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alexira [117]
3 years ago
6

there are 30 cities in a country. Each city has 4 highways coming out of it. How many highways connecting 2 cities are there in

this country?
Mathematics
1 answer:
CaHeK987 [17]3 years ago
4 0

Answer:

29

Step-by-step explanation:

There would be 29 highways connecting 2 cities

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PLEASE HELP ME I need help on this ASAP!!
Deffense [45]

Answer:

help on what

Step-by-step explanation:

5 0
3 years ago
Use the given cost table for the same product from two different companies to create a linear system.
viktelen [127]

40 garments need to be dry cleaned for the two companies to have the same cost.

<h3>Linear equation</h3>

Linear equation is in the form:

y = mx + b

where y, x are variables, m is the rate of change and b is the initial value of y.

Let f(x) represent the cost for dry cleaning at Company 1. Hence using the points:

  • (5, 115.25) and (15, 155.75)

y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)\\&#10; \\&#10;y-115.25=\frac{155.75-115.25}{15-5}(x-5)\\&#10; \\&#10;y=4.05x+95

Let g(x) represent the cost for dry cleaning at Company 2. Hence using the points:

  • (5, 45.25) and (15, 105.75)

y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)\\&#10; \\&#10;y-45.25=\frac{105.75-45.25}{15-5}(x-5)\\&#10; \\&#10;y=6.05x+15

For the cost to be the same:

4.05x + 95= 6.05x + 15

x = 40

40 garments need to be dry cleaned for the two companies to have the same cost.

Find out more on Linear equation at: brainly.com/question/14323743

7 0
2 years ago
F(x)=-5x-7 g(x)=6x-4<br><br> Find F(x)+g(x)<br><br> Please show steps
olga_2 [115]

Answer:

hi!

So it gives you what f(x) equals AND what g(x) equals.

So, if you want F(x)+g(x), then just fill it in!

So it would be

-5x - 7 +6x - 4

-5x+5x-7+6x+5x-4

-7+11x-4

-7 + 7 +11x - 4+7

So, your answer would be 11x + 3

Hope i helped!

5 0
3 years ago
A and B are centres of two circles of radii 8 cm and 1 cm such that AB =13 cm and angle ACB =90 degree where C is the centre of
Artyom0805 [142]

Answer:

50.28 sq. cm.

Step-by-step explanation:

A and B are centers of two circles of radii 8 cm and 1 cm such that AB =13 cm.

Now, angle ACB =90 degree where C is the center of another circle which touches the above two circles.

Now, ABC forms a right triangle where AB = 13 cm, AC = (r + 8) cm and BC = (1 + r) cm.

{Where r is the radius of the circle C.

Applying Pythagoras Theorem. AB² = AC² + BC²

⇒ 13² = (r + 8)² + (r + 1)²

⇒ 169 = r² + 16r + 64 + f² + 2r + 1

⇒ 2r² + 18r - 104 = 0

⇒ r² + 9r - 52 = 0

⇒ (r + 13)(r - 4) = 0

Hence, r = 4 {As the value of r can not be negative}

Therefore, the area of the circle C is π(4)² = 50.28 sq. cm. (Answer)

7 0
3 years ago
8-c is at most -15 how do i translate this into a sentence?
emmainna [20.7K]

The largest number that 8c could be is -15

3 0
3 years ago
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