All categories

3 years ago

Which functions are increasing? Select all answers that are correct. Help ASAP!

Mathematics

2 answers:

nalin [4]3 years ago

8 0

The second and fourth functions because the arrows are pointing to positive infinity of the right side of the graph.

Fittoniya [83]3 years ago

3 0

These are obviously functions that increase. They go from top to bottom from right to left.

I am joyous to assist you anytime.

You might be interested in

The function f is defined by f(x) = x^2 + 3x -10 , if f(x + 5) = x^2 + kx + 30, k=

boyakko [2]

Answer:

k = 13

Step-by-step explanation:

substitute x = x + 5 into f(x) , that is

f(x + 5) = (x + 5)² + 3(x + 5) - 10 ← expand squared factor using FOIL

= x² + 10x + 25 + 3x + 15 - 10

= x² + 13x + 30

compare this with f(x + 5) = x² + kx + 30

for the 2 expressions to be equal , then k = 13

6 0

3 years ago

Which of the following are geometric sequences?

olga2289 [7]

2,3,4 options are geometric sequences I believe.

3 0

3 years ago

Read 2 more answers

a 16 inch wire is to be cut. one piece is to be bent into the shape of a square, whereas the other piece is to be bent into the

Lyrx [107]

1. Let x be a length of square side, then the square perimeter is 4x (you need to cut 4x from 16 in. to make a square with side x in.). Then 16-4x is remained length of wire and you have to make form this piece a rectangle with sides one of which is twice bigger than another. If y is length of the smaller side, then 2y is length of the bigger side and rectangle perimeter is y+2y+y+2y=6y. You have 16-4x in. of wire left, so 6y=16-4x and $y= \frac{16-4x}{6}$ .

2.
$A_{square}=x^2 \\ A_{rectangle}=y\cdot 2y=\frac{16-4x}{6}\cdot2\cdot\frac{16-4x}{6}= \frac{(16-4x)^2}{18} \\ A(x)=A_{square}+A_{rectangle}=x^2+\frac{(16-4x)^2}{18}$ .

3. Find the derivative of the function A(x):
$A'(x)=2x+ \dfrac{2(16-4x)\cdot(-4)}{18} =2x- \dfrac{4(16-4x )}{9}$ .

4. Solve the equation A'(x)=0:
$2x- \dfrac{4(16-4x )}{9}=0 \\ 18x-64+16x=0 \\ 34x=64 \\ x= \frac{32}{17}$

5. Since $y= \frac{16-4x}{6}$ you have

$y= \dfrac{16-4 \frac{32}{17} }{6} = \dfrac{16\cdot17-4\cdot32}{6\cdot 17} = \dfrac{24}{17}$ .

Answer: <span>the width of the rectangle is $\frac{24}{17}$ </span>

6 0

4 years ago

If two-fifths of a certain number is subtracted from twice the number, the result is 4. PLS ANSWER

atroni [7]

Answer:

Step-by-step explanation:

2x-2/5=4

2x= 4+(2/5)

2x= 4/5+20/5

x=(22/5)/2

x= 22/10 or 11/5

check:

2(11/5)-2/5=(22/5)-(2/5)

=20/5

7 0

3 years ago

Read 2 more answers

hhhhhhhhhhhhhhhheeeeeeeeeeeeeeeeeeeeeeeeelllllllllllllllllllpppppppppppppppppppppppppppppppppppppppppp

hichkok12 [17]

Answer:

The choose;

$3 \frac{9}{10}$

Step-by-step explanation:

$2 \frac{3}{5} \div \frac{2}{3} \\ \\ = \frac{13}{5} \div \frac{2}{3} \\ \\ =\frac{13}{5} \times \frac{3}{2} = \frac{39}{10} \\ \\ = 3 \frac{9}{10}$

I hope I helped you^_^

5 0

3 years ago