2 years ago

Find the area of this rectangle 13cm 8cm

Mathematics

1 answer:

castortr0y [4]2 years ago

8 0

Answer:

104 cm squared

Step-by-step explanation:

none.

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Suppose the true proportion of voters in the county who support a restaurant tax is 0.54. Consider the sampling distribution for

Eva8 [605]

Answer:

The correct answer is:

(a) 0.54

(b) 0.0385

Step-by-step explanation:

Given:

Restaurant tax,

p = 0.54

Sample size,

n = 168

Now,

(a)

The mean will be:

⇒ μ $\hat{p}= p$

$=0.54$

(b)

The standard error will be:

$\sigma \hat{p}$ = $\sqrt{[\frac{p(1-p)}{n} ]}$

= $\sqrt{[\frac{(0.54\times 0.46)}{168} ]}$

= $\sqrt{[\frac{(0.2484)}{168} ]}$

= $0.0385$

6 0

2 years ago

120 to 52 what % decrease

noname [10]

The formula is percent= part/whole so it would be 52/120 which is .43333333333 or 43%

3 0

3 years ago

15. The cost of beverages in a vending machine is shown.

Alja [10]

Answer:

I can't understand what you have written and what to find

5 0

2 years ago

Please help me look at the attached picture

Lady bird [3.3K]

Answer:

Q(-10) = 299

Step-by-step explanation:

$Q(x) = 3x^{2} - 1$ $Q(-10) = 3(-10)^{2} - 1$

$Q(-10) = 3(100) - 1$ (-10 to the second power is 100 (negative times a negative equals a positive)

$Q(-10) = 300 - 1$ 3 times 100 equal 300

$Q(-10) = 299$

5 0

3 years ago

Find all the real zeros of f(x)=3x^3-9x^2+3x-9 Can someone help me please

vaieri [72.5K]

Answer:

x=0,3

Step-by-step explanation:

start by dividing every term by 3

x^3-3x^2+x-3

group into 2 terms

(x^3-3x^2)+(x-3)

simplify as much as you can

x^2(x-3)+(x-3)

combine terms

(x^2)(x-3)

x=3, 0

4 0

3 years ago