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fenix001 [56]
3 years ago
7

Pls help on 1-3 ASAP

Mathematics
2 answers:
Vinil7 [7]3 years ago
6 0

Answer:

1: Lowest-77 Higest: 99 Center: 88 Spread: 22

Step-by-step explanation:

Ket [755]3 years ago
5 0

Answer:

1)

Lowest: 77

Spread: 77 through 99

Highest: 99

Center: 88

2)

Lowest: 24

Spread: 24 through 84

Highest: 84

Center: 52

Step-by-step explanation:

The spread is just the numbers you are counting to so like in number 1 it is 77 through 99, does that make sense? Hope this helps!

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Mr. Gardener invested $500,000. His annual interest was $40,000. What was the annual interest rate?
Mademuasel [1]

Answer: The annual interest rate r= 8%

Step-by-step explanation:

Given: The invested amount =  $500,000.

The annual interest = $40,000

The annual interest rate is given by :-

r=\frac{\text{interest}}{\text{invested amount}}\times100\\\\\Rightarrow\ r=\frac{40,000}{500,000}\times100\\\Rightarrow\ r=\frac{4}{50}\times100\\\\\Rightarrow\ r=8\%

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2 years ago
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The sum of a number and its reciprocal is 13/6. find the number
iris [78.8K]
Suppose the number is x, its reciprocal is 1/x
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2 years ago
Verify that -5, 1/2, and 3/4 are the zeroes of the cubic polynomial 4x^3+20x^2+2x-3. Also verify the relationship between the ze
Finger [1]

Solution:

we have been asked to verify that -5, 1/2, and 3/4 are the zeroes of the cubic polynomial 4x^3+20x^2+2x-3

To verify that whether the given values are zeros or not we will substitute the values in the given Polynomial, if it will returns zero, it mean that value is Zero of the polynomial. But if it return any thing other than zeros it mean that value is not the zero of the polynomial.

Let f(x)=4x^3+20x^2+2x-3\\\\\text{when x=-5}\\\\f(-5)=4(-5)^3+20(-5)^2+2(-5)-3=-13\\\\\text{when x=}\frac{1}{2}\\

f( \frac{1}{2} ) = 4 ( \frac{1}{2} )^3+20(\frac{1}{2})^2+2(\frac{1}{2})-3=\frac{7}{2}\\\\

\text{when x=}\frac{3}{4}\\\\

f( \frac{3}{4} ) = 4 ( \frac{3}{4} )^3+20(\frac{3}{4})^2+2(\frac{3}{4})-3=\frac{183}{16}\\

Hence -5, 1/2, and 3/4 are not the zeroes of the given Polynomial.

Since sum of roots=\frac{-b}{a}= \frac{-20}{4}=-5\\

But -5+\frac{1}{2}+\frac{3}{4}=  \frac{-15}{4}\neq-5

Hence we do not find any relation between the coefficients and zeros.

Anyway if the given values doesn't represents the zeros then those given values will not have any relation with the coefficients of the p[polynomial.

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