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
Bogdan [553]
3 years ago
13

HELP! WILL GIVE BRAINLIEST!! EASY! GIVE LONG DETAILED ANSWER!

Mathematics
1 answer:
OLEGan [10]3 years ago
6 0

Answer:

x² + 2x + y² + 4y = 20

(x² + 2x + 1) - 1 + (y² + 4y + 4) - 4 = 20

(x + 2)² + (y + 4)² - 5 = 20

(x + 2)² + (y + 4)² = 25

Therefore, the center is (-2, -4) and the radius is √25 = 5.

You might be interested in
If AC = 3, BC = 5, and AB = 7, find AD:<br> 2 5/8<br> 4 1/5<br> 4 3/8<br> 11 2/3
Vesna [10]

Answer:

1.  2\frac{5}{8}  

Step-by-step explanation:

We can see that CD is angle bisector, So we will use angle bisector theorem which states that the angle bisector of an angle of a triangle divides the opposite side in two segments that are proportional to the other two sides of the triangle.

We can set up an equation as:  

\frac{AC}{AD}=\frac{BC}{BD}

Upon substituting our given values we will get,

\frac{3}{AD}=\frac{5}{(7-AD)}}

Cross multiplying our equation we will get,

5AD=3*(7-AD)

5AD=21-3AD

5AD+3AD=21

8AD=21

AD=\frac{21}{8}

AD=2\frac{5}{8}

Therefore, the length of AD is 2\frac{5}{8} units and 1st option is the correct choice.

6 0
3 years ago
Image attached please help me out I will give you brainliest
lara [203]

Answer:

a) green: 0.3

yellow: 0.1

b) 12

Step-by-step explanation:

Unfortunately, I cant write on the table. But, I CAN help you with this question.

Since all probabilities have to add up to one, we can for an equation like this

(where y is yellow)

0.35+0.25+3y+y=1

This simplified is

0.6+4y=1

4y=0.4

So, we now know that green is 0.3, and yellow is 0.1.

For b, we set 0.35x to 14. Dividing gives us:

14/0.35=1400/35=40.

Multiply 0.3 by 40, and you get 12.

Hope this helped!

7 0
3 years ago
Zoe is making a quilt using 15 red squares and 30 green squares. Which combination shows the same ratio of red squares to green
Scilla [17]

Answer: A. 3 red squares to 6 green squares

Step-by-step explanation:

Method 1) Find a common factor between 15 and 30. For this problem, I'll pick 5. Divide both numbers by this common factor.

15/5=3 red squares

30/5=6 green squares

<em>3 red squares to 6 green squares</em>

Method 2) Find the greatest common factor between 15 and 30. The GCF is 15. Divide both numbers by the GCF.

15/15=1

30/15=2

This leaves you with a ratio of 1 red square to 2 green squares. 1:2 is equivalent to 3:6

<em>3 red squares to 6 green squares</em>

4 0
3 years ago
Read 2 more answers
Simplify 2a x a x 3a + b x 4b
loris [4]

Hello!

We have the following expression:

2a\cdot a\cdot3a+b\cdot4b

Let's multiply and simplify it, look:

6a^3+4b^2

We multiply a*a*a, so we can rewrite it as a³. The same with b*b as b².

So, the answer in the simplified form is:

6a³ + 4b²

7 0
1 year ago
Do you want to take the test? You have to be smart if you pass you get brainliest.
Ket [755]

what test???????????

3 0
2 years ago
Other questions:
  • The feet of a commemorative parabolic steel arch 100m high are 200m apart. Determine whether the focus of the arch is above or b
    11·2 answers
  • Estelle is raking leaves in the yard. After 1 hour, she has 2 bags of leaves. After 3 hours, she has 6 bags of leaves. Which gra
    6·1 answer
  • HELP PLEASE <br><br>must show work ​
    15·1 answer
  • Two rectangular properties share a common side. Lot A is 33 feet wide and 42 feet long.
    5·1 answer
  • In which quadrant will the triangle be located after this series of transformations? Does the size of the triangle change after
    5·1 answer
  • Need help with this question ​
    6·2 answers
  • What are the rules for multiplying negative numbers?​
    14·2 answers
  • Which statement is correct?
    14·1 answer
  • The data set shows the lengths, in minutes, of different musical performances.
    12·2 answers
  • Urgent. There are 12 coloured counters in a bag. The counters are black, white or grey A counter is chosen at random. The probab
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!