2 years ago

Which of the following formulas, when evaluated using rational values for the variables, will result in an irrational number?

Mathematics

1 answer:

gogolik [260]2 years ago

5 0

A. because pi is a irrational #

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Priya rode her bike 1250 feet. If her bike wheel has a diameter of 2.5 feet, how many times did her wheel make a full rotation?

Alex17521 [72]

Answer:

159 times

Step-by-step explanation:

<h3>Given</h3>

d = 2.5 ft
Distance = 1250 ft

Number of rotations

<h3>Solution</h3>

<u>Circumference of the wheel is the one full rotation:</u>

C = πd = 3.14*2.5 = 7.85 ft

<u>Number rotations:</u>

1250/7.85 = 159.2

<u>Correct option is</u> 159 times

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3 years ago

A ladder is placed against a wall of a building 20m above the ground. The foot of the ladder is 15m away from the bottom of the

olganol [36]

By the Pythagorean Theorem:

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L^2=400+225

L^2=625

L=25 m

4 0

2 years ago

How many solutions are there to the following system of equations?

sweet [91]

$4x-8y=0 \\
\underline{-3x+8y=-7} \\
4x-3x=0-7 \\
x=-7 \\ \\
4x-8y=0 \\
4 \times (-7)-8y=0 \\
-28-8y=0 \\
-8y=28 \\
y=\frac{28}{-8} \\
y=-\frac{7}{2} \\ \\
 \left \{ {{x=-7} \atop {y=-\frac{7}{2}}} \right.$

There is one solution to this system of equations. The answer is B.

6 0

3 years ago

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Find an equation of the line with the slope m= 3/2 that passes through the point (8,-3). Write the equation in the form Ax+By =

mr Goodwill [35]

Answer:

work is shown and pictured