What is the area of the shaded shape?

= 1 square unit
A 34 square units
B 36 square units
C 39 square units
D 35 square units

25 answers

To determine the area of the shaded shape, it is essential to have a visual representation or more information about the specific geometry of the shape. Since the current information does not specify the shape or provide a diagram, I am unable to calculate or deduce the area.

If you can describe the figure, provide the dimensions, or share a diagram, I will be happy to assist you in calculating the area.

What number is missing?
9=
-6
A
13
B
14
C
15
D
16

The expression you provided appears to be formatted as a mathematical equation that is missing an operation. Let's assume you are asking what number should replace the "=" to make the equation valid for the expression "9 = ? - 6".

Rearranging the equation gives:

\[ ? = 9 + 6 \] \[ ? = 15 \]

Thus, the missing number is 15.

So the correct answer is C) 15.

Solve x²+13x+42=0 by factoring.
A
x 6 or x 7
B
x=-6 or x 7
C
x= 6 or x=7
D
x=-6 or x=-7

To solve the quadratic equation \(x^2 + 13x + 42 = 0\) by factoring, we need to find two numbers that multiply to \(42\) (the constant term) and add to \(13\) (the coefficient of \(x\)).

The two numbers that satisfy these conditions are \(6\) and \(7\) since:

  • \(6 \times 7 = 42\)
  • \(6 + 7 = 13\)

We can factor the equation as follows:

\[ (x + 6)(x + 7) = 0 \]

Setting each factor equal to zero gives us the possible solutions:

  1. \(x + 6 = 0 \Rightarrow x = -6\)
  2. \(x + 7 = 0 \Rightarrow x = -7\)

Therefore, the solutions are:

  • \(x = -6\) or \(x = -7\)

So, the correct answer is D) \(x = -6\) or \(x = -7\).

7x=42
A 4
B 6
C 7
D 8

To solve the equation \(7x = 42\), we need to isolate \(x\).

We can do this by dividing both sides of the equation by \(7\):

\[ x = \frac{42}{7} \]

Calculating the right side:

\[ x = 6 \]

So the solution is \(x = 6\).

The correct answer is B) 6.

What number goes in the box?
81+
|= 9
A 9
B 90
C 72
D 10

The expression you provided appears to be related to the square root operation. Given \(81 + | = 9\), we can interpret it as follows:

The square root of the number inside the box plus 81 equals 9:

\[ \sqrt{81 + x} = 9 \]

Squaring both sides, we eliminate the square root:

\[ 81 + x = 9^2 \] \[ 81 + x = 81 \]

Now, subtract \(81\) from both sides:

\[ x = 81 - 81 \] \[ x = 0 \]

However, it seems there's a misunderstanding in my interpretation. Let’s analyze a simpler mathematical relationship that involves the given options. If we take the equation as simply adding \(81\) with the figure in the box to get \(9\), that wouldn’t hold true as \(81\) is already greater than \(9\).

There seems to be a possibility of evaluating \(| = x\) as the absolute value function, but we don't require that here due to the context and lack of additional expressions.

Given the typical operation and available answers, none fit the straightforward interpretation. Thus, the correct interpretation that fits best contextually involves plugging in values for completeness:

Testing the other values quickly shows none hold for:

  • A: \(81 + 9 = 90\) (wrong)
  • B: \(81 + 90 = 171\) (wrong)
  • C: \(81 + 72 = 153\) (wrong)
  • D: \(81 + 10 = 91\) (wrong)

Thus it might require clarification of the initial problem setup because ( | or boxed representations require further context in actual mathematical situations.

The only option that can fit as originally detailed but in a different format could be \( \text{absolute value surroundings.}\)

If you can clarify further surrounding the box or operational expectations, please share, and I’d be happy to assist better!

Add: 245+635
A 890
B 870
C 880
D 390

To add the numbers \(245\) and \(635\):

\[ 245 + 635 = 880 \]

Thus, the correct answer is C) 880.

What number goes in the box?
- =
|=116
326-
A
210
B 211
с 209
D 442

The expression you've provided seems to imply the equation structure in a way that we can interpret it as:

\[ 326 - x = 116 \]

where \(x\) is the number that goes in the box.

To solve for \(x\), we can rearrange the equation:

\[ x = 326 - 116 \]

Now, we will perform the subtraction:

\[ x = 210 \]

So, the number that goes in the box is A) 210.

What is the perimeter of the trapezoid?
10 cm
13 cm
20 cm
A 26 cm
B
30 cm
46 cm
D
56 cm
13 cm

To find the perimeter of a trapezoid, you need to add the lengths of all its sides. The perimeter \( P \) can be calculated using the formula:

\[ P = a + b + c + d \]

where \( a, b, c, \) and \( d \) are the lengths of the sides of the trapezoid.

From the information provided, it seems the trapezoid has side lengths of \( 10 , \text{cm}, 13 , \text{cm}, 20 , \text{cm}, \) and \( 13 , \text{cm} \) (assuming that the repeated side of \( 13 , \text{cm} \) belongs to the trapezoid).

Let's sum these side lengths:

\[ P = 10 + 13 + 20 + 13 \]

Calculating this gives:

\[ P = 10 + 13 = 23 \] \[ P = 23 + 20 = 43 \] \[ P = 43 + 13 = 56 \]

Therefore, the perimeter of the trapezoid is D) 56 cm.

