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seropon [69]
3 years ago
10

What is the value of a^2 + 3b divided by c - 2d when a=3, b=8, c=2 and d=5

Mathematics
1 answer:
AlladinOne [14]3 years ago
6 0

Step-by-step explanation:

(a^2+3b)/(c-2d)

substitute a=3,b=8,c=2,d=5

(3^2+3(8))/(2-2(5))

=(9+24)/(2-10)

=33/(-8)

=-4.125

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A rectangular field is 280 m by 390 m. A rectangular barn 25 m by 33 m is built in the field. How much area is left over?
igomit [66]
Field area:

280 x 390 = 109,200 m²

Barn area:

25 x 33 = 825 m²

let area:   109,200 - 825 = 108,375 m²


5 0
3 years ago
Identify the properties<br><br> 5+(2+7)=(5+2) +7<br> ^2 + ( + ) = ^2+ ( + )<br> h+0=h
TiliK225 [7]
1) 5 + ( 2 + 7) = (5 + 2) + 7

It is the associative property of the addition.

This property states that when adding 3 numbers, the grouping or association of the numbers does not change the result.

2) <span>The second expression is unreabable
</span>

<span>3) h + 0 = h
</span>

<span>It is the identity property.
</span>

This property states that 0 is the identity element of the addition and any number added to  it is equal to the same number.

AS  you know, 5 + 0 = 5, 1234 + 0 = 1234; 0 + 2548 = 2548.
3 0
3 years ago
Which set of side lengths forms a right triangle? 2 3 13, 4 6 10, 9 12 18, 15 36 39 ,
Reika [66]

Answer:

15, 36, 39

Step-by-step explanation:

when these are squared they add up to 39 squared following the Pythagorean theorem

3 0
3 years ago
Can someone help me plz and thank u
alexandr402 [8]

Answer:

<A = 44

Step-by-step explanation:

A triangle is 180 degrees

(x+59) + (x+51) + 84 = 180        >> add everything on the left side

2x + 194 = 180                          >> subtract both sides by 194

2x = -14                                     >> divide both sides by 2 to get x alone

x = -7

since you are finding A<, substitute

<A = x + 51

<A = (-7) + 51

<A = 44  

3 0
3 years ago
What is the midpoint of a line segment with the ends 8,-3 and -5,-9
grandymaker [24]
Midpoint = (8-5),(-3-9) / 2
= (3,-12)/2
= (3/2,-6)
7 0
4 years ago
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