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MAXImum [283]
2 years ago
7

Help this is soooooo hard for me

Mathematics
1 answer:
Iteru [2.4K]2 years ago
5 0

Answer: Choice C  

Mean = 37.1

==================================================

Explanation:

Refer to the table below. The colum labeled "M" is the midpoint for each age interval. To find the midpoint, add up the endpoints and divide by 2. For example, the midpoint of 18 and 24 is (18+24)/2 = 42/2 = 21. Notice how the values of M are increasing by 7 each time.

The column labeled fM refers to multiplying the frequency f with the midpoint M. Example: fM = 6*21 = 126 in the first row.

Add up everything in the column labeled fM and you should get 1484. Divide this over the sum of the frequencies (40) and the mean is 1484/40 = 37.1

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A) 34y=15= <br>b) -58y=20= <br>c) -x=23=<br> d) -51=-y=​
ratelena [41]

a) 34y=15

=> y= 34-15

=> y = 19

b) -58y=20

=> y= -58-20

=> y = -78

c) -x=23

=> -1x=23

=> x= 23+1

=> x= 24

d) -51= -y

=> -51= -1y

=> y= -51+1

=> y= -50

Hope it helps!

3 0
3 years ago
The picture reeeeeeeeeeeeeeeeeeeeeeeeee
Marina CMI [18]

Answer:

D. 3x - 3

Step-by-step explanation:

To find (f-g)(x) you have to subtract each fuction

(f-g)(x) = f(x) - g(x)

(f-g)(x) = 5x -2 - (2x+1)

(f-g)(x) = 5x -2 -2x -1

(f-g)(x) = 3x -3

7 0
3 years ago
Read 2 more answers
PLEASE HELP I AM BEGGING YOU!!! I WILL GIVE BRAINLIEST AND EXTRA POINTS PLEASEEEEEEEEEEEEEEEEEE!!!!!!!
san4es73 [151]

Answer:

1. 31

2. -40

3. 28.5

4. 75

5. 6

6. -24

7. -34

8. 68

9. 8

10. 26

Step-by-step explanation:

I tried to do the best I can I hope this helps! :))

4 0
3 years ago
What is the solution to −1/4(d+1)&lt;2
kogti [31]

Answer:

d > -9

Step-by-step explanation:

-\dfrac{1}{4}(d + 1) < 2

First, multiply both sides by -4. You must also change the inequality sign since you are multiplying both sides by a negative number.

-4 \times \left(-\dfrac{1}{4}\right)(d + 1) > 2 \times (-4)

d + 1 > -8

Subtract 1 from both sides.

d + 1 - 1 > -8 - 1

d > -9

5 0
2 years ago
<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B81%20%5Ctimes%208%7D%20" id="TexFormula1" title=" \sqrt{81 \times 8} " alt=" \sqr
laiz [17]

Answer:

Step-by-step explanation:

81 = 9 * 9 = 3 * 3 * 3 *3

8 = 2 * 2 * 2 *2

\sqrt{81 * 8 } = \sqrt{3*3*3*3*2*2*2}\\\\=3 * 3 * 2 \sqrt{2}\\\\= 18\sqrt{2}

6 0
2 years ago
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