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1 year ago

Which expression is equal to 6 x (3 + 8)?

Mathematics

1 answer:

forsale [732]1 year ago

4 0

$6 \times (3 + 8) \\ = (6 \times 3) + (6 \times 8)$

Answer:

(6×3)+(6×8)

Hope you could get an idea from here.

Doubt clarification - use comment section.

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I WILL GIVE BRANLIEST!!! 56yx^3-32yx+16y please help very quickly.

xxTIMURxx [149]

Answer:

8y(7x^3-4x+2)

Step-by-step explanation:

4 0

2 years ago

Solve 2x^3+7x^2-2x-1=o

Mashcka [7]

Answer:

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

Step-by-step explanation:

This is a hard one

We have to use the rational root theorem

$2x^3+7x^2-2x-1$ = 0

We have to find all the factors of a and d and put them in a fraction

$a=2\\d=-1\\\frac{1}{1,2}$

We then plug them into the equation to see if any of them work

The equation isn't true when plugging 1, but is true when plugging in 1/2

factored form of 1/2 is (2x-1)

Then we divide the original equation by (2x-1) (you can use synthetic division or long division, it would be hard to type out the process for that) to get $x^2+4x+1$

So now the equation is $(2x-1)(x^2+4x+1)$

Solve the second half of this equation using the quadratic formula to get

$\sqrt{3}-2$ and $-\sqrt{3}-2$

We already know the solution for the first half of the equation (1/2)

So the final answers are:

$x=\sqrt{3}-2, -\sqrt{3}-2, \frac{1}{2}$

8 0

2 years ago

Esther uses 6.6 pints of blue paint and white paint to paint her bedroom walls. 3 5 of this amount is blue paint, and the rest i

OverLord2011 [107]

Answer:

2 16/25 or 2.64 pints.

Step-by-step explanation:

Turn the 6.6 into a fraction for calculation purposes. you get 33/5. since 3/5 is blue paint and the question wants white paint, calculate 33/5 × 2/5. You should get 66/25 as the answer.

5 0

2 years ago

Check all that apply

lozanna [386]

Answer:

D. be congruent

Step-by-step explanation:

vertical angles are angles that are across from each other on intersecting lines and they are always congruent

3 0

2 years ago

Find the value of n in 7 times 38 plus 3 times 45 minus 56

Alex787 [66]

7 * 38 + 3*45 - 56
use order of operations
(7*38) + (3*45) - 56

266 + 135 - 56

=345

3 0

2 years ago