3 years ago

Simplify the expression b+2/b^2-4

Mathematics

2 answers:

Lubov Fominskaja [6]3 years ago

8 0

3b because b^2-4= 1/b. So 2/1/b= 2b b+2b = 3b

denpristay [2]3 years ago

6 0

b + 2
b² - 4
b^-1 - 1/2
 1 + 1
b^1 - 2
 2 
b^1 - 2

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PLEASE HELP!!!!

frozen [14]

A) $\frac{2 \frac{1}{4}}{ \frac{1}{2}}$
b) $\frac{1}{2}$ • 2 = 1
so $\frac{9}{4}$ • 2 = $\frac{9}{2}$ cups (which is $4 \frac{1}{2}$ )

5 0

3 years ago

PLEASEE HELP.!! ILL GIVE BRAINLIEST.!! *EXTRA POINTS* DONT SKIP:((

Lubov Fominskaja [6]

Answer:

5 and 6 Your Answer is (5,8)

Hope It Helped :)

3 0

3 years ago

Solve by elimination x-5y=35 and 3x-6y=51

IrinaVladis [17]

Answer: x=5 y=-6

(5,-6)

Step-by-step explanation:

Solve by elimination

$\begin{bmatrix}x-5y=35\\ 3x-6y=51\end{bmatrix}$

multiply x-5y=35 by 3

= 3x-15y=105

$\begin{bmatrix}3x-15y=105\\ 3x-6y=51\end{bmatrix}$

$3x-6y=51$

- $\underline{3x-15y=105}$

$9y=-54$

divide 9 on both sides

y= -6

Now solve for x

you must plug in -6 for y in either equations

i plugged in -6 for y in 3x-15y=105

$3x-15\left(-6\right)=105$

$3x+15\cdot \:6=105$

$15\cdot \:6=90$

$3x+90=105$

subtract 90 on both sides

$3x=15$

$\frac{3x}{3}=\frac{15}{3}$

$x=5$

Please mark brainliest

3 0

4 years ago

Read 2 more answers

Help i will vote brainliest answer

mestny [16]

I am not sure
but 90 per cent its option b

7 0

3 years ago

Read 2 more answers

3 ones - 22 tenths equal

jeka57 [31]

The answer is 3.00-0.22=2.78

8 0

3 years ago