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den301095 [7]
3 years ago
9

F(x) = 8x - 1Find f(-10) = ​

Mathematics
1 answer:
In-s [12.5K]3 years ago
8 0

Answer:

-81

Step-by-step explanation:

f(x) = 8x -1

f(-10) = 8(-10) -1

f(-10) = -80-1

f(-10) = -81

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4 1/2+5 7/8<br><img src="https://tex.z-dn.net/?f=help%20%5C%3A%20please%20%5C%3A%20" id="TexFormula1" title="help \: please \: "
Rasek [7]
9/2+5/78
9/2+47/8
83/8
10 3/8
decimal form 10.375.
hope this helps!
7 0
3 years ago
6. The base of a triangular field is three times its height. If the cost of cultivating the field
dedylja [7]

Answer:

base = 519.62, height = 173.21 m

Step-by-step explanation:

Let the base and height of the triangle be represented by b and h respectively.

Thus,

b = 3h

Area of a triangle = \frac{1}{2} x base x height

For the given triangle,

area = \frac{1}{2} x b x 3h

       = \frac{3}{2}bh

Area of the triangle = \frac{3}{2}bh

To determine the number of hectares,

36 per hectare = 486

hectare = \frac{486}{36}

             = 13.5

numbers of hectares = 13.5

Area of the hectares = number of hectares x 10 000 m²

                                   = 13.5 x 10 000

                                  = 135000

Total area of the hectares = 135 000 m²

So that,

area of the hectares = area of the triangle

area of the triangle = \frac{3}{2}bh

135 000 = \frac{3}{2}bh

270000 = 3bh

bh = \frac{270000}{3}

     = 90000

bh = 90000

But, b = 3h

3h x h = 90000

3h^{2} = 90000

h^{2}  = \frac{90000}{3}

     = 30000

h = \sqrt{30000}

  = 173.2051

h = 173.21 m

So that,

b = 3 x 173.2051

  = 519.6153

b = 519.62

Therefore, the base of the triangle is 519.62 m, while the height is 173.21 m.

7 0
4 years ago
Y=6/13X is a proportional relationship
Ivan

Answer:

x in (-oo:+oo)

Y = (6/13)*x // - (6/13)*x

Y-((6/13)*x) = 0

Y+(-6/13)*x = 0

Y-6/13*x = 0 // - Y

-6/13*x = -Y // : -6/13

x = -Y/(-6/13)

x = 13/6*Y

x = 13/6*Y

5 0
3 years ago
on Monday Jimmy went to see a movie that was 112 minutes long jimmy was late and missed first 12 minutes of the movie what fract
fgiga [73]

Answer:

100 / 112

Step-by-step explanation:

100 miniuts is a part of 112 adn is not a fraction and it does not say to siplify so you should be good.

6 0
3 years ago
Solve distance 120 meters time 30 seconds
lana66690 [7]

Answer:

4 meters per second

Step-by-step explanation:

120 divided by 30 = 4

8 0
3 years ago
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