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Katyanochek1 [597]
3 years ago
15

HELP PLEASE WILL GIVE BRAINLIST

Mathematics
1 answer:
rodikova [14]3 years ago
4 0

Answer:

Let R be the greater radius and r be the smaller radius

A) Area of the sidewalk = R^2 - r^2   - This can be the expression

B)  = 3.14

=(R^2-r^2)

=(11^2-9^2)

=(121-81)

=*40

That was the simplified expression

Answer = 3.14 * 40 = 125.6m^2

Step-by-step explanation:

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Geometry..............
Ivanshal [37]

Answer:

Probability of finding girls given that only English students attend the subject =33/59

Step-by-step explanation:

Given that during English lesson, there is no other lesson ongoing. The probability of getting girls in that class only will be equivalent to 33/59 since we expect a total of 59 students out of which 33 will be girls. Similarly, in a Maths class given that only Maths students attend the class, probability of having a girl is 29/61 since out of all students, only 29 prefer Maths and the total class attendance is 61

8 0
3 years ago
The Mary boat cruise line charges a non-refundable fee of $150 and a fee of $280 a day on the cruise ship. The Billy Boat cruise
White raven [17]
You would set it up like this: 150x + 280 = 255x The you just solve.
8 0
3 years ago
R
Shalnov [3]

Answer:

x = 54

y = 47.5

Step-by-step explanation:

If two lines p and q are parallel and line r is a transversal intersecting these lines at two different points,

(x + 56)° = (2x + 2)° [corresponding angles]

2x - x = 56 - 2

x = 54

Similarly, lines r and s are parallel lines and q is a transversal line intersecting these lines,

(y + 7)° + (3y - 17)°= 180° [Consecutive exterior angles]

4y - 10 = 180

4y = 190

y = 47.5

3 0
3 years ago
HELP ASAP!! (picture above)
lilavasa [31]
To calculate minimum value, do -b/2a to get the x-value, and plug it in to get the y-value: 

-6/8 = -3/4

4 *  (-\frac{3}{4} )^{2} + 6 (-\frac{3}{4} ) - 18 =  \frac{9}{4} -  \frac{9}{2} - 18 =  - \frac{81}{4}

So the minimum value of g(x) is -81/4

This shows that g(x) has a lesser minimum value than f(x)


5 0
3 years ago
If angle BAT and angle EAT form a linear pair and angle BAT is obtuse, then angle EAT is
mamaluj [8]
You need to make this easier to understand. <span />
5 0
4 years ago
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