A. The student added before multiplying.
If they had multiplied 6 and 4 first, the next step would have been too divide. But since they added first, they got 36/24 or 3/2 when the answer should be 13.
Answer: 3.14159265358979.
Step-by-step explanation:
Answer:
396/π OR 126.05071
———
Why?
To find the circumference of a circle, we use this formula;
C = πd
—> C represents the circumference
and d means the diameter.
Let’s use this formula to figure out the diameter of this circular ground.
396 = πd
Let’s isolate d.
-πd = -396
Now, divide each term by -π to further isolate d.
d = 396/π
You should leave the answer as such. However, if you’re required to give a decimal, make sure you solve using the full form of Pi, not just 3.14 or a couple numbers after the decimal (there should be an option on your calculator) for the most accurate results.
d ≈ 126.05071
———
Check:
C = 396/π*π
C = 396
Answer:
<h2>140° and 40°</h2>
Step-by-step explanation:
We know: Supplementary angles add up to 180°.
Let
α - a measure of a first angle,
(180° - α) - a measure of a second angle
The equation:
<em>cross multiply</em>
<em>use the distributive property</em>
<em>add 2α to both sides</em>
<em>divide both sides by 9</em>