Julio and Ashley went to the drive-in theater. They paid an entry fee for the car and individual entry fees for themselves. Their total cost can be modeled by the expression 2.5x+10. Which of the following answer choices accurately interprets a part of the algebraic expression? (1 point) Responses Each individual entry fee was $10.00. Each individual entry fee was $10.00. The entry fee for the car was $10.00. The entry fee for the car was $10.00. The entry fee for the car was $12.50. The entry fee for the car was $12.50. The entry fee for the car was $2.50.

The expression \(2.5x + 10\) can be broken down as follows:

  • The term \(2.5x\) represents the cost associated with the individual entry fees. In this context, \(x\) would likely represent the number of people (Julio and Ashley), and each person's entry fee is $2.50. Thus, if there are 2 people, the total for individual entry fees would be \(2.5 \times 2 = 5\).

  • The term \(+ 10\) represents the entry fee for the car.

Considering the components of the expression:

  • \(2.5x\): Each individual entry fee is $2.50.
  • \(10\): The entry fee for the car is $10.00.

Therefore, the interpretation of the expression shows that the entry fee for the car was $10.00.

So the correct answer is:

The entry fee for the car was $10.00.

Given the equation 8x−3y=2x+9y, which of the following statements is correct?(1 point) Responses There are four variables. There are four variables. 8, −3, 2, and 9 are coefficients. 8, negative 3 , 2, and 9 are coefficients. 8, −3, 2, and 9 are constants. 8, negative 3 , 2, and 9 are constants. 8 is the only factor of 8x.

Let's analyze the given equation:

\[ 8x - 3y = 2x + 9y \]

To evaluate the statements in the context of the equation:

  1. There are four variables.

    • This is incorrect. The variables in the equation are \(x\) and \(y\), which means there are only two variables.
  2. 8, −3, 2, and 9 are coefficients.

    • This statement is correct. In the context of the equation, the number in front of the variable (e.g., \(8\) in \(8x\), \(-3\) in \(-3y\), \(2\) in \(2x\), and \(9\) in \(9y\)) are indeed coefficients.
  3. 8, −3, 2, and 9 are constants.

    • This is incorrect. Coefficients are not constants. Constants are values that do not change, while coefficients are the numbers that multiply the variables.
  4. 8 is the only factor of 8x.

    • This is somewhat misleading. In the expression \(8x\), \(8\) is the coefficient, but \(x\) can also be considered a factor. So, while \(8\) is a factor of the term \(8x\), it is not the only factor (since \(x\) is also a factor).

Given the above analysis, the correct statement is:

8, −3, 2, and 9 are coefficients.

An equation can be broken down into expressions, terms, variables, constants, and coefficients. In the equation 0.4−7x=3, what is/are the constant(s) in the equation?(1 point) Responses 0.4 and 3 0.4 and 3 3 3 −7 negative 7 0.4

In the equation

\[ 0.4 - 7x = 3, \]

we can identify the following components:

  • Constants are the numerical values that do not change, and they are not attached to any variable.
  • Coefficients are the numerical values that are attached to variables.

Now, let's analyze the equation:

  • The constant in the equation is \(0.4\) (which is a standalone number) and \(3\) (which is on the other side of the equation).
  • The term \(-7x\) includes the coefficient \(-7\) and the variable \(x\), which are not constants.

Therefore, the constants in this equation are:

0.4 and 3.

So the correct answer is:

0.4 and 3.

Use the grouping symbols to interpret the following equation: x8=3(x+4)2. Which expression in the equation represents a product?(1 point) Responses 3(x+4)2 Start Fraction 3 left parenthesis x plus 4 right parenthesis over 2 End Fraction 3(x+4) 3 left parenthesis x plus 4 right parenthesis 2 2 x8 Start Fraction x over 8 End Fraction

To interpret the equation \(x^8 = 3(x + 4)^2\) and identify which expression represents a product, let's analyze the given options:

  1. 3(x + 4)^2
    This expression represents a product because it consists of the coefficient \(3\) multiplied by the quantity \((x + 4)^2\). The squared term itself indicates \((x + 4) \cdot (x + 4)\), making it a product.

  2. \(\frac{3(x + 4)}{2}\)
    This expression represents a division (with a fraction) and thus is not solely a product.

  3. 3(x + 4)
    This is also a product (specifically the coefficient \(3\) multiplied by the term \((x + 4)\)).

  4. 2
    This is simply a number and does not represent a product.

  5. \(x^8\)
    While it represents a term with a variable raised to a power, it does not explicitly represent a product of multiple factors.

Given the options, the expression 3(x + 4)^2 most clearly represents a product because it involves the multiplication of \(3\) and the squared quantity \((x + 4)^2\).

So the correct answer is:

3(x + 4)².

Consider the expression [3(42+32÷4−5)]. Which quotient must be found to simplify the expression?(1 point) Responses 48÷4 48 divided by 4 32÷4 32 divided by 4 96÷4 96 divided by 4 144÷4

To simplify the expression \[3(42 + 32÷4 - 5)\], we follow the order of operations, which is parentheses, exponents, multiplication and division (from left to right), and addition and subtraction (from left to right)—often abbreviated as PEMDAS.

  1. First, evaluate the expression inside the parentheses: \[42 + 32÷4 - 5\]

  2. Next, perform the division:

    • The division that needs to be found is \(32 ÷ 4\) (since we need to calculate \(32\) divided by \(4\)) before performing the addition and subtraction.

Thus, the quotient that must be found to simplify the expression is:

32 ÷ 4.

This matches the response option, so the correct answer is:

32 ÷ 4.