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
Natali5045456 [20]
3 years ago
11

Find the area, in square feet, of a triangle whose base is 42⁄3 feet and whose altitude is 84⁄7 feet. A. 135⁄21 B. 20 C. 40 D. 2

610⁄21
Mathematics
2 answers:
Mnenie [13.5K]3 years ago
8 0

Answer: B. 20

Step-by-step explanation:

Hi to answer this question we have to apply the next formula:

Area of a triangle: base x height (altitude) x 1/2

Replacing with the values given:

A =4 2/3 x 8 4/7 x 1/2

A= (4x3+2)/3 x (8x7+4)/7 x 1/2

A = 14/3 x 60/7 x 1/2 = 840/42=20 square feet

So, the correct option is B.20

Feel free to ask for more if needed or if you did not understand something.

CaHeK987 [17]3 years ago
5 0

Answer:

Option B. 20\ ft^{2}

Step-by-step explanation:

we know that

The area of a triangle is equal to

A=\frac{1}{2}bh

we have

b=4\frac{2}{3}\ ft

h=8\frac{4}{7}\ ft

Convert mixed numbers to an improper fractions

b=4\frac{2}{3}\ ft=\frac{4*3+2}{3}=\frac{14}{3}\ ft

h=8\frac{4}{7}\ ft=\frac{8*7+4}{7}=\frac{60}{7}\ ft

substitute the values

A=\frac{1}{2}(\frac{14}{3})(\frac{60}{7})\\ \\A=\frac{14*60}{2*3*7}\\ \\A=\frac{840}{42} \\ \\A=20\ ft^{2}

You might be interested in
A lava lamp is an example of which type of heat transfer?
ki77a [65]

Answer:

C

Brainlest

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Classify the following triangle. Check all that apply.
Fofino [41]

Answer:

f

hopee this is right if yes tell me


4 0
3 years ago
Read 2 more answers
The reference angle for an angle whose measure is 260° is
Maurinko [17]
So, 260 degrees is in the 3rd quadrant, only 10 degrees away from being straight down at 270 degrees....if you have a xy axis, and draw a line segment from the origin into the 3rd quadrant, then at the endpoint of that segment, draw back up to the x-axis, your reference angle is the angle that the line segment makes with the x-axis (in this case, the negative portion of the x-axis), which is 80 degrees....since 260 degrees is 80 degrees past 180.

So your answer is 80 degrees.

Hope this helps,

Brian
8 0
3 years ago
$2.50 for 5 ounces what is the unit rate of that
daser333 [38]
1.<span>5 ounces for $2.50
2.divide both of the numbers by 5
3.you get 1 ounce for 0.50  cent</span>
6 0
3 years ago
Read 2 more answers
A flower pot’s base has six sides that are all the same length. Each side measures x−6x-6 units. The base’s perimeter is 78 unit
NemiM [27]

Answer: The answer is x = 19.

Step-by-step explanation:  Given that a flower pot has a base with six equal sides of measurement (x - 6) units. We are to find the value of the unknown quantity 'x' if the perimeter of the base is 78 units.

We know that the perimeter of a polygon is given by the sum of the lengths of all the sides of the polygon.

Since each side of the six-sided base is (x - 6) units, so its perimeter will be

6\times(x-6)~\textup{units}.

According to the question, we have

6(x-6)=78\\\\\Rightarrow x-6=13\\\\\Rightarrow x=19.

Thus, the value of 'x' is 19 units.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Square GYTD has vertices G(−4,3) , Y(0, 3) , T(0,−1) and D(−4,−1) . ​ Square GYTD ​ is translated 2 units left and 2 units up to
    9·1 answer
  • What is the length in centimeters??
    14·1 answer
  • Heidi's mom made flower arrangements for a party.She made 4 times as many rose arrangements as tulips arrangements.Heidi's mom m
    7·1 answer
  • A battery manufacturer makes batteries that have a failure rate of .015. That is, 15 out of each 1,000 batteries are defective.
    13·1 answer
  • What percent of 100 is 79?
    11·2 answers
  • John Cell bookbags.He sells a leather bag for $69.80 and the sales tax is 6% of the sale price about how much is a sales tax on
    15·1 answer
  • If np &gt;5 and nq&gt;5 estimate P (fewer than 4) with n=13 p=0.4 by using normal distribution as an approximate to the binomial
    13·1 answer
  • How do I simplify this expression <br><br>(-3)(4x - 12)​
    6·2 answers
  • What type of angle is this pls hurry!
    7·1 answer
  • 12)<br> Which graph represents the solution for the equation-x-1=-x+ 2?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!