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vichka [17]
3 years ago
11

NEED HELP ASAP!!!!!!

Mathematics
1 answer:
Andrei [34K]3 years ago
4 0
After 2 hours : 9 inches left
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What’s expressions are equivalent to 4d + 6 + 2d ?
Lemur [1.5K]

Answer:

One of the expressions that are equivalent to 4d+6+2d is 6d+6

3 0
3 years ago
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John’s parents recorded his height at various ages between 36 and 66 months.
timurjin [86]

Answer:

Step-by-step explanation:

a)General least square regression line is ,

Y=a+(b*x)

Where,a=intercept. b= slope

To get line just find values of a and b.

Use Excel to find values.

First enter values of variable "age" that is y in the column A that is A1to A5 and values of variable "height" in the column B, B1 to B5.

Then for value of a use functufuas ,

=INTERCEPT(A1:A5,B1:B5)

Then hit enter ,therefore a=20.4595

For b use function as. =SLOPE(A1:A5,B1:B5)

Then hit enter.therefore b=0.3738

Therefore equation of least square regression line is

Y=20.4595+(0.3738*x)

b) to predict height at age 21 years or 252 month just put value of x=252 in the above equation.

Y=20.4595+(0.3738+252)

Y=20.4595+94.1976

Y=114.6571

Conclusion: height will be 114.6571 inches when age change by 1 unit.

7 0
3 years ago
WHATS IS -5x 2/7= I NEED HELP PLEASE
Kipish [7]

-5x 2/7 =

−10x/7

srry if it is wrong man but that is what i got

4 0
3 years ago
What is the length of side BC if AC is 5 square root 2 m?
Jet001 [13]
This is a right triangle, so AC is a hypotenuse. The other angles are each 45 degrees, so the legs AB and BC are equal length. a^2 + b^2 = c^2 a = b 2a^2 = (5sqrt2)^2 = 50 a^2 = 25 a = 5 Answer: 5
4 0
3 years ago
Can someone explain this to me:)​
Ostrovityanka [42]

Answer:

B) m = 2 , b = -3

Step-by-step explanation:

b = y-intercept

The y-intercept is -3

b = -3

m = slope

The slope is 2

m = 2

7 0
2 years ago
Read 2 more answers
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