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
bulgar [2K]
3 years ago
5

A triangle has an area of 54 m 2 2 and a height of 9 m. How long is the base of the triangle? Enter your answer in the box.

Mathematics
1 answer:
defon3 years ago
3 0
The base is 12 because 9 x 12 =108 but then you have to divide it by two which get you 54m^2
You might be interested in
Use a net to find the surface area of the right triangular prism shown below:
AnnZ [28]
I don't exactly know what a net is, but I can figure out the surface area (maybe). When you put this pattern together, you have to make a couple of assumptions.
First of all the 2 triangles are connected to a base that's 8 by 13. 
Base
The area of the base = 8 * 13 = 104 square feet.

Two Triangles.
The area of any triangle is 
Area = 1/2 b * h
Area = 1/2 *12 * 5
Area = 30 square feet. There are 2 triangles so ...
The total area of both is 60 square feet.

Overlap
Now we come to the tough part.  how big is it from the first dotted line to the second one?
The answer is 5. But why? Well the 5 comes from the the length of the side that has to be covered by this pattern. The 5 is part of the triangle. 

How far across is the dotted line? The answer is 8. Why again? That's the width of the whole prism or pattern.
So the area between the two dotted lines is 5 * 8 = 40

Finally the area over the 12. 
The question is how far is it from the second dotted line to the last boundary? The answer is 12. And it's width is 8
So the area = 12 * 8 = 96

Total area
96 + 60 + 40 + 104 = 300 square feet. 
4 0
3 years ago
The length of a screw produced by a machine is normally distributed with a mean of 0.65 inches and a standard deviation of 0.01
Makovka662 [10]
Notice it is +/-4 times standard deviation (0.65-0.04 = 0.61, 0.69-0.04=0.65)

That's almost everything. So (D) is the answer.
<span>99.993666</span>%
3 0
3 years ago
Read 2 more answers
What is the relationship between the lines with the following equations? 2x+8y=16 y=4x+7
dimulka [17.4K]
They are perpendicular because when you change 2x+8y=16 to slope intercept form it becomes y= -1/4x+2 and the slope (-1/4) is the negative reciprocal of 4, which is the slope for your other equation.

Please comment if you have any questions :)

6 0
3 years ago
Write the following comparison as a ratio reduced to lowest terms.<br><br> 88 quarters to 30 dollars
LUCKY_DIMON [66]
You need to find common factors. The factors of 88 are 1 and 88, 2 and 44, 4 and 22, and 8 and 11. The factors of thirty are 1 and 30, 2 and 15, and 5 and 6. The greatest common factor is 2 so the ratio is 44:15.
6 0
3 years ago
Given H = f(t) where H is the height in meters of an object and t is the time in seconds since it was launched, which of the fol
dangina [55]

Answer:

Recall that the height of the object, in meters, is a function of elapsed time, in seconds. Thus what f(8)=12 means is that the object is at a height of 8 meters when 12 seconds have passed since its launch.

3 0
3 years ago
Other questions:
  • Y= x^2 + 2 Find the slope of tangent line to graph when x= -1
    13·1 answer
  • A Norman window has a length of 3 ft and width of 4 ft find the area of the rectangular piece of the glass
    8·1 answer
  • Which property of multiplication is shown below?
    10·2 answers
  • The diagonals of a trapezoid are _____ equal.<br> *Always<br> *Never<br> *sometimes
    14·1 answer
  • A railway engine starts shunting wagons by first going 1000m north of railway station. It reverses and travels 1250m and then it
    10·1 answer
  • B) Is the relation a function? Use the vertical line test to decide.
    8·1 answer
  • Seven cereal bars are shared equally by 3 students. How many does each student receive?I really need help and my teacher won't h
    14·1 answer
  • I need help urgent Please will give brainly
    8·1 answer
  • Evaluate the function.<br> f(x) = –22 – 9x + 20<br> Find f(9)
    6·1 answer
  • What is the value of y when y + 2.9 = 11?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!