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3 years ago

Will mark brainiest! Select all that apply.

Mathematics

1 answer:

Gala2k [10]3 years ago

4 0

I don’t see the pic so I can’t help

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Given that f(x) = x2 – 5x – 14 and g(x) = x – 7, find (f +g)(x) and

Angelina_Jolie [31]

Answer:

$(f+g)(x)=x^2-4x-21$

Step-by-step explanation:

We are given:

$f(x)=x^2-5x-14\text{ and } g(x)=x-7$

And we want to find:

$(f+g)(x)$

This is equivalent to:

$=f(x)+g(x)$

Therefore, by substitution:

$=(x^2-5x-14)+(x-7)$

Rearranging gives:

$=(x^2)+(-5x+x)+(-14-7)$

Combine like terms:

$=x^2-4x-21$

6 0

3 years ago

10. Mac the plumber charges $80 for a house call plus

sukhopar [10]

Answer:

4 hours

Step-by-step explanation:

55h = 80 + 35h

55h - 35h = 80 + 35h - 35h

20h = 80

20h/20 = 80/20

h = 4

5 0

3 years ago

PLEASEEEEEEEEEE HELPPPPPPPPPPPPp<br> It is in the picture.

In-s [12.5K]

Answer: D

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

the radius of a cylindrical water tank is 6.5ft, and its height is 16ft what is the volume of the tank?

dimulka [17.4K]

Answer:

Volume of cylindrical tank is 2122.64 cubed feet.

Step-by-step explanation:

It is given that:

Radius of cylindrical tank = 6.5 feet

Height of tank = 16 feet

Volume of tank = πr²h

Putting the values in the formula

Volume = 3.24 * (6.5)² * 16

Volume = 3.14 * 42.45 * 16

Volume = 2122.64 cubed feet.

Therefore,

Volume of cylindrical tank is 2122.64 cubed feet.

4 0

3 years ago

Consider z1 = 4 – 4 startroot 3 endrooti and z2 = –16i. What is z1 – z2? 4 – 12startroot 3 endroot i 4 12startroot 3 endroot i 4

dalvyx [7]

The answer is: $z_1-z_2=4-4(\sqrt{3i} -4i)$

The correct option is: (D)

<h3>What are Complex numbers?</h3>

A complex number is the sum of a real number and an imaginary number. A complex number is of the form a + ib and is usually represented by z. Here both a and b are real numbers. The value 'a' is called the real part which is denoted by Re(z), and 'b' is called the imaginary part Im(z).