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kenny6666 [7]
3 years ago
11

ESAY MATH PLS HELP is this sss,sa,aa,or none

Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
4 0

Answer:

SAS

Step-by-step explanation:

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Two trains are 480 miles apart. They start at the same time, and travel towards one another. The difference between the speeds o
Genrish500 [490]

Answer:

Did you just start today? It looks like you're new here. I'm also new here.

Step-by-step explanation:

I don't really know what to do either.

From what I've done so far, I don't understand it.

Sorry.

5 0
3 years ago
Five cards are randomly selected without replacement from a standard deck of 52 playing cards. what is the probability of gettin
EastWind [94]
Ok so it is a standard deck of 52 cards. Theres 4 suites: Hearts, Spades, Clubs and Diamonds.
In each suite there is 13 cards: Ace, King, Queen, Jack, 10, 9, 8, 7, 6, 5, 4, 3, and 2. The probability of you choosing 5 hearts is most likely to be 5/52.
3 0
3 years ago
The surface area of a rectangular prism is the sum of:
Anastaziya [24]

Answer:

Surface area of prism=2(l+w)h+2(lw)

Step-by-step explanation:

We are given that surface area of rectangular prism=2(lw+lh+wh)

We have to write an expression that represents the surface area of prism.

Base of prism is made from length and width

Perimeter of base =2(l+w)

Area of base=lw=Area of top

Surface area of prism=Perimeter of base multiply by height+2 area of base

Because area of base and area of top are equal.

Surface area of prism=Ph+2B=2(l+w)h+2(lw)

8 0
3 years ago
Evaluate the expression when <br> a = -4 and x=5.<br><br> -5a +x
bonufazy [111]

Answer:

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
The ages of trees in a forest are normally distributed with a mean of 25 years and a standard deviation of 4. Approximately what
harkovskaia [24]

Answer:

78.88%

Step-by-step explanation:

We have been given that

\mu=25,\sigma=4,x_1=20,x_2=30

The z-score formula is given by

z-\text{score}=\frac{x-\mu}{\sigma}

For x_1=20

z_1=\frac{20-25}{4}\\\\z_1=-1.25

For x_2=30

z_2=\frac{30-25}{4}\\\\z_2=1.25

Now, we find the corresponding probability from the standard z score table.

For the z score -1.25, we have the probability 0.1056

For the z score 1.25, we have the probability 0.8944

Therefore, the percent of the trees that are between 20 and 30 years old is given by

0.8944 - 0.1056

= 0.7888

=78.88%

6 0
3 years ago
Read 2 more answers
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