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Rzqust [24]
3 years ago
15

Chelsea needs to take a taxi home and lives 7 miles away. The taxi company charges $4 plus $1.50 per mile. How much will she pay

?
Question 3 options:

$29.50


$28.00


$14.50


$10.50
Mathematics
2 answers:
Artist 52 [7]3 years ago
4 0
Your answer is C. Good luck! :)
Andreas93 [3]3 years ago
3 0
Y = 1.50x + 4......x = 7
y = 1.50(7) + 4
y = 10.50 + 4
y = 14.50 <===
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melamori03 [73]

Answer

8 is not greater than 10

Step-by-step explanation:

2x>10

2(4)>10

8<10

x=4 can not be the solution to this equation because 8 is less than 10

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7 0
3 years ago
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Solve the Law of Cosine: c^2 = a^2+ b^2 - 2abcosC for cos C.
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Answer:

The Law of Cosine :  cos C = \frac{a^{2}+ b^{2}-c^{2}}{2ab}

Step-by-step explanation:

See the figure to understand the proof :

Let A Triangle ABC with sides a,b,c,

Draw a perpendicular on base AC of height H meet at point D

Divide base length b as AD = x -b   and    CD = x

By Pythagoras Theorem

In Triangle BDC             And     In Triangle BDA

a² = h² + x²     (  1  )                        c² = h² + (x-b)²

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From above eq 1 and 2

c² = (a² - x²) + x² + b² - 2xb

or, c² = a² + b² - 2xb                    .....(3)

Again in ΔBDC

cos C = \frac{BD}{BC}

Or, cos C = \frac{x}{a}

∴ x= a cos C

Now put ht value of x in eq 3

I.e, c² = a² + b² - 2ab cos C

Hence , cos C = \frac{a^{2}+ b^{2}-c^{2}}{2ab}      Proved   Answer

6 0
2 years ago
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Using proportions, the value of x that makes the triangle similar is of x = 14.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

In this problem, we want the triangles to be similar, hence the lengths of it's sides follow the proportion given next:

\frac{6}{12} = \frac{7}{x}

Applying cross multiplication:

6x = 12 x 7

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The value of x that makes the triangle similar is of x = 14.

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

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1 year ago
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swat32

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