All categories

2 years ago

If in two circles, arcs of the same length subtend angles 60° and 75° at the centre, find the ratio of their radii.

Mathematics

2 answers:

ioda2 years ago

7 0

$\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}$

Hope this helps

Westkost [7]2 years ago

3 0

➳ ye lo isse jyada clear answer nahi de sakti

You might be interested in

If you place a 45-foot ladder against the top of a 36-foot building, how many feet will the bottom of the ladder be from the bot

ad-work [718]

Do you mean the top of the ladder and the top of the building? If so, it would be 9 feet

5 0

3 years ago

Adult male heights are normally distributed with a mean of 70 inches and a standard deviation of 3 inches. The average basketbal

sweet-ann [11.9K]

Answer: First Option is correct.

Step-by-step explanation:

Since we have given that

Mean $(\mu)$ = 70 inches

Standard deviation $(\sigma)$ = 3 inches

Average basket ball player $(\bar{X})$ = 79 inches

Since it is normally distributed assume with 5% significance .

So, it becomes,

$Z>\frac{\bar{X}-\mu}{\sigma}\\\\Z>\frac{79-70}{3}\\\\Z>\frac{9}{3}\\\\Z>3\\\\\therefore\ P(Z>3)=1-0.9987=0.0013$

At 0.05 level of significance , 0.0013 = 0.13% of the adult male population is taller than the average basketball player .

Hence, First Option is correct.

5 0

2 years ago

Read 2 more answers

3x + 5y = 7 How to solve it

Lubov Fominskaja [6]

Answer:

x=1 and y=4/5

Step-by-step explanation:

Given system of equations

3x+5y=7

5x+10y=13

Multiply first equation by 2

2(3x+5y)=2(7)

6x+10y=14

Eliminate y-variable to get "x"

6x+10y=14

- 5x+10y=13

x = 1

Substitute x=1 into either equation and find "y"

3x+5y=7

3(1)+5y=7

3+5y=7

5y=4

y=4/5

Therefore, x=1 and y=4/5

6 0

2 years ago

What equation models the data in the table if d = number of days and c = cost?

Lera25 [3.4K]

C = 11*(2*d) Try it and see that it fits every sample you have. Again this can be simplified to
C = 22 * d

6 0

3 years ago

suppose sin(A)=2/5. Use the trig identity sin^2(A)+cos^2(A)=1 to find cos(A) in quadrant 1. Round to ten-thousandth.

shutvik [7]

Answer:

about0.9165

Step-by-step explanation:

3 0

2 years ago