All categories

3 years ago

Solve for x:

Mathematics

2 answers:

Len [333]3 years ago

5 0

A) Division

We can solve the problem as:

4x + 12 = 8 (Given)

4x = -4 (Subtraction)

x = -1 (Division)

We divide so we can simplify x to where it's x by it self.

Hope This Helped! Good Luck!

RUDIKE [14]3 years ago

4 0

Answer:symmetric property

Step-by-step explanation:

Im smart trust me

You might be interested in

Is the line through points P(2, –5) and Q(–5, –1) parallel to the line through points R(5, 4) and S(–2, 5)? Explain.

Irina-Kira [14]

Answer:

the answer is No

Step-by-step explanation:

Since the first line has a slope of -4/7 and the other line has a slope of -1/7. This can be shown in point slope form y-y1=m(x-x1) where m=∆y/∆x.

Through points P and Q, the point slope is represented as -1-(-5)=m(-5-2) ; 4 = -7m ; m = 4/-7. The next two points R and S can be shown in point slope as 5-4=m(-2-5) ; 1 = -7m ; m =1/-7. With the fact that parallel lines must have equal slopes, these two lines cannot be parallel because -4/7≠-1/7

3 0

4 years ago

A professor receives, on average, 24.7 emails from students the day before the midterm exam. To compute the probability of recei

MaRussiya [10]

Answer:

Let X the random variable that represent the number of emails from students the day before the midterm exam. For this case the best distribution for the random variable X is $X \sim Poisson(\lambda=24.7)$

The probability mass function for the random variable is given by:

$f(x)=\frac{e^{-\lambda} \lambda^x}{x!} , x=0,1,2,3,4,...$

The best answer for this case would be:

C. Poisson distribution

Step-by-step explanation:

The probability mass function for the random variable is given by:

$f(x)=\frac{e^{-\lambda} \lambda^x}{x!} , x=0,1,2,3,4,...$

And f(x)=0 for other case.

For this distribution the expected value is the same parameter $\lambda$

$E(X)=\mu =\lambda$

And for this case we want to calculate this probability:

$P(X \geq 10)$

The best answer for this case would be:

C. Poisson distribution

5 0

3 years ago

Read 2 more answers

3. Jim bought a new pair of glasses. The lenses had six sides. The lenses were in the shape of a A. hexagon. B. heptagon. C. qua

Vladimir [108]

Best Answer: 6 sides is a hexagon.

the spoke of a wheel is like a radius. Circumference is equal to 2πr so r = 42/2π ≈ 6.69 inches, ans. D.

that's it! ;)

5 0

3 years ago

What is the slope of the equation y = 3/4x + 8? A. 3/4 B. 8 C. 3 D. 4

steposvetlana [31]

Answer:

Step-by-step explanation:

y = m x + b

y = 3 /4 x − 8

Rewrite in slope-intercept form.

y = 3 /4 x − 8

Using the slope-intercept form, the slope is 3 /4 .

m =3 /4

6 0

4 years ago

What is 25% of 60 dhhsbebebebrbrbrnr

weqwewe [10]

Answer:

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers