All categories

3 years ago

Make COS the subject of the formula

Mathematics

1 answer:

docker41 [41]3 years ago

6 0

c^2 = a^2 + b^2 - 2(ab)(cos C)

c^2 + 2(ab)(cos C) = a^2 + b^2

2(ab)(cos C) = a^2 + b^2 - c^2

cos C = (a^2 + b^2 - c^2) / 2ab - Answer choice E

Hope this helps! :)

You might be interested in

Which sequence of transformations would result in a figure that is similar, but not congruent, to the original figure?

Mashcka [7]

If the transformation will result to an after-image that not is congruent to the original figure, then the transformation is most probably a dilation. Amon the choices, the answer must be
<span>a reflection across the y-axis followed by a dilation with a scale factor of 0.5
</span>

7 0

3 years ago

A system of two equations is shown below: equation

Ber [7]

The answer is c, or 3b+6!!

7 0

3 years ago

What is three ways to find 3 times 2 times 4?

konstantin123 [22]

There are many ways to find 3 times 2 times 4

2*3*4
4*2*3
3*4*2
2*4*3
3*2*4
4*3*2

3 0

3 years ago

NO LINKS (HALP ME SMART PPL THIS IS MULTIPLE CHOICE) I WILL FOLLOW U ON INSTA IF U GIVE ME THE ANSWERRR

kobusy [5.1K]

Based on the particular equation the answer should be 3

5 0

2 years ago

There is a a circle whose circumference is 34.54 cm.

Naily [24]

Answer:

$\huge\boxed{Diameter=11cm}$

Step-by-step explanation:

Important information:

Circumference of a circle= $\pi*diameter$

Method:

To work out the diameter, we would need to divide the circumference of 34.54 by pi, which in this case is 3.14, this gives us 11cm. This is because we are simply rearanging the formula of the circumference of a circle to make the diameter the subject.

Step By Step:

1) Rearange the formula to make the diameter the subject.

$diameter=\frac{circumference}{\pi}$

2) Divide 34.54 by 3.14( $\pi$ ).

$34.54/3.14=11cm$

5 0

2 years ago