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Tems11 [23]
3 years ago
8

Which equation represents a proportional relationship?

Mathematics
1 answer:
astra-53 [7]3 years ago
6 0
You know that two variables of an equation are related through direct proportionality when there is a constant value for their ratios. In equation form, a direct proportionality relationship is written as:

y = kx
where k can be any number

<em>Therefore, the answer is B</em>. In this case, k = 15.
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Can someone please help me with this ​
Readme [11.4K]

Answer:

7) 28.8 in

8) 80.6 mm

9) 68.3 cm

(All answers to the nearest tenth)

Step-by-step explanation:

7) The traingle is a right-angled triangle since the 4 angles of a rectangle are right angles.

Applying Pythagoras' Theorem,

x²= 16² +24²

x²= 832

x= √832

x= 28.8 in (nearest tenth)

8) Applying Pythagoras' Theorem,

x² +40²= 90²

x²= 8100 -1600

x²= 6500

x= 80.6 mm (nearest tenth)

9) See the attached picture for better understanding.

1st picture shows the simplified diagram of the question, indicating where line x lies in the rectangular prism.

Now, if we cut the prism into half diagonally so that we obtain 2 equal triangular prism, we would obtain 2 prisms that look like the one drawn in picture 2.

Now zoom in to the blue face of the prism, we would get a triangle as shown in picture 3.

Let's find the value of y.

Applying Pythagoras' Theorem,

y²= 40² +54²

y²= 4516

y= √4516

Look at picture 2 again at focus at the pink shaded triangle. It has been re-drawn in picture 4.

Now we know that y= √4516.

Applying Pythagoras' Theorem,

x²= (√4515)² +12²

x²= 4660

x= √4660

x= 68.3 cm (nearest tenth)

3 0
2 years ago
Describe and give an example of a rational and irrational number, plot points on a number line, simplify expressions and estimat
sergij07 [2.7K]

Answer:

Some of the top causes of poverty around the world :

Inadequate access to clean water and nutritious food.

Little or no access to livelihoods or jobs.

Conflict.

Inequality.

Poor education.

Climate change.

Lack of infrastructure.

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Step-by-step explanation:

i hope it help you

5 0
3 years ago
What do I put in the boxes
padilas [110]

Answer:

stylo fabric customer care 9903160322##8944928267

4 0
2 years ago
1. Is the square root of 2 between 1.3 and 1.4? How do you know?
VikaD [51]

Answer:

Step-by-step explanation:

1st . 1.3^2= 1.69

1.4^2= 1.96

It's not bettween 1.3 & 1.4

2. 1.4^2=1.96

1.5^2= 2.25

it's betteen 1.4 & 1.5

3 . 1.4 & 1.5 so it's eqaul 1.4

3 0
2 years ago
Read 2 more answers
Can someone please give me the answer I will mark I brilliant
d1i1m1o1n [39]

Answer:

294

Step-by-step explanation:

Area = length x width

Area of one square is 7 x 7 or 49

There are 6 squares so do 49 x 6 or 49 + 49 + 49 + 49 + 49 + 49 + 49

Answer is 294.

7 0
2 years ago
Read 2 more answers
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