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rusak2 [61]
3 years ago
6

Triangle ABC is such that AB = 3cm , BC = 4cm , angle ABC = 120 and BAC = theta : Write down in terms of theta , and expression

for angle ACB ( why is this (60-theta) and not (120-theta)? Next question asks for using the sine rule (or otherwise) show that tan theta = 2sqrt3 /(5) A diagram would be pretty cool guys
Mathematics
1 answer:
lakkis [162]3 years ago
8 0
1)inside the triangule is 180º .There are 3 angules, one with 120º, theta and
angle ACB, lets call it x.

x + theta + 120 = 180
x + theta= 180-120
x + theta= 60
x= 60- theta
angle ACB= 60- theta
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Hemp help math math math
Masja [62]

Answer: 7234.56 cm

V = \frac{4}{3} π r³

V = \frac{4}{3} (3.14) (12)³

V = 7234.56 cm Answer...

Hope that helps...

6 0
2 years ago
Rlly need help on this ill give brainliest :)
Maksim231197 [3]

Answer:

3^15/5^16

Step-by-step explanation:

(3^3 x 3^6 x 5^-4) / (3^-6 x 5^12)

= (3^3 x 3^6 x 3^6) / (5^12 x 5^4)

= 3^15 / 5^16

4 0
2 years ago
what is the square root of 98 what is the square root of y to the 6th what is the square root of a to the 7th what is the square
Bogdan [553]
1. sqrt(98) = 7 sqrt(2)
2. sqrt(y^6) = y^3
3. sqrt(a^7) = a^7/2
4. sqrt(12x^3y^2) =  2xy sqrt(3x)
5. sqrt(36x^2y^4) = 6xy^2
6. sqrt(48ab^3) = 4b sqrt(3ab)
7. sqrt(10a^5b^2) =  a^2b sqrt(10a)
8. sqrt(20x^3y^10 =  2xy^5 sqrt(5x)
7 0
3 years ago
Gary’s is a small publishing company that publishes math books. The production costs include a one-time cost for editing the boo
sveta [45]
Y=20x -1500, y equals the prophet, x is the number of books, 20 is the money made after taking out the cost of production, 1500 is a cost that only occurs once.
5 0
3 years ago
University officials say that at least 70% of the voting student population supports a fee increase. If the 95% confidence inter
baherus [9]

Answer:

The interval estimate is above 70%, so infer that it will be supported.

Step-by-step explanation:

The evidence that 95% confidence interval estimating the proportion of students supporting the fee increase is [0.75, 0.85] supports university officials' claim that at least 70% of the voting student population supports a fee increase.

Therefore we can infer that a fee increase will be supported.

4 0
3 years ago
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