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Marat540 [252]
3 years ago
9

Evaluate p2 - r2 for p = 10, r = -4 and t = 5.

Mathematics
1 answer:
AlexFokin [52]3 years ago
4 0

Answer:

84

Step-by-step explanation:

p^2-r^2= 10^2-(-4)^2

100-16=84

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If sin(t) = 3/5 and t is in the 2nd quadrant, find cos(t).
NemiM [27]

Cosine is \frac{hypotenuse}{adjacent}.

Apply the equation:

sin(t) = \frac{3}{5} \\3^2 + b^2 = 5^2\\b^2 = 5^2 - 3^2\\\\\sqrt{b^2}  = \sqrt{5^2}- \sqrt{3^2}\\\\\\b = 5 - 3 \\\\b = 2

B is the adjacent side so

cosine is:

Cos(t) = 5/2

Have a great day,

And I hope this helps you!

5 0
2 years ago
Ok how are the kids doing in here in mathematics
-BARSIC- [3]

Answer:

They are doing OK some are getting answers and some are not like me. For some people don't even know what they're asking.

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3 years ago
Murat has 2/3 kg of rice that he wants to put into bags that contain 3/10 kg of rice each?
Bad White [126]

Answer:

Murat can fill 6/13 kg of rice

Step-by-step explanation:

because it has 2/3 kg of rice and 3/10 each and I added 6+2 and 3+10 hope it makes your day

8 0
2 years ago
Read 2 more answers
How many and what type of solutions does 7x^2−4x+3 have? 1 rational solution 2 rational solutions 2 irrational solutions 2 nonre
Gre4nikov [31]

Answer:

2 non real solutions.

Step-by-step explanation:

We need to use discriminant,

for ax²+bx+c=0

The discriminat is b²-4ac

If the discriminant is,

→ less than 0, then 0 real solutions

→ equal to 0, then 1 real solutions

→ more than 0, then 2 real solutions

Given that,

7x²−4x+3=0

a=7, b=-4, and c=3

→ (-4)²-4(7)(3)

→ 16-84

→ -68

You can see this is less than 0, then non real solutions. [2 nonreal solutions]

7 0
3 years ago
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How to find the volume of a cone with its base in algebra​
marin [14]

Answer:

V=pi r² h/3

Step-by-step explanation:

V=volume

R=radius

H=height

7 0
3 years ago
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