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4 years ago

given the function f(x)=5(x+4)^3/2, which of the following represents its y-intercept? (1)40 (2)20 (3)4 (4)30

1 answer:

3 0

f(x)=5(x+4)^3/2, let y = f(x).

y =5(x+4)^3/2. The y intercept is value of y when x = 0

y intercept = 5(0+4)^3/2 = 5* 4^3.2 = 5*6 = 30. Use your calculator.

y intercept = 30

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The fraction 4/5 is equivalent to 0.8 and to 80%. How do I write 0.8 and 80% as unreduced fractions.

igor_vitrenko [27]

I assume it’s as simple as 8/10

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4 years ago

Read 2 more answers

A data set includes 106 body temperatures of healthy adult humans having a mean of 98.7degreesF and a standard deviation of 0.66

blondinia [14]

Answer:

The 99% confidence intervals are

(98.4346 , 98.7654)

C) This suggests that the mean body temperature could very possibly be 98.6degrees°F.

Step-by-step explanation:

Given data a data set includes 106 body temperatures of healthy adult humans having a mean of 98.7degreesF and a standard deviation of 0.66degreesF

sample size n = 106

Mean of the population ' μ' = 98.7degreesF

standard deviation of population 'σ' = 0.66degreesF

Mean of the sample x⁻ = 98.6degreesF

Level of significance ∝ = 0.99 0r 0.01

Confidence limits :-

The values $(x^{-} - 2.58\frac{S.D}{\sqrt{n} } ,x^{-} +2.58\frac{S.D}{\sqrt{n} } )$ are called 99% of confidence limits

For the mean of the Population corresponding to the given sample.

$(98.6 - 2.58\frac{0.66}{\sqrt{106} } ,98.6 +2.58\frac{0.66}{\sqrt{106} } )$

on calculation, we get

(98.6 - 0.1654,98.6 + 0.1654)

The 99% confidence intervals are

(98.4346 , 98.7654)

C) This suggests that the mean body temperature could very possibly be 98.6degrees°F.

3 0

3 years ago

Helppp pleaseee

Oliga [24]

B.28 Years Hope it help

7 0

3 years ago

Helpppppppppp me pleaseeeee

Vlad1618 [11]

Answer:

A = 16 13unit^2 + 9unit^2 = 5 √10 = 15.8 = 16

Step-by-step explanation:

For Pythagoras we square route

= x^2 = 13^13 + (one of the closer squares for x elimination)

x= 169 + 81 169 + 100 169 + 49 169+64 169 + 121

x = 250 or 269 or 218 or 233 or 290

x= 5√10 or 15.8 or √269 269 or √218 2.8 or √233 or 2.33 ( or √290 = ( √48+2) or 2.9

6 0

3 years ago

F (x) = 2x g(x) = 4x + 5 Find f (x) + 3g(x)

g100num [7]

Answer:

f(x) + 3g(x) = 14x + 15

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Distributive Property

Algebra I

Terms/Coefficients
Function Notation

Step-by-step explanation:

Step 1: Define

f(x) = 2x

g(x) = 4x + 5

Step 2: Find

Substitute in functions: 2x + 3(4x + 5)
[Distributive Property] Distribute 3: 2x + 12x + 15
Combine like terms: 14x + 15

8 0

3 years ago