MATHEMATICS HIGH SCHOOL

Convert 386 milligrams to grams.

0.386 g
3.86 g
38.6 g
3,860 g

Answers

Answer 1
Answer: g= mg/1000 
x g= 386mg/1000
x = 0.386g
Answer 2
Answer:

Answer:

I think it's A. Hope this help's!

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Tomas learned that the product of the polynomials (a + b)(a2 – ab + b2) was a special pattern that would result in a sum of cubes, a3 + b3. His teacher put four products on the board and asked the class to identify which product would result in a sum of cubes if a = 2x and b = 1.Which product should Tomas choose? (2x + 1)(2x2 + 2x – 1) (2x + 1)(4x3 + 2x – 1) (2x + 1)(4x2 – 2x + 1) (2x + 1)(2x2 – 2x + 1)
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Eight days = _ hours
Please tell me

Answers

In order to answer this question, you need to know how many hours
there are in one day.  After that, it's a piece-o-cake.

                       1 day  =  24 hours .

Now you can make a table:

1 day  =  24 hours
2 days = 48 hours
3 days = 72 hours
4 days = 96 hours
5 days = 120 hours
6 days = 144 hours
7 days = 168 hours
8 days = 192 hours
9 days = 216 hours
10 days = 240 hours
1 day = 24 hours. 
8 days equal 192 hours (multiply 8 days by 24). 

Or another way to think about it:
1 day          8 days
------------ = ----------
24 hours      x hours

Cross multiplying,
x = 8*24
x = 192

The function p(x)=-2(x-9)^2+100 is used to determine the profit on T-shirts sold for x dollars. What would the profit from sales be if the price of the T-shirts were $15 a piece?A.)$15
B.)$28
C.)$172
D.)$244​

Answers

Answer:

C. $172

Step-by-step explanation:

You plug in $15 into the problem and solve from there.

A firefighter climbed up to the middle of a ladder to see if there was any fire on the second floor of a building and there was none; he then climbed up 10 more steps and saw some smoke so he came back down 14 steps and waited for 5 seconds to check his equipment. He then climbed 20 steps all the way to the top of the ladder and got off on the roof. How many steps are there on the ladder?

Answers

Answer:

32

Step-by-step explanation:

Let there be n number of steps on the ladder.

First, the firefighter climbed up to the middle of a ladder. so to reach the middle of the ladder he must have climbed \frac n 2 steps.

Then, after climbed 10 more steps, the total number of stairs from the ground he climbed = \frac n 2 +10.

Then, he came back down 14 steps, so the total number of stairs from the ground he climbed = \frac n 2 +10 -14=\frac n 2 -4.

Remaining steps = n - \left(\frac n 2 -4 \right)=\frac n 2 +4

Given that he climbed 20 steps all the way to the top of the ladder which is equal to the remaining steps. So,

\frac n 2 +4 = 20

\Rightarrow \frac n 2 = 20-4=16

\Rightarrow n = 16 * 2 = 32.

Hence, there are 32 steps on the ladder.

Find the distance between (-1, 4) and (3, 1).

Answers

The Distance is 5, I believe 
4, -3 is the answer to Distance 

In a library where the ratio of men to women is 1 to 1, of the total members are men.

Answers

The men are in equal amount to women if the ratio is 1:1

Again. Did I solve the Matrices correctly. By the way it's multiplying matrices.

Answers

I just used my Ti 84

it is correct except for 3rd number

should be
-3
-6
-16
8
Yup, it looks good to me.
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