admin

2 months ago

Guest #4251

2 months ago

**Answer:**

**Step-by-step explanation:**

Let and be the two points.

We have to find the distance between the two points.

**The distance Formula:**

Here, we are given = (5,1) and = (9,-6)

Then, the **distance between these two points is given by:**

**Thus, the distance between the given point is .**

Guest #4252

2 months ago

So the distance formula: d = rad (x2 - x1)^2 + (y2 - y1)^2

it doesn't matter what order you do, you just have to make sure it's a y coordinate for y and an x coordinate for x.

rad (9-5)^2 + ((-6)-1)^2

rad 4^2 + (-7)^2

rad 16 + 49

rad 65

it doesn't matter what order you do, you just have to make sure it's a y coordinate for y and an x coordinate for x.

rad (9-5)^2 + ((-6)-1)^2

rad 4^2 + (-7)^2

rad 16 + 49

rad 65

Question

Geraldine is picking a four-digit password by using the digits 0 through 9. She can use each digit only once. How many different passwords are possible

Solution 1

Number of ways = 10C4 = 10 x 9 x 8 x 7 = 5040

**Answer: 5040**

Solution 2

The answer is 2 because 10/4 = 2.5 and we can't have half of a password.

Question

A net of a square pyramid is shown below. What is the surface area, in square centimeters, of the pyramid?

Solution 1

Since, you didn't upload the picture, I can only give you the steps to the problem. Then, you can find the correct answer.

To find the surface area of an object, you have to add up the areas of all the different faces. In a square pyramid, you have to find the area of the square base. Then, add it to the area of all the triangular sides.

To find the surface area of an object, you have to add up the areas of all the different faces. In a square pyramid, you have to find the area of the square base. Then, add it to the area of all the triangular sides.

Solution 2

**Answer:**

No picture so i cannot answer the question but i can guide you to support.

**Step-by-step explanation:**

The way you would do a rectangle is: The area of a rectangle is A = l × w and the way you would do the triangle is The area of a triangle is A = one half × b × h...

Hope this helps...

:)

Question

Is .8801 positive or negative

Solution 1

.8801 is a positive number.

Unless you see the negative symbol (-), it's safe to assume that it is a positive.

Unless you see the negative symbol (-), it's safe to assume that it is a positive.

Question

Which triangle has all three angle measuring less than 90°

Solution 1

Acute triangle because all the angles are less than 90

Question

What is the first quartile of the data set? {51, 42, 46, 53, 66, 70, 90, 70} A-48.5 B-59.5 C-61 D-80

Solution 1

The first quartile is the middle of the lower half of the data.

To find this you must:

1. Order the data from least to greatest.

**42, **__46, 51__, 53, **| ** 66, 70, 70, 90

2. Next, find where the middle of the data set it - see the line above

3. Look at the lower half of the data - see the bold half above.

4. Find the middle of that half - see the underlined numbers above.

5. Find the middle of the 2 numbers

__(46 + 51)__

2 = 48.5

48.5 is the 1st quartile.

To find this you must:

1. Order the data from least to greatest.

2. Next, find where the middle of the data set it - see the line above

3. Look at the lower half of the data - see the bold half above.

4. Find the middle of that half - see the underlined numbers above.

5. Find the middle of the 2 numbers

2 = 48.5

48.5 is the 1st quartile.

Solution 2

Answer:

I'm positive the answer is 48.5

Question

write and solve an inequality for this situation. To honor 50 years of business, All Strikes Bowling is having an anniversary special. Shoes rent for $1.25 and each game is $0.75. If Charlie has $20 and needs shoes, how many games can he bowl?

Solution 1

To honor 50 years of **business**, All **Strikes Bowling **is having an **anniversary **special. The **game **he can **bowl **is 25.

The **unitary method** is a method for solving a problem by the** first value **of a **single unit **and then finding the **value **by multiplying the **single value.**

To honor 50 years of **business**, All **Strikes Bowling **is having an **anniversary **special.

**Shoes **rent for $1.25 and each **game **is $0.75. If **Charlie **has $20 and needs **shoes**.

**Charlie **can **bowl **25 **games**.

= 20 - 1.25

= 18.75

So, he can **bowl game**

= 18.75/ 0.75

= 25 **games**

Learn more about the** unitary method**;

#SPJ2

Solution 2

Charlie can bowl 25 games.

20 - 1.25 = 18.75

18.75/.75 = 25 games

20 - 1.25 = 18.75

18.75/.75 = 25 games

Question

13 percent of what is 78

Solution 1

13% of what is 78

"what" is the unknown, so use x for what.

"of" in math usually means a multiplication.

"is" means "="

13% * x = 78

0.13x = 78

x = 78/0.13

x = 600

Answer: the number is 600

"what" is the unknown, so use x for what.

"of" in math usually means a multiplication.

"is" means "="

13% * x = 78

0.13x = 78

x = 78/0.13

x = 600

Answer: the number is 600

Solution 2

I think the answer is 600

Question

The scatter plot shows the relationship between the time since Martha has left work and the distance she is from home. The equation for the line of best fits is y=-0.7x + 14.6
What does the slope of the line best fit represent?
A. On average each minute Martha gets approximately 0.7 miles closer to home.
B. On average each minute Martha get approximately 0.7 miles farther from home.
C. When Martha first leaves work she is approximately 0.7 miles from home.
D. When Martha first leaves work she is approximately 0.7 minuets from home

Solution 1

The correct answer is A.

The independent variable is time and the dependent variable is distance; this means the slope tells us how far she goes per minute. Since the slope is negative and we are referring to her distance from her house, this means the distance from her house is decreasing, which means she is getting closer to her house.

The independent variable is time and the dependent variable is distance; this means the slope tells us how far she goes per minute. Since the slope is negative and we are referring to her distance from her house, this means the distance from her house is decreasing, which means she is getting closer to her house.

Question

Justin is exchanging dollars for rolls of quarters and rolls of dimes at a bank. Each roll of quarters has a value of $10 and each roll of dimes has a value of $5. He exchanges $90 and receives 11 rolls of coins. How many of each type of roll of coins did he receive?

Solution 1

**Answer:**

**Justin got 7 rolls of quarters and 4 rolls of dimes.**

**Step-by-step explanation:**

Let the roll of quarters be x

Let the rolls of dimes be y

As total money received is $90, the equation becomes;

.....(1)

And he got 11 roll of coins, so equation becomes;

or .... (2)

Substituting the value of x from (2) in (1)

So, y = 4

As

So,

x = 7

**Hence, Justin got 7 rolls of quarters and 4 rolls of dimes.**

Solution 2

Well, it really depends but it could be 9 rolls of quarters, 5 rolls of quarters and 8 rolls of dimes, 4 rolls of quarters and 10 rolls of dimes, 3 rolls of quarters and 12 rolls of dimes, etc.

Question

The smith family is shopping for a new car and they are basing decision on color and style. Explain how many color choices and how many style choices they might have if there are 8 possible outcomes. Justify your answer

Solution 1

Either there are 2 color choices and 4 styles to choose

or 4 color choices and 2 styles to choose

or 4 color choices and 2 styles to choose

Solution 2

**Answer:**

Sample response: The Smith family has 2 choices to make, color

and style. By the fundamental counting principle, the product of the

number of choices of color and style must equal 8. So, there could be 1

color and 8 style choices, 2 colors and 4 styles, 4 colors and 2 styles,

or 8 colors and 1 style.

**Step-by-step explanation:**

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