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3 years ago

The spinner is divided into 10 equal sections.

Mathematics

2 answers:

WITCHER [35]3 years ago

7 0

Answer:

spinning a 4 or 5, spinning a number less than 3, spinning a number greater than 8

Step-by-step explanation:

The spinner has 10 spaces, if we took a 4/5 (2) and made it into a fraction (2/10) then simplified is (1/50---Less than 3, so that means not 3 itself either, so a 1 or a 2, so (2/10), then simplify it, (1/5)--- Greater than 8, so not 8 itself, so 9 or a 10 (2/10) then simplified, (1/5)

Vikki [24]3 years ago

4 0

Answer:

A, B and D

Step-by-step explanation:

Total numbers on spinner=10

We have to find the event that has theoretical probability of exactly 1/5.

A.Spinning a number less than 3

Number less than 3 = 1 and 2

Favorable cases=2

Probability,P(E)= $\frac{favorable\;cases}{total\;number\;of\;cases}=\frac{2}{10}=\frac{1}{5}$

Hence,It is true.

B.Spinning a 4 or 5

Favorable cases=2

Probability ,P(E)= $\frac{2}{10}=\frac{1}{5}$

Hence,It is true.

C.Spinning odd number

favorable cases=1,3,5,7,9=5

Probability,= $\frac{5}{10}=\frac{1}{2}$

D.Spinning a number greater than 8

Number greater than 8=9 and 10

Favorable cases=2

Probability ,P(E)= $\frac{2}{10}=\frac{1}{5}$

Hence,It is true.

E.Spinning a number less than 8

Number less than 8=7

Probability,P(E)= $\frac{7}{10}$

Option A, B and D are true.

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3 years ago

Write a polynomial function f of least degree that has a leading coefficient of 1 and the given zeros -4,-2,5. write the functio

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Answer:

Step-by-step explanation:

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No we multiply in the final factor of (x - 5):

$(x^2+6x+8)(x-5)=x^3+6x^2+8x-5x^2-30x-40$ which simplifies to

$f(x)=x^3+x^2-22x-40$

If you are aware of the method for factoring higher degree polymomials, which is to use the Rational Root Theorem and synthetic division, you will see that this factors to x = -4, -2, 5. If you know how to use your calculator, you will find the same zeros in your solving polynomials function in your apps.

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