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
NikAS [45]
3 years ago
5

Please help

Mathematics
1 answer:
Elena-2011 [213]3 years ago
4 0

Answer:

<h2>9.2</h2>

Step-by-step explanation:

The distance formula is:

d = \sqrt{(x2 - x1)^2 + (y2 - y1)^2

-4 - 2 = -6  squared = 36

4 - -3 = 7   squared = 49

36 + 49 = 85

\sqrt{85} = about 9.2

I'm always happy to help :)

You might be interested in
2) Solve the following equation for x: 2(x-5) = 36<br> A) 15.5 В) 23 С) 18<br> D) 13
Irina-Kira [14]

Answer:

b

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is a radius of a circle given by the equation x²-2x+8y-47=0
Zolol [24]
First, we are going to rewrite it as a parabola equation.
Rewrite.
8y=-x^2+2x+47
Divide by 8.
y=-\frac{x^2}{8}+\frac{x}{4}+\frac{47}{8}
Factor out coefficient.
y=-\frac{1}{8}\left(x^2-2x\right)+\frac{47}{8}
Then, we are going to convert x into square form.
y=-\frac{1}{8}\left(x^2-2x+1\right)+\frac{1}{8}\cdot \:1+\frac{47}{8}
Convert the whole expression into square form.
y=-\frac{1}{8}\left(x-1\right)^2+\frac{1}{8}\cdot \:1+\frac{47}{8}
Simplify.
y=-\frac{1}{8}\left(x-1\right)^2+6
Subtract 6 from both sides.
y-6=-\frac{1}{8}\left(x-1\right)^2
Divide by coefficient.
-8\left(y-6\right)=\left(x-1\right)^2
Rewrite in standard form.
4\left(-2\right)\left(y-6\right)=\left(x-1\right)^2

The radius of the circle will be -2. Also, no matter what the sign says, the radius has to always be positive. 
Have a nice day! :)
7 0
3 years ago
Read 2 more answers
One increased by 7 times a number is the same as 5 times the number plus 25
sammy [17]

Answer:

12

Step-by-step explanation:

Let the number = x

7x + 1 = 5x + 25                 Subtract 5x from both sides.

7x - 5x + 1 = 5x - 5x + 25   Combine

2x + 1 = 25                          Subtract 1 from both sides.

2x + 1 - 1 = 25-1                   Combine

2x = 24                               Divide by 2

2x/2 = 24/2

x = 12

4 0
3 years ago
Helppp me plssss because it’s a test
Ad libitum [116K]

Answer:

3

Step-by-step explanation:

3 0
2 years ago
What is the equation of the quadratic graph with a focus of (1, 1) and a directrix of y = −1? PLs HELP!!
Delicious77 [7]
ANSWER
f(x)= \frac{1}{4} {(x - 1)}^{2}

EXPLANATION

Since the directrix is
y = - 1

the axis of symmetry of the parabola is parallel to the y-axis.

Again, the focus being,

(1,1)

also means that the parabola will open upwards.

The equation of parabola with such properties is given by,

{(x - h)}^{2} = 4p(y - k)
where
(h,k)

is the vertex of the parabola.

The directrix and the axis of symmetry of the parabola will intersect at
(1, - 1)

The vertex is the midpoint of the focus and the point of intersection of the axis of the parabola and the directrix.

This implies that,
h = \frac{1 + 1}{2} = 1

and
k = \frac{ - 1 + 1}{2} = 0

The equation of the parabola now becomes,

(x - 1) ^{2} = 4p(y - 0)

|p| = 1

Thus, the distance between the vertex and the directrix.

This means that,

p = - 1 \: or \: 1

Since the parabola opens up, we choose
p = 1
Our equation now becomes,

{(x - 1)}^{2} = 4(1)(y - 0)

This simplifies to
{(x - 1)}^{2} = 4y

or

y = \frac{1}{4} {(x - 1)}^{2}

This is the same as,

f(x)= \frac{1}{4} {(x - 1)}^{2}

The correct answer is D .
4 0
3 years ago
Other questions:
  • The circumference of the bike tire above is 83.524 inches. What is the radius of the bike tire? (Use 3.14 for .)
    11·1 answer
  • A line is written in standard form Ax + By = 0, where A and B are not
    15·1 answer
  • 32 pt =how many gallons
    6·2 answers
  • At a sporting good store, the price of a bicycle is $650
    13·1 answer
  • Paco has 2 1/3 feet of rope. If he cuts the rope into pieces that are each 1/2 foot long, there will be 1/3 foot of rope left ov
    10·2 answers
  • A(n) _____ in the money supply will cause interest rates to decrease, which, in turn, causes spending to _____. A. increase; dec
    11·1 answer
  • I need to see the long division for 3312 divided by 48
    11·1 answer
  • 1 options:
    12·2 answers
  • Please help it’s geometry! I’ll make brainliest
    14·2 answers
  • Helppppppppp I’m sooo stuck
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!