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2 years ago

Im struggling with this question and i need help solving and explaining how i got it

Mathematics

2 answers:

Rama09 [41]2 years ago

8 0

Step-by-step explanation:

4x-1=9x-1-5x

4x+5x-9x=-1+1

9x-9x=0

0=0

When a positive number crossed the equal sign it becomes negative and vice versa

For example:1=2w

-2w= -1

nignag [31]2 years ago

3 0

$4x-1=9x-1-5x$

$4x-9x+5x=-1+1$

$-5x+5x=-1+1$

$0=0$

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<img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D%20%2B1%3D3%5C%5C" id="TexFormula1" title="\sqrt{x} +1=3\\" alt="\sqrt{x} +1=3\\

Eduardwww [97]

Answer:

x = 4

Step-by-step explanation:

√x + 1 = 3

√x = 3 - 1

√x = 2

(√x)² = (2)²

x = 4

4 0

2 years ago

How do you divide 270 into 3000

chubhunter [2.5K]

3000
/ 270
______
11.111111111111111111111111r

r = reoccurring

4 0

2 years ago

I need help <br> 8 1/4 x 4 1/2 x 6 1/2

Vesnalui [34]

Answer:

$241\frac{5}{16}$

Step-by-step explanation:

6 0

2 years ago

Use the distributive property to factor the expression. 12xy + 28xz

soldier1979 [14.2K]

Answer:

The factored equation would be 4x(3y + 7z)

Step-by-step explanation:

In order to find this, look for the greatest common factor and pull it out. Since both have factors of 4 and both have an x, we pull those out. We then divide each term by 4x to get what is left over.

6 0

2 years ago

Read 2 more answers

The diagram shows a solid shape.

Stolb23 [73]

Answer:

$756\pi$

Solution,

Volume of cone=270 pi cm^3

$\frac{1}{3} \pi \: {r}^{2} = 270\pi \\ or \: {r}^{2} \times 10 = 270 \times 3 \\ or \: {r}^{2} \times 10 = 810 \\ or \: {r}^{2} = \frac{810}{10} \\ or \: {r}^{2} = 81 \\ or \: r = \sqrt{81} \\ or \: r = \sqrt{ {9}^{2} } \\ r = 9 \: cm$

Volume of semisphere:

$\frac{2}{3} \pi {r}^{3} \\ = \: \frac{2}{3} \times \pi \times 9 \times 9 \times 9 \\ = 486\pi$

Total:

$270\pi + 486\pi \\ = 756\pi$

hope this helps...

Good luck on your assignment..

6 0

2 years ago