2 years ago

According to a recipe, a loaf of bread requires 500 grams

Mathematics

1 answer:

loris [4]2 years ago

4 0

Answer:

Step-by-step explanation:

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A recent survey concluded that the proportion of american teenagers who have a cell phone is 0.27. the true population proportio

Jet001 [13]

Answer:

The mean for the sampling distribution of the sample proportion is 0.29

The standard deviation for the sampling distribution of the sample proportion is 0.01435

Step-by-step explanation:

The mean for the sampling distribution of the sample proportion is always equal to the true population proportion, in this case; p = 0.29

The standard deviation for the sampling distribution of the sample proportion is calculated as;

$\sqrt{\frac{p(1-p)}{n} }$

Using the given values;

p = 0.29

1 - p = 0.71

n = 1000

The standard deviation becomes;

$\sqrt{\frac{(0.29)(1-0.29)}{1000} } \\$

The s.d becomes 0.01435

4 0

3 years ago

The lengths of the sides of a triangle are in the extended ratio 4 : 9 : 10. The perimeter of the triangle is 92 cm. What are th

Nookie1986 [14]

16, 36, 40

Set the problem up as 4x+9x+10x= 92

26x= 92

X= 4

Plug back in to get the lengths of the sides (shown above)

7 0

2 years ago

Angie bought a shirt that was priced at 16.50.She paid 18.82 at the counter . what is the tax rate. Step by step

erastovalidia [21]

Answer:

The price: 16.5

The total payment: 18.82

=> The amount of tax: 18.82-16.5 = 2.32

=> Tax rate = The amount of tax / The price = 2.32/16.5 = 0.14 = 14%

6 0

2 years ago

A piece of cloth is 12 yards in length. if 3/4 of the cloth is used for bedsheet, how many yards of the cloth will be left?

larisa [96]

Answer:

9 yards

Step-by-step explanation:

multiply the length of the cloth by the length used for bedsheet

$12*\frac{3}{4}\\9 yards$

3 0

2 years ago

What is the product?

xxMikexx [17]

Answer:

${ \tt{(5r - 4)( {r}^{2} - 6r + 4) }} \\ = { \tt{( {5r}^{3} - {30r}^{2} + 20r - 4 {r}^{2} + 24r - 16) }} \\ = { \tt{ {5r}^{3} - 34 {r}^{2} + 44r - 16 }}$

7 0

2 years ago

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