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mina [271]
3 years ago
12

If x+y=76 and x-y=38, how much is (x/y)exponent 3

Mathematics
1 answer:
hram777 [196]3 years ago
7 0
This question is hard try using photomath

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One number is 4 more than another number. Four times the smaller number is three less than three times the larger number. Find t
xxMikexx [17]
Let X = smaller
Number. Then, x+4 = larger number
4x = 3(X+4) -3
4X = 3x + 12 - 3
X = 9
3 0
3 years ago
Suppose an airplane climbs 15 feet for every 40 feet it moves forward. What is the slope of this airplanes ascent?
Goryan [66]

Answer:

3/8

Step-by-step explanation:

Slope is the same as rise over run, or y/x. In this case, rise over run is 15 over 40, or 15/40. Simplified, this is 3/8.

8 0
3 years ago
What is the completely factored form of f(x)=x3+5x2+4x−6?
Gre4nikov [31]
f(x)=x^3+5x^2+4x-6
f(-3)=(-3)^3+5(-3)^2+4(-3)-6=0\implies x+3\text{ is a factor of }f(x)

Synthetic division yields

-3  |  1   5   4   -6
.    |      -3  -6    6
- - - - - - - - - - - - -
.    |  1   2  -2    0

which translates to

\dfrac{x^3+5x^2+4x-6}{x+3}=x^2+2x-2

with remainder 0. Now by the quadratic formula,

x^2+2x-2=0\implies x=\dfrac{-2\pm\sqrt{2^2-4(1)(-2)}}2=-1\pm\sqrt3

and so

f(x)=x^3+5x^2+4x-6=(x+3)(x-(-1+\sqrt3))(x-(-1-\sqrt3))
3 0
3 years ago
PLEASE HELP!!
jonny [76]

Answer:

  • A. f(n) = (n + 1)^2 – 1

Step-by-step explanation:

Figure 1

  • 3 = 4 - 1 = 2² - 1 = (1 + 1)² - 1

Figure 2

  • 8 = 9 - 1 = 3² - 1 = (2 + 1)² - 1

Figure 3

  • 15 = 16 - 1 = 4² - 1 = (3 + 1)² - 1

<u>The function is:</u>

  • f(n) = (n + 1)² - 1
7 0
3 years ago
The figure is cute into 12 equal pieces shade 3/4 of the figure
netineya [11]

Shade in 9 boxes

12÷4= 3 (This is 1 fourth)

3×3=9 (This is 3 fourths)

6 0
4 years ago
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