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3 years ago

13

megans dog sparky eat 4 1/4 cups of food each day. explain how megan can determine how much food to give sparky is she needs to

feed him only 2/3 as much

1 answer:

stira [4]3 years ago

8 0

$( \frac{2}{3} )$ × $( \frac{17}{4} )$

$\frac{34}{12}$

$2 \frac{10}{12}$

$2 \frac{5}{6}$

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Please help! due in next 10min!?!

Paladinen [302]

Answer:

21.99

Step-by-step explanation:

This is simple just times 3.14 and 7 to get 21.99

7 0

3 years ago

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Write the equatoin of a graph that has Roots of x={-2,0,4} and has a point of (-1,10)

zheka24 [161]

Step-by-step explanation:

to have "roots" means that the function delivers 0 as function result for these values of x.

so,

f(x) = 0 for x = -2, x = 0 and x = 4

we can build this function as a product of factors.

each factor is an expression of x that turns 0 for the given value of x.

what is the simplest expression of x that turns 0, when x = -2 ?

well : x + 2

as you can easily see, this is 0, when x = -2.

and the easiest existing of x that is 0, when x = 0 ?

totally simple : just x.

and then x - 4 for x = 4

so, our function is

f(x) = x(x + 2)(x - 4)

but : this is one of infinite possibilities.

let's see what happens, if we use the x coordinate (-1) of the given point (-1, 10).

we know, the result must be 10.

-1×(-1 + 2)(-1 - 4) = -1×1×-5 = 5

aha ! so, in order to get 10 instead of just 5 we must multiply the whole thing by 2.

as n×0 is always still 0, this does not change our 0 points (or roots).

so, our full function is :

f(x) = 2x(x + 2)(x - 4)

or, if you need the function as a polynomial, we need to do the multiplications :

f(x) = 2x(x² - 4x + 2x - 8) = 2x(x² - 2x - 8) = 2x³ - 4x² - 16x

3 0

2 years ago

Each package of paper contains 100 sheets. At the beginning of the school year, each of Mr.Castillo 's 34 students brought in on

oksian1 [2.3K]

Answer:

3400

Step-by-step explanation:

Just multiply 100 by 34.

7 0

3 years ago

PLEASE HELP!!!!! How many 4-digit numbers divisible by 5, all of the digits of which are even, are there?

saul85 [17]

Answer:

I assume you know Arithmetic Progression .

so, we have to find the first and last 4-digit number divisible by 5

first = 1000 , last = 9990

we have a formula, $a_{n}$ = a + (n-1)d

here, $a_{n}$ is the last 4-digit number divisible by 5.

n is the number of 4-digit even numbers divisible by 5

d is the common difference between the numbers, which is 10 in this case

a is the first 4-digit number divisible by 5

9990 = 1000 + (n-1)*10

899 = n-1

n = 900

Hence, there are 900 4-digit even numbers divisible by 5

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3 years ago

100min to 2h as a ratio

Usimov [2.4K]

Answer:

100:2 or 50:1

Step-by-step explanation:

Hope this helps!

=]

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3 years ago

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