3 years ago

3x² + 8x - 4=0 Use the quadratic formula to solve the equation

Mathematics

2 answers:

sleet_krkn [62]3 years ago

8 0

That is correct ^^^

.

Lisa [10]3 years ago

5 0

Answer:

x=4/14

Step-by-step explanation:

step one:

3x^2+8x-4=0 turns into -

6x+8x-4=0

Step two:

6x+8x-4=0 turns into -

14x-4=0 because you have to combine like terms

Step three:

14x-4= 0 turns into

14x=4 to get x by itself

Step four:

14x=4 turns into -

x=4/14

You might be interested in

What is m < 8 if m < 4 = 50° ? A) 50° B) 180° C) 70° D) 40°

icang [17]

Answer:

Step-by-step explanation:

7 0

3 years ago

Which is equivalent to (3 + 2i)(3 - 2i)? A) 5 B) 6 C) 9 D) 13

SVETLANKA909090 [29]

Answer: D

Step-by-step explanation:

(3 + 2i) (3-2i) = 13

8 0

3 years ago

Read 2 more answers

You are comparing to wireless services. Verizon changes $35 a month and $5 per gigabyte of data.

ikadub [295]

A) Gigabytes = x
B) 35+5x = 25+10x
10 = 5x
2 = x
C) After 2 gigabytes, the wireless services will cost the same ($45)

7 0

3 years ago

Roger wants to carpet a rectangular room with length of 8 3/4 feet and a width of 9 1/3 feet. If he has 85 square feet of carpet

Dima020 [189]

Answer:

12.66 $ft^2$

Step-by-step explanation:

Given the dimensions of the room are $8\frac{3}{4}$ = $\frac{31}{4}$ and $9\frac{1}{3}$ = $\frac{28}{3}$ .

The area of the room = $length*width$

Area= $\frac{31}{4} *\frac{28}{3}$

Area=72.33 $ft^2$

The area of the carpet=85 $ft^2$

The area of carpet left= Total area of carpet - the area of the room

The area of carpet left= 85-72.33=12.66 $ft^2$

7 0

3 years ago

What is FC in the figure?

Harlamova29_29 [7]

FC is median..

Median is a line from a vertex that equally divides the opposite side...
here FC divides DB therefore it is a median.....

HOPE IT HELPS YOU '_'

8 0

3 years ago

Read 2 more answers