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3 years ago

How do you do this? Please help!

Mathematics

1 answer:

jeka943 years ago

4 0

A=((8.9+8.9)/2) * 5.4 = 48.06P= 8.9*2 +6*2 = 28.4

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Janna has 34 pennies. Mandy has 48 pennies. Mandy says they have 72

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Mandy should add the tens before she adds the ones.

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There are no other good answers and the correct answer is 82 pennies.

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Suppose we have a right triangle with legs of length a and b and hypotenuse of length c. Suppose b=3 and c=5. Then a= , For the

ANTONII [103]

Answer:

Length of right-angle triangle 'a' = 4

$sin(A) = \frac{opposite side}{Hypotenuse} = \frac{a}{c} = \frac{4}{5}$

$cos(A) = \frac{Adjacent side}{Hypotenuse} = \frac{b}{c} = \frac{3}{5}$

$tan(A) = \frac{opposite side}{Adjacent side} = \frac{a}{b} = \frac{4}{3}$

Step-by-step explanation:

Step(i):-

Given b = 3 and hypotenuse c = 5

Given ΔABC is a right angle triangle

By using pythagoras theorem

c² = a² + b²

⇒ a² = c² - b²

⇒ a² = 5²-3²

=25 - 9

a² = 16

⇒ a = √16 = 4

The sides of right angle triangle a = 4 ,b = 3 and c = 5

Step(ii):-

$sin(A) = \frac{opposite side}{Hypotenuse} = \frac{a}{c} = \frac{4}{5}$

$cos(A) = \frac{Adjacent side}{Hypotenuse} = \frac{b}{c} = \frac{3}{5}$

$tan(A) = \frac{opposite side}{Adjacent side} = \frac{a}{b} = \frac{4}{3}$

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3 years ago

Convert 5.100 × 10-3 to ordinary notation. a.0.0005100 b.0.005100 c.510.0 d.5100

kondor19780726 [428]

5.100 x 10⁻³ = 5.100 x 0.001
= 0.005100 (shift the decimal point for 5 by 3 units left)

Alternatively, because 10⁻³ = 1/1000, therefore
5.100 x 10⁻³ = 5.1/1000

0.0051
---------------
1000 | 5.100
5000
-------------
1000
1000

This yields the same result.

Answer: b. 0.005100

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4 years ago

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Answer:

I think its B I'm so sorry if its wrong

Step-by-step explanation:

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