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sladkih [1.3K]
3 years ago
7

If a = 7, b = 3, and c = 5, then 4a − 3c =

Mathematics
1 answer:
serious [3.7K]3 years ago
8 0

4a-3c=4×a-3×c

=4×7-3×5

=28-15

=13 this is the correct answer

I hope this answer help you

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Math question for 30 points please answer correctly
joja [24]

Answer:

D. The rate of change for function B is greater than the rate of change for function A

Step-by-step explanation:

Function a has a slope (aka rate of change) of 3/3

I know this because we start at (-3, 0) then finish at (0, 3)

We added 3 to both the x value and the y value.

3/3 = 1, so we have a rate of change of 1 for function A

Now that we know this, we can write the equation out into slope intercept form.

We can get y = x + 3

The equation for function B is y = 5x + 5

The slope for function B is greater, therefore the rate of change for function B is greater than the rate of change for function A

4 0
3 years ago
Determine what type of study is described. Explain. Researchers wanted to determine whether there was an association between hig
victus00 [196]

Answer:

Experimental Study

Step-by-step explanation:

In an experimental study, the researchers involve always produce and intervention (in this case they were asked whether their tendency was to express or to hold in anger and other emotions. The degree of suppression of emotions was rated on a scale of 1 to 10) and study the effects taking measurements.

These studies are usually randomized ie subjects are group by chance.

As opposed to observation studies, where the researchers only measures what was observed, seen or hear without any intervention on their parts.

3 0
4 years ago
Flying against the wind, an airplane travels 4340 kilometers in 7 hours. Flying with the wind, the same plane travels 3120 kilom
Over [174]

The rate of the wind is given to be 210 the rate of the plane in mid air is given as 830

<h3>Howe to solve for the rate of the plane and wind</h3>

In 7 hours the kilometer traveled =  4340

P + W = 4340/7

= 620

P-W = 3120/3 hours

= 1040

2p = 1040 + 620

= 1660

p =830

W = 1040 - 830

= 210

Hence the rate of the wind is given to be 210 the rate of the plane in mid air is given as 830

Read more on rate here

brainly.com/question/24304697

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3 0
2 years ago
Solve this trigonometry question, please by an easy method.​
podryga [215]
  • tan39=6/x
  • x=6/tan39
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And

  • sin39=6/y
  • y=6/sin39
  • y=9.5
7 0
2 years ago
Read 2 more answers
Find the length of side x in the simplest radical form with a rational denominator​
barxatty [35]

Answer: 10√3 / 3

Step-by-step explanation:

cos 30 = 5 / x

x = 5 / cos 30

= 5 / √3 / 2

= 10 √3

= 10√3 / 3

3 0
3 years ago
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