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
Alja [10]
3 years ago
9

Solve each quadratic equation. Show your work 15. x2 + 3x = 10

Mathematics
2 answers:
Margarita [4]3 years ago
5 0
X^2+3x-10=0
(x+5)(x-2)=0
x=-5 or x=2
Hope this helps. 
OLEGan [10]3 years ago
4 0
X² + 3x = 10

Convert to standard form.
x² + 3x - 10 = 0

factor x² = x * x
factor -10 = 5 * -2

(x + 5) (x - 2) = 0
x(x -2) + 5(x-2) = 0
x² - 2x + 5x - 10 = 0
x² + 3x - 10 = 0

x + 5 = 0               x² + 3x = 10
x = -5               -5² + 3(-5) = 10
                              25 - 15 = 10
                                     10 = 10

x - 2 = 0            x² + 3x = 10
x = 2               2² + 3(2) = 10
                             4 + 6 = 10
                                 10 = 10
You might be interested in
(I WILL GIVE DA BRAINLIEST) Mackenzie and Roger both leave the park at the same time walking in opposite directions. Mackenzie w
Margaret [11]
(5+6=miles per hour)
i hope this helps
so look...
m=miles
(5m+6=m)<------ answer
hope this helps

5 0
3 years ago
Meenu bought two fans for ₹1200 each. She sold one at a loss of 5% and the other at a profit of 10%. Find the selling price of e
Vinvika [58]
<h3><u>Solution: </u></h3>

Overall<u> </u>CP of each fan = ₹1200 .

One is sold at a loss of 5% .

  • ( This means if CP is ₹100, SP is ₹95 ) .

• Therefore,When CP is ₹1200 , Then SP is ₹ 1140.

=  >  \frac{95}{100}  \times 1200 = 1140

Also,Second fan is sold at a profit of 10% .

  • It means , If CP is ₹100 , SP is ₹110.

Therefore , When CP is ₹1200 , Then SP is ₹1320.

<u>• We need to find the combined CP and SP to say whether there was an overall profit or Loss.</u><u>.</u>

  • Total CP = ₹ 1200 + ₹ 1200 = ₹ 2400.
  • Total SP = ₹ 1140 + ₹ 1320 = ₹ 2460.

Since total SP > total CP , A profit of ₹ ( 2460 - 2400 ) or ₹60 has been made ..

<h3>Hope this helps you :)</h3>
4 0
2 years ago
ben drives from a 36- foot platform. The equation h= -16t^2+14t+36 models the dive. How long will it take Ben to reach the water
Valentin [98]
So you want to plug in the height for h and solve for t

36 = -16t^2+14t+36
So you get 14/16 which simplifies to
7/8 seconds

Hope this helped!
6 0
3 years ago
The product of two positive numbers is 1,800. One number is twice the other number. The equation to determine the two numbers, w
Art [367]

Answer:

600

Step-by-step explanation:

x+2x=1800

3x=1800

x=600

4 0
3 years ago
Read 2 more answers
Name
sladkih [1.3K]
Slope formula: (y2 - y1/x2 - x1)

Substitute

(9 - 17/-1 - 3) = 2
8 0
3 years ago
Other questions:
  • Which pair of expressions is equivalent to each other?
    11·2 answers
  • What is 10.39-4.28 rounding estimated to
    7·1 answer
  • WHUR Radio uses 1/5 of its of its 10 hours of daytime broadcast for commercial and 1/2 for music. How much is left for news?
    6·1 answer
  • What is the percent decrease of 80 to 64
    12·1 answer
  • Julio used unit cubes to make a rectangular prism what is the volume of the prism
    8·1 answer
  • The slope of a line is -1/5, and the y-intercept is 5. What is the equation of the line written in general form?
    8·2 answers
  • Answer please brainliested
    13·2 answers
  • Plz answer correctly
    7·1 answer
  • Brainliest to the correct answer :)
    8·1 answer
  • Plz help me out with this ;)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!