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grandymaker [24]
1 year ago
7

Round to the nearest tenth wa hit is the perimeter of the triangle

Mathematics
1 answer:
klio [65]1 year ago
6 0

Answer:

D. 11.8 cm

Step-by-step explanation:

This triangle is a 30°-60°-90° triangle. There is a shortcut to find the lengths of the sides of a 30°-60°-90° triangle. The longest side is the hypotenuse. The longest side is double the shortest side or, the shortest side is half the longest side. Here the longest side is 5, so the short leg (shortest side) is 2.5

The other shortcut is that the longer leg is the

short leg×sqroot3

Here, the short leg is 2.5, so the long leg is 2.5×sqroot3

Perimeter is all the sides added together.

5 + 2.5+ 2.5×sqrt3

Do the times first.

5 + 2.5 + 4.3

= 11.8

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If w=10, x=5, and y=6, what is the surface are of the figure?
Olin [163]

Answer:

hello!!!!

the answer is 280

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please read the explanation.. it always helps...

Step-by-step explanation:

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if so.... then...

2(10*5 + 10*6 + 5*6)= 280

7 0
2 years ago
Hey, please help me, I'm fairly confused with this question.
Sati [7]

Answer:

10 times.

Step-by-step explanation:

The number in the tenths place is 90. The number in the ones place is 9. 9 times 10 is 90.

5 0
2 years ago
2 tens plus 13 ones
Anton [14]

Hello from MrBillDoesMath!

Answer:

33

Discussion:

2 tens = 2 * 10 = 20

13 ones = 13 * 1  13

=> 2 tens + 13 ones  = 20 + 13 = 33

Thank you,

MrB

3 0
3 years ago
Read 2 more answers
the population P (t) of a culture of bacteria is given by P (t) =-1710t +92,000t+10,000, where t is the time in hours since the
Akimi4 [234]

The question might have some mistake since there are 2 multiplier of t. I found a similar question as follows:

The population P(t) of a culture of bacteria is given by P(t) = –1710t^2+ 92,000t + 10,000, where t is the time in hours since the culture was started. Determine the time at which the population is at a maximum. Round to the nearest hour.

Answer:

27 hours

Step-by-step explanation:

Equation of population P(t) = –1710t^2+ 92,000t + 10,000

Find the derivative of the function to find the critical value

dP/dt = -2(1710)t + 92000

         = -3420t + 92000

Find the critical value by equating dP/dt = 0

-3420t + 92000 = 0

92000 = 3420t

t = 92000/3420 = 26.90

Check if it really have max value through 2nd derivative

d(dP)/dt^2 = -3420

2nd derivative is negative, hence it has maximum value

So, the time when it is maximum is 26.9 or 27 hours

5 0
2 years ago
Describe a real world situation that uses the variable x the expression 1/2x when the value of x is not known.
Airida [17]
Um well its quite common when going to the store and something is 50% off
6 0
3 years ago
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