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goldfiish [28.3K]
3 years ago
8

Can someone help me with 21 and 22 ??

Mathematics
2 answers:
liberstina [14]3 years ago
7 0
21. H) Subtract 4 from 9
22. D) comutative property of multiplication because we got two numbers multiplied that comuted
inna [77]3 years ago
3 0
Subtract 4 from 9 because parentheses first.
Commutative property because it just moved around
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Determine whether each of the following LTIC systems is i) BIBO stable, ii) asymptotically stable, and iii) marginally stable. E
nata0808 [166]

Answer:

Check the explanation

Step-by-step explanation:

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5 0
3 years ago
Factor x3-2x2-9x+18 completely if(x+3) is a factor
Charra [1.4K]

Factor x^3 -2x^2-9x+18

= x^2(x - 2) - 9(x - 2)

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6 0
3 years ago
Read 2 more answers
ASAP I NEED HELP
alexdok [17]

The vertex of this parabola is at (3,-2). When the x-value is 4, the y-value is 3: (4,3) is a point on the parabola. Let's use the standard equation of a parabola in vertex form:

y-k = a(x-h)^2, where (h,k) is the vertex (here (3,-2)) and (x,y): (4,3) is another point on the parabola. Since (3,-2) is the lowest point of the parabola, and (4,3) is thus higher up, we know that the parabola opens up.

Substituting the given info into the equation y-k = a(x-h)^2, we get:

3-[-2] = a(4-3)^2, or 5 = a(1)^2. Thus, a = 5, and the equation of the parabola is

y+2 = 5(x-3)^2 The coefficient of the x^2 term is thus 5.

7 0
3 years ago
A number is less than half of another number written in a equation
Amanda [17]

Answer:

x<1/2(y)

Step-by-step explanation:

call the number x, and the other number y, the answer is:

x<1/2(y)

5 0
3 years ago
For the data shown in the stem-and-leaf plot, what is the effect on the mean and median of adding the value 10 to the data set?
kari74 [83]
The mean is decreased by 2
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3 years ago
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