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puteri [66]
3 years ago
9

90 POINTS WILL GIVE BRAINLIEST for which value of theta is cot theta equal to cos theta

Mathematics
2 answers:
velikii [3]3 years ago
8 0

Answer:

Step-by-step explanation:

cot \theta = cos \theta\\ \frac {cos \theta}{sin \theta} = cos \theta

An easy solution is if cos \theta = 0, or \theta = \frac \pi 2, plus or minus any number of half circles.

Angelina_Jolie [31]3 years ago
3 0

Answer:

...so cos t = cot t can only happen when cos t is 0 or sin t is 1. (But sin t = 1 only happens when cos t = 0, so cos t = 0 is enough.)  

arccos(0) is pi/2, plus or minus any multiple of pi.

Step-by-step explanation:

 

cotθ = cosθ  

cosθ/sinθ = cosθ  

sinθ = 1  

θ = π/2

pi also = to 3.14 etc.

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A pack of 6 batteries of the same type costs £2.79. By caculating the price, per battery, determine if this is better value. You
Fittoniya [83]

Answer:

£0.465. It is a better value.

Step-by-step explanation:

If a pack of 6 batteries costs £2.79, price of a battery can be calculated as shown;

6batteries = £2.79

1 battery = x

x = cost of a battery

6x = £2.79

x = £2.79/6

x = £0.465

Price per battery will be £0.465. This price is a better value since the price is lesser than the cost of the 6batteries (£2.79) in a pack.

6 0
3 years ago
3x−5(x−6)=2(10−x)<br> What does x equal?
quester [9]

Answer:

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Jared and Casey splurged on a special dinner for their anniversary. Their dinner cost $262.57, and the local sales tax is 4%. If
Maru [420]

Answer:

325.58

Step-by-step explanation:

so im not good at explaining but JUST their DINNER costed $262.57. so you also have to ADD TAX because everything has tax so to find the 4% sale tax you need to set up the equation 262.57 x .04 (which is 4%). you will get 10.50 if you round. now you need to ADD TIP which is 20%. so to find that you need to do 262.57 x .20 (which is 20%). you will get 52.51. so now take BOTH 52.51 and 10.50 and ADD them. when you get this you also add it to the 262.57 and it gets you to 325.58

3 0
2 years ago
NEED HELP FAST! WILL GIVE POINTS AND BRAINIEST!!
icang [17]
W=15 no

W= 21 no

W= 1 Yes

If im right the question is just asking which variable is less than 15. 
so the only variable that is less than 15 is 1.
7 0
3 years ago
Read 2 more answers
#3
Lady_Fox [76]
#3 answer: 42

3x7= 21
21x2=42

#4 answer:140

5x7=35
2x2=4
4x35=140

4 0
3 years ago
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