All categories

3 years ago

∠A and ∠B are complementary angles of right triangle ABC, cos A = 0.83, and cos B = 0.55. What is sin A sin B?

Mathematics

1 answer:

Tanzania [10]3 years ago

4 0

Sin(x) = cos(90-x) , so the answer is 0.83 * 0.55

You might be interested in

10A. A triangle has side lengths of 10 centimeters, 24 centimeters and 28

tekilochka [14]

Answer:

Step-by-step explanation:

10² + 24² ≠ 28²

6 0

3 years ago

3+x=8 What would like match this answer

postnew [5]

Answer:

x = 5

Step-by-step explanation:

x = 8 - 3

Thus, x = 5

8 0

3 years ago

Read 2 more answers

Susan has already knit 36 centimeters of scarf,and can knit 1 centimeter each night. After 10 nights of knitting,how many centim

nasty-shy [4]

Answer:

46 cm

Step-by-step explanation:

If Susan can knit 1 cm per night and knits for 10 nights the is 10cm. Then you add the 10cm to the 36cm to get 46cm.

5 0

3 years ago

What is the value of x2+9x+20 when x could be -5, -3 or -6

ANTONII [103]

Answer:

Step-by-step explanation:

You should use a ^ to indicate an exponent. x^2 is the same as x².

x² + 9x + 20

Replace the x with (-5).

(-5)² + 9(-5) + 20 = 25-45+20 = 0

Then do the same with x = (-3):

(-3)² + 9(-3) + 20 = 9 - 27 + 20 = 2

You can do x = (-6)

3 0

3 years ago

The dimensions of the base of Box 1 are x by 3x. The base area of Box 1 is: 3x 3x2 3x3 4x

Lunna [17]

<h3>The base area of box 1 is $3x^2\ square\ units$ </h3>

<em><u>Solution:</u></em>

Given that,

The dimensions of the base of Box 1 are x by 3x

Length = x

Width = 3x

To find: base area of box 1

<em><u>The base area is given as:</u></em>

$base\ area = length \times width\\\\base\ area = x \times 3x\\\\base\ area = 3x^2$

Thus base area of box 1 is $3x^2\ square\ units$

4 0

3 years ago

Read 2 more answers