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Nata [24]
4 years ago
7

Evaluate the function for x = 3a. f(x)=2x^2-3x 4

Mathematics
1 answer:
Dmitry_Shevchenko [17]4 years ago
5 0
Hello,

f(x)=2x^2-3x+4
f(3a)=2(3a)^2-3*(3a)+4=2*9a²-9a+4=18a²-9a+4
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A rectangle is 14 ft longer than its width. The perimeter is 88ft. Please help
nirvana33 [79]

Answer:

L=29ft

W=15ft

Step-by-step explanation:

Step one:

given

let the width be x

W=x

L= x+14

P= 88ft

perimeter= 2L+2W

so, substituting our data we have

88=2(x+14)+2x

88=2x+28+2x

collect like terms

88=4x+28

88-28=4x

60=4x

divide both sides by 4

x=60/4

x=15

Step two:

the dimensions are

the width is 15ft

the length= 15+14

L=29ft

8 0
3 years ago
Evaluate the function rule for the given value. f(x) = 3^x for x = –5
Nat2105 [25]

Answer:

it means f(x) = 3^-5

Step-by-step explanation:

3 0
4 years ago
Add the multiple fractions then simplify the answer.
bekas [8.4K]
Find the LCM between the denominators.

The LCM is 36

Divide he LCM for the denominators, then multiply the result for the numerator.

\frac{12+9+4}{36}

You get 25/36 and you can't simplify it
4 0
3 years ago
A circle of radius of 4 inches has an arc length of 5.8 inches. Find the measure of the central angle.
kondor19780726 [428]
<h3>SOLUTION : </h3>

The radius of the circle is 4 inch and has an arc length of 5.8 inches . We know that if the central angle is 360° then the arc length is 2\pi r . Similarly when angle is theta ,

\implies Arc = radius \times \theta

Now substitute respective values , from the given data ,

\implies 5.8 inch = 4inch * \theta \\\\\implies 0.14 m = 0.1 * \theta \\\\\implies \boxed{\red{\theta \approx 1.4 \ rad }}

This is our required answer!

4 0
3 years ago
The dinner bill at the restaurant totaled $473.60. There were 37 guests. How much did dinner cost per guest?
Yuki888 [10]

Answer:

It was $12.8 per guests

Step-by-step explanation:

all u got to do is divide

6 0
3 years ago
Read 2 more answers
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