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vichka [17]
2 years ago
15

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

Mathematics
1 answer:
mart [117]2 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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Find the value of x in the equation below.<br> 48 = 6x
Akimi4 [234]

Answer:

x=8

Step-by-step explanation:

This is a simple one-step algebraic equation. In algebra, to find x you must isolate the variable. To do this, use the property of equality. This property states that an equation is still true if you do the same thing to both sides. For example, the equation would still be true if you added 1 to both sides.

To isolate x divide both sides by 6. This equals 48/6 = 6x/6. Which simplifies to 8=x.

7 0
2 years ago
Jason has a piece of wire that is 63.9 inches long. He cuts the wire into 3 equal places. Estimate the length of one piece of wi
Shtirlitz [24]

Answer: 21.3

Step-by-step explanation:

63.9 divided by 3 equal pieces is 21.3!

5 0
3 years ago
I need help thank you
Andreyy89

Answer: A

Step-by-step explanation:

For this problem, we need to understand how translations work.

As you can see, the triangles only slide to the right side, along the x axis. Therefore, we can eliminate B and C.

Now, we can see that the triangle has shifted by +8 units. Therefore, A is the correct answer.

7 0
2 years ago
What percent of 150 is 9?
irga5000 [103]
One of the ways to find the answer is to find how much 1 percent of 150 is. To do that we just have to divide 150 by 100:

150 / 100 = 1.5

Now we can divide 9 by 1.5 to know how much percent of 150 it is:

9 / 1.5 = 6

Let's check it:

150 * 6% = 150 * 6/100 = 15 * 6/10 = 3 * 6/2 = 18/2 = 9

It's correct then :)
3 0
3 years ago
Which variable expression matches the word phrase? Column A Column B
erik [133]
<span>1. the sum of 12 and the quotient of 9 and a number

The responder's answer is not given but it can be 12 + (9 / n)

2. </span>the difference of 12 and the product of 9 and a number

The responder's answer would be <span>c. 12 – 9y

3</span>. the difference of 12 and the quotient of 9 and a number

The responder's answer would be <span>b. 12 – (9 ÷ y)
</span>
<span>4. 12 more than quotient of a 9 and number
</span>
The responder's answer would be<span> a. 12 + (9 ÷ y)</span>






4 0
3 years ago
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