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3 years ago

Quadrilateral A'B'C'D' is the image of quadrilateral ABC D under a dilation.

Mathematics

1 answer:

Semenov [28]3 years ago

4 0

Answer:

Step-by-step explanation:

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Round it to 1 significant figure

balu736 [363]

Answer:

2 ( one significant figure)

Step-by-step explanation:

798/8 x 41 in order to express it in 1 significant figure

we will multiply the denominator and then divide both the numerator and denominator.

so,

798/328

2.453

now to one significant figure it will be 2

3 0

4 years ago

Help please it’s due tomorrowit would mean a lot

Ne4ueva [31]

Where is the pattern?

4 0

3 years ago

Evaluate the expression when a=-4 and x=5.<br> a- 1- 2x<br> help pls

ivolga24 [154]

Answer:

-15

Step-by-step explanation:

So it's a-1-2x.

rewrite as -4-1-(2*5)

-4-1-10

-4+-1-10

-5+-10

-15

5 0

3 years ago

Read 2 more answers

Final exam scores are normally distributed with a mean of 74 and a standard deviation of 6. Approximately, what percentage of fi

notka56 [123]

Answer:

81.86%

Step-by-step explanation:

We have been given that final exam scores are normally distributed with a mean of 74 and a standard deviation of 6.

First of all we will find z-score using z-score formula.

$z=\frac{x-\mu}{\sigma}$

$z=\frac{68-74}{6}$

$z=\frac{-6}{6}=-1$

Now let us find z-score for 86.

$z=\frac{86-74}{6}$

$z=\frac{12}{6}=2$

Now we will find P(-1<Z) which is probability that a random score would be greater than 68. We will find P(2>Z) which is probability that a random score would be less than 86.

Using normal distribution table we will get,

$P(-1$

$P(2>Z)=.97725$

We will use formula $P(a$ to find the probability to find that a normal variable lies between two values.

Upon substituting our given values in above formula we will get,

$P(-1$

Upon converting 0.81859 to percentage we will get

$0.81859*100=81.859\approx 81.86$

Therefore, 81.86% of final exam score will be between 68 and 86.

3 0

3 years ago

What is 2+2x•13(14-2x)

ivolga24 [154]

184-24x this is answer first just distribute abs then combine like terms

6 0

3 years ago