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vladimir2022 [97]

2 years ago

10

8x^3-6x^2+13x-4 Please simplify this expression and tell me how u simplified it.

1 answer:

jeka942 years ago

5 0

This expression is already simplified.

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5-7y/2+4y equals -8/7

Ksenya-84 [330]

Answer:

$\boxed{y = 3}$

Step-by-step explanation:

$= > \frac{5 - 7y}{2 + 4y} = - \frac{8}{7} \\ \\ = > 7(5 - 7y) = - 8(2 + 4y) \\ \\ = > (7 \times 5) - (7 \times 7y) = ( - 8 \times 2) + ( - 8 \times 4y) \\ \\ = > 35 - 49y = - 16 - 32y \\ \\ = > 35 - 49y + 32y = - 16 \\ \\ = > 35 - 17y = - 16 \\ \\ = - 17y = - 16 - 35 \\ \\ = > \cancel{- }17y = \cancel{- } 51 \\ \\ = > 17y = 51 \\ \\ = > y = \frac{51}{17} \\ \\ = > y = 3$

4 0

3 years ago

A right triangle has one leg with a length of 48 and a hypotenuse with a length of 80 what is the length of the other leg

Reptile [31]

A^2+b^2= c^2

48^2+b^2= 80^2

2304+b^2= 6400

Subtract 2304 from both sides.

b^2= 4096

Find the square root.

b= 64

I hope this helps!
~kaikers

7 0

3 years ago

the perimeter of a triangle is 29cm. the three sides lengths (all measured in cm) of the triangle are 8, 12 and x. Write and sol

Tasya [4]

Step-by-step explanation:

We have 8 + 12 + x = 29.

Solving, we get x + 20 = 29, x = 9.

3 0

2 years ago

Read 2 more answers

Cot? 2x + cos2x + sin’ 2x = csc? 2x<br> Need help with 40

kkurt [141]

Answer:

$\rule{100mm}{0.1mm}$

$\cot^2(2x)+\cos^2(2x)+\sin^2(2x)=\csc^2(2x)$

$\dfrac{\cos^2(2x)}{\sin^2(2x)} +[(\cos^2(2x)+\sin^2(2x)]=\csc^2(2x)$

$\dfrac{\cos^2(2x)}{\sin^2(2x)} +1=\csc^2(2x)$

$\dfrac{\cos^2(2x)+\sin^2(2x)}{\sin^2(2x)}=\csc^2(2x)$

$\dfrac{1}{sin^2(2x)} =\csc^2(2x)$

$\boxed{\csc^2(2x)=\csc^2(2x)}$ ✔

$\rule{100mm}{0.1mm}$

4 0

3 years ago

HURRY I WILL GIVE BRAINLIEST

bezimeni [28]

36%=36/100=0,36

0,36•47677= 17 163,74

So there's around 17 164 species treatensd with extinction

7 0

3 years ago