All categories

3 years ago

Find the sum of -3a + 2 and 5a - 3

Mathematics

2 answers:

Anon25 [30]3 years ago

8 0

Answer

-1(3a-2)

Step-by-step explanation:

Effectus [21]3 years ago

7 0

Answer:

Step-by-step explanation:

(-3a + 2 ) + ( 5a - 3)

= -3a + 5a + 2- 3

= 2a + ( -1)

= 2a-1

You might be interested in

Can someone help me find the equivalent expressions to the picture below? I’m having trouble

miss Akunina [59]

Answer:

Options (1), (2), (3) and (7)

Step-by-step explanation:

Given expression is $\frac{\sqrt[3]{8^{\frac{1}{3}}\times 3} }{3\times2^{\frac{1}{9}}}$ .

Now we will solve this expression with the help of law of exponents.

$\frac{\sqrt[3]{8^{\frac{1}{3}}\times 3} }{3\times2^{\frac{1}{9}}}=\frac{\sqrt[3]{(2^3)^{\frac{1}{3}}\times 3} }{3\times2^{\frac{1}{9}}}$

$=\frac{\sqrt[3]{2\times 3} }{3\times2^{\frac{1}{9}}}$

$=\frac{2^{\frac{1}{3}}\times 3^{\frac{1}{3}}}{3\times 2^{\frac{1}{9}}}$

$=2^{\frac{1}{3}}\times 3^{\frac{1}{3}}\times 2^{-\frac{1}{9}}\times 3^{-1}$

$=2^{\frac{1}{3}-\frac{1}{9}}\times 3^{\frac{1}{3}-1}$

$=2^{\frac{3-1}{9}}\times 3^{\frac{1-3}{3}}$

$=2^{\frac{2}{9}}\times 3^{-\frac{2}{3} }$ [Option 2]

$2^{\frac{2}{9}}\times 3^{-\frac{2}{3} }=(\sqrt[9]{2})^2\times (\sqrt[3]{\frac{1}{3} } )^2$ [Option 1]

$2^{\frac{2}{9}}\times 3^{-\frac{2}{3} }=(\sqrt[9]{2})^2\times (\sqrt[3]{\frac{1}{3} } )^2$

$=(2^2)^{\frac{1}{9}}\times (3^2)^{-\frac{1}{3} }$

$=\sqrt[9]{4}\times \sqrt[3]{\frac{1}{9} }$ [Option 3]

$2^{\frac{2}{9}}\times 3^{-\frac{2}{3} }=(2^2)^{\frac{1}{9}}\times (3^{-2})^{\frac{1}{3} }$

$=\sqrt[9]{2^2}\times \sqrt[3]{3^{-2}}$ [Option 7]

Therefore, Options (1), (2), (3) and (7) are the correct options.

6 0

3 years ago

In a Science class students made rockets out of empty 2-liter bottles. When launched, Karen's rocket reached a height of 12 and

velikii [3]

13 9/10

This is just a math equation. Just add 12 1/2 to 1 2/5 and remember that the bottoms of fractions have to be the same and if you change the bottoms, you have to change the top just as much :)

8 0

3 years ago

Read 2 more answers

Help me with this please

OleMash [197]

Answer:

x=4

Step-by-step explanation:

8 0

3 years ago

Use the figure and information below to find the length of each line segment

Hitman42 [59]

Answer:

7. 6

8. 6

9. 12

10. 6

11. 12

12. 24

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

A store sells posters. Each poster costs the same amount. During a sale, the store reduces the price of each poster by $1. 25. C

grandymaker [24]

Answer:

4.44

Step-by-step explanation:

I used a calculater to divide $17.76 by 4

4 0

3 years ago

Read 2 more answers