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7nadin3 [17]
2 years ago
12

The hypotenuse of a right triangle is three times the length of one of its legs. The length of the other leg is four feet. Find

the
lengths of the three sides of the triangle. For non-integer answer(s), round your answer(s) to the nearest tenth.
Mathematics
1 answer:
Elis [28]2 years ago
4 0

Answer:

Step-by-step explanation:

Let the other leg = x

x^2 + 4^2 = (3x)^2

x^2 + 4^2 = 9x^2

4^2 = 9x^2 - x^2

16= 8x^2

16/8 = x^2

x^2 = 2

x = sqrt(2)

The lengths of the sides

x = sqrt(2)      

other side =4

hypotenuse = 3*sqrt(2)

x = 1.4

other side= 4

hypotenuse = 3*1.4142

hypotenuse = 4.2

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Write an exponential function in the form y=ab^x that goes through points (0,12) and (3,6144)
skad [1K]

Given:

An exponential function goes through points (0,12) and (3,6144).

To find:

The exponential function.

Solution:

The general exponential function is:

y=ab^x           ...(i)

The function goes through point (0,12). Substituting x=0,y=12, we get

12=ab^0

12=a

The function goes through point (3,6144). Substituting a=12, x=3,y=6144 in the general exponential function, we get

6144=12b^3

\dfrac{6144}{12}=b^3

512=b^3

512^{\frac{1}{3}}=b

8=b

Putting a=12,b=8 in (i), we get

y=12(8)^x

Therefore, the required exponential function is y=12(8)^x.

3 0
2 years ago
Question: The slope of the graph of the equation Y=2x-2 is 2. What is the y-intercept <br>​
11Alexandr11 [23.1K]

Answer:

final answer is simply -2

Step-by-step explanation:

The graph crosses the y axis at -2 on the vertical number line. The y intercept as an ordered pair is (0,-2). The x coordinate is always 0 for the y intercept.

4 0
3 years ago
What is the quotient of 109.2 / 60
pogonyaev

Answer:

1.82

Step-by-step explanation:

\frac{7  x 13}{2 x 5^{2} } = 1\frac{41}{50} = 1.82

5 0
2 years ago
Write the number 3,2 and 8 in a addition sentence. Show two more ways to find the sum
Kisachek [45]
1.(3 + 2) + 8

2.5 + 8
4 0
3 years ago
Please answer correctly !!!!!!!!!! Will mark brainliest !!!!!!!!!!!!
Leto [7]

Answer:

see explanation

Step-by-step explanation:

(1)

Given

g(r) = (r + 14)² - 49

To obtain the zeros, let g(r) = 0 , that is

(r + 14)² - 49 = 0 ( add 49 to both sides )

(r + 14)² = 49 ( take the square root of both sides )

r + 14 = ± \sqrt{49} = ± 7 ( subtract 14 from both sides )

r = - 14 ± 7, then

r = - 14 - 7 = - 21 ← smaller r

r = - 14 + 7 = - 7 ← larger r

(2)

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

g(r) = (r + 14)² - 49 ← is in vertex form

with vertex = (- 14, - 49 )

4 0
2 years ago
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