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2 years ago

Question 13 Help please

Mathematics

1 answer:

Nitella [24]2 years ago

4 0

9514 1404 393

Answer:

f(x) = 11x -15

Step-by-step explanation:

Often, we let x represent the input to a function. When that is multiplied by 11, the result is represented by 11x. If 15 is subtracted from that, then the expression becomes ...

11x -15

If this value is the output of function f, we write this as ...

f(x) = 11x -15

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A bag holds 11 beads. 7 are red, the rest are white. Two beads are taken at random from the bag. What is the probability that on

babunello [35]

Answer:

The probability of the first draw is 100%, because the bead will be either red or white. For the second draw, a different color must be drawn.

So, if draw 1 is white, then the probability of draw 2 being red is 7/10. and if the first draw is red, then the probability of draw two being white is 5/10.

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3 years ago

Read 2 more answers

Factor completely y^2-xy-56x^2

olga2289 [7]

You can factor this out by thinking of the factors of 56 that have a sum of -1. 7 and 8 are factors of 56 and to get a sum of -1, 8 should be negative. 7 + -8 = -1

So $y^{2} - xy - 56x^{2}$ factored out is (y+7x)(y-8x)

We can check this using FOIL
F = (y)(y) = $y^{2}$
O = (y)(-8x) = -8xy
I = (7x)(y) = 7xy
L = (7x)(-8x) = $-56x^{2}$
$y^{2} - 8xy + 7xy - 56x^{2}$ Combine like terms
$y^{2} - xy - 56x^{2}$

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2 years ago

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What is thd solution for the equation 14.8=n-0.3

Nina [5.8K]

The given equation is:

14.8 = n - 0.3

Adding 0.3 to both sides, we get:

14.8 + 0.3 = n - 0.3 + 0.3
15.1 = n - 0
15.1 = n

Thus, the value of n for which the given equation is true is 15.1

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3 years ago

Who could help me with this please.I will apreciate the answers :))))

andrew11 [14]

Okay so question one:is A 20%
question two is: A 1.75%
question three is: 88%
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2 years ago

Matt can hours. One day his friend Jessica helped him and it only took 6.96 hours. Find how long it would have taken Lea 11 hour

Paha777 [63]

Answer:

Jenny to do it alone in 18.96 hours

and Lea take it 11 hours

and both can do in 6.96 hours

Step-by-step explanation:

given data

both work complete in = 6.96 hours

to find out

how long it would have taken Lea 11 hours and how long it would take Jenny to do it alone would take Jessica to do it alone

solution

we know both can do complete work in 6.96 hours

so in 1 hour they work $\frac{1}{6.96}$ part

and if Lea do it in 11 hours

so Lea do in 1 hours = $\frac{1}{11}$ part

we consider jenny do work in x hours

so in 1 hour it complete = $\frac{1}{x}$ part

so total work in 1 hour will be

$\frac{1}{11}$ + $\frac{1}{x}$ = $\frac{1}{6.96}$

solve we get x

x = 18.95

so Jenny to do it alone in 18.96 hours

and Lea take it 11 hours

and both can do in 6.96 hours

5 0

2 years ago