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sesenic [268]
3 years ago
13

Write the expression as the sine or cosine of an angle.

Mathematics
1 answer:
mart [117]3 years ago
3 0

Answer:

sine(pie/5+pie/2)

Step-by-step explanation:

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Gabe read a total of 21 books with his book club over 7 months. After belonging to the book club for 22 months, how many books w
cestrela7 [59]

Answer:

66

Step-by-step explanation:

6 0
3 years ago
A car traveled 330 miles during a 5½ hour period. If the speed at which the car traveled can be represented in the equation d=rt
Alina [70]

Answer:

The car was travelling at a speed of 60 miles per hour.

Step-by-step explanation:

Given:

Distance traveled = 330 miles

Time Period = 5 \frac12\ hr

we need to find the speed of the car .

Solution:

Time Period = 5 \frac12\ hr

Now we can say that;

\frac12\ hr =0.5\ hr

So Time period = 5+0.5 =5.5\ hr

Now we know that;

Distance traveled (d) is equal to Speed (r) multiplied by Time Period (t).

framing in equation form we get;

d=rt\\\\330 =r\times 5.5

Dividing both side by 5.5 we get;

\frac{330}{5.5}=\frac{5.5r}{5.5}\\\\r = 60\ mi/hr

Hence The car was travelling at a speed of 60 miles per hour.

6 0
4 years ago
Pls help (kinda easy)
3241004551 [841]

Answer:

f(x)=(2x+1)(2x-1).

Step-by-step explanation:

We want to convert the function into the form that let's us easily find the x-intercept, and it would be for the form (ax+b)(cx+d) because then we can find the x-intercept in the following manner:

(ax+b)(cx+d)=0

x=-b/a

x=-d/c

We factor our function f(x)=4x^2-1 and get

\boxed{f(x)=(2x+1)(2x-1)}

Now this form let's us easily find the x-intercepts:

x=-1/2

x=1/2

and so we pick the second choice: f(x)=(2x+1)(2x-1).

5 0
3 years ago
Read 2 more answers
Please help this is a finals test and I’m timed I’ll give points + brainalist (:
stepladder [879]
The answer is D i think
3 0
3 years ago
Mr. Wolboldt and Mrs. Wolboldt went to Bob Evans for lunch. Their bill for the food was $26.50. If they plan on leaving a 20% ti
Finger [1]

Answer:  31.80

Step-by-step explanation:

First you divide 26.50 by 0.20 to get 5.3 then you add that to the starting total and you get your answer which is

5 0
3 years ago
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