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Inga [223]
3 years ago
9

Caroline is planting flowers in her garden. She plants her first 7 flowers in 4 minutes. After 12 minutes, she has planted 21 di

fferent flowe
Plot four data points and the line of best fit to model how long it takes Caroline to plant flowers
Mathematics
1 answer:
Gre4nikov [31]3 years ago
7 0

Answer:

40

Step-by-step explanation:

use slope formula  (4-12)/(7-21) = 8/14        (8/14)*70 = 40

                         

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What is the average (arithmetic mean) of eleven consecutive integers? (1) the average of the first nine integers is 7. (2) the a
laiz [17]

Since eleven is odd, there must be a centra element, which in this case is the sixth. So, we can write 11 consecutive integers as

x-5, x-4, x-3, x-2, x-1, x, x+1, x+2, x+3, x+4, x+5

Since the arithmetic mean is the sum of the values, divided by how many they are, we have

M = \dfrac{x-5, x-4, x-3, x-2, x-1, x, x+1, x+2, x+3, x+4, x+5}{11} = \dfrac{11x}{11} = x

So, the mean of 11 consecutive integers is the 6th integer.

4 0
3 years ago
Show work, please someone help me, i'm confused still on this concept.
BigorU [14]
Answer: choice C) -15x^4y

-----------------------------------------

Explanation:

The coefficients are -3 and 5. They are the numbers to the left of the variable terms
Multiply the coefficients to get -3*5 = -15. So -15 is the coefficient in the answer

Multiply the x terms to get x^3 times x = x^(3+1) = x^4. Notice the exponents are being added

Do the same for the y terms as well: y^2 times y^(-1) = y^(2+(-1)) = y^(2-1) = y^1 = y

So we have a final coefficient of -15, the x terms simplify to x^4 and the y terms simplify to just y

Put this all together and we end up with -15x^4y which is what choice C is showing

3 0
3 years ago
The gas tank of Tyrell's truck holds 19.8 gallons. When the tank is empty, tyrell fills it with gas that costs 3.65 per gallon.
Dima020 [189]
3.65x19.8=$72.07 hit that thanks button and 5 star rating plz thankyou!!!!
7 0
3 years ago
What is measurement ​
tresset_1 [31]

Answer:

Measurement is a comparison of an unknown quantity with a known fixed quantity of the same kind.

Step-by-step explanation:

5 0
3 years ago
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Simplify 2^9/2^6<br><br> A. 2^15<br><br> B. 4^3<br><br> C. 4^-3<br><br> D. 2^3
nirvana33 [79]

Answer:

B

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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