MATHEMATICS HIGH SCHOOL

Please help me!! f(x)= \left[\begin{array}{ccc}x^2,&x\leq &1\n2x+1,&x\ \textgreater \ &1\end{array}\right]

A.) Evaluate f(0)

Thanks fam

Answers

Answer 1
Answer:

The piece wise function is written that if X is ≤1 use the top equation and if x is > 1 use the bottom equation.

f(0) means that X is = 0, so you would use the top equation:

x^2

Replace x with 0 to get 0^2 which is 0 x 0 = 0

F(0) = 0

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If 18 in is equal to 1 1/2 feet how many feet is a 36 in board
I need help with these please not number 3
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For the right triangle shown, which expression represents the length of CA? a. 5cos(25°)
b. 5tan(25°)
c. 5/sin(25°)
d. sin(25°)/5

Answers

Answer:

  b. 5tan(25°)

Step-by-step explanation:

The tangent function gives the ratio between the side opposite and the side adjacent to the angle. That is ...

  tan(25°) = ?/5

Multiplying by 5 solves the equation:

  ? = 5·tan(25°)

Answer:

B

Step-by-step explanation:

I did it one usatestprep

Please help me on #37. I know for A you would use the quadratic equation but I got the wrong answer.

Answers

Δ = (8i)^2 - 4*(-25) => Δ = -36 +100 => Δ = 64 => x1 =(-8i + 8)/2 => x1 = -4i +4;
x2 = (-8i - 8)/2 => x2 = -4i-4; in this case, your solutions are complex conjugates.

A bicycle shop repaired 40 bicycles in 8 days. What was the rate of work?

A.


B.


C.


D.

Answers

40÷8= 5
they repaired on average 5 bikes per day
The bike shop repairs 40/8=5 bicycles per day, on average.

Simplify 81^1/2
Please simplify and show steps

Answers

a^(n)/(m)=\sqrt[m]{a^n}\n\n\n81^(1)/(2)=√(81)=9\n\n\n81^(1)/(2)=(9^2)^(1)/(2)=9^{2\cdot(1)/(2)}=9

The expression 81⁽¹/²⁾ simplifies to 9.

To simplify the expression 81¹/², we can evaluate the squareroot of 81.

The square root of a number x is a value that, when multiplied by itself, gives x. In this case, we're looking for the number that, when squared, equals 81.

The square root of 81 is 9 since 9 x 9 = 81.

Therefore, 81⁽¹/²⁾ simplifies to 9.

In terms of steps, we can represent the process as follows:

1. Recognize that 81⁽¹/²⁾ represents the square root of 81.

2. Evaluate the squareroot of 81, which is 9.

3. Thus, 81^(1/2) simplifies to 9.

By simplifying the expression, we find that 81⁽¹/²⁾is equal to 9.

To learn more about the expression;

brainly.com/question/24242989  

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Four friends go to the movies and split the total cost between them the total is 17.28 for movie tickets and 13.68 for snacks how much should each of them pay ? A) 7.77
B)7.74
C)10.32
D)30.96

Answers

the answer is: D 30.96.

Hope this helps! (:

15 is 2 1/2 of what number?

Answers

15 is 2 1/2 of a number 6.

We need to find that 15 is 2 1/2 of what number.

What is the meaning of 'of' in maths?

In math, 'of' is also considered one of the arithmeticoperations which means multiplication within the brackets.

Let the unknown number be y.

Now, 2 1/2 of y=15

⇒5/2 ×y=15

⇒y=6

Therefore, 15 is 2 1/2 of 6.

To learn more about algebraic expressions visit:

brainly.com/question/953809.

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▪ Answer:

n = 6

▪ Step-by-step explanation:

n × 2 1/2 = 15

n × 5/2 = 15

n × 5 = 30

n = 30 ÷ 5

n = 6
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