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Rom4ik [11]
2 years ago
12

A) Work out the value of 23 + 52

Mathematics
1 answer:
Elena L [17]2 years ago
3 0

Answer:

Step-by-step explanation :

a) 75

b) 39

C) 182

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To one-one functions g and h are defined as follows.
Andreyy89

Answer:

  • 9
  • (x-8)/3
  • -1

Step-by-step explanation:

The inverse function for a set of ordered pairs can be found by swapping the x- and y-coordinates in each pair.

  g^{-1}(-1)=9\qquad\text{from the $g(x)$ ordered pair $(9, -1)$}

__

The inverse of a function expressed algebraically can be found by swapping the x- and y-variables and solving for y.

  h^{-1}(x)\qquad\text{is found from }x=h(y)\\\\x=3y+8\\x-8=3y\\\\y=\dfrac{x-8}{3}\\\\\boxed{h^{-1}(x)=\dfrac{x-8}{3}}

A function of its own inverse returns the original value:

  \boxed{\left(h\circ h^{-1}\right)(-1)=-1}

6 0
3 years ago
If you go on a road trip of 270 miles in the mountains and 7/ 10 of the trip is downhill, how many miles of the trip are not dow
skelet666 [1.2K]

Answer:

81 miles

Step-by-step explanation:

From the question 7/10 of the trip has been said to be downhill. It therefore means that 3/10 is not downhill.

Miles = 270

Downhill = 7/10

Not downhill = 3/10

Now we have To calculate Miles that are not downhill (uphill)

But first I calculated for the number of downhill miles

270x7/10

Downhill = 189 miles

To get the number of not downhill miles

I subtracted 189 from the total number of miles on the question.

270 - 189

= 81 Miles.

Therefore 81 Miles of the trip are not downhill.

If you have anymore questions or need clarity please let me know on the comment section. Thank you and Good luck!

7 0
3 years ago
Read 2 more answers
"sports discount" has uniforms for 68$. They are offering a 20% discount on each uniform, and a 7 percent sales tax will be appl
charle [14.2K]

Answer:

58.208 times 8 equals 465.664 rounded down to 465.66

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Given rectangle QRST, find m​
Nimfa-mama [501]

90-40

=50(alternate angles are equal

6 0
2 years ago
A teacher driving to a conference in a school van records the number of gallons of gas used and the number of miles traveled,
melamori03 [73]

Answer:

The answer is 275 and 12

Step-by-step explanation:

I did it in school city 2021 and Im in Honors Math please make me brainliest

4 0
2 years ago
Read 2 more answers
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