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2 years ago

There are 450 students in my high school. 39 students are taking AP

Mathematics

1 answer:

Lelechka [254]2 years ago

7 0

Answer:

Chessebuger

Step-by-step explanation:

see the chesse burger is real good

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Sean is conducting an experiment with an isotope of a particular element that has a half life of 4 hours. He begins with a sampl

Alex Ar [27]

Answer:

/??

Step-by-step explanation:

5 0

2 years ago

One batch of walnut muffins use 1 1/3 cups of walnuts.How many cups of walnuts are needed to 3 3/4 batches of muffins

Ede4ka [16]

All you have to do is since one batch needs 1 1/3 cup of walnuts multiply 1 1/3 to 3 3/4 = 3 1/4 cups

5 0

2 years ago

Read 2 more answers

A square based brass plate in 4mm high and has a mass of 1.05kg. The density of the brass is 4.2g/cm3, calculate the length of t

Bezzdna [24]

Answer:

$Length = 25cm$

Step-by-step explanation:

Given

Brass Shape: Square

$Density = 4.2g/cm^3$

$Mass = 1.05kg$

$Height = 4mm$

Required

Determine the length of the plate

First, we need to calculate the Volume of the Brass using

$Density = \frac{Mass}{Volume}$

Make Volume the subject of formula

$Volume = \frac{Mass}{Density}$

Substitute 1.05kg for Mass and 4.2g/cm³ for Density

$Volume = \frac{1,05\ kg}{4.2\ g/cm^3}$

Convert 1.05 kg to grams

$Volume = \frac{1.05 * 1000\ kg}{4.2\ g/cm^3}$

$Volume = \frac{1050 \ kg}{4.2\ g/cm^3}$

$Volume = 250cm^3$

Next is to determine the Area of the brass;

$Volume = Height * Area$

Substitute 250cm³ for Volume and 4mm for Height

$250cm^3 = 4mm * Area$

Convert mm to cm

$250cm^3 = 4 * 0.1cm * Area$

$250cm^3 = 0.4cm * Area$

Divide both sides by 0.4cm

$\frac{250cm^3}{0.4cm} = \frac{0.4cm * Area}{0.4cm}$

$\frac{250cm^3}{0.4cm} =Area$

$625cm^2 = Area$

$Area = 625cm^2$

Lastly, we'll calculate the length of the brass

Since the brass is square based;

$Area = Length^2$

Substitute 625cm² for Area

$625cm^2 = Length^2$

Take square root of both sides

$\sqrt{625cm^2} = Length$

$25cm = Length$

$Length = 25cm$

<em>Hence, the length of the square brass is 25cm</em>

5 0

2 years ago

Juanita makes $42 an hour at work. She has to take time off work to purchase her dress, so each hour away from work costs her $4

NISA [10]

If this is a go math question you can look it up

6 0

2 years ago

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Jolyn, a golfer, claims that her drive distance is not equal to 222 meters, on average. Several of her friends do not believe he

Troyanec [42]

Answer:

0.29

Step-by-step explanation:

z-score is given by the formula:

z=(μ-M)/σ where

μ is the hypothesis drive distance, which is 222
M is the mean sample drive distance
σ is the standard deviation of the sample drive distance

Therefore

z=(222-218)/14≈0.29

3 0

2 years ago