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3 years ago

Pls show work and answer the question

Mathematics

1 answer:

liraira [26]3 years ago

8 0

Answer:

Step-by-step explanation:

To find the area of a triangle, multiply the base and height, then divide by two

The center triangle's area is (5*6)/2, which is also 15.

Since all the triangles are congruent, multiply 15 by 4 to get the total surface area, which is 60

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Solve for x and y. 3x+8y=20. 5x+3y=23

GrogVix [38]

Answer:

x=4 and y=1

Step-by-step explanation:

Equation 1) 3x+8y=20

Equation 2) 5x+3y=23

Equation 1) 5(3x+8y=20 )

Equation 2) 3(5x+3y=23)

15x+40y=100

15x+9y=69

(Take away 40y from 9y and 100 from 69)

31y = 31

y=1

Substitute y=1 into equation 1)

3x+8=20

(Take away 8 from both sides)

3x=12

(Divide by 3)

x=4

6 0

4 years ago

Read 2 more answers

NO SCAM PLEASEEEE

damaskus [11]

The answer is 11/36

2/12 chance of rolling fours

because there are 2 sides containing a four on both dice combined and 12 sides in total.

Doubles mean you have to roll the same number simultaneously so let’s say we want to calculate the probability for double ones: then it’s 1/6 on the first dice for a one, and 1/6 on the second dice to land on a one as well.

I personally like to imagine a box like this:
_ _ _ _ _ _
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If you have one dice then it’s just a random segment on one of the lines. If you want the specific result from two dice then you want two specific segments which is also the 1 specific tile out of 36 (6 width times 6 height). So you multiply.

1/6 * 1/6 = 1/36 chance to roll double of ones

And 1/36 chance to roll double twos, threes, fours, fives, and sixes. But we don’t count the double fours because any four will do. So:

1/36 * 5 = 5/36

So for the probability of either doubles or containing a four is the probability of doubles of either number plus the probability of either dice being a four:

5/36 + 2/12 =

5/36 + 6/36 =

11/36

5 0

3 years ago

PLEASE HELLLLLLLPPPPPP!!!!!

MariettaO [177]

Answer:

Step-by-step explanation:

First, let's define the types of numbers.

Real numbers: a value that represents a quantity along a continuous line

ex: 1, 5, -6, 0.125, 45.5258,

Integer: Zero, any positive or negative number

ex: -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5....

Whole numbers: a number without fractions [not negative]

ex: 0, 1, 2, 3, 4, 5.....

Rational numbers: any number that can be expressed as the quotient or fraction

ex: 1, 2, 3, 4, 5

Irrational numbers: any number that can't be expressed at the quotient or fraction

ex: pi, [3.14.... (never ending decimal)] square root of 2....

Based on this information, the false statment would be A. I believe, because

pi is a real number and it is an irrational number.

I hope this helps!!! :)

8 0

3 years ago

Please help!! (Will give brainy!) (Geometry) (look at picture)

stiv31 [10]

Answer:

First ones 90 and the second one is 48

Step-by-step explanation:

please brainliest me

5 0

3 years ago

Can anyone help me ??

bogdanovich [222]

The answer is B 1 =52 2=66

8 0

3 years ago