MATHEMATICS HIGH SCHOOL

How do I solve this problem 7x<14 and 1-x<4

Answers

Answer 1
Answer: x<2 and x>-3 => x∈(-oo, 2) and x ∈(-3,+oo )=> x∈(-3, 2).
Answer 2
Answer:

7x < 14

x < 14/7

x < 2

x ∈ (-oo ; 2)

1 - x < 4

1 - 4 < x

- 3 < x

x > - 3

x ∈ (- 3 ; + oo)

_____(.__.__.__.__.__.)____

-oo   - 3             0         2

x ∈ (- 3 ; 2 )

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Solve this..➕+ ➕ + ➕+ ➕=30
Fill the boxes using (1, 3, 5, 7, 9, 11, 13, 15)
U can also repeat the numbers..

Answers

These are all possible combinations:
1 , 1 , 13 , 15
1 , 3 , 11 , 15
1 , 3 , 13 , 13
1 , 5 , 9 , 15
1 , 5 , 11 , 13
1 , 7 , 7 , 15
1 , 7 , 9 , 13
1 , 7 , 11 , 11
1 , 9 , 9 , 11
3 , 3 , 9 , 15
3 , 3 , 11 , 13
3 , 5 , 7 , 15
3 , 5 , 9 , 13
3 , 5 , 11 , 11
3 , 7 , 7 , 13
3 , 7 , 9 , 11
3 , 9 , 9 , 9
5 , 5 , 5 , 15
5 , 5 , 7 , 13
5 , 5 , 9 , 11
5 , 7 , 7 , 11
5 , 7 , 9 , 9
7 , 7 , 7 , 9
There can be a lot many solutions for the above question
some of them are
9+11+5+5=30
it can also be solved as 
15+5+5+5=30
also
13+7+5+5=30

Yh plss I need an answer to this question plss​

Answers

Question:

A boy makes a cone of diameter 28 cm without a base. He then cuts a smaller cone of diameter 20 cm from the cone. He used the bottom part as a lampshade. If the height of the lampshade is 11cm,

(a) find the volume of the whole cone.

(b) find in cm2, the area of the material used to make the lampshade.

Answer:

(a) V ≈ 16420.1

(b) A ≈ 2690.1 cm²

Step-by-step explanation:

Solution for (a)

Formula: The formula for the volume of a cone is V = 1/3 hπr².

V= πr² h/3 = π × 28/ 2 × 20/  3 ≈ 16420.0576

16420.0576 in nearest tenths is 16420.1

Therefore, the volume of the whole cone is 16420.1 cm²

Solution for (b)

Formula: A = πrl + πr2.

l = r² + h²

Solving for A

A = πr (r + h²+ r²) = π × 20 × (20 + 112 + 202) ≈ 2690.80077

2690.80077 In nearest tenths, is 2690.1

Therefore, the area of the material used to make the lampshade is 2690.1 cm²

Evaluate the expression 15x + 4 for x = −1 1/2 (20 points + Brainliest for right answer)

Answers

Answer:

11/-30 Hope this helped :)

Step-by-step explanation:

15x + 4 = -1  1/2

15x = -5  1/2

x = 11/-2*1/15

x = - 11/-30

Please HELP me solve: the museum's show for July features 30 oil paintings by different artists. All artists show the same number of paintings and each artist shows more than 1 painting. How many artists could be featured in the show

Answers

if  each artist shows more than 1 painting.so minimum number of painting per artist is 2.
so if every artist show same number of painting so maximum number of artists is 30/2 = 15

What is the value of root 12+root 12+root12....
...............to infinite

Answers

x=root(12+root(12+root(...)))
x^2=12+root(12+root(12+root(...)))
x^2=12+x
x^2-x-12=0
(x+3)(x-4)=0
X=4

If a company has 150 shares of common stock and $15,000.00 to be distributed to its holders, how much would each share receive?

Answers

If there are a total of 150 shares of common stock that total $15,000.00 total, you will need to divide the total price by the number of shares to determine the price per share. In this example, it would be as follows: $15,000.00/150 shares = $100/share. Each share would receive $100.
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