1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stiks02 [169]
3 years ago
6

Idk what the question meant. How would you do the area of a triangle

Mathematics
1 answer:
saveliy_v [14]3 years ago
7 0

Answer:

750 sq. ft

Step-by-step explanation:

To understand the area of a triangle, we can start with the area of a rectangle. The area of a rectangle with some length (which I'll call L) and some width (which I'll call W) is just the product of those two values, L × W. How does this carry to triangles? Well we can take any triangle we want and draw a rectangle around it, using the base of the triangle as one of the rectangle's sides.

Now, the key here is to cut that original rectangle into two smaller ones, starting at the top point of the triangle. Notice now that <em>half </em>of the left rectangle is taken up by the orange triangle, and <em>half </em>of the right one as well. Putting those two together, we can say that the big orange triangle takes up <em>exactly half</em> of the green rectangle, or in other words, its area is (L × W) ÷ 2. Of course, when we talk about triangles, we use the words "base" (B) and "height" (H) rather than length and width, so you could also say that the area of a triangle is (B × H) ÷ 2.

Taking this into our problem, we're given a base of 100 ft and a height of 15 feet; using our newly-discovered equation, we find its area to be

(100 × 15) ÷ 2 = 1500 ÷ 2 = 750 sq. ft.

You might be interested in
Use mental math for 122+306
poizon [28]
306+122=428
Because you add 6 & 2 in the ones place which is 8.
then 2 and 0 which is 2.
finally 1 and 3 which is 4


4 0
3 years ago
The U.S. Dairy Industry wants to estimate the mean yearly milk consumption. A sample of 21 people reveals the mean yearly consum
PIT_PIT [208]

Correct question is;

The U.S. Dairy Industry wants to estimate the mean yearly milk consumption. A sample of 21 people reveals the mean yearly consumption to be 74 gallons with a standard deviation of 16 gallons.

a. What is the value of the population mean? What is the best estimate of this value?

b. Explain why we need to use the t distribution. What assumption do you need to make?

c. For a 90 percent confidence interval, what is the value of t?

d. Develop the 90 percent confidence interval for the population mean.

e. Would it be reasonable to conclude that the population mean is 68 gallons?

Answer:

A) Best estimate = 74 gallons

B) because the population standard deviation is unknown. The assumption we will make is that the population follows the normal distribution.

C) t = 1.725

D) 90% confidence interval for the population mean is (67.9772, 80.0228) gallons

E) Yes

Step-by-step explanation:

We are given;

Sample mean; x' = 74

Sample population; n = 21

Yearly Standard deviation; s = 16

A) We are not given the population mean.

So the closest estimate to the population mean would be the sample mean which is 74.

B) We are not given the population standard deviation and as such we can't use normal distribution. So what is used when population standard deviation is not known is called t - distribution table. The assumption we will make is that the population follows the normal distribution.

C) At confidence interval of 90% and DF = n - 1 = 21 - 1 = 20

From t-tables, the t = 1.725

D) Formula for the confidence interval is;

x' ± t(s/√n) = 74 ± 1.725(16/√21) = 74 ± 6.0228 = 67.9772 or 80.0228

Thus 90% confidence interval for the population mean is (67.9772, 80.0228) gallons

E) 68 gallons lies within the range of the confidence interval, thus we can say that "Yes, it is reasonable"

8 0
3 years ago
X=−12, y=−1/6<br> The equation is y= <br> .<br><br> When x=3, y= <br> .
Vera_Pavlovna [14]

Answer:

y=-12,y=-1/6

Step-by-step explanation:

there

3 0
2 years ago
18 of the 30 horses were blue what percent of the Horseshoe blue
Minchanka [31]
18 divided by 30 equals .6
0.6=60%
Hope this helps and please give brainliest!
6 0
3 years ago
12/16 - 7/18 in simplest form​
Ivan

Answer:

The answer is \frac{13}{36}

Step-by-step explanation:

The formula is:

\frac{a}{b} -  \frac{c}{d}  =  \frac{ad - bc}{bd}

In this case :

\frac{12}{16}  - \frac{7}{18} =  \frac{12 x 18 - 16x17}{16x18} = \frac{216 -112 }{288} = \frac{104}{288}

To get the simples form notice both 104 and 288 are divisible by 8 and 104/8 = 13 and 288/8 = 36.

Thus \frac{104}{288} = \frac{13}{36}

6 0
3 years ago
Other questions:
  • Reginald's cement truck can travel up to 300 miles on a single tank of gas. Reginald has driven 246 miles so far today, and now
    8·1 answer
  • Solve −4x3 (2x2 −9x2 ) =
    13·2 answers
  • Which are the roots of the quadratic function f(b) = b2 – 75? check all that apply. b = 5 square root of 3 b = -5 square root of
    7·1 answer
  • Add the mutiple fraction then simply the answer use #/# format 1/3+1/4+1+9=
    5·1 answer
  • Kelly has a muffin recipe that calls for
    13·1 answer
  • Write an equation of a line with the given slope and y-intercept. m = 1, b = 4 a) y = x – 4 b) y = –1x + 4 c) y = x + 4 d) y = 4
    7·2 answers
  • Y = <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B5%7D%7B2%7D%20" id="TexFormula1" title=" \frac{5}{2} " alt=" \frac{5}{2} " al
    5·1 answer
  • 1.) (7.RP.3) Tracy started a savings account that is set up so that the simple interest earned on the investment is moved into a
    13·1 answer
  • Which side lengths form a right triangle 30 POINTS!!
    6·1 answer
  • Find the perimeter of the parallelogram *<br> 10 inches<br> 5 inches<br> 8 inches
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!