How do you write 3/8 as a decimal

Mathematics

2 answers:

Dmitry [639]3 years ago

7 0

3.8, 0.38, 3.80 or 38.0

lesya692 [45]3 years ago

6 0

The answer is 0.375. Test it to see, it’s correct.

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Find a quadratic model for the set of values: (-2, -20), (0, -4), (4, -20). Show your work.

Ivahew [28]

Ok... so this question can be solved by using simultaneous equations.

Use the general from of a parabola

$y = ax^2 + bx + c$

you know the value of c, the y-intercept... y = -4

which means the equation is

$y = ax^2 + bx - 4$

now use the other 2 points to get 2 equations in 2 unknowns

(-2, -20) just substitute

$-20 = (-2)^2a + (-2)b - 4 ~~~or~~~ -20 = 4a - 2b - 4$

this becomes

$4a - 2b = -16$

now the other equation using (4, -20)

The simplified form is

6 0

2 years ago

1) Jessica charges $8 an hour for babysitting

nordsb [41]

A. The independent variable is time, as time is manipulating the value of her salary.

b. The dependent variable is her cost because what she charges for babysitting depends on how long she works.

c. y = 8x
y = how much she charges for this job
8 = the amount she charges per hour
x = number of hours babysat

6 0

2 years ago

Eva incorrectly classifies the quotient -(-81/-9) as positive.

NISA [10]

The answer is negative because, ( -81/-9) =(+9). -(+9) = -9. Maybe for got the - sign before the equation

6 0

2 years ago

Let

kow [346]

Answer:

can write it again soon as you can do it again

6 0