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allochka39001 [22]
3 years ago
14

I need help ASAP!!!!!

Mathematics
1 answer:
navik [9.2K]3 years ago
5 0
The answer is 10.8. 22-11.2 = 10.8
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If there are 42 boys and 54 girls in a room, fill out all of the possible ratios of boys to girls that could be made.
denpristay [2]
54:42 54/42 54,42 that is the answer
5 0
3 years ago
Is (1,2) a solution of the system y>2x and x+y< 3
vovikov84 [41]

Answer: No it is <u>not</u> a solution

Why not? Because it doesn't make the first inequality true. Replace x with 1 and y with 2

y > 2x

y > 2*1 ... replaced x with 1

2 > 2*1 .... replaced y with 2

2 > 2 .... which is a false inequality statement since 2 is not larger than itself

3 0
4 years ago
Read 2 more answers
The equation of the circle whose center is at (3, 7) and whose radius is 6 is a. (x + 3)² + (y + 7)² = 6 b. (x + 3)² + (y + 7)²
kicyunya [14]
\bf \textit{equation of a circle}\\\\ &#10;(x- h)^2+(y- k)^2= r^2&#10;\qquad &#10;center~~(\stackrel{3}{ h},\stackrel{7}{ k})\qquad \qquad &#10;radius=\stackrel{6}{ r}&#10;\\\\\\&#10;(x-3)^2+(y-7)^2=6^2\implies (x-3)^2+(y-7)^2=36
8 0
4 years ago
Which linear function is represented by the graph?​
Anna71 [15]

Answer:

y\leq\frac{1}{3}x-4; B

Step-by-step explanation:

The blue is in the y-values where it is more directed towards the negative y- values.

y=mx+b

\frac{1}{3} slope= because rise is 1 and 3 runs and to find slope it is \frac{rise}{run}

-4 is the "b" in y=mx+b where b represents the y-intercept and looking at the graph, the line intercepts at -4  

4 0
3 years ago
The identity function on A, idA: A →A is defined by idA(a) = a.
alexandr402 [8]

These are just sketches, you should polish them yourself. In analogy to relations, I will write aFb to mean the statement f(a) = b.

(a) aFa, so f(a) = a. This is the definition of the identity function.


(b) aFb => bFa, so f(a) = b and f(b) = a. Therefore f(f(a)) = a by substitution, and hence f^2 is the identity function.

(c) aFb and bFc => aFc. So f(f(a)) = c, and f(a) = c. Thus f(c) = c, which is the identity. Make sure you sort out the im(F) stuff when you clean this up.

7 0
2 years ago
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