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Goryan [66]
3 years ago
12

State the first 3-digit multiple of 7​

Mathematics
1 answer:
Elis [28]3 years ago
5 0
Da answer is 7, 14, 21
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to make fruit punch ,you need 3 cups of grape juice for every 5 cups of apple juice. if you have 15 more cups of apple juice ,ho
zepelin [54]
You'd get a total 24 cups, 3/5=9/15. 9+15=24
6 0
3 years ago
A company determines that monthly sales​ S(t), in thousands of​ dollars, after t months of marketing a product is given by ​S(t)
patriot [66]

Answer: a) S'(1) = 136; S'(2) = 104; S'(4) = 76;

b) S''(1) = -38; S''(2) = -26; S''(4) = -2

Step-by-step explanation:

a) S' means first derivative;

\frac{d}{dt}(6t³ - 45t² +180t +130) = 6t² - 50t + 180

S'(1) = 6.1² - 50.1 + 180

S'(1) = 136

S'(2) = 6.2² - 50.2 + 180

S'(2) = 104

S'(4) = 6.4² - 50.4 + 180

S'(4) = 76

b) S'' is the second derivative of S:

\frac{d^2}{dt^2}(6t² - 50t + 180) = 12t - 50

S''(1) = 12.1 - 50

S''(1) = -38

S''(2) = 12.2 - 50

S"(2) = -26

S"(4) = 12.6 - 50

S"(4) = -2

c) Derivative is the rate of change of a function. The first derivative is the slope of the tangent line to the graph if the function in a determined point, while the second derivative measures how the rate of change is changing.

Analysing the values, we can conclude that the sales of the product after t months is decreasing at a rate of 12.

7 0
4 years ago
Can someone help me plzzz
ddd [48]
The first mechanic would get $75 per hour and <span>the second mechanic would get $55 per hour</span>
4 0
3 years ago
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a researcher is studying the effects of playing chess on memory improvement. he identifies 50 people who play chess and 50 peopl
Sever21 [200]

Answer:

Observational study

Step-by-step explanation:

Just took the test

6 0
3 years ago
Which line is perpendicular to the line y= -1/3 x - 2 and passes through the point (1,4)?
natali 33 [55]

Answer:

y = 3x + 1

Step-by-step explanation:

y= -1/3x

perpendicular so y = 3x + b

the line goes through (1,4), so substitute to find the value b , which is where the line intersects with the y axis.

4 = 3*1 +b

so b = 1

y = 3x + 1

3 0
3 years ago
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