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3 years ago

What is the value of x in the equation below? 12 – 2(x-1)=6

Mathematics

2 answers:

umka21 [38]3 years ago

8 0

X=-2
You would distribute the -2 and Zoe 1 and 1*-2=-2

JulijaS [17]3 years ago

5 0

X=25 in this equation. But if u divide by 12 it’s -25

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Use properties of addition to evaluate the expression. (−64)+((−36)+20) Enter your answer in the box.

IrinaK [193]

(−64)+((−36)+20) simplify "()" first
(−64)+(-16) now "add" remaining #s
= -80

6 0

3 years ago

Read 2 more answers

If y is proportional to the sqaure root of x and y equal x when x equal 5,evaluate y when x eqaul 9.

Law Incorporation [45]

Answer:

$y = 3\, \sqrt{5}$ when $x = 9$ .

Step-by-step explanation:

The question states that $y$ is proportional to $\sqrt{x}$ . In other words, there is a constant $a$ ( $a \ne 0$ ) such that $y = a\, \sqrt{x}$ for all $x \ge 0$ .

The question also states that $y = x$ when $x = 5$ . Make use of this equality to find the value of $a$ .

Since $x = 5$ and $y = x$ , it must be true that $y = 5$ . Substitute $x = 5\!$ and $y = 5\!$ into the equation $y = a\, \sqrt{x}$ and solve for $a$ :

$5 = a\, \sqrt{5}$ .

$\begin{aligned}a &= \frac{5}{\sqrt{5}} \\ &= \sqrt{5}\end{aligned}$ .

Thus, $y = \sqrt{5}\, (\sqrt{x})$ for all $x \ge 0$ .

Substitute in the value $x = 9$ to find the corresponding value of $y$ :

$\begin{aligned} y &= \sqrt{5} \, (\sqrt{9}) \\ &= \sqrt{5} \times 3 \\ &= 3\, \sqrt{5}\end{aligned}$ .

6 0

2 years ago

Compute the conditional probabilities P(A|B) and P(B|A).

Oksanka [162]

Answer:

Step-by-step explanation:

Good evening ,

P(A|B) = P(A∩B)/P(B)

P(B|A) = P(A∩B)/P(A)

6 0

3 years ago

GEOMETRY. PLEASE HELP. I'M STUMPED!!!

tatiyna

Given the triangles ABC and PQR.
Angle A = Angle P
Angle B = Angle Q
Angle C = Angle R

Angle B = 3v+4
Angle Q = 8v-6
Let's find v

3v+4 = 8v-6
-5v = -10
v = 2

Angle B = 3v + 4
Angle B = 3(2) + 4
Angle B = 10.

The correct answer is letter C. 10

8 0

3 years ago

3) Divide x3 + 4x2 – 3x – 12 by (x + 4)

alex41 [277]

Answer:

Factor the numerator and denominator and cancel out the common factors.

x ^2 − 3 is your final answer.

Step-by-step explanation:

Hope that this helps you out! :)

If you have any questions please put them in the comment section below this answer.

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7 0

2 years ago