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Novosadov [1.4K]
2 years ago
9

Solve the quadratic equation numerically (using tables of x- and y- values). x squared + 5 x + 6 = 0 a. x = -3 or x = -2 c. x =

-3 or x = -3
Mathematics
2 answers:
sineoko [7]2 years ago
6 0

Answer:

22

Step-by-step explanation:

I did it on math class

sladkih [1.3K]2 years ago
3 0

Answer:

2 solutions:  -2 and -3

Step-by-step explanation:

x² + 5x + 6 has the following factors:  (x+3)(x+2) = 0

x+3 = 0; one solution is -3

x+2 = 0; second solution is -2

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The sum of two numbers is twenty-four. The difference of the two numbers is four.
RSB [31]

Answer:

x + y = 24

x - y = 4

Now, add these two equations.

You get,

2x = 28

x =  \frac{28}{2}

x = 14

Given,

x + y = 24

14 + y = 24

y = 24 - 14

y = 10

You can test this to the other equation as well.

x - y = 4

14 - 10 = 4

Hence, the two numbers are 14 and 10.

3 0
2 years ago
(5-5)^2 - (6-5)^3 simplify the expression PLEASE HELP
leonid [27]

Answer: 15

Step-by-step explanation:

(5-1)^2 - (6-5)^3

(4)^2 - (1)^3

16-1

=15

7 0
2 years ago
Read 2 more answers
Mirror the speed of 16.8 m/s Olympian ran the 100 m dash in 9.6 seconds how much faster was Sarah the cheetah speed to the neare
Fiesta28 [93]

Answer:

6.4 meters per second

Step-by-step explanation:

Sarah the cheetah ran 100 meters at a speed of 16.8 meters per second. An olympian ran the 100-meter dash in 9.6 seconds. How much faster was Sarah the cheetah’s speed, to the nearest tenth of a meter per second?

0.9 meters per second

1.6 meters per second

6.4 meters per second

10.4 meters per second

Speed = distance / time

Olympian's speed = 100 / 9.6 = 10.4 meters per second

Sarah's speed = 16.8 meters per second.

Difference in speed = 16.8 - 10.4 = 6.4

the tenth is the first number after the decimal place. To convert to the nearest tenth, look at the number after the tenth (the hundredth). If the number is greater or equal to 5, add 1 to the tenth figure. If this is not the case, add zero

6 0
2 years ago
If tan θ = 3/2 and cos θ < 0, use the fundamental identities to evaluate the other five trig functions of θ.
notsponge [240]
Use the Pythagorean theorem, tan is y/x so y = -3 and x= -2. Because cos is negative and R is always positive. You need to find R- which is the hypotenuse;
3^2 + 2^2 = r^2
9 + 4 = r^2
13 = r^2
√13 = r.

So you already have tan<span>θ, 
cot</span><span>θ= 2/3

sin</span>θ= -3/√13 BUT
you have to rationalize, so you get -3 √13/ 13

cscθ= √13/ -3

cosθ= -2/ √13 BUT
you have to rationalize, so you get -2√13/ 13

secθ= √13/ -2
4 0
3 years ago
Read 2 more answers
Set up a table of values and then graph the line from its parametric form.. x=8+4t. y=-1+8t
Shalnov [3]
<span> x=8+4t
 
y=-1+8t

t = 0        x = 8      y = -1
</span>
t = 1        x = 12      y = 7

t = 2        x = 16      y = 15
7 0
3 years ago
Read 2 more answers
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