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2 months ago

Guest #4318

2 months ago

The answer is 11abc^2 + 12a^2b + 18b^2c because:

14abc^2-3abc^2 is 11abc^2

12a^2b + 0 = 12a^2b

16b^2c +2b^2c = 18b^c

14abc^2-3abc^2 is 11abc^2

12a^2b + 0 = 12a^2b

16b^2c +2b^2c = 18b^c

Question

Determine the sum: (9r3s2t − 4r2s2t2 − 6rs2t3) + (−4r3s2t + 8rs2t3). 3r10s10t10
−r3s2t + 4rs2t3
5r6s4t2 − 4r2s2t2 + 2r2s4t6
5r3s2t − 4r2s2t2 + 2rs2t3

Solution 1

The answer is

5r3s2t−4r2s2t2+2rs2t3

5r3s2t−4r2s2t2+2rs2t3

Question

1.Wanda took out a personal loan for $5,000 at 9% simple interest. How much interest will she pay after 5 years? (SHOW YOUR WORK)
2.Suppose she pays off the loan in 1 years instead of 5 years. How much money will she save in interest? (SHOW YOUR WORK)

Solution 1

1.) First, you use the formula for finding the simple interest, which is I = Prt

I = PRT

I = 5,000 x 0.09 x 5

I = 450 x 5

I = $2,250

2.) Since it says 1 year instead of 5, you multiply 450 by 1. So she only pays $450. To get how much money she'll save in interest, you subtract 2,250 by 450, which equals 1,800. So, she'll save $1,800 in interest.

I = PRT

I = 5,000 x 0.09 x 5

I = 450 x 5

I = $2,250

2.) Since it says 1 year instead of 5, you multiply 450 by 1. So she only pays $450. To get how much money she'll save in interest, you subtract 2,250 by 450, which equals 1,800. So, she'll save $1,800 in interest.

Question

On a map with a scale of 2 cm = 1km, the distance from Beau's house to the beach is 4.6 centimeters. What is the actual distance?

Solution 1

So the given is 4.6 cm and you're trying to find the amount of km.

GIVEN: 2 cm = 1 km

4.6/2 = 2.3 km

GIVEN: 2 cm = 1 km

4.6/2 = 2.3 km

Solution 2

2.3

since 2 cm=1k you divide by 2

Question

Choose the correct simplification of the expression (7m3 n) 2. 14m5n3 14m6n2 49m5n3 49m6n2

Solution 1

For this case we have the following expression:

(7m ^ 3n) ^ 2

By power properties we can rewrite the expression as:

((7 ^ 2) (m ^ (3 * 2)) (n ^ 2))

Then, simplifying we have:

(49 (m ^ 6) (n ^ 2))

**Answer:**

**the correct simplification of the expression is:**

**(49 (m ^ 6) (n ^ 2))**

(7m ^ 3n) ^ 2

By power properties we can rewrite the expression as:

((7 ^ 2) (m ^ (3 * 2)) (n ^ 2))

Then, simplifying we have:

(49 (m ^ 6) (n ^ 2))

Question

The weather report says there is an 85% chance it will be very hot tomorrow. Should you get ready to use the air conditioner? Explain.

Solution 1

Yes because the probability rate is high.

Question

Mila wants to spend at least $20 on a classified ad in the newspaper. She has $12, how much does she need? I need an equation with an inequality please:) thank you!

Solution 1

X >= (at least symbol) $9 since she needs AT LEAST 20$ and she already has 12$ so 12+9>20

Question

Which expression gives the distance between the points (5, 1) and (9, -6)?

Solution 1

**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 .**

Solution 2

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.

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