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4 years ago

Find f(5). f(x) = x^2 + 2x

1 answer:

7 0

Put 5 where x is and do the arithmetic.

f(5) = 5^2 +2*5
f(5) = 25 +10 . . . . . evaluate the products
f(5) = 35 . . . . . . . . evaluate the sum

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Find all zeros of <br>f(x)= x^3 + 3x^2 − 3x − 1

PSYCHO15rus [73]

F(1) = 1^3 + 3(1)^1 - 3 - 1 = 1 + 3 - 3 - 1 = 0

so one zero is x = 1, and x-1 is a factor

dividing f(x) by x - 1 gives x^2 + 4x + 1

x = [-4 +/- sqrt (16 - 4)] / 2

x = -0.27, -3.73

zeroes are 1 , -0.27 and -3.73 Answer

4 0

3 years ago

A rectangular picture frame measures 27 cm by 48 cm. What is the perimeter or distance around the picture frame in meters

Firlakuza [10]

150, you just add the numbers

7 0

4 years ago

For problem 8, find the area of the shaded region. The polygon is a regular polygon. please show work.

MissTica

Answer:

34.7791 [unit²].

Step-by-step explanation:

1) area of the circle is:

πr²;

2) area of the regular polygon is:

6*r²√3*0.25=1.5√3r²;

3) the required area:

πr²-1.5√3r²=r²(π-1.5*√3)=64*(3.1415-1.5*1.7321)=34.7791

4 0

3 years ago

Write the fraction in simplest form 5/5

KATRIN_1 [288]

1 . that’s it. That’s the simplest form I’m guessing.

4 0

3 years ago

Read 2 more answers

Christian has a cookie recipe that yields four dozen cookies and calls for 2 1/4 cups white sugar and 3/4 cup brown sugar.cif ch

Paha777 [63]

The ingredients given are for 4 dozen cookies; however, Christian only want to make one dozen, meaning he requires only 1/4 the ingredients.

1/4 of 2 1/4 cups of while sugar is found the following way.

First, we write 2 1/4 as an improper fraction

$2\frac{1}{4}=2+\frac{1}{4}=\frac{9}{4}$

1/4 of this is

$\frac{9}{4}\times\frac{1}{4}=\frac{9}{16}$

Hence, Christian requires 9/16 cups of white sugar.

Similarly, the 1/4 of 3/4 cups of brown sugar is

$\frac{1}{4}\times\frac{3}{4}=\frac{3}{16}$

Hence, Chrisitan requires 3/16 cups of brown sugar.

Therefore, the total cups of sugar required is the sum of

$\frac{3}{16}+\frac{9}{16}=\frac{12}{16}=\frac{3}{4}$

3/4 cups of sugar.

7 0

1 year ago