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3 years ago

13

What is the value of X is this problem? 2x+19

2 answers:

Gre4nikov [31]3 years ago

7 0

Since we need to find x, we need to move 19 to the other side:

2x + 19 = 0
-19 -19

Which turns into:

2x = -19

Now, we need to divide each side by 2 in order to leave x by itself:

2x = -19
—— ——
2 2

Which will get us:

x = -9.5

And that will be your answer. (Not sure if it’s correct, but I tried lol)

VashaNatasha [74]3 years ago

3 0

Answer:

6

Step-by-step explanation:

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HEELP please i dont under stand

DIA [1.3K]

The answer is A 3/10 because there is 3 blue marbles and all together there is 10

7 0

3 years ago

Read 2 more answers

What are the odds of rolling 2 dice and getting the sum of 7?

Yuliya22 [10]

Answer:

1/6

Step-by-step explanation:

favorable over total outcomes

favorable is 6

total is 36

6/36 = 1/6

6 favorable outcomes are:

(1,6), (2,5), (3,4), (4,3), (5,2), (6,1) }

total of 36 outcomes are :

(1,1), (1,2), (1,3), (1,4), (1,5), (1,6),

(2,1), (2,2), (2,3), (2,4), (2,5), (2,6),

(3,1), (3,2), (3,3), (3,4), (3,5), (3,6),

(4,1), (4,2), (4,3), (4,4), (4,5), (4,6),

(5,1), (5,2), (5,3), (5,4), (5,5), (5,6),

(6,1), (6,2), (6,3), (6,4), (6,5), (6,6)

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5 0

2 years ago

How to solve (2x+8)^2

dusya [7]

You have to foil out the problem
(2x+8)(2x+8)
4x^2+16x+16x+64
4x^2+32x+64

4 0

3 years ago

What is the value of a when we rewrite 8^x as a^-x/9

Andre45 [30]

Answer:

$a = \frac{1}{134217728}$

Step-by-step explanation:

Given

$8^x = a^{-x/9}$

Required

Find a

Take log of both sides

$log(8^x) = log(a^{-x/9})$

Apply law of logarithm

$x\ log(8) = (-x/9) log(a)$

Divide both sides by a

$log(8) = -\frac{1}{9} log(a)$

Multiply both sides by -9

$-9\ log(8) = log(a)$

Apply law of logarithm

$log(8^{-9}) = log(a)$

Cancel out log

$8^{-9} = a$

Rewrite as:

$a = 8^{-9}$

Apply law of indices

$a = \frac{1}{8^9}$

$a = \frac{1}{134217728}$

4 0

3 years ago

(2x - 3)(4 - 3x) find the product of binomials

Sedbober [7]

Answer:

6x²+17x-12

Step-by-step explanation:

(2x-3)(4-3x)

8x-6x²-12+9x

Reorder.

6x²+9x+8x-12

Combine like terms.

6x²+17x-12

---

hope it helps

8 0

3 years ago