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3 years ago

Please help!!!

Mathematics

1 answer:

ipn [44]3 years ago

5 0

Answer:

ln18

Step-by-step explanation:

Using the rule of logarithms

loga + logb = logab , then

ln9 + ln2 = ln(9 × 2) = ln18

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Please help me....<br><br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B22%7D%7B7%7D%20%20%20%5Cdiv%20%20%5Cfrac%7B22%7D%7B7%7D

Greeley [361]

<h3><u>Answer</u> :</h3>

$\sf \dashrightarrow \dfrac{22}{7} \div \dfrac{22}{7}$

$\sf \dashrightarrow \dfrac{22}{7} \times \dfrac{7}{22}$

$\sf \dashrightarrow \dfrac{\cancel{22}}{\cancel{7}} \times \dfrac{\cancel{7}}{\cancel{22}}$

$\sf \dashrightarrow 1 \times 1$

$\sf \dashrightarrow 1$

<h3>Hence, answer is 1.</h3>

4 0

3 years ago

Read 2 more answers

For the function f(x)=3xsquared- 2x+5 find f(1) f(-2) and f(a)

Oksanka [162]

$f(x)=3x^2-2x+5\\\\
f(1):\ \ Substitude\ 1 \ as\ x\ into\ function:\\
f(1)=3*1^2-2*1+5=3-2+5=\textbf{6}\\\\
f(-2)\ \ Substitude\ x=-2\\
f(-2)=3*(-2)^2-2*(-2)+5=3*4+4+5=12+4+5=\textbf{21}\\\\
f(a)\ \ substitude\ x=a\\
f(a)=\underline{3a^2-2a+5}$

4 0

4 years ago

The radius of a circle is 3 feet. What is the circle's area?

Dafna1 [17]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Pythagoras help needed please

boyakko [2]

Answer:

See explanation

Step-by-step explanation:

Find the diagonal of the square. The side of the square is 5 cm long. By the Pythagorean theorem,

$\text{Diagonal}^2=\text{Side}^2+\text{Side}^2\\ \\\text{Diagonal}^2=5^2+5^2\\ \\\text{Diagonal}^2=25+25\\ \\\text{Diagonal}^2=50\\ \\\text{Diagonal}=\sqrt{50}=5\sqrt{2}\approx 7.07\ cm$

If the square (being inside the circle) touches the circle, then the diagonal of the square is exactly the diameter of the circle. The diameter of the circle is twice the radius of the circle, so

$\text{Diameter}=2\times 5=10\ cm$

Since the diagonal is shorter than the diameter, the square can fit into the circle without touching the circle.

6 0

3 years ago

Which of the following describes independent events A and B?

galina1969 [7]

I think it is going to be 3. please let me know if you need more information

4 0

3 years ago