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mars1129 [50]
3 years ago
14

The exact value of cos 13pi/8

Mathematics
2 answers:
mars1129 [50]3 years ago
5 0
5.10508806

hope this helped!
can u plz mark me as brainiest?

Lorico [155]3 years ago
5 0

Answer:

i think its sqrt((2+sqrt2)/4)

Step-by-step explanation:

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ASAP definition for unit rate
icang [17]
How much of something per 1 unit of something else.

Examples:

• 100 cars pass by in 2 hours. The unit rate is 50 cars per hour.
• You can paint 3 boards in half an hour. The unit rate is 6 boards per hour.
• 200 sausages were eaten by 50 people. The unit rate is 4 sausages per person.
• They need 5 m of thread to make 2 cm of cloth. The unit rate is 2.5 m per cm.
4 0
4 years ago
Read 2 more answers
The Gonzalez family drove from 10:38 am to 2:05 pm. How long did they drive?
den301095 [7]

Answer:

3 hours and 27 minutes

Step-by-step explanation:

2:05 pm = 14:05 hours

1 hour = 60 minutes

14:05 = 13 hours + 60 minutes + 5 minutes = 13 hours + 65 minutes

then:

 13h  65m

- 10h  38m

=  3h  27m

they drive:

3 hours and 27 minutes

8 0
4 years ago
"A gumball machine is in the shape of a sphere with a radius of 6 inches. A store manager wants to fill up the machine with mini
krek1111 [17]
So Volume (V) of a sphere is:
V =  \frac{4}{3} \pi {r}^{3}
so essentially we need to divide the machine's Volume (V) the gumball volume (v)
V =  \frac{4}{3} \pi {r}^{3}  = \frac{4}{3} \pi {(6)}^{3}  \\ V =  \frac{4}{3}(216) \pi  = 288\pi
v =  \frac{4}{3} \pi {( \frac{1}{3} )}^{3}  =  \frac{4}{3} \times  \frac{1}{27}  \pi  \\ v =  \frac{4}{81} \pi
now we divide V by v:
V/v =  \frac{288\pi}{ \frac{4\pi}{81} }  =  \frac{288}{1}  \times  \frac{81}{4}  = 5832
so b) 5,832 gumballs can fit in the machine

4 0
3 years ago
How to do 32=8 (p+3)
Andrew [12]
First divide 8 on both sides then your left with 4=p+3. then subtract three and you get 1=p
3 0
3 years ago
Solve for x: 3|2x - 2| + 6 = 18.
alukav5142 [94]

Answer:

answer: b) x = 3, x = -1

Step-by-step explanation:

3|2x - 2| + 6 = 18.

divid by 3 :

|2x - 2| + 2 = 6

add -2 :  |2x - 2|  = 4

2x-2=4 or 2x-2=-4

2x=6 or 2x=-2

x=3 or x=-1

4 0
3 years ago
Read 2 more answers
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