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3 years ago

Why is there no commutative property for subtraction or division? Show examples.

Mathematics

1 answer:

Andrei [34K]3 years ago

6 0

If you do 17 - 15 the answer will be positive but do the reverse and u get a negitive same for division

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Which of the following rational functions is graphed below?

nata0808 [166]

Answer:

Step-by-step explanation:

The function's zeroes results in vertical asymptotes. As one is at x = 1 and the other at x = -2, the zeroes must be (x-1) and (x+2), which only B contains in the numerator.

5 0

2 years ago

What are the solution(s) of x^2-4=20?

Pie

$x^2-4=20\qquad|+4\\\\x^2=24\to x=\pm\sqrt{24}\\\\x=-\sqrt{4\cdot6}\ \vee\ x=\sqrt{4\cdot6}\\\\x=-2\sqrt6\ \vee\ x=2\sqrt6$

4 0

2 years ago

Find the value of x.

Colt1911 [192]

Answer:

x = 16 2/3

Step-by-step explanation:

The altitude divides the triangle into similar triangles. We can form the ratio between the hypotenuse and the short leg for two of the triangles. Those ratios will be a proportion:

10/6 = ((x-6) +6)/10

100/6 = x . . . . . multiply by 10 and simplify

x = 16 2/3

7 0

2 years ago

Which expression is equivalent to 4√147 <br> A. 28√3 <br> B. 12√7 <br> C. 3√7

grin007 [14]

Answer:

(A) 28 squared 3

Step-by-step explanation:

8 0

2 years ago

Help me please..............

larisa [96]

Answer:

a.)48

b.)528

c.)448

Step-by-step explanation:

a.)8x8=64. 4x4=16 64-16=48

b.)48(from a. answer)x11=528

c.)11x8(x2 for the other side)=176. 11x4x4=176.

48x2=96. 176+176+96=448

3 0

2 years ago