + 8 - 40

             =  -50x - 32

f(g(x)) = fg(x) = -50x - 32

fg(-2) = -50*(-2) - 32 = 100 - 32 = 68

Therefore fg(-2) = 68

I hope this helped.
5 0
3 years ago
5. A monument casts a 78 ft. shadow at the same time that a vertical yardstick casts a 4.5 ft. shadow. How high is the monument?
rodikova [14]

Hello,

Using Thalès 's theorem:

Let's h the height of the monument.

\dfrac{1}{h} =\dfrac{4.5}{78} \\\\h=\dfrac{78}{4.5} =\dfrac{156}{9} \approx{17.3\ (ft)}

If you don't know what is the Thalès's theorem,

imagine that the similar triangles.

5 0
2 years ago
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