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2 years ago

Which expression is equivalent to 4/9x7?

Mathematics

1 answer:

LiRa [457]2 years ago

8 0

Is there an answer key?

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Solve for x . <br> X+9 .. 2x-3 .

nadezda [96]

X + 9 = 2x - 3
<u>-x    -x </u>
   9 = x - 3
<u>   +3    +3</u>
   12 = x

6 0

3 years ago

Question 2

BabaBlast [244]

The correct answer is choice d because you would divide x by 2 to get 70. then you do the same with y so 35/2 = 17.5

7 0

2 years ago

Find the missing side length… please help

My name is Ann [436]

Answer:

So let's consider the triangle
$\tan(46) = \frac{17}{x}$
Cross multiply
$tan(46) \times x = 17$
$x = 16.42$
I do quizzes and exams lmk if your interested!

7 0

3 years ago

Convert the complex number z = -12 + 5i from rectangular form to polar form.

Paha777 [63]

Answer:

$z=13(\cos 157\degree +i\sin157\degree)$

Step-by-step explanation:

The given complex number is

$z=-12+5i$

The polar form of this complex number is;

$z=r(\cos \theta +i\sin \theta)$ , where

$r=\sqrt{(-12)^2+5^2}$

$r=\sqrt{144+25}=\sqrt{169}=13$

and

$\theta =\tan^{-1}(\frac{5}{-12})$

This implies that;

$\theta=157\degree$ to the nearest degree.

Hence the polar form is

$z=13(\cos 157\degree +i\sin157\degree)$

7 0

3 years ago

If X is a random variable denoting number of defective items, which discrete probability distribution is appropriate

Lesechka [4]

Considering that for each item, there are only two possible outcomes, and the probability of an item being defective is independent of any other item, the binomial distribution is appropriate.

<h3>What is the binomial probability distribution?</h3>

It is the probability of <u>exactly x successes on n repeated trials, with p probability</u> of a success on each trial.

More can be learned about the binomial distribution at brainly.com/question/24863377

6 0

1 year ago