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Lilit [14]
3 years ago
15

Find the value of a and b when x=12

Mathematics
2 answers:
BigorU [14]3 years ago
8 0

Step-by-step explanation:

a = \frac{ 5{x}^{2} }{2}  = 360 \\ b =  \frac{2 {x}^{2}( x - 5) }{10x}

a =

\frac{5( {12}^{2} )}{2}  = 360 = a \\  \frac{5(144)}{2}  = 360 = a \\  5(72) = 360 = a \\ a = 360

b =

b =  \frac{2 {x}^{2} (x - 5)}{10x}  \\ b =  \frac{x(x - 5)}{5 }  \\ b =  \frac{ {x}^{2}  - 5x}{5}  \\ b =  \frac{ {12}^{2} - 5(12) }{5}  \\ b =  \frac{144 - 60}{5}  \\ b =  \frac{84}{5}  \\ b = 16.8

garri49 [273]3 years ago
5 0
A= 360
B= 2(12)²(7)/120= 2016/120=16.8
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Help! asap!! 10 points! will give brainliest!!!
Mnenie [13.5K]

Using the Pythagorean Theorem, we have that the distance from home plate to second base is about 127 feet.

<h3>What is the Pythagorean Theorem?</h3>

The Pythagorean Theorem relates the length of the legs l_1 and l_2 of a right triangle with the length of the hypotenuse h, stating that the hypotenuse squared is the <u>sum of the legs squared</u> of the triangle, according to the following equation:

h^2 = l_1^2 + l_2^2

The distance between each consecutive base is of 90 feet, hence the distance from home plate to 2nd base is the hypotenuse of a <u>right triangle in which the legs are of 90 feet</u>, being the distances from home plate to 1st base and 1st base to 2nd base.

Then:

h² = 90² + 90²

h = sqrt(90² + 90²)

h = 127 feet.

The distance from home plate to second base is about 127 feet.

More can be learned about the Pythagorean Theorem at brainly.com/question/654982

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7 0
1 year ago
LOTS OF POINTS hard math though
Zinaida [17]
False because x is -5
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3 years ago
Asap! please help i’ll give brainliest
Aleonysh [2.5K]

Answer: 2nd one

Step-by-step explanation: Look at the options. In all of the options, the number of 0's is 3 so you don't have to look for the zero's. Next look at the one's. The first 2 have 2 ones and the next 2 have 3. The number of ones in the data is 2 so you can eliminate the last 2. Then look at the 2's between the top 2. In the first one, there is 2 and in the second one there is only one. In the data table, there is one 2 so the answer has to be the 2nd one. Hope this helps :)

6 0
3 years ago
Please help me. I need help ASAP. ​
lara [203]

Answer:

a) 72

b) $259.2

Step-by-step explanation:

A- The bus travels 40 miles on 8 gallons of gasoline. The bus is traveling 360 miles in total.

360/40= 9

9*8= 72

B- $3.60 per gallon and 72 gallons in total.

3.60*72=259.2

$259.2

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(WILL GIVE BRAINLIEST) Which of the following exponential functions goes through the points (1, 6) and (2, 12)?
olganol [36]

Answer:

\boxed{a. \: f(x) = 3(2)x} \: is \: correct

Step-by-step explanation:

if \: the  \: points \: are \:  (1, 6) \:  and  \: (2, 12) \to \\ then \to \\ m =  \frac{12 - 6}{2 - 1}  =  \frac{6}{1}  \\  \boxed{m = 6} \\ y - 6 = m(x  - 1) \\ y = 6x - 6 + 6 \\ y = 6x = (3)(2)x \\ but \: y = f(x) \to \: hence \to \\ \boxed{ f(x) = 3(2)x}

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3 years ago
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