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8090 [49]
3 years ago
14

Both circle Q and circle R have a central angle measuring 110°. The area of circle Q's sector is 4π cm2, and the area of circle

R's sector is 9π cm2. The radius of circle Q is 7 cm. Which is the radius of circle R?
Mathematics
2 answers:
dmitriy555 [2]3 years ago
6 0
The answer is 10.5 :)
Kisachek [45]3 years ago
4 0
The answer will be 10.5cm
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tom bought five candy bars and paid a total of $6.75 including tax. if each candy bar cost $1.25,how much tax did tom pay?
aleksklad [387]

Answer: He paid 0.50 cents in tax.

Step-by-step explanation:

4 0
3 years ago
Let f(x)=x-3 and g(x)= x^2-x. Find and simplify the expression. (f+g)(2)
ValentinkaMS [17]

Answer:

<h2>(f+g)(2) = 1</h2>

Step-by-step explanation:

Given :

f(x) = x − 3

g(x) = x² − x

Note : (f+g)(x) = f(x) + g(x)

then

(f+g)(2) = f(2) + g(2)

           = (2 - 3) + (2² - 2)

           = -1  +  2

           = 1

another method:

(f+g)(x) = f(x) + g(x) =  x − 3 + x² − x = x² - 3

then

(f+g)(2) = 2² - 3 = 4 - 3 = 1

8 0
3 years ago
The parent function of the function g(x) = (x – h)2 + k is f(x) = x2. The vertex of the function g(x) is located at (9, –8). Wha
Yanka [14]
Given:

Parent function:

g(x) = (x-h)^2 + k
f(x) = x^2

The vertex of the function g(x) is at (9, -8)

The values of h and k is the value of x and y in the vertex's coordinates which are 9 and -8, respectively

V (h, k)

h = 9
k = -8

g(x) = (x-9)^2 - 8
4 0
3 years ago
Work out the equation of the line which passes through the point (-1, 2) and is paralell to the line y = x + 4
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Step-by-step explanation:

gradient=1

gradient of parallel lines is equal.

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complete the rest

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AysviL [449]
1) y= -4x+c

2) y= 3x+c replace x and y to find c , 5=3(2)+c
C= -1
Y=3x-1

3) find slope first m=y2-y1/x2-x1 = 0-(-1)/-2-1 = 1/-3 and now you have y= -1/3x+c to find c just replace any of the given points , 0= -1/3(-2)+c
C= -2/3 and so y= -1/3x-2/3

4) DO THE SAME STEP AS NUMBER 3 and enjoy!
3 0
2 years ago
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