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kompoz [17]
3 years ago
12

Hi help me with this too pls I can't pls​

Mathematics
1 answer:
Musya8 [376]3 years ago
4 0

Answer:

1) 3(9) +15

2) 2(-5)^2 - 11

3) (-2)^3 + 13(-2)

4) 4(6)^2 -7

5) (-9)^2 - (-9) + 10

All you have to do solve

Step-by-step explanation:

Replace the x with whatever number is in the f(number)

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1st question : Htwe Htwe made 500 cookies. She sold ¾of them and gave ⅖ of the remainder to all her friends. How many cookies we
pychu [463]

75 cookies

Step-by-step explanation:

500 × 0.25(3/4 cookies sold)= 125

125 - 0.4(2/5 gave to her friends) = 75

75 cookies remain

5 0
3 years ago
10. Which of the following functions is the inverse of the function {(1,2).(3,4).(6,8)) ? (1 point)
labwork [276]

Answer:

C

Step-by-step explanation:

Inverse of function(x,y) is equal to (y,x)

4 0
3 years ago
On the basis of extensive tests, the yield point of a particular type of mild steel-reinforcing bar is known to be normally dist
KiRa [710]
1) The formula used for determining the confidence interval is
Sample mean +/- Critical value (or z-score corresponding to 90% confidence) * Standard
error of mean
8439 +/- 1.645 * 100/sqrt 25
8439 +/- 1.645 * 20
8439 +/- 32.9
2) The only difference in this case is finding the critical value i.e., z-score corresponding to 92% confidence which is 1.75 approximately
Then the confidence interval is
8439 +/- 1.75 * 100/sqrt 25
8439 +/- 1.75 * 20
8439 +/- 35
Lower limit is 8439 - 35 = 8404
The upper limit is 8439 + 35 = 8474
6 0
4 years ago
Does anyone know this
Oksanka [162]

Answer:

c

Step-by-step explanation:

6 0
3 years ago
Hhhghjghzhdjdjdiifhjdjdb
beks73 [17]
The third one is the answer but i may be wrong
3 0
3 years ago
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