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Vaselesa [24]
3 years ago
9

Which equation is a proportion?

Mathematics
1 answer:
stellarik [79]3 years ago
4 0

Answer:

C) 5/8=20/32

Step-by-step explanation:

Because 5*4=20 and 8*4=32.

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Which of the following would be the most logical first step to solving this
NikAS [45]

Answer:

D is correct option

Step-by-step explanation:

The correct option is D.

The standard quadratic equation is ax²+bx+c=0

Where a and b are coefficients and c is constant.

It means that constant are on the L.H.S and there is 0 on the right hand side.

Therefore to make it a quadratic equation first of all you have to add 11 at both sides so that the R.H.S becomes 0.

The given equation is:

2x2-x+ 2 = -11

If we add 11 on both sides the equation will be:

2x2-x+ 2 +11= -11+11

2x^2-x+13=0

Thus the correct option is D

You can further solve it by applying quadratic formula....

8 0
3 years ago
In a right triangle sin A=
kherson [118]

Answer:

sinA=\frac{opposite}{hypotenuse}

Step-by-step explanation:

Soh-cah-toa is a great way to remember:

sin=\frac{opposite}{hypotenuse}\\ cin=\frac{adjacent}{hypotenuse}\\ tan=\frac{opposite}{adjacent}

You just remember the first letters : sine= opposite/hypotenuse , for example.

6 0
3 years ago
Read 2 more answers
What is 3/4 divided by 1/8? SHOW your reasoning.
evablogger [386]

Answer:

6

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
A physical fitness association is including the mile run in its secondary- school fitness test. the time for this event for boys
liberstina [14]

Answer:

<u>The probability that a randomly selected boy in school can run the mile in less than 348 seconds is 1.1%.</u>

Step-by-step explanation:

1. Let's review the information provided to us to answer the question correctly:

μ of the time a group of boys run the mile in its secondary- school fitness test  = 440 seconds

σ of the time a group of boys run the mile in its secondary- school fitness test = 40 seconds

2. Find the probability that a randomly selected boy in school can run the mile in less than 348 seconds.

Let's find out the z-score, this way:

z-score = (348 - 440)/40

z-score = -92/40 = -2.3

Now let's find out the probability of z-score = -2.3, using the table:

p (-2.3) = 0.0107

p (-2.3) = 0.0107 * 100

p (-2.3) = 1.1% (rounding to the next tenth)

<u>The probability that a randomly selected boy in school can run the mile in less than 348 seconds is 1.1%.</u>

4 0
3 years ago
Read 2 more answers
Equity, by definition, is
Yuri [45]

Answer:

Equity is being fair or impartial (being fair to a rival/opposite opinion) OR is the value of shares provided by a company.

Hope that helped!

6 0
3 years ago
Read 2 more answers
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