3 years ago

What is the value of 2(-6) + 3(7)

Mathematics

2 answers:

tino4ka555 [31]3 years ago

7 0

The value would be 9

Andrej [43]3 years ago

3 0

The value would be 9

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What is the side length,s,of the square?enter your answer in the box

AlladinOne [14]

B a perfect cube because 5 cubed is 125

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2 years ago

Va rog e urgent am nevoie de raspuns

Lady_Fox [76]

Answer: 4

<u>Explanation:</u>

f(x) = 2x - 1

f(√2) = 2√2 - 1

f(1) = 2(1) - 1

= 2 - 1

= 1

f(√3) = 2√3 - 1

*******************************************************

$\frac{f(\sqrt{2})-f(1)}{\sqrt{2}-1} +\frac{f(\sqrt{3})-f(\sqrt{2})}{\sqrt{3}-\sqrt{2}}$

= $\frac{(2\sqrt{2}-1)-1}{\sqrt{2}-1} +\frac{(2\sqrt{3}-1)-(2\sqrt{2}-1)}{\sqrt{3}-\sqrt{2}}$

= $\frac{2\sqrt{2}-2}{\sqrt{2}-1} +\frac{2\sqrt{3}-2\sqrt{2}}{\sqrt{3}-\sqrt{2}}$

= $\frac{2\sqrt{2}-2}{\sqrt{2}-1}(\frac{\sqrt{2}+1}{\sqrt{2}+1})+\frac{2\sqrt{3}-2\sqrt{2}}{\sqrt{3}-\sqrt{2}}(\frac{\sqrt{3}+\sqrt{2}}{\sqrt{3}+\sqrt{2}})$

= $\frac{4+2\sqrt{2}-2\sqrt{2}-2}{2 - 1} + \frac{6 +2\sqrt{6}-2\sqrt{6}-4}{3-2}$

= $\frac{2}{1} +\frac{2}{1}$

= 4

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2 years ago

I need to see the steps for simplifying 3(m-5)+m

grigory [225]

Answer:

4m - 15

Step-by-step explanation:

a( x + y) = ax + ay

$3( m - 5 ) + m\\\\3m - 15 + m \\\\4m - 15$

4 0

3 years ago

Read 2 more answers

write the equation of a line that is perpendicular to the line y=-3/7-15 and that passes through the point (9,2)

SashulF [63]

Answer:

Step-by-step explanation:

First substitue the coordinates to the equation so

x=9, y=2

you would get

2=-3/7(9) + b

we put b because we are trying to find the new slope

multiply the two numbers above

2=-3/6/7 + b

subtract the whole number from both sides

b= 5/6/7

in equation would be

y= -3/7 + 5/6/7

Let me know if there is an error.

8 0

3 years ago

Can i have the answers plz

AleksAgata [21]

anna plis jangan tanya saya 1×7=7

4 0

3 years ago