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3 years ago

What is equivalent of 2/7

Mathematics

1 answer:

natita [175]3 years ago

7 0

4/14 because you multiply each number by 2

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How much shorter of a kiloliter is 498 Litre?

Dmitriy789 [7]

Answer:

Step-by-step explanation:

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3 years ago

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Mark has, in his kitchen, the ingredients needed to prepare 78 different recipes with two ingredients

pochemuha

Answer:

13 ingredients

Step-by-step explanation:

The number of different recipes that can be made from 2 ingredients = 78

Since there are no two recipes that share the exact same two ingredients ;

The number of recipes in Mark's kitchen is:

nCk = 78

k = Number of ingredients per recipe = 2

n = total number of ingredients in kitchen

Total recipes made = 78

n! / (n-r)!r! = 78

n! / (n - 2)!2! = 78

n(n-1)(n-2)! / (n-2)! * 2 * 1 = 78

n(n - 1) / 2 = 78

n(n-1) = 156

n² - n = 156

n² - n - 156 = 0

Factorize :

n² - 13n + 12n - 156 = 0

n(n - 13) +12(n-13) = 0

(n-13) = 0 ; (n+12) = 0

n = 13 or n = - 12

n cannot be negative

Hence, n = 13

Number of ingredients is 13

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3 years ago

What is this plug's brand?

UkoKoshka [18]

Answer:

ce smart home

Step-by-step explanation:

it says it righ tthere

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3 years ago

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I will give Brainlyest!!! Key features of graphing the parabola: y=x^2+12x+32 A. AxisofSymmetry: x = − b/2a B. Vertex: C. Zero

slamgirl [31]

Answer:

Axis of Symmetry: -6

Vertex: (-6, -4)

x- int: (-4, 0) (-8, 0)

y-int: (0, 32)

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3 years ago

Find the measure of x.

nikitadnepr [17]

Answer:

x = 5.6

Step-by-step explanation:

Using trigonometric ratios.

$tan 34 = \frac{opposite}{adjacent}$

$0.6745 = \frac{x}{8.3}\\\\x = 8.3 \times 0.6745\\\\x = 5.6$

6 0

4 years ago