Height of a triangle with base 5m and area 20m2
Answers
Start with the formula for the area of a triangle
Plug in , , and
Multiply both sides by 2
Distribute
Subtract 36 from both sides
Factor the right side (note: if you need help with factoring, check out this solver)
Now set each factor equal to zero:
or
or Now solve for x in each case
So our possible answers are
or
However, since a negative height doesn't make sense, our only solution is
So the height is 9 m
Now subtract 5 from the height to get the base
So the base is 4 m
Check:
Start with the formula for the area of a triangle
Plug in , , and
Multiply
Divide. Since the two sides of the equation are equal, this verifies our answer.
A=1/2bh
Then, plug in your known numbers
20m2=1/2h(5m)
What I do next, is I work backwards by dividing the are by 1/2, which equals 40. All that is left to do, is divide this number, 40, by 5 to find the height.
40/5=8
Therefore, the height of the triangle is 8m
Related Questions
Say two and count on by tens to 92
What is 9/20 as a decimal and percent?
marie wants to space markers evenly along a 5-mile race course .she puts a marker at the start line. how far apart should the 21 markers be?
What is times as much as 0.3
Answers
1). Recall the formula for the volume of a cylinder:
Volume = (pi) x (radius of the round end)² x (length or height) .
2). Gather together the number you'll use for pi, the radius of the
cylinder's round end, and its length or height. Make sure that the
radius of the round end and the length or height are in the same units.
If they're not, then convert something so that they are.
3). Write each number into its place in the formula.
4). Perform the indicated operations. The final number is the
volume of your cylinder.
h= height
you square the radius and then multiply by the
Answers
Answer:
Option B. 525 students.
Step-by-step explanation:
The school enrollment for Oakwood Elementary is shown in the graph.
The given graph is representing a linear function. So we will form the function first to calculate the enrollment in 2012.
Equation of the given line in the graph will be in the form of y = mx + c
where m is the slope and c = y- intercept
y-intercept = 300
this line passes through two ordered pairs (0, 300) and (1, 325)
Now the slope m =
m =
Therefore, equation representing the situation will be y = 25x + 300
Now we will put the value of x = year 2012 - year 2003 = 9 years
y = 25×9 + 300
y = 225 + 300
y = 525
Option B. 525 is the correct option.
Answer:
The answer is 525
A) 3/8
B) 10/21
C) 11/27
D) 8/35
E) 7/37
Answers
3/8 = 0.375
10/21 = 0.4761904761904761
11/27 = 0.407407407407407
8/35 = 0.2285714285714286
7/37 = 0.189189189189189
both 11/27 and 7/37 have three digits that repeat in it's decimal equivalent
10/21 has six digits that repeat
Answers
Answer:
x = 12
Step-by-step explanation:
To solve this equation, simply take the denominator from the fraction on the left side of the equation to the right side of the equation and multiply it with the constant.
Also, do not forget to multiply the signs as both the numbers are negative so the number will become positive after multiplication:
×
Therefore x is equal to 12.
x=-3(-4)
x=12
The reciprocal is
Answers
Answer: 3/2
Step-by-step explanation: to find the reciprocal of a fraction, we simply flip the fraction. In other words, we will put the denominator in the position of the numerator and the old numerator in the position of the denominator.
Image provided.
2/3
reciprocal means flipping over the fraction
answer:
The reciprocal is 3/2