1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
iren2701 [21]
3 years ago
14

5. Find the solutions of x^2 – X-30 = 0. please show work on how to do it

Mathematics
2 answers:
erica [24]3 years ago
8 0

Answer:

x=6, x= -5

Step-by-step explanation:

Factor the equation

x^2 - x - 30 = 0 ----> (x-6)(x+5)=0

Next find the solution by setting those in the paranthesis equal to zero.

x-6=0 ----> x= 6

x+5=0 ----> x= -5

Sonbull [250]3 years ago
3 0

Step-by-step explanation:

{x}^{2}  - x - 30 = 0

➡️ {x}^{2}  + 5x - 6x - 30 = 0

➡️ x \times (x + 5) - 6(x + 5) = 0

➡️ (x + 5) \times (x - 6) = 0

➡️ x  + 5 = 0

➡️ x  - 6 = 0

➡️ x =  - 5

➡️ x = 6

➡️ x_{1} =  - 5. \:  x_{2} = 6

You might be interested in
A team of biologists captured and tagged 65 deer in a forest. Two weeks later, the
Gre4nikov [31]

Answer:

1/6x= 65

Step-by-step explanation:

so we can assume that 5/10= 1/6 of the deer were tagged

lets call the total number of dear x

so 1/6x= 65

x= 380

4 0
3 years ago
Determine if the two figures are congruent and explain your answer.
Alexus [3.1K]

Answer:

They can be congurent depending on which two figures you are using

Step-by-step explanation:

3 0
3 years ago
V170 is between what two whole numbers?
timama [110]
100 and 70 is the two while numbers I think that’s what you’re asking
4 0
3 years ago
8.76× 10 6  is  times  than 8.76× 10 2 .
VashaNatasha [74]

10^6 = 10 *10*10*10*10*10 = 1,000,000

10^2 = 10*10 = 100

1000000/100 = 10,000 times larger

4 0
3 years ago
A sample of bacteria is decaying according to a half-life model. If the sample begins with 800 bacteria, and after 13 minutes th
nikklg [1K]

Answer:

56.42 minutes

Step-by-step explanation:

The initial sample= y0 = 800

After 13 minutes , amount = 320

Y= y0e-kt

320 = 800e-k(13)

320/800 = e-k13

0.4 = e-k13

In0.4 = -k13

-0.91629= -k13

0.07048= k

Y = 800e-0.07048t

Minutes when the bacterial present will be 15

15 = 800e-0.07048t

15/800= e-0.07048t

0.01875 = e-0.07048t

In 0.01875 = -0.07048t

-3.97656 = -0.07048t

-3.97656/-0.07048= t

56.42 = t

56.42 minutes

3 0
3 years ago
Other questions:
  • Triangle ABC was translated according to the rule
    11·2 answers
  • How do you draw a model that shows decimal 1.7
    7·2 answers
  • 5.A family dines in a popular franchise restaurant that has a policy of automatically including a 20% tip on all food and bevera
    9·2 answers
  • What are examples of the distributive property?
    14·1 answer
  • Marcus is 5 7/8 feet tall. Ben is 5 5/16 feet tall. Which of the two boys is taller? Justify your answer
    14·1 answer
  • What is the distance between the points (6,-3) and (6,5)?
    10·2 answers
  • It is given that y is inversely proportional to the square of x and that y=48 when x=<img src="https://tex.z-dn.net/?f=%5Cfrac%7
    7·1 answer
  • Can y’all solve this please
    10·1 answer
  • Cos²(90° -X).tan(180°-X).cos(180°+X)/sin(180°-X)
    8·1 answer
  • Which function has an inverse that is also a function? y = 3 2 - 5 3 y = 322 y= x - y = 322 – 5x + 3
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!