3 years ago

If the radius of a circle is twice as great as

Mathematics

1 answer:

slava [35]3 years ago

5 0

Answer:

how many times larger? 4 times as large

Step-by-step explanation:

if the radius is half as big as the diameter and the diameter is half of the area

r x r = d

d x d = a

You might be interested in

Given that the expression x³_ ax² + bx+c leaves the same remainder when divided by x + 1 or x-2, find 'a' in terms of 'b'.

goblinko [34]

Answer:

Hi,

a=b+3

Step-by-step explanation:

$\begin{array}{c||c|c|c|c}&x^3&x^2&x&1\\---&---&---&---&---\\&1&-a&b&c\\x=-1&&-1&a+1&-a-b-1\\---&---&---&---&---\\&1&-a-1&a+b+1&c-a-b-1\\\end{array}$

$\begin{array}{c||c|c|c|c}&x^3&x^2&x&1\\---&---&---&---&---\\&1&-a&b&c\\x=2&&2&4-2a&2b+8-4a\\---&---&---&---&---\\&1&2-a&b+4-2a&c+2b+8-4a\\\end{array}$

Thus:

c+2b+8-4a=c-a-b-1

3b-3a=-9

a=b+3

5 0

2 years ago

Can someone help me plz

umka2103 [35]

Step-by-step explanation:

Equation: $4(3+x)=36$

First step:

$(4*3)+(4*x)=36$

Second step:

$12+4x=36$

Third step:

$4x=36-12\\4x=24$

Fourth step:

$x=\frac{24}{4}\\ x=6$

4 0

3 years ago

Question 16 of 21 Which graph shows the solution to this system of linear inequalities?

WARRIOR [948]

The answer is B as it is the only one that matches the 2 inequalities.

3 0

2 years ago

Please help! Attachment below

dmitriy555 [2]

Answer:

that means the system has no solutions

4 0

3 years ago

A swimming pool is in the shape of a right triangle. One leg has a length of 15 feet and the hypotenuse is √325 feet. Estimate t

laiz [17]

Answer:

10 feet

Step-by-step explanation:

a^2+b^2=c^2

15^2+B^2=365

225+b^2=365

b^2=100

b=10

6 0

3 years ago