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3 years ago

What is an equation of a circle with center (2,7) and radius 4?

Mathematics

1 answer:

goblinko [34]3 years ago

8 0

Equation of a circle:

(x - h)^2 + (y - k)^2 = r^2

In this case:

center (2,7) and radius 4 so h = 2, k = 7 and r = 4

Equation:

(x - 2)^2 + (y - 7)^2 = 4^2

(x - 2)^2 + (y - 7)^2 = 16

Hope it helps.

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State the degree of the polynomial -x4

emmainna [20.7K]

-x^4

The degree is the exponent, and he amount of degrees there are depends on the amount of degrees in each monomial.

In this case, there is only one monomial, with it's degree as 4

4 is your answer

hope this helps

6 0

4 years ago

If set A has 4 elements and B has 3 elements then set n(AXB) is a) 12 b) 14 c) 24 d) 7

Karo-lina-s [1.5K]

Answer:

The correct option is a.

Step-by-step explanation:

Given information:

Number of elements in set A = 4

Number of elements in set B = 3

We need to find n(A × B). It means we have to find the number of elements in set A × B.

If P and Q are two sets with elements m and n respectively, then the number of element in the set P × Q is m × n.

$n(A\times B)=n(A)\times n(B)$

$n(A\times B)=4\times 3$

$n(A\times B)=12$

The value of n(A × B) is 12. Therefore the correct option is a.

8 0

3 years ago

James invests $5,000 at an annual rate of 8% simple interest for 7 years. How much is in the account

borishaifa [10]

Answer:

$8,569.12

Step-by-step explanation:

6 0

3 years ago

A military aircraft can travel 740 miles per hour. The distance between Tyndall Air Force Base in Florida and Lakenheath Air For

BARSIC [14]

Answer: 3.5 h

Step-by-step explanation:

1. Data:

a) s = 740 miles / h

b) d = 2,567 miles

c) t = ?

2. Equation:

speed = distance / time

s = d / t

3. Solution:

Solve the equation for t:

s = d / t ⇒ t = d / s

Substitute values:

t = 2,567 miles / (740 miles/h) ≈ 3.47 h ≈ 3.5 h

5 0

3 years ago

Can someone help me with this question? Thank you!

Natali [406]

Answer:

Step-by-step explanation:

22 is the largest number you are given in this diagram. 0 is the smallest. that would be your first step.

Next think about it as if you already know your midpoint, as in, midpoint being half of your ending value.

Lastly, you want to divide 22 in half, since midpoint is half of your line segment, and then answer you get is 11

3 0

3 years ago