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
ser-zykov [4K]
1 year ago
12

14x=x^2-15 find the value of x

Mathematics
1 answer:
hram777 [196]1 year ago
5 0

Answer: x=-1, 15

Step-by-step explanation:

x^2 -14x-15=0\\\\(x-15)(x+1)=0\\\\x=-1, 15

You might be interested in
Is -9 a irrational number
GalinKa [24]
-9 is a rational number. Rational numbers are numbers that can’t be written as a simple fraction like pi (3.14...etc)
4 0
2 years ago
2x^2 -7= 74 please show all work
skad [1K]
2x^2-7=74\\
2x^2=81\\
x^2=\dfrac{81}{2}\\
x=-\sqrt{\dfrac{81}{2}} \vee x=\sqrt{\dfrac{81}{2}}\\
x=-\dfrac{9}{\sqrt2} \vee x=\dfrac{9}{\sqrt2}}\\
x=-\dfrac{9\sqrt2}{2} \vee x=\dfrac{9\sqrt2}{2}}\\
8 0
3 years ago
I need help prove that the quadrilaterals are a parallelogram
Vlad1618 [11]

Answer:

The only shape you can make is a parallelogram. If both pairs of opposite angles of a quadrilateral are congruent, then it's a parallelogram (converse of a property). If the diagonals of a quadrilateral bisect each other, then it's a parallelogram (converse of a property).

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
identify an equation in slope intercept form for the line parellel to y=-3x+7 that passes through (2,-4)
Liula [17]

Answer:

y= -3x+2

Step-by-step explanation:

Parallel lines have the same slope. We can form an incomplete equation:

y= -3x+b

(make sure to see why the slope is -3)

We can plug in the coordinates of (2, -4):

-4= -3(2)+b

-4= -6+b

2=b

b is 2! We can form an equation: y= -3x+2

5 0
2 years ago
The radius r(t) of the base of a cone is increasing at a rate of 10 meters per second. The height h(t) of the cone is fixed at 6
IceJOKER [234]

Answer:

dV/dt = 40π

Step-by-step explanation:

We are told that The radius r(t) of the base of a cone is increasing at a rate of 10 meters per second. Thus;

dr/dt = 10 m

Height: h = 6 m

Volume of cone is given by the formula;

V = ⅓πr²h

dV/dr = ⅔πrh

We want to find the rate at which the volume is changing at radius of 1m.

Thus;

dV/dt = (dV/dr) × (dr/dt)

dV/dt = ⅔π(1 × 6) × (10)

dV/dt = 40π

8 0
3 years ago
Other questions:
  • Unite rate of 4,500 kilobytes in 6 minutes
    8·1 answer
  • Solves 2/7(4q+7/2)-3q=9
    9·1 answer
  • What is the slope of a line that is parallel to y=2
    14·1 answer
  • An adjustable ladder on the back of the firetruck is needed for firefighters to climb to very high buildings. The maximum angle
    6·1 answer
  • Rex weighed 80 pounds a year ago. Now he weighs 92 pounds. What is the percent increase in his weight?
    5·1 answer
  • Does this graph represent a function? Why or why not?
    12·1 answer
  • PLEASE HELPAmaya is using 36 carpet squares to cover the floor of her closet. If
    9·1 answer
  • How many terms are in this expression -x2 -10 + 9x -4x2
    6·2 answers
  • Find the average number of people in these cities: New York, Philadelphia, Chicago and Detroit a. 3.35 million b. 40 million. C
    7·1 answer
  • Would the answer be <br> 40, 10 ?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!