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dlinn [17]
2 years ago
7

The cost of three bars of chocolate,, two oranges and one packet of mints is £3.14

Mathematics
1 answer:
user100 [1]2 years ago
5 0

Answer:

2.45

Step-by-step explanation:

thats is answer

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A number written in the form a + bi is called a _____ number.
postnew [5]
The answer is complex number

a complex number is 2 parts
1. the real part
2. the imaginary part

the real part is the 'a' part of the a+bi
the imaginary part is the 'bi' part of the a+bi

answer is A
(B means exponent is no higher than 1, C means exponent is 2, D means b^2-4ac)

answer is A
5 0
3 years ago
Please help me calculate this I am in y 5
aleksley [76]

Answer:

Going from bottom to top, left to right:

3804

5005

8118

15094

13391

28485

27422

Step-by-step explanation:

3 0
3 years ago
Find the height of the building below by using your knowledge of trigonometry.
Lilit [14]

Answer:

50\sqrt{3}

Step-by-step explanation:

The figure represents a 30-60-90 special triangle

in this special right triangle the measure of sides lengths is represented by

a, a\sqrt{3}, and 2a

The side length that sees angle measure 30 is represented by a and here we see a = 50m

The height of the building, which sees angle measure 60, is equal to

50\sqrt{3}

5 0
2 years ago
What is the value of h (−2) when h (x) = 3x + 1?<br><br> ​ h (−2) =
Veseljchak [2.6K]
All you need to do is substitue -2 into the equation for x, 

h(-2) = 3(-2) + 1 = -6 + 1 = -5
6 0
3 years ago
A regression equation is obtained for a collection of paired data. It is found that the total variation is 20.711 , the explaine
galben [10]

Answer:

0.898

Step-by-step explanation:

The formula for the Coefficient of determination = ratio of explained variation to Total variation

From the above question, we have the following values

Explained variation = 18.592

Total variation = 20.711

The coefficient of determination = 18.592 : 20.711

= 18.592/20.711

= 0.8976872194

Approximately ≈ 0.898

Therefore, the coefficient of determination is 0.898

8 0
3 years ago
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