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vichka [17]
3 years ago
15

Evaluate sin^2 (pi/4) + cos^2(pi/4) + cos.

Mathematics
1 answer:
mart [117]3 years ago
3 0

The answer of sin^2 (pi/4) + cos^2 (pi/4) is √ 2

<u>Step-by-step explanation:</u>

The value of sin^2 (pi/4) = √2/ 2

The value of cos^2 (pi/4) = √2/ 2

=  √2/ 2 +  √2/ 2

=  √2 +  √2 / 2

= 2 √2 / 2

Dividing √2 by 1

= √2

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Walter Peyton’s NFL career lasted 13 seasons and he averaged 295 rushing yards per season. Use a strategy to determine how many
padilas [110]

Answer: <em>3835 Yards</em>

Step-by-step explanation:

<em>This is a simple problem</em>

<em>First, take 295 and multiply by 13</em>

<em>like so: 295x13</em>

<em>This will result in</em>

<em>3835 yards</em>

7 0
2 years ago
A brick of aluminum weighs 19,745 grams and has the following dimensions: length 29 cm, height 15 cm, and width 51 mm. What is t
garri49 [273]

If the volume of the aluminum brick will be 2218.5 cubic cm. Then the approximate density of the aluminum will be 8.9 grams per cubic cm.

<h3>What is density?</h3>

Density is defined as the mass per unit volume. It is an important parameter in order to understand the fluid and its properties. Its unit is kg/m³.

The mass and density relation is given as

Density = mass/volume

A brick of aluminum weighs 19,745 grams and has the following dimensions: length 29 cm, height 15 cm, and width 51 mm.

Then the approximate density of the aluminum will be

The volume of the aluminum brick will be

V = 29 x 15 x 5.1

V = 2218.5 cubic cm

Then the density will be

D = 19,745 / 2218.5

D = 8.900 gram per cubic cm

To learn more about the density refer to the link;

brainly.com/question/952755

#SPJ1

3 0
1 year ago
Select the best answer for the question. 17. 18 is what percent of 20? A. 10% B. 90% C. 18% D. 95%
vovangra [49]
Percent formula : is/of = %/100

18 is what percent of 20...
is = 18
of = 20
% = x

sub and solve
18/20 = x/100
cross multiply
(20)(x) = (100)(18)
20x = 1800
x = 1800/20
x = 90 <=== so 18 is 90% of 20
8 0
3 years ago
Read 2 more answers
If 4 + 6 = 10, does (4 + 6) X 3= 10 X 3? Why or why not?​
spayn [35]
Answer: Yes, they equal

Explanation: (4 + 6) x 3 = 30 ; 10 x 3 = 30, 30 = 30
3 0
2 years ago
PLS HELP I NEED TO FINISH THIS BEFORE TOMORROW
noname [10]

Answer: The first one, the last one,

Step-by-step explanation:

3 0
2 years ago
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