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
zmey [24]
3 years ago
9

What is the center and radius of the following circle: (x +4)2 + (-2) = 4?

Mathematics
2 answers:
VLD [36.1K]3 years ago
5 0

Answer:

x = -1

Step-by-step explanation:

ad-work [718]3 years ago
4 0

Answer:

That is not a circle; it has no y term

My guess:

center = (h, k) = (-4, 2)

r = √4 = 2

Step-by-step explanation:

If I had to guess what you intended:

(x  + 4)² + (y - 2)² = 4

The standard equation for a circle is

(x - h)² + (y - k)² = r²

(h, k) is the center and r is the radius

center = (h, k) = (-4, 2)

r = √4 = 2

You might be interested in
Alyssa took a math test for 20 questions and she answered 16 questions correctly in order to get an a she needs to answer at lea
Elenna [48]

Answer:

She did not qualify the exam.

Step-by-step explanation:

Given data

Total no of question in a test = 20

No. of question answered correctly = 16

Percentage of question answered correctly

(\frac{16}{20}) 100 = 80

But in order to get in the exam the student must have to score at least 90 %. But she got only 80 % so she did not qualify the exam.

6 0
3 years ago
A toy company produces 1,000 toys per month. In January, 75 toys did not meet quality standards. The toy company generates a ran
erik [133]
Based on this sample, 100 toys will not meet standards.

There is 1 value that is 75 or lower in this simulation.  This makes the experimental probability 1/10.  1/10(1000) = 100 toys for the month.
3 0
3 years ago
What is true about the slope of the function below<br> y = 4x + 3
Karo-lina-s [1.5K]

       - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - -

\blue{\textsf{\textbf{\underline{\underline{Question:-}}}}}

Which is true about the slope of the function y=4x+3?

\blue\textsf{\textbf{\underline{\underline{Answer and How to Solve:-}}}}

The slope of the function y=4x+3 is 4; in equations like this one, the slope is simply the number before x.

The rise is 4, and the run is 1.

Remember, slope is also defined as "Rise/Run"

[Note:- You haven't listed any options here, could you kindly add them in the comments?]

<h3>Good luck.</h3>

        - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - -- -

4 0
2 years ago
We are interested in the dimensions of a certain square a rectangle had length triple the side of this square and width two unit
Sphinxa [80]

Let s be the side length of the square. The dimensions of the rectangle are three times the side of the square (i.e. 3s), and two less than the side of the square (i.e. s-2).

So, the area of this rectangle is

3s(s-2)=3s^2-6s

The area of the square is s^2, and we know that the two areas are the same, so we have

3s^2-6s=s^2 \iff 2s^2-6s=0 \iff 2s(s-3)=0 \iff s=0 \lor s=3

The solution s=0 would lead to the extreme case where the rectangle and the square are actually a point, so we accept the solution s=3.

3 0
3 years ago
Demi’s last 5 bowling scores were 68, 75, 90, 80. What was Femi’s mean score? A.72 B.75 C.77 D.79 D.
-Dominant- [34]

Complete Question:

Femi's last 5 bowling scores were 68, 75, 72, 90, and 80.  What was Femi's mean score?

Answer:

Step-by-step explanation:

Given

Scores: 68, 75, 72, 90, and 80

Required

Determine the mean

The mean (M) of a data is calculated as thus:

M = \frac{\sum x}{n}

Where

n = number of data.

In this case,

n = 5

and

\sum x = sum of data

So, the formula becomes

M = \frac{68 + 75 + 72 + 90 + 80}{5}

M = \frac{385}{5}

M = 77

<em>Hence, the mean is 77</em>

5 0
2 years ago
Other questions:
  • How much fencing is needed for a rectangular garden 93 feet by 63 feet
    7·1 answer
  • Nickel-63 is a radioactive substance with a half-life of about 100 years. An artifact had
    10·2 answers
  • WILL GIVE BRAINLIEST How much ones are in one ten?
    15·1 answer
  • What is -4+4 showing additive inverse
    15·1 answer
  • 56 equals -10+ 2X what is 56 equals -10+ 2X what is X
    11·1 answer
  • GUYS HELP!!!
    9·2 answers
  • Can someone please help me and write out the answer​
    7·1 answer
  • SOMEONE HELP! I know the answer I just need to show the work.
    5·1 answer
  • Devaughn is 15 years older than Sydney. The sum of their ages is 107. What is Sydney's age?
    5·1 answer
  • Which numbers between 10 and 99 have digits that differ by 4 and add to 6
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!