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1 year ago

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Hi do you know this it says convert 5/40 to a decimal

1 answer:

Amiraneli [1.4K]1 year ago

3 0

Divide 5 by 40.

$\begin{gathered} \frac{5}{40}=\frac{1}{8} \\ =0.125 \end{gathered}$

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let a,b,c,d be four integers (not necessarily distinct) in the set {1,2,3,4,5}. the no. of polynomials x^4+ax^3+bx^2+cx+d which

Eddi Din [679]

By either long or synthetic division, it's easy to show that

$\dfrac{x^4+ax^3+bx^2+cx+d}{x+1}=x^3+(a-1)x^2+(-a+b+1)x+(a-b+c-1)-\dfrac{a-b+c-d-1}{x+1}$

The quartic will be exactly divisible by $x+1$ when the numerator of the remainder term vanishes, or for those values of $a,b,c,d$ such that

$a-b+c-d-1=0$

I'm not sure how to count the number of solutions (software tells me it should be 80), but hopefully this is a helpful push in the right direction.

8 0

3 years ago

At the holiday valley ski resort, skis cost $16 to rent and snowboards cost $19. If 28 people rented on a certain day and the re

trapecia [35]

Answer:

$18$ skis and $10$ snowboards were rented.

Step-by-step explanation:

Let the number of skis rented be $x$ and the number of snowboards rented be $y$ .

If a total of $28$ people rented on a certain day, then the total number of skis and snowboards rented that particular day is also $28$ .

This gives us the equation

$x+y=28...eqn(1)$ .

If skis cost $ $16$ , then $x$ number of skis cost $ $16x$ .

If snowboards cost $ $19$ , then $y$ number of snowboards cost $ $19y$ .

The total cost will give us another equation,

$16x+19y=478...eqn(2)$

From equation (1),

$y=28-x...eqn(3)$ .

We put equation (3) into equation (2) to get,

$16x+19(28-x)=478$

We expand the brackets to obtain,

$16x+532-19x=478$

We group like terms to get,

$16x-19x=478-532$

This implies that,

$-3x=-54$

We divide both sides by $-3$ to get,

$x=18$

We put $x=18$ into equation (3) to get,

$y=28-18$

$y=10$

Therefore $18$ skis and $10$ snowboards were rented.

7 0

4 years ago

What is the reciprocal of 5/6

mestny [16]

Answer:

-6/5

Hope this helps!

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3 years ago

Read 2 more answers

What Is the slope intersept of this equation Y-3=4(x+2)

lilavasa [31]

Answer:

4

Step-by-step explanation:

Step 1) distribute 4 to (x+2). 4(x+2)= 4x+8

Step 2) add 3 to both sides. y-3+3= 4x+8+3

Step 3) simplify by solving for y. y=4x+11

*The slope is the coeficcient (or the number infront of x), so the slope is 4

7 0

4 years ago

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Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals.

lesya692 [45]

Answer:

D.

Step-by-step explanation:

3 0

3 years ago