Answer:

Answer:

Picture 1:

Area of cemicircle 2 π = 6.28 sq.m (approximately)

Total area of figure = 24+6.28= 30.28 sq.m (approximately)

Picture 2:

area of rectangle = 256 sq.m

Area of triangle = 32 sq.m

Total area of figure = 288 sq.m

Picture 3:

Area of top rectangle = 2 sq ft

Area of bottom rectangle = 15 sq ft

Total area of figure = 17 sq ft

Picture 4:

Area of rectangle = 28 sq ft

Area of triangle = 6 sq ft

Area of shaded region = 22 sq ft

Identify the equation that correctly shows the given relationship.

H= -16t^2+16t+192 When will the ball hit the ground?

After losing 3 baseball cards, Peter gave half of his remaining cards to Bobby. If Peter gave Bobby 9 baseball cards, how many cards did Peter start with?Linear equation: 12(x - 3) = 9

In the past, 21% of all homes with a stay-at-home parent, the father is the stay-at-home parent. An independent research firm has been charged with conducting a sample survey to obtain more current information. (a) What sample size is needed if the research firm's goal is to estimate the current proportion of homes with a stay-at-home parent in which the father is the stay-at-home parent with a margin of error of 0.09? Use a 95% confidence level. (Round your answer up to the nearest whole number.)

Wai recorded the length of each string needed for a knitting project. What is the total length of the string needed?

H= -16t^2+16t+192 When will the ball hit the ground?

After losing 3 baseball cards, Peter gave half of his remaining cards to Bobby. If Peter gave Bobby 9 baseball cards, how many cards did Peter start with?Linear equation: 12(x - 3) = 9

In the past, 21% of all homes with a stay-at-home parent, the father is the stay-at-home parent. An independent research firm has been charged with conducting a sample survey to obtain more current information. (a) What sample size is needed if the research firm's goal is to estimate the current proportion of homes with a stay-at-home parent in which the father is the stay-at-home parent with a margin of error of 0.09? Use a 95% confidence level. (Round your answer up to the nearest whole number.)

Wai recorded the length of each string needed for a knitting project. What is the total length of the string needed?

**Answer:**

32 miles

**Step-by-step explanation:**

32 miles is equal to 51.499008 Kilometers

12.7 kilometers is equal to 7.891414 miles

**Answer:V = 72.1 cm³ - 50.0 cm³ = 22.1 cm³**

**D = mV=99.7g22.1cm³ = 4.51 g/cm³**

**Step-by-step explanation:**

d = mV

m = d×V

V = md

DENSITY

Density is defined as mass per unit volume.

d = mV

Example:

A brick of salt measuring 10.0 cm x 10.0 cm x 2.00 cm has a mass of 433 g. What is its density?

Step 1: Calculate the volume

V = lwh = 10.0 cm × 10.0 cm × 2.00 cm = 200 cm³

Step 2: Calculate the density

d = mV = 433g200cm³ = 2.16 g/cm³

MASS

d = mV

We can rearrange this to get the expression for the mass.

m = d×V

Example:

If 500 mL of a liquid has a density of 1.11 g/mL, what is its mass?

m = d×V = 500 mL × 1.11g1mL = 555 g

VOLUME

d = mV

We can rearrange this to get the expression for the volume.

V = md

Example:

What is the volume of a bar of gold that has a mass of 14.83 kg. The density of gold is 19.32 g/cm³.

Step 1: Convert kilograms to grams.

14.83 kg × 1000g1kg = 14 830 g

Step 2: Calculate the volume.

V = md = 14 830 g × 1cm³19.32g = 767.6 cm³

12.5%

15%

20%

The **percent error** matching with its scenario :

1) 15%

2)20%

3)10%

4)12.5%

Here, from the given information we get:

the percent **error** are:

Leo = (11.5-10)/10 = 0.15

Candice = (13.2-12)/ 12 =0.1

Josie = (24-20)/20 = 0.2

Lenny = (18-16)/16 = 0.125

Now, we have,

For **percentage**, multiply each number by 100;

Leo = 15%

Candice = 10%

Josie = 20%

Lenny = 12.5%

To learn more on **percentage** click:

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**Answer:**

1) 15%

2)20%

3)10%

4)12.5%

The **height **of the **television **set would be 21.6 inches to the nearest inch.

If ABC is a **triangle **with AC as the **hypotenuse **and angle B with 90 degrees then we have:

where |AB| = length of** line segment** AB. (AB and BC are the rest of the two sides of that triangle ABC, AC being the **hypotenuse**).

We have been given that the **television **set is 36 inches wide and has a **diagonal **length of 42 inches.

Let b represent the **height **of the television set.

We will use the **Pythagorean theorem**;

36² + b² = 42²

1296 + b² = 1764

-1296. -1296

b² = 468

√ b² =√ 468

b = height

b = 21.6 **inches**

Therefore, the **height **of the television set would be 21.6 inches to the **nearest **inch.

Learn more about **Pythagoras' theorem **here:

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Pythagorean theorem.

36² + b² = 42²

1296 + b² = 1764

-1296. -1296

b² = 468

[square root] b² = [square root] 468

b= height =21.6 inches

36² + b² = 42²

1296 + b² = 1764

-1296. -1296

b² = 468

[square root] b² = [square root] 468

b= height =21.6 inches

100cubed is 1,00,000

**Answer:**

5.38

**Step-by-step explanation:**