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Doss [256]
3 years ago
12

Find the area of an equilateral triangle with apothem 7 cm. Round to the nearest whole number.

Mathematics
1 answer:
Burka [1]3 years ago
5 0
The answer is 255cm<span>²</span>
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Find mZP.<br> P<br> 26<br> 2./13<br> R<br> mZP =<br> I’m confused
kondaur [170]

Answer:

45 degrees

Step-by-step explanation:

Since we have a right triangle, we use the appropriate trigonometric ratio

The angle marked P faces QR and that makes it the opposite side

PR faces the right angle and that makes it the hypotenuse

The trigonometric ratio that links the opposite and the hypotenuse is the sine

It is the ratio of the opposite to the hypotenuse

Thus;

sin P = √26/2 √13

Sin P = √2/2

P = arc sin √2/2

P = 45 degrees

8 0
3 years ago
A number n is no less than -3
serg [7]

Answer:

this means that n = -3 ,-2, -1, 0 1 2 3 4 5 6 7 8 9 e.t.c.

Step-by-step explanation:

4 0
3 years ago
  Sarah Wiggum would like to make a single investment and have ​$1.7 million at the time of her retirement in 34 years. She has
vovangra [49]

Answer:

Sarah has to invest $502,958.58 today.

Step-by-step explanation:

This is a simple interest problem.

The simple interest formula is given by:

E = P*I*t

In which E is the amount of interest earned, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time.

After t years, the total amount of money is:

T = E + P

In this question:

t = 35, I = 0.07, T = 1700000

She has to invest P today.

T = E + P

1700000 = E + P

E = 1700000 - P

So

E = P*I*t

1700000 - P = P*0.07*34

3.38P = 1700000

P = \frac{1700000}{3.38}

P = 502958.58

Sarah has to invest $502,958.58 today.

8 0
3 years ago
The chess club members bought tickets to a tournament for $15. how much would they have paid if all 9 members went? pls explain
nydimaria [60]

Answer:

9 X 15 = $135

Step-by-step explanation:

Multiply the equation.

5 0
3 years ago
Help, I'm doing rhis problem and need help checking if I'm right.
umka2103 [35]
To me it looks like your right
7 0
3 years ago
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