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
Semenov [28]
3 years ago
9

Answer n.8 for me pls

Mathematics
1 answer:
Nimfa-mama [501]3 years ago
5 0

Answer:

Step-by-step explanation:

(13)2−(2x+7)=0

19x2−2x−7=0

9(19x2−2x−7)=9(0)

x2−18x−63=0

(x−21)(x+3)=0

Therefore, the value of x are

x - 21 = 0 and x + 3 = 0

x = 21 x = -3

You might be interested in
What makes 83 cents ?
Sliva [168]
83 Cents = 2 Quarters, 1 Nickel, 4 Pennies.

Glad I Could Help, And Good Luck!

~AnonymousGiantsFan~
6 0
3 years ago
Read 2 more answers
Max lost 128 pounds in 16 weeks on his new weight-loss plan. What was his average change in weight per week?
Alex

Answer:

8 pounds per week

Step-by-step explanation:

AVG= total/time span

so

AVG= 128/16

AVG= 8 pounds per week

Hope this helps!

7 0
2 years ago
about 7.5 gallons of water will fill up 1 cubic foot of space. how many gallons of water will fill a goldfish pool shaped like t
Cloud [144]
Well, since there is no image I am unable to say the exact volume. But here is the volume formula-
V=L times W times H
*V=volume W=width H=height
and you don't actually have to write times you can do the symbol.

Example- if I had a rectangular prism of the width being 5 cubes, the length 8 cubes, and the height 7 cubes(following how many gallons are in a cube 7.5) I would the use my formula. V=LWH- 8 times 7= 56 56 times 5=280 280 times 7.5= 2100
V=2100 (that is your answer reply If you didn't mean the volume or you don't get it)


7 0
3 years ago
Read 2 more answers
Four times a number minus twice another number is -8. The sum of the two number is 19.Find the numbers
grigory [225]
1. To solve this exercise, you must make a system of equations.

 2. You have that f<span>our times a number minus twice another number is -8:
</span>
 4x-2y=-8

 3. And t<span>he sum of the two number is 19:
</span>
 x+y=19

 4. As you can see, you have two equations:

 4x-2y=-8   (i)
 x+y=19     (ii)

 5. Let's clear the "x" from the equation (ii):

 x=19-y

 6. Now, you need to susbtitute x=19-y into the equation (i):

 4x-2y=-8
 4(19-y)-2y=-8
 76-4y-2y=-8
 76-6y=-8
 -6y=-8-76
 -6y=-84
 y=-84/-6
 y=14

 7. You must susbstitute y=14 into the equation (ii) and clear "x":

 x+y=19
 x+14=19
 x=19-14
 x=5

 The answer is: 5 and 14
6 0
3 years ago
Write an equation for a rational function with: Vertical asymptotes at x = 2 and x = -5 x-intercepts at x = 5 and x = -2 Horizon
ludmilkaskok [199]

Answer:

f (x) = 3(x+5) (x+2) / (x-2) (x+5)

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Completing the square<br> 4y2+8y=11
    8·1 answer
  • Someone please help me with my long division homework in return I will answer Spanish questions
    15·2 answers
  • A spinner has 3 equal sections that are red white and blue what would be the probability of not landing on the blue
    14·1 answer
  • Find the value of c and YZ if Y is between X and Z.
    5·1 answer
  • A bowl of cereal weighs 60 oz how heavy is it in L
    10·2 answers
  • What is r the common ration in the geometic sequence 2, -14, 98, -687
    12·1 answer
  • Write 9 as a power of the base 3
    10·1 answer
  • Colin and Dan win some money and share it in the ratio 4:5. Colin gets £52. How much did they win in total?
    7·1 answer
  • PLEASE HELP MEEE !!!! ITS GEOMETRY
    13·1 answer
  • What is (1 5th) divided by 6 ps.1 5th is my fraction
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!