All categories

2 years ago

Find the area of the following triangle. Round your answers to the nearest tenth. a = 44 in, b = 66 in, c = 88 in

1 answer:

swat322 years ago

6 0

P=44+66+88/2=198/2=99
With Heron formula:
S=root 99*(99-44)(99-66)(99-88)=root 99*55*33*11=root 1976535= 1405.8929.....=1405.9

You might be interested in

Find the product.<br><br> 2a2(5b2+3ab+6a+1)<br><br> PLEASE HELP!!!! ASAP!!!

Anon25 [30]

Answer:

$10a^{2} b^{2} +6a^{3} b+12a^{3} +2a^{2}$

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

What type of coordinate system are polar equations graphed in?

dybincka [34]

The polar coordinate system.

6 0

3 years ago

An educational psychologist wishes to know the mean number of words a third grader can read per minute. She wants to make an est

amid [387]

Answer:

(38.1,88.6)

Step-by-step explanation:

We are given the following in the question:

Sample mean, $\bar{x}$ = 38.3

Sample size, n = 695

Alpha, α = 0.05

Population standard deviation, σ = 3.6

95% Confidence interval:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

$38.3 \pm 1.96(\frac{3.6}{\sqrt{695}} ) = 38.3 \pm 0.267 = (38.033,38.567) \approx (38.1,88.6)$

8 0

2 years ago

Please help meeee!!!!!!!!

ivanzaharov [21]

Answer:

$840$

Step-by-step explanation:

This is a good example of permutations. For the first slot on his shelf, Dylan has 7 trophies to choose from. Then 6, 5, and so on. Since he is only fitting 4 trophies on his shelf, we only continue until we have the slots filled. Thus, we have $7\cdot 6 \cdot 5\cdot 4=\boxed{840\:\text{ways}}$ to do so.

*Note: We do not divide by $4!$ because in this case, order matters. A different order of the same four books still produces different arrangements, so the order matters.

6 0

2 years ago

Your family went to a pancake house for breakfast and spent $34 your family decides to leave at 18% tip how much is the tip? Wha

NikAS [45]

Answer:

$40.12.

Step-by-step explanation:

We have been given that your family went to a pancake house for breakfast and spent $34 your family decides to leave at 18% tip how much is the tip. We are asked to find the total amount of bill with the tip.

The total amount of bill with the tip will be cost of breakfast plus 18% of cost of breakfast.

$\text{The total amount of bill with the tip}=\$34+\$34\times \frac{18}{100}$

$\text{The total amount of bill with the tip}=\$34+\$34\times 0.18$

$\text{The total amount of bill with the tip}=\$34+\$6.12$

$\text{The total amount of bill with the tip}=\$40.12$

Therefore, the total amount of the bill will the tip would be $40.12.

6 0

3 years ago