Variable x is 7 more than variable y. Variable x is also 1 less than y. Which of the following pairs of equations best models the relationship between x and y? (4 points)



x = 1y
x = y + 7

x = y + 7
x = y – 1

y = x + 8
y = x – 1

y = 7x
y = x + 1

Given that all helmets in the bin are red, the probability of randomly selecting a red helmet is 1, which corresponds to answer C.

The question is asking for the probability that a randomly selected helmet from a bin of four is red. Since all the helmets in the bin are red, no matter which one you pick, it will be red. In probability, this is represented as the total number of favorable outcomes divided by the total number of outcomes. In this scenario, both favorable outcomes (red helmets) and total outcomes (helmets in the bin) are four. Mathematically, 4/4 results in 1. So, the correct answer is C which symbolize the probability to be 1.

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1. The student that wrote a statistical question is Lisa. This is because there can be many answers to the question

2. The score of each student is: 4.5 points.

A statistical question is a question whose answer can be gotten by collecting data that has variability. That is, the answers to the question may be many.

1. The question that is more statistical in nature is Lisa's. This is because there can be many answers to the question

2. The average of a data is the mean, which is the sum of all data points divided by the number of data points.

Therefore, if all students had the same score and the mean score was 4.5, it means the score of each student is: 4.5 points.

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Final answer:

To multiply 5 by the expression (2a-7b-2), each term inside the parentheses is multiplied by 5, resulting in the final expression 10a - 35b - 10.

Explanation:

To use the distributive property to multiply 5(2a-7b-2), multiply each term inside the parentheses by 5.

Multiply 5 by 2a which gives 10a.

Multiply 5 by -7b which gives -35b.

Multiply 5 by -2 which gives -10.

Now, combine these results to get the final expression: 10a - 35b - 10.

Answer:

Transactional service - APEX

Step-by-step explanation:

11) Since the triangle has a pair of congruent base angles, it is an isosceles triangle which means that the two pairs of legs are congruent.

Make them equal to each other in an equation.

5x = x + 20

Subtract x from both sides.

4x = 20

Divide both sides by 4.

x = 5

12) The two legs are congruent so that means the base angles must be congruent. First find the measure of the base angles. Create an equation:

x + x + 50 = 180

Combine like terms.

2x + 50 = 180

Subtract 50 from both sides.

2x = 130

Divide both sides by 2.

x = 65

Now make the base angle plus x equal 180, because they form a straight line.

65 + x = 180

Subtract 65 from both sides.

x = 115

13) You know the vertex angle (top angle) is 90 degrees because it is supplementary to a right angle. The triangle is isosceles because the two legs are congruent, so make the base angles plus 90 add up to 180 in an equation.

x + x + 90 = 180

Combine like terms.

2x + 90 = 180

Subtract 90 from both sides.

2x = 90

Divide both sides by 2.

x = 45

Answer:

The number of spots in the parking lot if there are 32 parking spots in the first row =111.

Step-by-step explanation:

We are given that a new parking lot is being built for a medical office.

We are given that

The expression representing the number of parking spots in the new lot =[tex]\frac{15x}{4}-9[/tex]

Where x= The number of parking lots in the first row

We have to find number of spots in the parking lot when parking spots in the first row is 32.

The number of parking spots in the first row =x=32

Substitute the value of x in the given expression then we get

Number of spots in the parking lot =[tex]\frac{15\times 32}{4}-9[/tex]

Number of spots in the parking lot=[tex]\frac{480}{4}-9[/tex]

The number of spots in the parking lot=120-9

The number of spots in the parking lot=111.

Hence, the number of spots in the parking lot if there are 32 parking spots in the first row=111.

The cardboard is used to make each box is 90 in²

The surface area of a solid object is a measure of the total area that the surface of the object occupies.

Given that, pyramid-shaped gift boxes have a square bases that measure 5 inches on each side, the slant height is 6.5 inches.

