2 years ago

Please help me on this problem

1 answer:

5 0

The answer is C.

A dilation is a transformation whose preimage and image are similar.

Since the apostrophe (') shows that these coordinate points have already been altered and the scale factor is greater than 1, we know the dilation is an enlargement. Therefore, we must divide each number by the scale factor, 7 to get the answer C.

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A discount voucher offering 15% off is sued to pay a bill

mel-nik [20]

Answer:244.8

Step-by-step explanation:

15% of y=36.72

15/100 x y=36.72

15y/100=36.72

Cross multiply

15y=36.72 x100

15y=3672

Divide both sides by 15

15y/15=3672/15

y=244.8

6 0

3 years ago

Solve this equation using quadratic form <br> f(x)=x^2-2x+6

DanielleElmas [232]

Answer:

Domain:

Solution: -∞ < x < ∞
Interval Notation: (-∞,∞)

Range:

Solution: f(x) ≥ 5
Interval Notation: [5,∞)

Step-by-step explanation:

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2 years ago

If a computer network has 60 switching nodes, in how many ways can 2 or 3 nodes fail?___________

notka56 [123]

Answer:

There are 35990 ways in which 2 or 3 nodes fail

Step-by-step explanation:

Given : A computer network has 60 switching nodes.

To Find : In how many ways can 2 or 3 nodes fail?

Solution:

We are supposed to find no. of ways can 2 or 3 nodes fail.

So, we will use combination here .

No. of ways can 2 or 3 nodes fail= $^{60}{C_2 +^{60}C_3$

Formula : $^nC_r =\frac{n!}{r!(n-r)!}$

No. of ways can 2 or 3 nodes fail= $\frac{60!}{2!(60-2)!}+\frac{60!}{3!(60-3)!}$

= $35990$

Hence there are 35990 ways in which 2 or 3 nodes fail

5 0

3 years ago

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mars1129 [50]

Answer:

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Step-by-step explanation:

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2 years ago

A rectangular plot of ground measuring 12 meters by 20 meters is surrounded by a sidewalk of a uniform width. the area of a side

bearhunter [10]

<span>The walk is 1 meter wide
check:

OK</span>

3 0

3 years ago