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zaharov [31]
3 years ago
12

Please help with this

Mathematics
1 answer:
sergiy2304 [10]3 years ago
5 0

a. r + (-s) = r - s

b. r - (-s) = r + s

c. -r + (-s) = -r - s

d. -r - (-s) = -r + s

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Not too sure about this one
elena-s [515]

Answer:

see explanation

Step-by-step explanation:

let y = f(x), then

y = 11x - 1

Interchange x and y and solve for y

x = 11y - 1 ( add 1 to both sides )

x + 1 = 11y ( divide both sides by 11 )

y = \frac{x+1}{11}, hence

f^{-1}(x) = \frac{x+1}{11}

3 0
3 years ago
Brock exercises every day. The function E = 15m + 5 represents the number of sit-ups he can do in m minutes. After drinking a ne
adoni [48]

Answer:

S=45m+15

Step-by-step explanation:

we have

E------>the number of sit-ups

m---->  the time in minutes

S----> the number of sit-ups after drinking the sports drink

E=15m+5 ----> equation A

S=3E ----> equation B

substitute the equation A in the equation B

S=3(15m+5)

S=45m+15

7 0
3 years ago
A peeting zoo has 5 lambs 11 rabbits 4 goat and 4 piglets find the ratio of goat to the total number of animals.then explain its
Otrada [13]
Ratio is the number of something beside another number of something i.e. ( There are 2 boys and three girls so the Ratio would be 2:3) Therefore the answer would be 5:11:4:4. Yiou want the goats ratio of the total number of animals so we will add all animals EXcEPT the goat. 5+11+4 = 20 so the ratio would be 4:20
5 0
3 years ago
1 The rectangle below represents the base of a rectangular prism. The rectangle is 4 cm by 5 cm. The height of the rectangular p
Natalija [7]

Answer:

240 cm^3

Step-by-step explanation:

Volume of a rectangular prism = base area x height

the base is a rectangle, thus base area = width x length = 4 x 5 = 20 cm^2

20cm^2 x 12 = 240 cm^3

5 0
3 years ago
List intercepts for 4x^2+9y^2=36
polet [3.4K]
X intercept = (-3, 0) (3, 0)
y int = (-2,0) (2,0)
5 0
3 years ago
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