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3 years ago

Simplify the expression below.

Mathematics

1 answer:

Novay_Z [31]3 years ago

5 0

Answer:

$\displaystyle 6$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Step-by-step explanation:

Step 1: Define

$\displaystyle \frac{7^2 - 13}{24 - 18}$

Step 2: Evaluate

[Fraction] Exponents: $\displaystyle \frac{49 - 13}{24 - 18}$
[Fraction] Subtract: $\displaystyle \frac{36}{6}$
[Fraction] Divide: $\displaystyle 6$

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The sum of two numbers is 50 and their difference is 4 what are the numbers

Ivenika [448]

Answer:

27 and 23

Step-by-step explanation:

x + y = 50

x - y = 4

2x = 54

x = 27

y = 23

8 0

3 years ago

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According to the graph, what is the value of the constant in the equation

wolverine [178]

The question is missing the graph. So, it is attached below.

Answer:

(D) 3.2

Step-by-step explanation:

Given:

A graph of height versus width.

The equation given is:

Height = constant × Width

Rewriting in terms of 'constant'. This gives,

$\textrm{Constant}=\frac{Height}{Width}$ ------------- (1)

The width is plotted on the X-axis and the corresponding height is plotted on the Y-axis.

The four points plotted on the line are:

$(x, y) = (0.5, 1.6), (1, 3.2), (2, 6.4)\ and\ (3, 9.6)$ .

Now, any point will satisfy equation (1).

Consider the point (0.5, 1.6). So, height = 1.6 and width = 0.5. Therefore,

$\textrm{Constant}=\frac{Height}{Width}\\\\\textrm{Constant}=\frac{1.6}{0.5}=3.2$

Also, we observe that for all the remaining points,

$\dfrac{3.2}{1}=\dfrac{6.4}{2}=\dfrac{9.6}{3}=3.2$ .

Hence, the value of the constant is 3.2.

Option (D) is correct.

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3 years ago

For a fundraiser the basketball team is selling 75 wrist bands for $3 each. The wrist bands cost a total of $37.50. if they sell

just olya [345]

They would make a profit of $187.50

(if that is what you were trying to ask)

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3 years ago

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Shkiper50 [21]

Answer:

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Step-by-step explanation:

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2 years ago

Let f(x)=−1/2(x+2)^2+5 .

jolli1 [7]

Answer: 2

Explanation:

The average rate of change is the net change of the function, i.e. final value less initial value, divided by the interval:

                                                     f(b) - f(a)       f(1) - (f(-3)
average change rate from a to b = ---------------- = ---------------
                                                     b - a             1 - (-3)

f(1) = -(1/2) (1 + 2)² + 5 = -(1/2) (3)² + 5 = 5 - 9/2 = 1/2

f(-3) = -(1/2) ( -3 + 2)² + 5 = -(1/2) (-1)² + 5 = 5 - 1/2 = 9/2

                                         (1/2) - (9/2)
average change rate = -------------------- = 2
                                             1 - 3
That is the answer.

8 0

3 years ago

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Simplify the expression below. ​

Simplify the expression below.