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3 years ago

Express 2 times square root 5 as an entire radical

Mathematics

1 answer:

Diano4ka-milaya [45]3 years ago

7 0

2= √4

2×√5 = (√5 × √4)= √20

Answer: √20

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The value of a rare painting has increased each year since it was found at a garage sale. The value of the painting is modeled b

solmaris [256]

799 represents the initial value of the painting

The painting will be worth $926 after 5 years to the nearest dollar

Step-by-step explanation:

The form of the exponential function is $f(x)=a(b)^{x}$ , where

a is the initial value ⇒ (at x = 0)
b is the growth/decay factor ⇒ (rate of change)
If b > 1, then the function is growth ⇒ (increasing)
If 0 < b < 1, then the function is decay ⇒ (decreasing)

The value of a rare painting has increased each year since it was

found at a garage sale

The value of the painting is modeled by the function $f(x)=799(1.03)^{x}$

We need to know what 799 represents and what the painting will

be worth after 5 years

∵ $f(x)=799(1.03)^{x}$

∵ The form of the function is $f(x)=a(b)^{x}$

- By comparing the two forms

∴ a = 799 and b = 1.03

∵ a is the initial value at x = 0

∴ 799 represents the initial value of the painting

∵ x represents the number of years

∴ x = 5

- Substitute the value of x in the function by 5

∵ $f(5)=799(1.03)^{5}$

∴ f(x) = 926.26

∴ The painting will be worth $926 after 5 years to the nearest dollar

799 represents the initial value of the painting

The painting will be worth $926 after 5 years to the nearest dollar

Learn more:

You can learn more about the functions in brainly.com/question/10382470

#LearnwithBrainly

6 0

3 years ago

The manager of a grocery store estimates that 74% of customers will make a purchase.

pishuonlain [190]

Answer:

A : Per 100 people, cashier should expect 26 customer until he finds a costumer that makes a purchase.

B: The probability is 1/4

Step-by-step explanation:

The estimated chance of a customer making a purchase = 74%

So, if a TOTAL of 100 people visit the grocery store on any random day,

then 74 % of customers

= 74% of 100

= 74 people will make purchases.

⇒ Out of total 100 people visiting, 74 people will make a purchase.

So, the number of people NOT making a purchase = 100 - 74 = 26

⇒ Out of total 100 people visiting, 26 people will NOT make a purchase.

Also, 26 = 26% of 100

Part A :

So, in order to make a purchase, cashier should expect 26% of customers because the percentage of NOT purchasing is 26%.

Hence, per 100 people, cashier should expect 26 customer until he finds a costumer that makes a purchase.

Part B :

The percentage of customer making a purchase = 74%

The percentage of people NOT making a purchase = 26%

So, for every 3 customer making a purchase there is a 1 person NOT making a purchase.

So, the probability is 1/4

8 0

3 years ago

4.<br> What is the proportional relationship represented by this table?

andrew11 [14]

I’m pretty sure it’s 4:5

3 0

3 years ago

Read 2 more answers

Suppose Madison is traveling due west for 0.5 miles and then due south for 1.2 miles.

sweet [91]

Answer:

b) 1.3 units

b) 22.61° East of North

Step-by-step explanation:

$|\vec{AB}|=\sqrt{0.5^2+1.2^2}\\\Rightarrow |\vec{AB}|=\sqrt{0.25+1.44}\\\Rightarrow |\vec{AB}|=\sqrt{1.69}\\\Rightarrow |\vec{AB}|=1.3$

$|\vec{AB}|=1.3\ units$

Magnitude of vector AB is 1.3 units

$tan\theta=\frac{0.5}{1.2}\\\Rightarrow \theta=tan^{-1}\frac{0.5}{1.2}\\\Rightarrow \theta=22.61^{\circ}$

The direction of vector AB is 22.61° East of North

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3 years ago

The graph of Y = f(x) is graphed below. What is the end behavior of f(x)?

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4 years ago