Find the circumference of the circle. Round to the nearest hundredth. Diameter 7 mm

Mathematics

1 answer:

garri49 [273]3 years ago

3 0

Answer:

C=21.99mm

Step-by-step explanation:Hope this helps!

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Given:

iragen [17]

AC = BC gives you one pair of congruent sides.
<3 = <4 gives you a pair of congruent angles.

You already have SA.
Maybe you can add another pair of congruent angles to use ASA,
or maybe you can add another pair of congruent sides to use SAS.

Now we look at the drawing and see what we can add to what we have.
We don't know anything about angles A and B to use ASA.

We see side CM which is a side of both triangles.
A segment is congruent to itself. Since side CM is a side of both triangles, that is the other pair of congruent sides.

We can use SAS.

Answer: SAS

4 0

3 years ago

Read 2 more answers

I WILL GIVE BRAINLIEST Suppose that is $1200 initially invested in an account at a fixed interest rate, compounded continuously.

lbvjy [14]

<h3>Answer: 2.93</h3>

Note: The percent sign is already taken care of.

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Explanation:

The continuously compounded interest formula is

$A = Pe^{rt}\\\\$

where,

A = 1431 = account balance t years into the future
P = 1200 = deposit
e = special constant roughly equal to 2.718
r = unknown interest rate and what we want to find
t = 6 years

Since the unknown variable r is in the exponent, we'll need logs to solve it. A handy phrase is "if the exponent is in the trees, log it down to find it". By "log it down" I mean in terms of lumber, and not a journal.

We could use any base logarithm, but it's handy to use the special base 'e' log. This is the natural logarithm abbreviated as Ln.

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Solving for r involves these steps

$A = Pe^{rt}\\\\1431 = 1200*e^{r*6}\\\\e^{6r} = 1431/1200\\\\e^{6r} = 1.1925\\\\6r = \text{Ln}(1.1925)\\\\r = \frac{1}{6}*\text{Ln}(1.1925)\\\\r \approx 0.02934199063006\\\\r \approx 0.0293\\\\$