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3 years ago

Part B Can image 2 be the reflected figure? Explain your answer.

Mathematics

1 answer:

Anastaziya [24]3 years ago

4 0

Answer:

Yes it can be be the reflected figure

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Find out the Range coefficient of the range

Alex777 [14]

Answer:

0.4494

Step-by-step explanation:

Given :

marks number of students

20-29 8

30-39 12

40-49 20

50-59 7

60-69 3

The range Coefficient is obtained thus :

Range Coefficient = (Xm - Xl) / (Xm + Xl)

Where ;

Xm = Mid value of highest class = (60+69)/2 = 64.5

Xl = Mid value of lowest class = (20+29)/2 = 24.5

Range Coefficient = (64.5 - 24.5) / (64.5 + 24.5)

Range Coefficient = 40 / 89 = 0.4494

7 0

2 years ago

A men earns $62 per week. how many will he earn if he works a full year 52weeks

Sever21 [200]

62$ (earns of 1 week) multiplied with 52 weeks (how often he earns the 62$) is 3224

5 0

3 years ago

Read 2 more answers

Find the area of the square

butalik [34]

Answer:

13 units^2

Step-by-step explanation:

one side of the square =

$AD^{2} = 2^{2} +3^{2}$

$AD^{2} =13$

$AD = \sqrt{13}$

So area of square = Length * Length

= $\sqrt{13}$ *

= 13

8 0

2 years ago

Read 2 more answers

What is the x-intercept of y=40x+70

AysviL [449]

At th x-intercept y=o

∴40x + 70 = 0
40x = -70
x = -70/40
x = -1.75

x intercepr = (-1.75,0)

8 0

3 years ago

If the angle of elevation of the sun is 61.7° when a building casts a shadow of 56.5 feet, what is the height of the building ro

maksim [4K]

SOLUTION

Let us use a simple diagram to interprete the question

In the diagram above, the dark stuff below represents the shadow and the rectangular bar represents the building. I have labelled the height of the building as h.

So we will use the right-angled triangle formed to find h

As we can see h represents the opposite side and 56.5 feet represents the adjacent side of the right-angle triangle. So we will use TOA

$\text{TOA tan }\theta=\frac{opposite}{\text{adjacent}}$

So we have

$\begin{gathered} \text{ tan }\theta=\frac{opposite}{\text{adjacent}} \\ \text{ tan }61.7\degree=\frac{h}{56.5} \\ 1.8572015=\frac{h}{56.5} \\ \text{cross multiplying, we have } \\ h=1.8572015\times56.5 \\ h=104.931887 \end{gathered}$

Hence the answer is 104.9 feet to the nearest tenth

4 0

10 months ago