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3 years ago

Emily and a friend bought two tickets to

Mathematics

1 answer:

serg [7]3 years ago

4 0

A)each friend payed $4 for the parking fee.
B)0.08%

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What are all the exact solutions of square root 2 cosx-1=0 for 0 less than or equal to x less than or equal to 2 pi ?Give your a

Lera25 [3.4K]

Answer: $x=\frac{\pi}{4}\ or\ \frac{7\pi}{4}$

Step-by-step explanation:

Given equation is

$\sqrt{2}\cos x-1=0$

solving this

$\sqrt{2}\cos x=1\\\cos x=\frac{1}{\sqrt{2}}$

There can be two solution because $0$

$\cos x=\cos \frac{\pi }{4}\ or\ \cos (2\pi -\frac{\pi}{4})\\$

so, $x=\frac{\pi}{4}\ or\ \frac{7\pi}{4}$

3 0

3 years ago

The graph shows the relationship between the distance a car is driven and the number of gallons of gasoline used. Identify the v

Zanzabum

Answer:

A. d = 25; the unit rate is 25 miles per gallon

Step-by-step explanation:

The point (1, d) on the graph represents (x, y), where,

x = gasoline used = 1 gallon

y = distance = d = 25 miles

That is, (1, d) represents when x = 1, y = 25.

Thus, (1, 25) is the unit rate which is 25miles per gallon.

8 0

3 years ago

Ariel travels 400 miles in 8 hours. What is her rate of change or rate?

Leviafan [203]

Hello there.

Ariel travels 400 miles in 8 hours. What is her rate of change or rate?

Rate of change is defined as
change in distance
change in time

400 ÷ 8 = 50

Answer: B) 50 miles per hour

5 0

4 years ago

Read 2 more answers

Solve for y in the proportion

maxonik [38]

Answer:

y = 1

Step-by-step explanation:

$\frac{y + 3}{16} = \frac{2}{8} \\ = > y + 3 = \frac{2 \times 16}{8} \\ = > y + 3 = 2 \times 2 \\ = > y + 3 = 4 \\ = > y = 4 - 3 \\ = > y = 1$

8 0

3 years ago

Select all that are equivalent to a^2/a^9 Assume a \= 0 1 1 DONE

Verdich [7]

0^2/0^9 = 0/0, therefore your answer is 1/1 considering that it is a fraction that is 100%, but if you divide 0 by 0, according to Keith’s theory you should have an endless number aka Infinity.

6 0

3 years ago