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Lena [83]
1 year ago
8

Please help me with this it is hard for me but not for my seniors First person with correct answer gets Brainliest answer.

Mathematics
1 answer:
kifflom [539]1 year ago
3 0

Answer:

Step-by-step explanation:

a. 2x + 36

2. 6a + 15b

3. 35x + 15y

4. 3p + 2q

5. 3a + 8

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PLEASE ANSWER!!!!!
Elenna [48]

Answer:

There is a significant difference between the means of the two population

Step-by-step explanation:

The mean number of catfish caught daily at Lake Martin is 85, with the number of catfish ranging from 75 to 140.

Range = 140 - 75 = 65

The mean number of catfish caught daily at Smith Lake is 104, with the number of catfish ranging from 96 to 183.

Range = 183 - 96 = 87

Difference in mean = 104 - 85 = 19

If the confidence interval includes 0 we can say that there is no significant difference between the means of the two populations, at a given level of confidence

But by considering the mean difference and the value of range, we can say that

There is significant difference between the means of the two population

3 0
2 years ago
Solve this problem<br> √-16
a_sh-v [17]

Answer:

4i

Step-by-step explanation:

\sqrt{-1}  = i

Therefore \sqrt{-16} = \sqrt{16} \sqrt{-1} \\=4i

3 0
2 years ago
OAB is a sector of a circle <br>what is the area of the sector
oee [108]

Answer:

12.56 square cm

Step-by-step explanation:

Central \:angle \:(\theta) = 40°\\Radius \: (r) = 6 cm

Let A be the area of the sector of circle.

\therefore \: A =  \frac{\theta }{360 \degree}  \times \pi {r}^{2}  \\  \\=  \frac{ 40 \degree}{360 \degree}  \times 3.14\times {6}^{2}  \\  \\    =   \frac{ 1}{9}  \times 3.14 \times  36 \\  \\  =   3.14 \times 4 \\ \\ = 12.56 \:  {cm}^{2}

6 0
3 years ago
Read 2 more answers
The circumference of a bowling ball is 8pi in. Find the surface area of the bowling ball. Express your answer in terms of pi.
MrRa [10]
Surface area of a sphere (3D solid's name for ball shaped object) is given by

SA = 4 \pi r^{2}

We do not know the radius of the sphere but we can work it out from the circumference 8 \pi

Circumference = 2 \pi r
8 \pi =2 \pi r
r= \frac{8 \pi }{4 \pi }=2

then
SA=4 \pi  (2)^{2} =16 \pi
7 0
3 years ago
Suppose you multiply a whole number greater than one by the fraction 3/5. will the product be greater than less than or equal to
Damm [24]
Ittttts obviously be greater than   3/5 
 5 * 3/5 to get 3!!
5 0
3 years ago
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