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nadezda [96]
3 years ago
9

Please help me with this homework

Mathematics
1 answer:
d1i1m1o1n [39]3 years ago
8 0
22 should be the right answer
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A function, f, is defined by the set {(2,3), (4,7),(-1,5)}.
Kitty [74]

Answer:

{(3,2), (7,4),(5,-1)}.

Step-by-step explanation:

To find the points reflected through y=x, you are really being asked to find the inverse relation. That means we are just swapping x and y per point; like (a,b) to (b,a).

So (2,3) when reflected through y=x becomes (3,2).

(4,7) when reflected through y=x becomes (7,4).

(-1,5) when reflected through y=x becomes (5,-1).

So the inverse relation is:

{(3,2), (7,4),(5,-1)}.

3 0
2 years ago
Factor the polynomial by its greatest common monomial factor.<br> 365 + 1564 - 1867
Oliga [24]

Answer:

Step-by-step explanation:

Step-by-step explanation:look at the GCF and factor.

Both 3 and 15 share the GCF of 5. And both expressions share the two variables x and y.

6 0
2 years ago
Assume that adults have iq scores that are normally distributed with a mean of 100100 and a standard deviation of 15. find the t
anastassius [24]
The bell curve attached below shows the normal distribution of the data.

We are looking the value of X such as the area to its left gives the probability of 0.75

We first need the z-score which we can obtain by reading from the z-table (as shown in the second picture below)

The z-score is = 0.7734

Then we use the following formula to work out X
z-score = (X - Mean) ÷ Standard Deviation
0.7734 = (X - 100) ÷ 15
0.7734×15 = X - 100
11.601 = X - 100
X = 11.601 + 100
X = 111.601 ≈ 112 

Hence the third quartile is 112

4 0
3 years ago
Jamie kept track of the total hours and minutes she worked this week at the local health food store.
ziro4ka [17]

Answer:

18.05

Step-by-step explanation:

3 0
2 years ago
Answer the questions
Mnenie [13.5K]

Answer:

c) x= 15

d) x= 5

Step-by-step explanation:

c)4x + 5+ 7x +10=180

solve it like usually

for d) 3x + 15+12x=90

8 0
3 years ago
Read 2 more answers
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