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2 years ago

Write the standard equation of a circle with center $\left(-3,\ 4\right)$ and radius $1$ .

Mathematics

1 answer:

Nostrana [21]2 years ago

6 0

Answer:

(x + 3)² + (y – 4)² = 1

Step-by-step explanation:

(x – h)² + (y – k)² = r².

Where (h, k) is the center of the circle, and r is the radius of the circle.

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Someone please help me !

Gwar [14]

30 = arc BC / 2
arc BC = 2(30)
arc BC = 60

answer
D. 60

4 0

3 years ago

A service station will be built in the highway, and a road will connect it with cray. How long will the new road be?

abruzzese [7]

Answer: 24 mi

Step-by-step explanation:

Let the points A, B, C and S represent Alba, Blare, Cray and Service station respectively,

Then According to the question,

We have to find out the line segment CS = x = ?

Now, In the triangles ACB and CSB,

$\angle ACB\cong \angle CSB$ ( Right angles )

$\angle ABC\cong \angle CBS$ ( Reflexive angles )

Thus, by AA similarity postulate,

$\triangle ACB\sim\triangle CSB$

By the property of similar triangles,

$\frac{AB}{CB}=\frac{AC}{CS}$

$\implies \frac{50}{30}=\frac{40}{x}$

$\implies 50x=30\times 40$

$\implies 50x = 1200$

$\implies x =24$

Thus, the length of the new road = 24 miles

7 0

2 years ago

The sum of two numbers is 41. The larger number is one less than twice the smaller number. Find the numbers.

Arte-miy333 [17]

I hope this helps you

small a

larger 2a-1

a+2a-1=41

3a=42

a=14

2a-1=2.14-1=27

6 0

3 years ago

Clara is leaving her uncle's house to go to her house. After driving 2 hours at a steady rate, Clara is 79 miles from her house

topjm [15]

If you use your subtraction right when you use deceleration as for example like 4.5 from 79 well you know it had to slow down so the correct Answer for this would end up as 17 .5 Try the easy way like

79 dived by 4.5 would get you the same answer but don't divide backwards you will get an in correct answer

hope i helped;)

5 0

3 years ago

Read 2 more answers

Three swimmers competed in a 50 m freestyle race. A description of their swimming speeds is given. Order the swimmers from first

alexandr1967 [171]

Answer:

terrance then mike then nathan

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers