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3 years ago

0.4(2-q=0.2(q+7) hurry please

Mathematics

1 answer:

Lerok [7]3 years ago

5 0

Answer:

q=-1

Step-by-step explanation:

.8-.4q=.2q+1.4

-.2q -.2q

.8-.6q=1.4

-.8 -.8

-.6q= 0.6

/-.6 /-.6

q= -1

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Help needed !!! Use synthetic division to find the quotient and remainder!!!

Makovka662 [10]

Answer:

The answer is D.

Step-by-step explanation:

....................................................

3 0

3 years ago

Read 2 more answers

Find a parametric representation for the part of the cylinder y2 + z2 = 49 that lies between the planes x = 0 and x = 1. x = u y

sweet-ann [11.9K]

Answer:

The equation for z for the parametric representation is $z = 7 \sin (v)$ and the interval for u is $0\le u\le 1$ .

Step-by-step explanation:

You have the full question but due lack of spacing it looks incomplete, thus the full question with spacing is:

Find a parametric representation for the part of the cylinder $y^2+z^2 = 49$ , that lies between the places x = 0 and x = 1.

$x=u\\ y= 7 \cos(v)\\z=? \\ 0\le v\le 2\pi \\ ?\le u\le ?$

Thus the goal of the exercise is to complete the parameterization and find the equation for z and complete the interval for u

Interval for u

Since x goes from 0 to 1, and if x = u, we can write the interval as

$0\le u\le 1$

Equation for z.

Replacing the given equation for the parameterization $y = 7 \cos(v)$ on the given equation for the cylinder give us

$(7 \cos(v))^2 +z^2 = 49 \\ 49 \cos^2 (v)+z^2 = 49$

Solving for z, by moving $49 \cos^2 (v)$ to the other side

$z^2 = 49-49 \cos^2 (v)$

Factoring

$z^2 = 49(1- \cos^2 (v))$

So then we can apply Pythagorean Theorem:

$\sin^2(v)+\cos^2(v) =1$

And solving for sine from the theorem.

$\sin^2(v) = 1-\cos^2(v)$

Thus replacing on the exercise we get

$z^2 = 49\sin^2 (v)$

So we can take the square root of both sides and we get

$z = 7 \sin (v)$

4 0

3 years ago

The probability that event M will not occur is 0.8 and the probability that event R will not occur is 0.6. If events M and R can

ololo11 [35]

Answer:

11/25 The right answer is not a part of the options given.

Step-by-step explanation:

Given;

Probability that event M will not occur = 0.8

Probability that event R will not occur = 0.6

Then the ;

Probability that event M will occur = 1 - 0.8 = 0.2

Probability that event R will occur = 1 - 0.6 = 0.4

If events M and R cannot both occur, probability that either event M or event R will occur

= probability that M occurs and R does not or the probability that R occurs and M does not

= 0.2 × 0.6 + 0.4 × 0.8

= 0.12 + 0.32

= 0.44

= 11/25

6 0

3 years ago

Theoretical Probability - Guided Practice#1 - All of the letters in the word Mississippi are written on separate pieces of paper

Naily [24]

The probability = outcome/total outcomes

The total of the outcomes is the total number of the letters of the given word, then

The total outcomes = 11

The outcome is the number of letter "s" in the word

The outcome = 4, then

The probability of "s" is

$P(s)=\frac{4}{11}$

To change it to percent multiply it by 100% and round it to the nearest 1 decimal place

$\begin{gathered} P(s)=\frac{4}{11}\times100 \\ P(s)=36.4 \end{gathered}$

The answer is 36.4%

Answer C

5 0

1 year ago

Please fill in the blanks:

kati45 [8]

Step-by-step explanation:

y = mx + b

Your equation is y = 3/5x, which means you're "missing" the B

Whichhhhh, just means you're starting at (0,0)

Now, m represents the slope. So your slope was given right off the bat, 3/5.
You start at (0,0) and you count up 3, and right 5. Or you could do down 3 and left 5
This gives you a line with a slope of 3/5

Hopefully my drawing kind of explains it better

5 0

3 years ago