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VMariaS [17]
3 years ago
5

PLEASE HELP FAST :(

Mathematics
1 answer:
Ket [755]3 years ago
4 0
Write the equation of the line passing through the points (-7,5) and (-5,9):
y-5= \dfrac{9-5}{-5-(-7)} (x-(-7)) \\ y-5= \dfrac{4}{2}(x+7) \\ y-5=2(x+7).
You also have another two points (-3,13) and (-1,17). Look whether coordinates of these points satisfy the line equation:

1. For (-3,13) you have
 13-5=2(-3+7) \\ \{8=8\};

2. For (-1,17) you have
 17-5=2(-1+7) \\ \{12=12\}.

Conclusion: All four points lie on the line y-5=2(x+7), so <span>the relationship shown by the data is linear.</span>

Answer: Correct choice is D.<span />



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polet [3.4K]
Well 3 x 7 + 9= 30
so 30<span> divided by 36 = 1.2
answer: 1.2</span>
3 0
3 years ago
Read 2 more answers
What are the coordinates of point A?<br><br> o (5, 1)<br><br> (1, 5)<br><br> O (-1, 5)
leonid [27]

Answer:

(1, 5)

Step-by-step explanation:

x  is 1 to the right

y is 5 up

Therefor

(1, 5)

8 0
3 years ago
Write the inverse of g(x) = e x<br><br> g -1(x) = _____.
mezya [45]

Answer:

g^{-1} (x) = \ln x

Step-by-step explanation:

From the definition if inverse function we can say if y = f(x) and x = h(y) then h(x) is the inverse function of f(x).

Here the given function is g(x) = e^{x} and we have to find the g^{-1} (x) i.e. the inverse function of g(x).

Now, let us assume y = g(x) = e^{x}

Now, taking ln both sides we get, \ln y = \ln e^{x} = x \ln e = x  

{Since \ln e = 1}

⇒ x = \ln y

Therefore, g^{-1} (x) = \ln x (Answer)

6 0
3 years ago
on a blueprint, the height of a door is 0.4cm. the actual height of the door is 2m. What is the scale on the blueprint?
Roman55 [17]

Step-by-step explanation:

2 m corresponds to 0.4 cm on a blueprint.

so,

2 m / 0.4 cm = 200 cm / 0.4 cm

our fun the point of view of the blueprint

0.4 cm / 200 cm

the scale on a map or blueprint is usually normed to one unit on the blueprint :

0.4/200 × f/f = 1/(200×f)

0.4 × f = 1

f = 1/0.4 = 2.5

so, our scale is

(0.4 × 2.5) / (200 × 2.5) = 1 / 500

that means 1 cm on the blueprint corresponds to 500 cm or 5 m in reality.

4 0
2 years ago
in 2008 870 students signed up for the town soccer program. this was 125% of the number who signed up in 2004 . how many student
matrenka [14]

Answer:

653

Step-by-step explanation:

6 0
3 years ago
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