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Tresset [83]
3 years ago
5

What is the inverse of the function f(x) = 2x – 10?

Mathematics
1 answer:
noname [10]3 years ago
7 0

Answer:

The inverse f-1(x) = ( x + 10)/2.

Step-by-step explanation:

f(x) = 2x - 10

Find x in terms of f(x):

2x = f(x) + 10

x = (f(x) + 10))/ 2

Replace x by the inverse f-1(x) and f(x) by x:

f-1(x) = (x + 10)/2.

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Jack says that because kites do not have parallel sides, a square is not a kite. Explain his error in thinking.
PtichkaEL [24]

Answer:

Square is a kind of kite.

Step-by-step explanation:

Consider the provided information.

Kite is a flat shape with two pairs of sides and each pair is made of two adjacent sides that are equal in length.

Square has four equal sides and four equal angles of 90°

Square is a kind of kite because it has two pairs of equal adjacent side.

Hence, square is a kind of kite.

5 0
3 years ago
Factor this polynomial completely x2 + 3x – 18 A. (x-2)(x + 9) B. (x+3)(x-6) оо C. (x - 3)(x+6) D. (x - 3)(x-6)​
Umnica [9.8K]

Answer:

C. (x-3)(x+6)

Step-by-step explanation:

I think the equation meant x^2+3x-18?

Anyways, to factor these kinds of quadratic, keep into consideration:

ax^2+bx+c=(x+w)(x+v)

ONLY if:

w+v=b\\wv=c

Start off by finding factors of c, which in this case, -18:

±(1, 2, 3, 6, 9, 18)

If one of the numbers is negative then the other number must be positive.

Find which two factors will sum up to b, which in this case, is 3.

1+(-18)\neq 3\\2+(-9)\neq 3\\3+(-6)\neq 3\\6+(-3)=3\\9+(-2)\neq 3\\18+(-1)\neq 3\\

The only two factors that work are 6 and -3.

Replace them into the factored form:

(x+w)(x+v)\\(x+6)(x-3)\\(x-3)(x+6)

3 0
2 years ago
Read 2 more answers
I need help With this please
Ber [7]

the answer is b. 30 hope this helps

6 0
3 years ago
Please help I’m struggling bad bad please help no links
katovenus [111]

Answer: 1078m^2

Step-by-step explanation:

ok, so the surface area of a figure is the area of that entire thing so what we are going to do is find the area of every part of this , the area of each base is 17*19. the area of each of the other sides are 6*17 and 6*19.

7 0
3 years ago
Which ordered pairs are solutions to the inequality 4x + y>-6
Dafna1 [17]

Answer:

(-1,-1)(2,0)(4,-20)

Step-by-step explanation:

(-1,-1) = -5 › -6 √

(0,-9) = -9 › -6 ×

(2,0) = 8 › -6 √

(-3,6) = -6 › -6 ×

(4,20) = -4 › -6 √

3 0
3 years ago
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