2 years ago

State the radius of this circle: X^2 +Y^2=121

Mathematics

1 answer:

Snowcat [4.5K]2 years ago

8 0

Answer:

radius = 11

Step-by-step explanation:

The equation of a circle centred at the origin is

x² + y² = r² ( where r is the radius )

x² + y² = 121 ← is the equation of a circle centred at the origin

with r² = 121 , then

r = $\sqrt{121}$ = 11

You might be interested in

Ellie wants to change her password which is ELLIE9 but with same letters and number. In how

MissTica

$\dfrac{6!}{2!2!}-1=\dfrac{3\cdot4\cdot5\cdot6}{2}-1=180-1=179$

8 0

3 years ago

Find the quotient. 0.42 -0.7 HELP PLEASE

Simora [160]

Answer:

-0.28

Step-by-step explanation:

6 0

3 years ago

−2(−1 1/4) in simplest form

jolli1 [7]

Answer:

11/4 is your answer.

Step-by-step explanation:

What you do is you have to times -2 and -11/4 together.

This gives you 22/8.

This can be reduced by 2 to get:

11/4 as your answer.

6 0

3 years ago

Read 2 more answers

Convert number from scientific notation to standard notation 1.4×10^-8

shusha [124]

Answer:

Step-by-step explanation:

The answer is 0.000000014

8 0

3 years ago

Carlos has at most $40 to spend on food for a barbeque. He wants to buy hot dogs and hamburgers and then

poizon [28]

Answer:

$8.50

Step-by-step explanation:

I don't know what Alls are, but if Carlos insists, we can calculate how much he can spend on Alls with the expression:

($31.50) + r $\leq$ $40

This says the sum of what Carlos has already spent (hot dogs and hamburgers) plus the amount he spends on Alls (rolls?), r, must be equal to or less than the $40 he has allowed himself to spend.

($31.50) + r $\leq$ $40

r $\leq$ $40 - $31.50

r $\leq$ $8.50

3 0

1 year ago