3 years ago

What is the error in the student work below?

Mathematics

2 answers:

sp2606 [1]3 years ago

8 0

The negative 16 in the second line should be positive 16.

See attached picture:

ivann1987 [24]3 years ago

5 0

Answer:

This is +16x not minus 16x as shown in the problem

Step-by-step explanation:

4x^3 + 4x^2 -8x-(8x^2 -16x+4)

Distribute the minus sign

4x^3 + 4x^2 -8x-8x^2 +16x-4

The error is here This is +16x not minus 16x as shown in the problem

4x^3 -4x^2 +8x-4

You might be interested in

What is the value of x?

hram777 [196]

Sum of angles of a triangle = 180°

91 + 10x - 4 + 8x +3 = 180
18x + 90 = 180
18x = 90
x = 5°

6 0

4 years ago

Read 2 more answers

Translations Use the translation (x,y)(x+5,y-9) for questions 1-7. 1. What is the image of A(-1,3)? 2. What is the image of B(2,

lara [203]

Answer:

The answer is c hopes this helps

7 0

2 years ago

The entire graph of the function h is shown in the figure below. Write the domain and range of h using interval notation.

LiRa [457]

Answer:

(A) Domain : (-4, 3]

(B) Range : [ -2, 4)

5 0

3 years ago

Can someone explain this plz and make sure u round to the nearest tenth

bonufazy [111]

Step-by-step explanation:

According to figure,Taking angle 49° as reference angle,we have

b=26

h=x=?

Now,

$\cos49 = \frac{b}{h} \\ \cos49 = \frac{26}{x} \\ 0.66 = \frac{26}{x} \\ 0.66x = 26 \\x = \frac{26}{0.66} \\ x = 39.39 \\ x = 39.4$

I HOPE THIS WILL HELP U

8 0

3 years ago

Please help!!!!!!!!!

solmaris [256]

Answer:

-4q+ $\frac{40}{3}$

Step-by-step explanation:

distribute $\frac{-4}{3}$ on the bracket. So, (3)( $\frac{-4}{3}$ )q-(10)( $\frac{-4}{3}$ )=-4q+ $\frac{40}{3}$

5 0

2 years ago