Simplify sin(3x+13)=cos(4x)

Answers

Answer 1
Answer: Sin(3×+13)=sin(pi/2-4×)
3x+13 =pi/2 -4×          or 3×+13 =pi-pi/2 + 4×
7× = pi/2 - 13 +k2pi   or -× = pi/2 +k2pi
× = pi/14 - 13/7 k2pi/7   or X = -pi/2 + kpi


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Help and solve for x
2(2x+6)

Answers

Answer:

x = 3

Step-by-step explanation:

2(2x + 6)

4x + 12

4/4 = 1

12/4 = 3

x = 3

Hopefully this helps you :)

pls mark brainlest  ;)

PLEASE HELP!!!!!!!!Rewrite the following compound statement as a biconditional.

If it rains, then I use an umbrella, and if I use an umbrella, then it is raining.

a. If I use an umbrella, then it is raining.
b. If my umbrella is broken, then it is not raining.
c. I use an umbrella, if it rains.
d. I use an umbrella if and only if it rains.

Answers

I think the correct answer from the choices listed above is option D. biconditional statement is defined to be true whenever both parts have the same truth value. Therefore, the statement would be "I use an umbrella if and only if it rains." Hope this answers the question. Have a nice day.

Answer:

Your answer would be D.

I use an umbrella if and only if it rains.

Trust me on this it makes a lot of since


If a triangle has a height of 12 inches and a base of 5-inches what is its area

Answers

Area of triangle = 1/2 * base * hight 
 A = 1/2 * 12 * 5 = 30 inch^2 
A=(1/2)bh
h=12
b=5
A=(1/2)(5)(12)
A=(1/2)(60)
A=30
answe ris 30 in^2

PLSSSSSSSSSS HELPPPPPP MEEEEEEEEEEE!!!!!!!!!! BIGGGGGGG PARTTTTTTTT OFFFF GRADEEEEE!!!!!!!!!!!!!!Two hikers are 22 miles apart and walking toward each other. they meet in 4 hours. find the rate of each hiker if one hiker walks 1.1 mph faster than the other.

Answers

Answer:

pls give brainliest (answer at bottom)

Step-by-step explanation:

Let's call the rate of the slower hiker "x" mph.

The faster hiker walks 1.1 mph faster than the slower hiker, so their rate is "x + 1.1" mph.

Now, we know that distance = rate × time. In this case, both hikers are walking towards each other, so we can add their distances to get the total distance of 22 miles:

Distance of the slower hiker + Distance of the faster hiker = Total distance

4x + 4(x + 1.1) = 22

Now, let's solve for x:

4x + 4x + 4.4 = 22

Combine like terms:

8x + 4.4 = 22

Subtract 4.4 from both sides:

8x = 22 - 4.4

8x = 17.6

Now, divide by 8 to find the rate of the slower hiker:

x = 17.6 / 8

x = 2.2 mph

So, the slower hiker's rate is 2.2 mph, and the faster hiker's rate is:

x + 1.1 = 2.2 + 1.1 = 3.3 mph

Therefore, the slower hiker walks at 2.2 mph, and the faster hiker walks at 3.3 mph.

Use long division or synthetic division to find the quotient of

Answers

Answer:

2x^2-x+1

Step-by-step explanation:

Answer:

2x² - x + 1

Step-by-step explanation:

((2x^(2)-x+1)(x+1))/((x+1)) = 2x^(2)-x+1

A student has to take two quizzes tomorrow. He has only enough time to study for one of them. The history quiz has 5 true or false questions. The science quiz has 3 multiple choice questions.

Answers

Answer:

Answer:

Option B is correct.

Miguel should study for the Science quiz as he will do worse in that quiz by guessing.

Step-by-step explanation:

Miguel has to take two quizzes

1) 4 true or false questions on History with a 0.5 chance of acing the quiz

Expected number of correct questions = np

n = number of questions

p = probability of acing the test

Expected number of correct questions = 4 × 0.5 = 2

2) 3 multiple choice questions on Science with a 0.2 chance of acing the quiz.

Expected number of correct questions = 0.2 × 3 = 0.6

It is evident that guessing would yield a worse result in the Science quiz with less than 1 question expected to be correct than history, where he is still expected to get 2 questions correctly by guessing.

Answer:

He is correct

Step-by-step explanation: