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Marizza181 [45]
3 years ago
10

What is 78% of 30?

Mathematics
2 answers:
NeTakaya3 years ago
7 0

78% of 30 would be 23.4 jzjxjxjjxjxjjxjdjdjdj

RSB [31]3 years ago
5 0

Answer:

78% of 30 is 23.4

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Find the area of the right triangle △DEF with the points D (0, 0), E (1, 1), and F.
Tems11 [23]

Answer:

The area of the triangle is  \sqrt{3}

Step-by-step explanation:

Given:

Coordinates D (0, 0), E (1, 1)

Angle  ∠DEF = 60°

△DEF is a Right triangle

To Find:

The area of the triangle

Solution:

The area of the triangle is  = \frac{1}{2}(base \times height)

Here the base is Distance between D and E

calculation the distance using the distance formula, we get

DE  = \sqrt{(0-1)^2 + (0-1)^2}

DE =\sqrt{(-1) ^2 + (-1)^2

DE = \sqrt{1+1}

DE = \sqrt{2}

Base = \sqrt{2}

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DF =tan(60^{\circ}) \times DE

DF = \sqrt{3} \times DE

DF = \sqrt{3} \times\sqrt{2}

Now, the area of the triangle is

= \frac{1}{2}({\sqrt{2})(\sqrt{3} \times \sqrt{2})

=\frac{1}{2}({\sqrt{2})(\sqrt{3} \sqrt{2})

=\frac{1}{2}(2\sqrt{3} )

=\sqrt{3}

6 0
2 years ago
Tate and Black cut a pizza into 8 equal slices. Tate eats 3 slices and Black eats 4 slices. Write a fraction to represent the am
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7/8 because there are 8 pieces of pizza and they eat 7 slices of pizza.

3 0
2 years ago
Please help me out on this one please thank hope y’all are safe love you all
inysia [295]

Answer:

it

Step-by-step explanation:

it is C hope this helps

8 0
2 years ago
Read 2 more answers
Raoul has to finish a 473-page book in a week. He decides to read the same number of pages each weekday and 30 extra pages on Sa
hodyreva [135]

Answer:

59  pages

Step-by-step explanation:

Variable:

x = number of pages he has to read on a weekday

x + 30 = The number of pages read on Saturday and Sunday

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==> 5x + 2x + 60 = 473

==> 7x =413

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6 0
3 years ago
PLZ HELP
docker41 [41]

Answer:

61

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a_{1}=5\\a_{n}=2a_{n-1}+3\\a_{2}=2*5+3=13\\a_{3}=2*13+3=29\\a_{4}=2*29+3=61

3 0
2 years ago
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