7.00
Explanation:
Area of a circle
A
=
π
r
2
, where r is the radius.
Given
A
=
154
,
⇒
154
=
π
⋅
r
2
⇒
r
2
=
154
π
=
49.02
⇒
r
=
√
49.02
=
7.00
Answer:
C. 5
Step-by-step explanation:
Triangle BED is enlarged by scale factor 4.
(25-x)/4 = x
Multiply both sides by 4.
25-x = 4x
Add x on both sides.
25 = 5x
Divide both sides by 5.
5 = x
Answer:
Where’s the question, send it and let me try
Step-by-step explanation:
The real solutions the equation as given in the task content; x² = 225 are; +25 and -25.
<h3>What are the real solutions of the equation as given in the task content?</h3>
It follows from the task content that the real solutions of the equation as given in the task content can be determined as follows;
x² = 225
x = ± 15
Therefore, the real solutions of the equation are; +25 and -25.
Read more on real solutions of equations;
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