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laila [671]
3 years ago
14

If f(x)=3x^5-2x^3+1, then f(-1)=?

Mathematics
2 answers:
Sliva [168]3 years ago
8 0

Answer:

f(-1) =0

Step-by-step explanation:

f(x)=3x^5-2x^3+1

Let x = -1

f(-1) = 3(-1)^5 -2(-1)^3 +1

      = 3(-1) -2(-1)+1

        =-3 +2+1

        =0

Ksivusya [100]3 years ago
4 0

Answer:

f(-1)=0

Step-by-step explanation:

f(x)=3x^5-2x^3+1

well, all you have to do is to replace x with -1.

f(-1)=3·(-1)^5-2·(-1)^3+1

f(-1)=3·(-1)-2·(-1)+1

f(-1)=-3+2+1

f(-1)=-3+3=0

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Based on a poll, 40% of adults believe in reincarnation. Assume that 8 adults are randomly selected, and find the indicated prob
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Answer:

The probability under the given conditions is found:

P(7) = 0.079

Step-by-step explanation:

Let x be the number of adults who believe in reincarnation.

Adults randomly selected = 8

percentage of adult believe in reincarnation = 40% = 0.4

x follows binomial distribution:

P(x) =  \left(\begin{array}{ccc}n\\x\end{array}\right) (p)^x(1-p)^{n-x}

where

n= total people random people selected = 8,

x = selected for the part = 7,

p = probability given = 0.4

P(7) = \left(\begin{array}{ccc}8\\7\end{array}\right) (0.4)^7(1-0.4)^{8-7}

P(7)= (8)(0.0164)(0.6)

P(7) = 0.07872

Rounding off to 3 decimal positions

P(7) = 0.079

8 0
3 years ago
Suppose a car averages 5.7 km per liter of gasoline. How many kilometers would the car be able to travel with 84 liters
dmitriy555 [2]
Use cross multiply method.Hence answer should be 478.8km in 84 liters of gasoline
5 0
3 years ago
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I want to pour a concrete slab in my backyard with an area of 370 ft2 to put a basketball goal. If the length of the slab is 23
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6w^2-23w-370
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(W-10) pick this one
+10
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or
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A) 10
B) 10
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3 years ago
Elena bought 8 tokens for $4.40. At this rate how many tokens could she buy with $6.05
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A. The ratio of the number of boys
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6 0
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