We need to find that how much cardboard is used to make each box,

For the same we will simply find the surface area of the box,
So,

SA = b² + 2bs

= 5²+2(5)(6.5)

= 25+65

= 90 in²

Hence, the cardboard is used to make each box is 90 in²

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Answer:

The value of A, in square units is:

1

Step-by-step explanation:

We are given that:

[tex]s=\dfrac{1}{4}\ units\ and A=16s^2[/tex]

We have to determine the value of A

[tex]A=16\times \dfrac{1}{4}\times \dfrac{1}{4}[/tex]

⇒ A= 1 square units

Hence, the value of A, in square units is:

1

Answer:

I think the answer is 1 sorry I'm late.

Step-by-step explanation:

There are 10 possible outcomes in the sample space when tossing a coin and spinning a spinner with 5 equal sections.

When tossing a coin and spinning a spinner with 5 equal sections, the total number of outcomes in the sample space can be calculated by multiplying the number of outcomes for each event.

For the coin toss, there are 2 possible outcomes: heads (H) or tails (T).

For spinning the spinner, there are 5 possible outcomes: each of the 5 sections.

So, the total number of outcomes in the sample space is the product of these two numbers:2×5=10.

Complete question :

What is the total number of outcomes in the sample space for Tossing a coin and spinning a spinner with 5 equal sections?

the solutions to the equation [tex]\( x^2 - 7x - 8 = 0 \)[/tex] are ( x = 8 ) and ( x = -1 ).

To solve the quadratic equation[tex]\( x^2 - 7x - 8 = 0 \)[/tex]by completing the square, we follow these steps:

1. Move the constant term to the other side of the equation:

[tex]\[ x^2 - 7x = 8 \][/tex]

2. To complete the square, take half of the coefficient of ( x ) (which is -7), square it, and add it to both sides of the equation:

[tex]\[ x^2 - 7x + \left( \frac{-7}{2} \right)^2 = 8 + \left( \frac{-7}{2} \right)^2 \]\[ x^2 - 7x + \frac{49}{4} = 8 + \frac{49}{4} \][/tex]

3. Simplify the right side of the equation:

[tex]\[ x^2 - 7x + \frac{49}{4} = \frac{32}{4} + \frac{49}{4} \]\[ x^2 - 7x + \frac{49}{4} = \frac{81}{4} \][/tex]

4. Write the left side of the equation as a perfect square:

[tex]\[ \left( x - \frac{7}{2} \right)^2 = \frac{81}{4} \][/tex]

5. Take the square root of both sides to solve for ( x ):

[tex]\[ x - \frac{7}{2} = \pm \sqrt{\frac{81}{4}} \]\[ x - \frac{7}{2} = \pm \frac{9}{2} \][/tex]

6. Solve for ( x ) by adding [tex]\( \frac{7}{2} \)[/tex]to both sides:

[tex]\[ x = \frac{7}{2} \pm \frac{9}{2} \][/tex]

This gives us two solutions:

[tex]\[ x = \frac{7}{2} + \frac{9}{2} = \frac{16}{2} = 8 \]\[ x = \frac{7}{2} - \frac{9}{2} = \frac{-2}{2} = -1 \][/tex]

So, the solutions to the equation [tex]\( x^2 - 7x - 8 = 0 \)[/tex] are ( x = 8 ) and ( x = -1 ).

When we divide a circle into 4 equal parts, the angles formed are the right angles.

When a circle is divided into 4 equal parts, we get 4 quarters of the circle.

The area that is intercepted by two radii that are at 90° to each other and a quarter portion of the circumference of a circle is known as a quarter circle.

In a quarter of a circle, the angle between radii is 90 degrees.

So, When we divide a circle into 4 equal parts, the angles formed are the right angles.

Hence, When we divide a circle into 4 equal parts, the angles formed are the right angles.

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Answer:

Rotate clockwise around right most point.

Step-by-step explanation:

We are given that,

The room has an oil stain as shown in the graph.

It is required to rotate the kite figure to fully cover the stain.

So, we get,

If we rotate the figure clockwise, it will completely cover the stain.

Moreover, the figure should be rotated around the right most point clockwise, which will become the center of rotation.