All categories

3 years ago

3x^2-14x=5 Show work too

Mathematics

1 answer:

NemiM [27]3 years ago

8 0

Move all terms to one sides

3x^2 - 14x - 5 = 0

Split the second term in 3x^2 - 14x - 5 into two terms

3x^2 + x - 15x - 5 = 0

Factor out the common terms in the first two terms, then in the last two terms;

x(3x + 1) - 5(3x + 1) = 0

Factor out the common term 3x + 1

(3x + 1)(x - 5) = 0

Solve for x;

You might be interested in

How is the scientific use of the term digital different from the common use.

rusak2 [61]

Answer:

The scientific use of "digital" is usually used to describe signals and other entities that have an "either/or" value. An example is the binary system where 1 represents an "on" and 0 represents an "off"

The common use of digital implies anything that is electron, be it analogue or digital.

Step-by-step explanation:

<h2>hope this helps if not then hope dont get an f</h2><h2 />

6 0

3 years ago

HELP! BRAINLIEST ANSWER!

topjm [15]

Answer:

6. 5x - 2

7. 13in

8. 3a + 20

9. 21 1/2

explanation:

6. add all of the values together

7. plug in 3 into the answer from #6 5(3) - 2 and you will get 13

8. add all values

9. plug in 1/2 into the answer from #8 3(1/2) + 20 and you will get 21 1/2

7 0

3 years ago

Tanna scored 130 points on her first game of bowling. On her second game of bowling she scored 156 points. Calculate her percent

Marina CMI [18]

Answer:

the answer is a 20% increase

Step-by-step explanation:

first, you have to find the amount of change (how much her points scored increased

second , you would divide $\frac{26}{130}$ which equals 0.2

then you would multiply by 100 or move the decimal two places to the right

which would equal 20%

5 0

2 years ago

Lyra and Donna are testing the two-way radios they built for their high school science project. Lyra goes to the top of a buildi

nata0808 [166]

This question is far easier to understand if we draw it out. I've included an image attachment to help show the relationships of the measurements. As we can see from the image, their positioning helps form a triangle that we can use the Pythagorean Theorem to find the connection range.
The Theorem is $a^2 + b^2 = c^2$ where a and b are the legs and c is the hypotenuse.

$22^2 + 50^2 = c^2$
$484 + 2500 = c^2$
$2984= c^2$
$\sqrt{2984} = c$
$54.63 = c$
So the answer to the nearest meter is 55 meters.

5 0

3 years ago

Write the fraction as a decimal.<br> 310

WINSTONCH [101]

Answer:

310

Step-by-step explanation:

What is 310 as a decimal? To write 310 as a decimal you have to divide numerator by the denominator of the fraction. 310 is not a fraction so it is a decimal already.

7 0

3 years ago

Read 2 more answers