All categories

3 years ago

Find the solutions of the quadratic equation x2 + 7x + 10 = 0.

Mathematics

1 answer:

Katyanochek1 [597]3 years ago

7 0

Answer:

Step-by-step explanation:

x² + 7x + 10 = 0

x = [-7 ± √(7² - 4·1·10)]/(2·1) = [-7 ± √9[/2 = [-7 ± 3]/2 = -2, -5

You might be interested in

PLEASEEEEE HELPPPPP A B C OR D

SSSSS [86.1K]

Answer:

Step-by-step explanation:

The answer is obviously B =-=

7 0

3 years ago

Read 2 more answers

This month a band has 6 musicians. This is a 50% increase from the number of

GenaCL600 [577]

Answer:

Step-by-step explanation:

okay since there was a 50% INCREASE, 6 is (100%+50%) greater than last months amount.

100%+50%=150%=1.5

let's say that x is last months amount

6=1.5x

x=6/1.5

x=4

There were 4 musicians in the band last month.

7 0

3 years ago

Colton has 888 comedy movies, 666 action movies, 555 fantasy movies, and 111 drama movie on his list of favorite movies.

eimsori [14]

Answer:

A. Comedy

Step-by-step explanation:

We are given that,

Movie type Number of movies

Comedy 8

Action 6

Fantasy 5

Drama 1

Then the total number of movies = 8+6+5+1 = 20

<h3><em>So, we will find the ratio of each type of movie out of total movies.</em></h3>

Ratio of comedy movies = $\frac{8}{20}=\frac{2}{5}$

Ratio of action movies = $\frac{6}{20}=\frac{3}{10}$

Ratio of fantasy movies = $\frac{5}{20}=\frac{1}{4}$

Ratio of drama movies = $\frac{1}{20}$

Since, we have,

<h3>Ratio of comedy movies = $\frac{8}{20}=\frac{2}{5}$ </h3>

Thus, 'For every 5 movies on the list, there are 2 COMEDY movies'.

So, option A is correct.

4 0

3 years ago

Read 2 more answers

Help me please. i’m failing

Dahasolnce [82]

45° because the other side is 75° and it has to be the same angle on both sides

5 0

3 years ago

796,845,291 in word form

jonny [76]

Seven hundred ninety-six million, eight hundred forty-five thousand, two hundred ninety-one.

6 0

3 years ago

Read 2 more answers