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3 years ago

Which lengths could be the sides of a triangle?

Mathematics

1 answer:

galina1969 [7]3 years ago

5 0

345,354,354,341,098cm

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2x+5y=-7 <br> 7x+y=-8 <br> Substitution <br> Algebra 1

melomori [17]

{x,y} = {-1,-1}

hope this helps

5 0

3 years ago

A football field has these measurements. What is the area of the football field?

kotegsom [21]

Answer:

6,360 yd.

Step-by-step explanation:

To find area you multiply length times width (l*w)

120 times 53

6,360 yd

Hope I helped!! :)

Brainliest??

Have a good night/day/afternoon!!

7 0

2 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

Is any rational number an integer?

Advocard [28]

No, any integer is a rational number tho

4 0

3 years ago

Please help with math

Crank

Answer:

i think it is y=2x

Step-by-step explanation:

8 0

2 years ago