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denis-greek [22]
3 years ago
12

Two spinners are spun 20 times. A sum of 7 is landed on 5 times. What is the experimental probability of spinning a sum of 7?

Mathematics
1 answer:
statuscvo [17]3 years ago
8 0
7/20 is the probability
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If f(x) = 6x - 4 and g(x) = 2x^3, find g(3) - f(4)
Korolek [52]

To solve the problem, simply plug in the value for x in both functions, as shown below:

f(4) = 6(4) - 4

--> f(3) = 24 - 4

---> f(3) = 20


g(3) = 2(3)^3

--> g(3) = 2 * (3^3)

---> g(3) = 2 * 27

----> g(3) = 54


g(3) - f(4) = 54 - 20, so the answer is 34.

7 0
4 years ago
4/-0.8 can anyone tell me
slavikrds [6]
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6 0
3 years ago
3. f(x) = – 2 x + 1
KATRIN_1 [288]

Answer:

The quadratic x2 − 5x + 6 factors as (x − 2)(x − 3). Hence the equation x2 − 5x + 6 = 0

has solutions x = 2 and x = 3.

Similarly we can factor the cubic x3 − 6x2 + 11x − 6 as (x − 1)(x − 2)(x − 3), which enables us to show that the solutions of x3 − 6x2 + 11x − 6 = 0 are x = 1, x = 2 or x = 3. In this module we will see how to arrive at this factorisation.

Polynomials in many respects behave like whole numbers or the integers. We can add, subtract and multiply two or more polynomials together to obtain another polynomial. Just as we can divide one whole number by another, producing a quotient and remainder, we can divide one polynomial by another and obtain a quotient and remainder, which are also polynomials.

A quadratic equation of the form ax2 + bx + c has either 0, 1 or 2 solutions, depending on whether the discriminant is negative, zero or positive. The number of solutions of the this equation assisted us in drawing the graph of the quadratic function y = ax2 + bx + c. Similarly, information about the roots of a polynomial equation enables us to give a rough sketch of the corresponding polynomial function.

As well as being intrinsically interesting objects, polynomials have important applications in the real world. One such application to error-correcting codes is discussed in the Appendix to this module.

8 0
2 years ago
Read 2 more answers
Please help me answer!​
MrRa [10]

Answer:

B

..................

6 0
3 years ago
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Please help to find the area of this trapezium
Taya2010 [7]

Answer:

The area of trapezoid is 20 square centimeters

Step-by-step explanation:

Let

x -----> the length of rectangle

y ----> the height of rectangle

h ----> height of trapezoid

Applying the Trapezoid Mid-segment Theorem we have that

x=\frac{1}{2}(AD+BC) ----> equation A

y=\frac{h}{2} ----> h=2y ----> equation B

Remember that

The area of rectangle is equal to

xy=10\ cm^2

The area of trapezoid is equal to

A=\frac{1}{2}(AD+BC)h -----> equation C

substitute equation A and equation B in equation C

A=(x)(2y)\\A=2xy

The area of trapezoid is two times the area of rectangle

therefore

The area of trapezoid is 20 square centimeters

8 0
4 years ago
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